67 results about "Redox Activity" patented technology

The present application relates to the technical field of electrochemical sensor, and especially to a sludge-based biochar suspension for electrode modification, a preparation method and application thereof, wherein the sludge-based biochar is prepared by taking brewery residual sludge as raw material, and then the ash is removed by HF solution and oxidized by nitric acid solution, so that the sludge-based biochar generates more pores, the specific surface area is improved, and meanwhile, the surface has more functional groups, such as nitro group and carboxyl group, which is beneficial to electrodeposition of CoS with high conductivity and high redox activity on the surface.

The invention relates to the technical field of microelectronic devices, in particular to a single-molecule memristor-rectifier device based on supramolecular assembly and a preparation method thereof. According to the preparation method, the guest molecule B is covalently connected with the tail end of the graphene electrode pair, so that stable and tight interface bonding between the supramolecular functional molecule and the electrode can be ensured; and then soaking the graphene electrode pair connected with the guest molecule B in a solution containing the host molecule A and the guest molecule C to form a supramolecular functional molecule between the graphene electrode pair. The guest molecule C in the supramolecular functional molecule has intrinsic oxidation-reduction activity, and the molecular structure of the guest molecule C can generate a reversible electron gain and loss process, so that controllable and reversible adjustment of charge distribution in the molecule is realized. Under the action of an electric field, through the reversible oxidation-reduction reaction of the guest molecule C, significant changes of intramolecular charge distribution and electron transmission characteristics are triggered, and finally reliable switching of high and low resistance states of the device is achieved.

The application discloses a kind of detection pesticide water amitraz integrated organic photoelectrochemical transistor sensor construction method.The application is integrated on the same fluorine-doped tin oxide conductive glass chip by laser etching technology to have the gate, source, drain three electrodes of organic photoelectrochemical transistor.In order to improve the activity and stability of grating material, the method of encapsulating Pd NPs in Cu-MOF and pyrolyzing is adopted, and Pd NPs / p-Cu-MOF is formed.Pyrolysis Cu-MOF with three-dimensional MOF structure as active carrier can load more Pd NPs, and the redox active copper metal elements contained therein will cause electron transfer between carrier and Pd NPs, so as to adjust the electronic state of metal active site and improve its catalytic performance.Schottky junction is formed between Pd NPs and p-Cu-MOF, which promotes the separation of electrons and holes.Pd NPs / p-Cu-MOF is used as photoactive gate material, and amino amitraz aptamer with carboxyl on the material is used as recognition element, so as to realize the OPECT sensing detection of ICP.

The invention discloses application of ferrocenyl conjugated microporous polymers Fc-CMPs in a composite solid propellant and the composite solid propellant, the ferrocenyl conjugated microporous polymers Fc-CMPs are porous organic polymers which take ferrocenyl groups as conjugated functional units and are connected through covalent acetylenic bonds, and the ferrocenyl conjugated microporous polymers Fc-CMPs have excellent thermal stability and permanent porosity, and can be used for preparing the composite solid propellant. The material is solid powder, is insoluble in a traditional organic solvent and does not migrate, and a ferrocene unit serves as a constituent part of a polymer framework and an oxidation-reduction active site and is dispersed in a two-dimensional conjugated network structure of a composite solid propellant. When being used as a burning rate catalyst to be applied to AP decomposition, the ferrocene burning rate catalyst can obviously reduce the high-temperature decomposition peak temperature of AP, and solves the migration problem of a traditional ferrocene burning rate catalyst in a composite solid propellant system. The Fc-CMPs are applied to an AP decomposition catalysis scene for the first time, and a new direction is provided for development of a composite solid propellant burning rate catalyst.

The invention discloses a dual-mode detection kit for highly sensitive detection of ERalpha based on HRP-streptavidin. The dual-mode detection kit comprises the following raw materials: a glassy carbon electrode, 1-AP-CNHs, AuNPs, Sh-Apt, MCH, Bio-Ab, and HRP-streptavidin. The invention successfully constructs an electrochemical detection kit for detecting ERalpha with high sensitivity on the basis of the 1-AP-CNHs / AuNPs composite material. According to the invention, due to the redox activity of HRP-streptavidin, the HRP-streptavidin and H2O2 are subjected to redox reaction to generate a current signal; in addition, hydrogen peroxide can be catalyzed to generate. OH free radicals, and the free radicals can oxidize TMB to generate blue products, so that colorimetric reaction is initiated, and ERalpha can be detected more accurately. The electrochemical-colorimetric dual mode of the 3D 1-AP-CNHs / AuNPs composite material and the HRP-streptavidin for high-sensitivity detection of the ERalpha disclosed by the invention greatly improves the detection accuracy. The kit has the advantages of good selectivity, strong stability, high sensitivity, anti-interference performance, environmental protection and the like.

The invention discloses a sodium-rich positive electrode material, a preparation method thereof and a sodium ion battery, the component of the positive electrode material is represented as NaxM1yFe1 / 3Sb1 / 3O2, and the element M1 is one or more of inactive metal elements without oxidation-reduction activity, such as Li, Na, Mg, Zn, Ca and the like. Wherein 1 < = x < = 4 / 3, 0 < = y < = 1 / 3. The positive electrode material is rich in sodium ions and has a special superlattice structure, a sodium ion battery prepared from the positive electrode material is high in reversible capacity and relatively high in capacity retention ratio, the problem that the capacity of the positive electrode material in the sodium ion battery is not high is solved, and the energy density of the battery is improved.

The application discloses a kind of by mesoporous Fe 0 Nanometer material enhances the method for activity of gallic acid and application thereof.The present application fixes gallic acid (GA) with redox activity in mesoporous zero-valent iron nanoparticles (Fe 0 NPs), and then encapsulated by SiO2 outer layer containing disulfide bond (denoted as Fe 0 @GA-ss-SiO2NPs). With the help of intracellular glutathione, oxygen molecules are activated by electron transfer, and a large amount of O2 ·‑ And H2O2 are spontaneously generated, and the sustained high concentration of Fe 0 Fe 2+ Further catalyzes the decomposition of H2O2, and generates highly oxidized ·OH free radicals. At the same time, GA quinone derivatives produce 1 O2 by Russel mechanism. In vitro cell experiments confirm that the nanometer material can cause cancer cell ferroptosis, and exhibits high-efficiency cancer cell killing effect at ultra-low dose.

The application provides a preparation method of a specific stoichiometric ratio of O3 type layered sodium ion battery positive electrode material. By finely controlling the ratio of Ni, Fe and Mn, the main redox activity is controlled in a specific electric pair range, the structure stability and the electrochemical performance can be improved, and the phase transition can be effectively inhibited. The performance improvement is attributed to the favorable electronic structure given by the specific component ratio, which promotes the Mn 3+ / Mn 4+ and Fe 2+ / Fe 3+ redox couples to participate in cooperation, thereby expanding the charge compensation window and improving the structure stability. The precursor material is obtained by a simple coprecipitation method, and the obtained material has good consistency and low cost after further high-temperature calcination. The prepared sodium ion battery positive electrode material has excellent performance and is suitable for large-scale production.

The invention discloses a layered sulfide sodium-ion battery positive electrode material and application, and belongs to the technical field of sodium-ion battery positive electrode materials, the layered sulfide sodium-ion battery positive electrode material comprises a two-dimensional layered compound Na2AgSbS3, and can also comprise a carbon-based material. The preparation method of the two-dimensional layered compound Na2AgSbS3 comprises the following steps: mixing a silver source, an antimony source, a sulfur source and a sodium source, dissolving to obtain slurry, uniformly dispersing the slurry, sealing, heating at 150-180 DEG C for 110-130 hours, and purifying the obtained product to obtain the two-dimensional layered compound Na2AgSbS3. The layered sulfide sodium ion battery positive electrode material disclosed by the invention is excellent in structural stability, rich in intrinsic sodium and high in first efficiency, has high-potential oxidation-reduction activity, is beneficial to rapid transportation of Na < + > due to a layered channel, and is high in electrolyte compatibility and wide in application prospect.

The invention relates to the field of functional material technologies and water treatment, in particular to a halogen coordination copper-based MOF material and a preparation method and application thereof. The preparation method comprises the following steps: dissolving bivalent copper salt, a nitrogen-containing organic ligand, alkali and chloride in deionized water, carrying out hydrothermal reaction, separating, washing and drying to obtain the halogen-coordinated copper-based MOF material. The halogen coordination copper-based MOF material is synthesized through one-step hydrothermal reaction, the raw material cost is low, the preparation process is simple, and the prepared halogen coordination copper-based MOF material has Cu (I) redox activity, can achieve high adsorption and excellent selectivity on Ag < + > and has important significance on efficient recovery of Ag < + > in complex water.

The present application relates to a kind of preparation methods of COFs iodine vapor electrochemical sensor based on redox activity, which comprises adding COFs with redox activity into methanol, obtaining a mixture, transferring the mixture into the active area of interdigital electrode, evaporating solvent by heating, and obtaining iodine vapor electrochemical sensor.The iodine vapor electrochemical sensor of the present application has high stability, high selectivity and high sensitivity.When air mixed with iodine vapor passes through the electrochemical sensor, iodine is captured by the polymer film.Based on redox reaction, the impedance of the electrochemical sensor decreases rapidly, and iodine vapor can be detected sensitively and quickly.The preparation is simple, the cost is low, the process is simple and easy to produce, and the adsorption capacity is high, etc., and has good application prospect in the field of iodine vapor sensing technology, etc.

The invention relates to a method for electrochemically detecting chloramphenicol by using molecular imprinting. The method is characterized in that a chloramphenicol molecularly imprinted polymer prepared from a temperature-sensitive monomer N-isopropylacrylamide and Dawson type tungsten phosphate (P2W18) are jointly modified on a substrate electrode through a simple and controllable electrostatic layer-by-layer self-assembly method. The modified electrode synthesized by the method disclosed by the invention is used as a working electrode, a saturated calomel electrode is used as a reference electrode, a platinum electrode is used as an auxiliary electrode, and the electrochemical sensing performance of the modified electrode on chloramphenicol is respectively evaluated by cyclic voltammetry, differential pulse voltammetry and square wave voltammetry. According to the modified electrode, the sensitivity of an electrochemical signal is synergistically enhanced through the high-selectivity imprinting cavity of the molecularly imprinted polymer and the rapid and reversible oxidation-reduction activity of P2W18, the detection linear range of chloramphenicol is 0.1 nM to 10 [mu] M, and the detection limit of differential pulse voltammetry is as low as 0.145 nM; and a good application prospect is provided for preparing a uniform and controllable molecularly imprinted polymer composite modified electrode material in the future. At present, an indissolvable molecularly imprinted polymer material is integrated into an electrochemical sensor through an electrostatic layer-by-layer self-assembly technology, so that the research on improving the selectivity of chloramphenicol detection and reducing the detection limit is rarely reported.

The application belongs to the technical field of capacitors, and discloses a nickel-iron Prussian blue supercapacitor electrode material, a preparation method thereof and a supercapacitor, which comprises the following steps: dissolving nickel chloride hexahydrate, iron trichloride hexahydrate and trisodium citrate dihydrate in water to obtain reagent A, dissolving potassium ferricyanide in water to prepare a solution to obtain reagent B; slowly adding reagent B into reagent A under room temperature, stirring, and then placing the mixed solution under room temperature, washing, centrifuging, collecting the precipitate, and vacuum drying to obtain a nickel-iron Prussian blue material PBA; by adjusting the amount of trisodium citrate and the ratio of nickel to iron, the two play a synergistic role to achieve the effect of high specific capacitance (140.25 F·g ‑1 ) and cycle stability (84.35% retention rate after 2000 cycles), and when the two synergistically act, the structural stability and redox activity of the material can be effectively enhanced, and finally the balance between high specific capacitance and excellent cycle stability is achieved.

The invention relates to a Pd-SA / WOS ternary composite gas-sensitive material as well as a preparation method and application thereof, and belongs to the technical field of semiconductor gas sensors. According to the Pd-SA / WOS ternary composite gas-sensitive material, the microstructure of the ternary composite gas-sensitive material is that Pd is uniformly distributed on the surface of a WS2 / WO3 compound in a monatomic form, the WS2 / WO3 compound is of a flower-shaped structure assembled by WS2 / WO3 nanosheets, and the mass ratio of WS2 to WO3 in the WS2 / WO3 compound is 1: (1.2-1.8). The obtained material has high oxygen vacancy, high oxidation-reduction activity, optimized morphological characteristics and an ideal energy band structure. In the aspect of hydrogen detection, the material has the advantages of low working temperature, high response speed, high sensitivity, good selectivity and the like, and can be used for monitoring and early warning of hydrogen leakage.

The invention relates to the technical field of catecholamine detection, in particular to a copper-doped carbon dot with similar catechol oxidase activity as well as a preparation method and application of the copper-doped carbon dot. The copper-doped carbon dot provided by the invention can be used as a nano-enzyme for specific catalytic oxidation of catecholamine, so that catecholamine is detected by a colorimetric method. Copper atoms in the copper-doped carbon dots are dispersed in a monatomic form, and a local coordination structure is Cu-N3O which is similar to metal active sites in natural enzyme; according to the structure, the electron transfer capability and the redox activity of a Cu center are remarkably enhanced, so that the structure shows efficient catalytic activity and substrate specificity in a catecholamine oxidation reaction.

A wellbore fluid having a pH greater than or equal to 5 is produced through alkalization of an aqueous electrolyte solution comprising an isopolymetalate. The alkalization of the aqueous electrolyte solution may be performed using an electrolytic cell comprising a chamber configured to hold the aqueous electrolyte solution, a cathode and an anode immersed in the aqueous electrolyte solution, and an electrical power source configured to generate a potential difference between the cathode and the anode. Alkalization-induced redox activities change in surface functional groups drives chemistries in alkaline isopolymetalate-based fluids, increasing amenability to polymers and increasing functionalities. Alkalization by electrolysis of the aqueous electrolyte solution simultaneously produces the wellbore fluid and hydrogen gas.

The invention relates to the technical field of high polymer material synthesis, and discloses a composite polymerization inhibition regulated all-water-based polyvinyl butyral solution and a preparation method thereof, and the solution is prepared from polyvinyl alcohol, deionized water, a metal complexing anchoring agent, an interface polymerization inhibitor, a grafting monomer, a chain transfer agent, an initiator, an acetalation reagent and other raw materials. The preparation method comprises the following steps: constructing a redox active site on a polyvinyl alcohol chain segment by using a metal complexing anchoring agent; constructing a water phase polymerization inhibition environment by utilizing an interface polymerization inhibitor; synchronously dropwise adding a grafting monomer and an initiator to carry out graft polymerization; and finally, carrying out variable-temperature acetalation reaction. Through the synergistic effect of metal coordination guiding and the interface polymerization inhibition effect, the dynamic control of the grafting reaction is realized, and the homopolymerization of the grafting monomer is effectively inhibited. And the introduced hydrophilic side chain is used for preparing the uniform and stable full-water-based polyvinyl butyral solution with high acetalization degree under the condition of no organic solvent through electrostatic repulsion and hydration layer action.

The application discloses a transition metal doped cerium oxide-three-dimensional graphene composite material rich in oxygen vacancies and a preparation method. 2‑x The chemical formula of the composite material is TM-CeO 2‑x / 3D Gr, wherein x is in the range of 0.09-0.56, and TM is one of Fe, Co, Ni, Mn or Cr. The transition metal doping can introduce a large number of oxygen vacancies in CeO2 by using the difference in valence states, thereby optimizing the electronic structure of the material, improving the redox activity, and enhancing the conductivity of CeO2. The TM-CeO 2‑x / 3D Gr composite material has significantly improved electrochemical performance. When the composite material is assembled into a flexible supercapacitor and subjected to performance testing, the supercapacitor exhibits excellent electrochemical performance and mechanical properties.

The invention relates to a soluble covalent organic framework (COF) and application thereof in a lithium metal battery. The covalent organic framework is formed by condensing aromatic amine with a methyl polyethylene glycol (mPEG) side chain and an aromatic aldehyde monomer, and has high crystallinity, redox activity and ion channel conductivity. The COF can be used as an artificial solid electrolyte interface layer (ASEI) to be coated on the surface of a lithium metal negative electrode, so that the interface stability is improved, and the growth of lithium dendrites is inhibited. Experiments show that the material shows excellent cycling stability and capacity retention ratio in an ester electrolyte, and is suitable for a new generation of high-performance rechargeable lithium metal batteries.

This invention relates to the field of photothermal catalyst technology, specifically to a photothermal catalytic material for recycling waste polypropylene, its preparation method, and its application. The photothermal catalytic material is a composite of rare earth metals and a first metal. The rare earth metals include cerium, and the first metal includes copper, gallium, cadmium, and ruthenium. The five-element synergistic introduction of CeCuCdGaRu into the photothermal catalytic material forms abundant surface active sites and electronic structures. The coupling effect between the metals in terms of redox activity, electron transfer capability, and photothermal response capability gives the photothermal catalytic material a broad spectrum of absorption capability and excellent thermal stability. It can efficiently absorb sunlight or near-infrared radiation and rapidly convert it into heat energy, causing the local temperature to rise rapidly to the critical temperature range required for polypropylene pyrolysis. This causes the surface of the waste polypropylene to melt and fully contact the catalytic surface. At the same time, light irradiation excites the polymer chains to generate free radicals, accelerating their breakage and transformation, providing a new technical path for the high-value recycling of waste plastics.

This invention provides a lithium metal electrolyte for suppressing gas production, as well as lithium metal and lithium-ion batteries, belonging to the field of lithium-ion battery technology. The electrolyte of this invention includes lithium salt, organic solvent, and additives. This invention uses organosilicon additives as "molecular decoupling agents," which can simultaneously passivate the positive electrode surface, reconstruct a robust and highly ionicly conductive negative electrode interface, and capture and oligomerize key shuttle species at the source, causing them to lose their redox activity, thereby blocking the chain reaction of gas generation. Soft-pack batteries prepared with this electrolyte show a reduction of approximately 90% in gas production for lithium metal batteries and approximately 95% in lithium-ion batteries after one month of storage at high temperature and 100% SOC. No gas production is observed in lithium metal and lithium-ion batteries after one month of storage at high temperature and 50% SOC, solving the industry problem of severe gas production in lithium metal and lithium-ion batteries under high temperature and high charge conditions.

The application discloses a water-based liquid electrode battery based on self-adsorption and self-layering effect, which is prepared by dissolving hydrophobic imidazole-containing water-soluble salt and double-trifluoromethyl sulfonimide ion-containing water-soluble salt in deionized water solution respectively, mixing and standing the two water solutions, mixing adsorptive carbon material, conductive carbon black and polyvinylidene fluoride, dispersing in an organic solvent, stirring into a thick mixture with a sugar-like consistency, smearing on a current collector, drying in a vacuum drying box, using commercial zinc foil as an anode of the battery, using Whatman filter membrane soaked by 3 mol / L zinc triflate as a positive and negative electrode diaphragm, and using the prepared ion liquid soaked current collector as a cathode to construct the water-based liquid electrode battery based on self-adsorption and self-layering effect. The self-assembly 1-ethyl-3-methyl imidazole double (trifluoromethyl sulfonic) acyl imidazole liquid electrode realizes liquid self-separation, fixation of redox active material and ion conduction at the same time.

The invention discloses a positive electrode material, a positive plate comprising the positive electrode material, an electrochemical device and electronic equipment, and relates to the technical field of electrochemical energy storage. The positive electrode material provided by the invention is formed by mixing lithium cobalt oxide and an organic positive electrode material containing both a cyano functional group (-CN) and an imino functional group (-C = N-). According to the scheme, the good electrochemical property of the lithium cobalt oxide and the high gram volume characteristic of the organic positive electrode are fully combined, the performance complementation is achieved, and the overall energy density and power performance of the battery can be improved. Meanwhile, a cyano functional group contained in the organic positive electrode material can effectively restrain the problem of cobalt dissolution of lithium cobalt oxide, and the cycling stability is enhanced; the imino group can effectively improve the conductivity and redox activity of the material. The positive electrode material can effectively inhibit cobalt dissolution in the battery circulation process, reduce the circulation attenuation rate, improve the battery circulation stability, prolong the service life of a battery cell and improve the gram volume, and has an extremely wide application prospect in the field of secondary batteries.

The invention belongs to the technical field of reclaimed water purification methods, and particularly relates to an artificial wetland reclaimed water organic matter removal method based on manganese ore sand modification, which comprises the following steps: step 1, carrying out preliminary modification on a manganese ore sand filler in an artificial wetland reactor through a Mn < 2 + > solution; step 2, carrying out further modification on the manganese ore sand filler in the constructed wetland reactor through a potassium permanganate solution; step 3, enabling the concentration of Mn < 2 + > in the constructed wetland reactor to reach a set standard through backwashing; and step 4, starting to operate the constructed wetland reactor to purify the reclaimed water. The surface of the modified manganese ore adsorbs negatively charged organic matters such as humus under the action of electrostatic attraction, and oxygen deficiency active sites catalyze water molecules to generate active oxygen and degrade the organic matters, so that the specific surface area and adsorption sites of the manganese ore can be greatly increased, and the oxygen deficiency catalytic oxidation reduction activity of the surface of the manganese ore can be enhanced; the catalytic degradation efficiency of the material on organic matters is promoted.

This invention provides an asbestos tailings-based material for the reduction of hexavalent chromium and its preparation method. The material uses asbestos tailings as raw material, which is solidified in an alkaline silicate system and foamed to form a porous magnesium silicate framework. An MXene-oxalic acid intercalated composite is loaded and confined within the pores of the porous framework through vacuum and pressure impregnation. The redox activity of MXene is utilized to achieve efficient reduction of hexavalent chromium to trivalent chromium, while the intercalated oxalic acid stabilizes and fixes the reduction product. Furthermore, an antioxidant functional layer is constructed in situ on the material surface to inhibit the deactivation and re-oxidation of active components in an oxygen-containing water environment, ultimately improving the material's hexavalent chromium removal efficiency, product fixation ability, and long-term stability.

The invention relates to the technical field of lithium ion batteries, in particular to a bipolar covalent organic framework and carbon nanotube composite material as well as a preparation method and application thereof. According to the bipolar organic covalent framework electrode, N, N, N ', N'-tetraphenylene-1, 4-phenylenediamine and phephthaldehydrate serve as construction units, in-situ growth is carried out on a carbon nano tube, and TATP-COF (at) CNT is synthesized through a solvothermal method. According to the method, n-type and p-type redox active sites are simultaneously integrated in a bipolar COF, and the obtained organic positive electrode effectively stores positive ions and negative ions during charging and discharging, so that the inherent advantages of two molecular types, including high capacity and high voltage of the battery, are utilized; and in-situ growth is carried out on the CNT, so that the accessibility of active sites and the charge transfer efficiency are ensured.

The invention provides a composite lithium-rich manganese-based material and an in-situ coating preparation method thereof, the composite lithium-rich manganese-based material is an AMnB2O6 coated composite lithium-rich manganese-based material, the AMnB2O6 has a double perovskite structure, and the mass of an AMnB2O6 coating layer is 0.5%-5% of the mass of the composite lithium-rich manganese-based material; the chemical formula of the composite lithium-rich manganese-based matrix material is Li < 1.2 > Ni < x > Co < y > Mn < z > O < 2 >. A uniform, continuous and chemically stable AMnB2O6 coating layer is formed on the surface of the positive electrode material, so that the redox activity of oxygen anions is effectively inhibited, electrolyte decomposition and harmful phase change are reduced, and the structural stability and cycle performance of the material are remarkably improved. The positive electrode material disclosed by the invention is particularly suitable for a high-energy-density lithium ion battery, and can meet the requirements of an electric automobile and a large-scale energy storage system on long cycle life and high safety.

The present disclosure relates to redox active materials, such as the compound of formula (I), comprising at least one 2,5-dithio-7- azabicyclo(2.2. l)heptane unit connected to a surface thereof, as well as processes for making said redox active materials. The present disclosure relates to a method for recovering a metal, comprising reacting a metal in oxidized state with said redox active material. The present disclosure relates to uses of these redox active materials in sensors, electronic materials and for extracting metals.

Printable, molecule-selective core-shell nanoparticles that couple a redox-active core with a molecularly imprinted polymer (MIP) shell. The core may comprise nickel hexacyanoferrate nanocubes with improved redox stability in physiological media. A thin MIP shell may be formed by templated copolymerization (e.g., methacrylic acid with ethylene glycol dimethacrylate) around the nanocubes, followed by template extraction to generate target-complementary binding cavities. Monomer selection may be guided computationally to maximize binding energy and selectively for a chosen analyte. Target binding within the MIP shell may modulate interfacial electron transfer at the core, enabling more robust and reversible electrochemical transduction. The nanoparticles may be formulated into stable, inkjet-printable dispersions via optimized solvent systems and exhibit cytocompatibility, anti-biofouling behavior, thermal resilience, and long room-temperature shelf stability.

The present application relates to the technical field of probabilistic bit device, and especially relates to a probabilistic bit device based on bias control and a preparation method thereof. The probabilistic bit device comprises an electrode pair and a probabilistic bit molecule, and the probabilistic bit molecule is connected between the electrode pair. The skeleton core is a symmetric or near-symmetric biferrocene group, and the two ferrocene units are equivalent redox active centers, and the redox potential is similar, which lays a foundation for state reversible switching and uniform charge delocalization. The ferrocene unit has excellent chemical stability and no thermal degradation problem; the intermediate bridging group can control the electronic coupling strength, which ensures the charge migration across the sites and avoids the coupling of the strong state merging. The results show that in the bias range of 260 mV-400 mV, the probabilistic bit molecule can be switched between the reduced state and the mixed valence state, and then the high and low state ratio of the device is changed, and finally a stable and controllable bias control type probabilistic bit device is constructed.