68 results about "Carbon nanocomposite" patented technology

The invention belongs to the technical field of preparation of wave-absorbing materials, and particularly relates to a cobalt-based nitrogen-doped carbon nano composite material with a hollow cubic structure as well as a preparation method and application thereof. Comprising the following steps: taking ZnCo-ZIF with a nano cubic structure as a core, coating ZnCo-ZIF with polydopamine by adopting a precipitation method to form a precursor with a core-shell structure, and carbonizing the precursor at 800-900 DEG C to obtain the cobalt-based nitrogen-doped carbon nano composite material with the hollow cubic structure. According to the invention, the dielectric loss capability can be enhanced by using the conductivity and interface polarization effect of the coated carbon layer, and the Co particles introduce strong magnetic loss; meanwhile, due to interface polarization caused by abundant heterogeneous interfaces existing between the Co particles and the coating carbon layer, between the magnetic particles and the carbon nanotubes and between the carbon matrix and the carbon nanotubes in the composite material, the impedance matching characteristic can be improved, and high reflection loss and wide effective absorption bandwidth can be achieved under the low matching thickness.

The invention provides a preparation method of a transition metal nitrogen-carbon nano composite material and application of the transition metal nitrogen-carbon nano composite material in detection of hydroquinone, and belongs to the technical field of composite material preparation.The preparation method comprises the steps that a cobalt nitrate solution and a 2-methylimidazole solution are mixed and fully react, and a mixed solution is obtained; carrying out solid-liquid separation on the mixed solution, and then washing and drying to obtain ZIF-67; dispersing polyacrylonitrile and polystyrene in an organic solvent together, and then adding the ZIF-67 to obtain a spinning solution; performing electrostatic spinning on the spinning solution to obtain a fiber membrane; the fiber membrane is subjected to pre-oxidation treatment and then calcined, a calcined product is cooled and then ground, and the transition metal nitrogen carbon nano composite material Co (at) NC is obtained. The nano composite material prepared by the method can quickly, simply, conveniently and sensitively detect hydroquinone, realizes quantitative analysis of HQ, and solves the problems that the existing HQ detection depends on large-scale instruments and equipment, the pretreatment time is long, the operation is tedious and the like.

The present invention belongs to the technical field of microwave-absorbing materials, and specifically relates to a method for preparing a cobalt / attapulgite / carbon nanocomposite fiber with microwave-absorbing properties. The preparation method comprises the following steps: mixing a magnetic metal salt, a polymer, a solvent, and nano-attapulgite in a specific proportion, reacting under heating conditions and at room temperature to obtain a mixed spinning solution; electrospinning the mixed spinning solution to obtain composite nanofibers; and carbonizing the obtained composite nanofibers to obtain a cobalt / attapulgite / carbon nanocomposite fiber with microwave-absorbing properties. The present invention has the beneficial effect that, due to the adoption of the above-mentioned technical solution, the carbon nanocomposite fiber of the present invention combines excellent properties such as light weight, strong absorption, a wide effective absorption bandwidth, and a low filling ratio. The carbon nanofibers have excellent dielectric properties, electrical conductivity, thermal stability, and low density. Carbon nanofibers are expected to be used to produce ideal microwave-absorbing materials.

The invention relates to the technical field of nano-particle preparation, and discloses preparation and application of a hollow porous yolk shell structure silicon-carbon nano-composite material. According to the hollow porous yolk shell structure silicon-carbon nano-particle provided by the invention, a silicon nano-sphere is used as a core, and a hollow layer between a carbon shell layer and the core is based on a carbon-coated porous channel; the volume change of the silicon nanoparticles in the charging and discharging process is fully released, and the mechanism stability of the electrode material is kept; meanwhile, the hollow structure and the porous structure are beneficial to de-intercalation migration of lithium ions in the silicon nanoparticles, and the rate capability is increased; in addition, the carbon coating layer can avoid direct contact between the silicon nanoparticles and an electrolyte, so that the electronic and ionic conductivity of the material is ensured, and the first coulombic efficiency is improved. When the carbon-silicon composite material prepared by the method is used as a negative electrode, the battery capacity is relatively high, and the rate capability is relatively long.

A method of inhibiting a cancer cell growth includes contacting the cancer cell with a Cu2(OH)3NO3 / CaSiO3@g-C3N4 nanocomposite material containing graphitic carbon nitride (g-C3N4), copper hydroxide nitrate (Cu2(OH)3NO3) and calcium silicate (CaSiO3), achieving an inhibition efficiency on human breast carcinoma (MCF-7) and human hepatocellular carcinoma (HepG-2) cell growth of greater than 95% in an in-vitro cellular viability assay.

A CaB2O4 / Pb3O4 / Mg3B2O6 / C nanocomposite that includes orthorhombic calcium metaborate (CaB2O4), tetragonal lead tetroxide (Pb3O4), magnesium borate (Mg3B2O6), and carbon (C). The CaB2O4 / Pb3O4 / Mg3B2O6 / C nanocomposite includes 55 to 70 atomic percent (at. %) oxygen (O), 5.0 to 12.5 at. % calcium (Ca), 7.5 to 15 at. % magnesium (Mg), 7.5 to 15 at. % lead (Pb), 2.5 to 7.5 at. % boron (B), and 2.5 to 7.5 at. % carbon (C), each based on a total number of atoms in the CaB2O4 / Pb3O4 / Mg3B2O6 / C nanocomposite. The nanocomposite is used in a method of removing organic pollutants and / or heavy metals from water.

The present application relates to a kind of electrochemical detection method and system for capsaicin, detection method includes: providing three electrode system;Configuration electrolyte solution and dissolve capsaicin standard sample or sample to be measured;Electrochemical detection is carried out using three electrode system to obtain oxidation peak current signal;Based on the corresponding relationship between oxidation peak current and capsaicin concentration determines the capsaicin content in sample to be measured.Detection system includes three electrode system, battery module, power module, MCU module, electrochemical detection circuit, signal conditioning circuit and communication module, can realize the rapid, sensitive detection of capsaicin.The present application improves the detection sensitivity by carbon nanocomposite modified carbon cloth electrode, combined with portable hardware circuit design, get rid of the dependence on large instrument, applicable to the on-site rapid detection of capsaicin in food industry, provide scientific, objective technical means for hot degree quantification.

This invention belongs to the technical field of lithium-ion battery anode materials, specifically a method for preparing germanium-carbon nanocomposite materials for lithium-ion batteries using a hydrothermal method. The preparation method includes: adding germanium dioxide to a sodium hydroxide solution and stirring vigorously with a magnetic stirrer until the germanium dioxide is completely dissolved to obtain a clear sodium germanate solution; adding concentrated hydrochloric acid dropwise to the sodium germanate solution to form a white suspension, and then adding carbon nanotubes; placing the mixed solution in a hydrothermal reactor for hydrothermal reaction; repeatedly filtering and washing the material with anhydrous ethanol and ultrapure water; and finally vacuum drying to obtain the germanium-carbon nanocomposite material. This invention uses germanium dioxide and carbon nanotubes as raw materials to generate a nanostructured germanium-carbon composite material through a hydrothermal reaction. It does not use any binders or catalysts, has a simple and low-cost preparation process, and produces a material with stable performance, high energy density, and suitable for long-term storage, thus supporting the commercial application of germanium-based anode materials.

The present invention belongs to the field related to phase change materials, and specifically relates to a high thermal conductivity and high phase change enthalpy carbon nanocomposite phase change microcapsule and its preparation method. The present invention uses flaky graphene oxide as a dispersant to form a water-in-oil Pickering emulsion with graphene oxide as the interface, and adds an initiator to the aqueous phase to polymerize the aniline monomer and the cross-linking monomer in the oil phase at the interface of the Pickering emulsion to form a network polymer layer to fix the capsule thermal conductive particle shell. The microcapsule shell is composed of thermal conductive polymer cross-linked polyaniline and thermal conductive particle graphene oxide. The diameter of the thermal conductive carbon nanoparticles first dispersed in the alkane phase change material is equivalent to the diameter of the capsule, and a thermal conductive path supporting the skeleton structure is formed in the confined space inside the microcapsule, thereby improving the thermal conductivity of the microcapsule. It has the characteristics of high thermal conductivity and high phase change heat storage capacity, and can be applied to renewable energy storage, new energy vehicle thermal management, industrial waste heat utilization, aerospace engineering and other fields.

The invention discloses a method for synthesizing tungsten-doped lithium iron phosphate carbon nano composite fibers by a solvothermal method, and belongs to the technical field of lithium ion battery positive electrode materials. The method comprises the following steps: S1, preparing a polyacrylonitrile spinning solution by taking N, N-dimethylformamide as a solvent, and carrying out electrostatic spinning to obtain a fiber membrane; s2, performing high-temperature calcination on the fiber membrane in the step S1 to prepare a carbon nanofiber material; s3, dissolving an iron source, a lithium source, a phosphorus source and a tungsten source in a solvent, adding the carbon nanofiber material prepared in the step S2, soaking, performing high-temperature solvothermal reaction, cooling to room temperature, cleaning, and drying to obtain a carbon nano composite fiber material; and S4, performing high-temperature calcination on the carbon nano composite fiber material prepared in the step S3 in a nitrogen atmosphere to obtain the tungsten-doped lithium iron phosphate carbon nano composite fiber material. According to the invention, the charge transfer characteristic and conductivity of lithium iron phosphate are improved by doping element tungsten and compounding carbon nanofibers.

The application provides a kind of heteroatom doped honeycomb carbon covalent coupling cobalt / cobalt telluride heterojunction nanocomposite, preparation method and application, with such characteristics, preparation method includes the following steps: step S1, citrate and nitrogen-containing small molecule are dissolved and mixed, through evaporation, carbonization, etching, obtain heteroatom doped honeycomb carbon;Step S2, heteroatom doped honeycomb carbon is dissolved in mixed solvent and stirred evenly, then the above-mentioned solution stirred evenly is added with organic ligand to react, after reaction, metal organic framework / heteroatom doped honeycomb carbon nanocomposite is obtained;Step S3, metal organic framework / heteroatom doped honeycomb carbon nanocomposite is placed into porcelain boat, is transferred to the downstream of tubular furnace, and tellurium powder is placed in the upstream of tubular furnace, calcination is carried out under inert gas atmosphere, and heteroatom doped honeycomb carbon covalent coupling cobalt / cobalt telluride heterojunction nanocomposite is obtained.

To provide a coating solution for a secondary battery negative electrode containing a carbon-based nanocomposite, which is capable of increasing the capacity and energy density of a secondary battery by using a composite coating solution encapsulated with a carbon-based nanocomposite, and a method for manufacturing the same.SOLUTION: The present invention provides a method for manufacturing a coating solution for a secondary battery negative electrode, including the steps of a) preparing a carbon-based nanocomposite, b) preparing a composite dispersion containing carbon nanotubes and a conductive additive, and c) mixing the carbon-based nanocomposite with the composite dispersion to prepare a composite coating solution.SELECTED DRAWING: Figure 1

The present disclosure relates to a noble metal single atom or cluster-porous molybdenum carbide / carbon nanocomposite using dynamic arrangement of noble metal single atoms or clusters, a method for preparing the same, a catalyst for hydrogen evolution reaction or hydrogen oxidation reaction including the same, and an electrode including the catalyst. The noble metal single atom or cluster-porous molybdenum carbide / carbon nanocomposite of the present disclosure, which is prepared by uniformly bonding a noble metal catalyst only on molybdenum carbide in the form of single atoms or clusters in atomic scale through selective dynamic arrangement, may have remarkably improved catalytic activity and kinetic characteristics since the utilization of the noble metal is improved through selective dynamic arrangement of the noble metal catalyst, may have high stability due to strong interaction between the noble metal catalyst and the molybdenum carbide, and may have high tolerance to carbon monoxide.In addition, the use of the noble metal can be decreased and the nanocomposite can be used as a catalyst for electrochemical hydrogen evolution reaction (HER) or hydrogen oxidation reaction (HOR) under acidic and basic conditions because it has superior catalytic activity, high stability and high tolerance to carbon monoxide. Furthermore, it can be prepared at low cost by a simple synthesis method and has good commercial viability.

The invention provides a rare earth flame retardant and a production process thereof. The rare earth flame retardant comprises the following raw materials in parts by weight: 10-20 parts of rare earth nitrate, 10-20 parts of phytic acid, 10-30 parts of a piperazine derivative, 8-15 parts of a carbon nano-composite agent, 10-18 parts of a silicon-magnesium-nitrogen hybrid, 5-12 parts of biomass-based carbon aerogel, 7-13 parts of a boron-nitrogen-phosphorus polymer and 3-7 parts of a metal-organic framework derivative. A cable produced by the rare earth flame retardant does not generate toxic and harmful gas during combustion, the smoke amount is small, under the background that environmental protection laws and regulations tend to be strict, compared with traditional products such as halogen flame retardants, the advantages are obvious, the green development requirement is met, and the higher environmental protection requirement of the market is met.

This invention discloses a composite catalyst, its preparation method, and its application in sludge treatment, belonging to the field of sludge treatment and environmental protection technology. The invention synthesizes an iron-carbon nanocomposite catalyst using ferric nitrate nonahydrate, antibiotic bacterial residue, and melamine as precursors. The resulting catalyst can, on the one hand, activate ammonium persulfate to generate free radicals that disrupt the water-locking structure of the sludge, enhancing its hydrophobicity and thus improving dewatering efficiency. On the other hand, the Fe species in the composite catalyst activates ammonium persulfate to form Fe... 3+ Fe 3+ The hydrolysis generates ferric hydroxide colloids that can adsorb sludge particles, neutralize surface charges, thereby reducing interparticle repulsion, promoting floc aggregation, and enhancing dewatering efficiency. The advanced oxidation process of ammonium persulfate catalyzed by iron-carbon nanocomposite catalysts also achieves the removal of antibiotic resistance genes from sludge.

The application relates to the technical field of nanometer silicon, in particular to a preparation method of nanometer silicon, nanometer silicon dioxide and silicon-carbon nanometer composite material. The nanometer silicon preparation method comprises the following steps: S1, providing an electric arc furnace with a built-in graphite electrode, inputting a high-voltage power supply into the graphite electrode to generate electric arc discharge and form a high-temperature area; S2, providing solid silicon sources and carbon sources, mixing the silicon sources and the carbon sources according to a molar ratio of 2:3 to 3:2 of silicon dioxide and carbon, and then sending the mixture into the high-temperature area, so that silicon and carbon dioxide are generated through a reduction reaction, a chemical equation is SiO2+C->Si+CO2, the generated silicon is gasified into silicon vapor in the high-temperature area; S3, inputting an inert gas into the electric arc furnace, the inert gas sends the silicon vapor and the carbon dioxide gas to a cooling area to perform condensation treatment, so that the silicon vapor is condensed into nanometer silicon particles; and S4, providing a filtering system, filtering nanometer silicon powder from the nanometer silicon particles, and collecting the nanometer silicon powder.

This application relates to the field of carbon nanomaterials technology, and particularly to a high-catalytic-performance carbon nanocomposite material, its preparation method, and its applications. The composite material includes: a nitrogen-doped ordered mesoporous carbon substrate; cobalt nanoparticles generated in situ and loaded onto the surface and pores of the ordered mesoporous carbon substrate; and high-entropy alloy nanoparticles loaded onto the ordered mesoporous carbon substrate and the cobalt nanoparticles. The cobalt nanoparticles serve as nucleation centers, and the cobalt nanoparticles diffuse and alloy with other added metal elements, resulting in the cobalt element in the high-entropy alloy nanoparticles originating from the cobalt nanoparticles themselves. Through a multi-level synergistic design of the nitrogen-doped carbon substrate, cobalt nanoparticles, and high-entropy alloy, the application addresses the problems of poor catalytic performance, low utilization of active sites, and poor structural synergy in traditional carbon-based materials. It also addresses the high cost and low yield of existing materials, making it difficult to simultaneously achieve high catalytic activity and excellent structural and functional properties.

The present application relates to a kind of multi-element rare earth silicate / silicon-oxygen-carbon nanocomposite ceramics and its preparation method.The composition general formula of the nanocomposite ceramics is (Yb a Ho b Er c Lu d Tm e Gd f Tb g Y h La i Sc j )2Si x O 2x+3 / SiOC, wherein a+b+c+d+e+f+g+h+i+j=1, and at least 2 of a, b, c, d, e, f, g, h, i, j are not simultaneously 0, x=1 or 2.The preparation method is to react rare earth metal element complex with silicon-based polymer to obtain single-source precursor;the single-source precursor is obtained by crosslinking and high-temperature heat treatment, or ceramic powder is obtained by crosslinking and pyrolysis of single-source precursor, and ceramic bulk is further obtained by high-temperature sintering.The preparation method of the present application is simple and reliable, short cycle, low cost, and can effectively improve the water-oxygen corrosion resistance of the material.

Disclosed is a catalyst for hydrogen evolution reaction or hydrogen oxidation reaction, which is a catalyst that can be used under alkaline conditions and has significantly improved kinetic characteristics compared to existing commercial platinum catalysts. The present invention provides a catalyst for electrochemical hydrogen reaction under alkaline conditions and a method for preparing the same, and a ruthenium-based catalytic electrode containing the same, which can be used as an electrode for anion exchange membrane-based water electrolysis cell and fuel cell, wherein the catalyst has 2 to 20 ruthenium supported in an aggregate form on the surface of a molybdenum carbide-carbon nanocomposite carrier.

A method of water purification includes mixing contaminated water with a zirconium dioxide (ZrO2) / calcium silicate (CaSiO3) / graphitic carbon nitride (g-C3N4) based nanocomposite material to form a reaction mixture, further exposing the resultant reaction mixture to light, and removing the nanocomposite material to form purified water. The nanocomposite material consists of spherical metal oxide nanoparticles including a ZrO2 phase and a CaSiO3 phase dispersed on a matrix of g-C3N4 nanosheets, where the spherical metal oxide nanoparticles have an average particle diameter in a range from 2-25 nanometer (nm), and the nanocomposite material has a band gap energy in a range from 1.5-4 electron volt (eV).

The invention provides a silicon-carbon nano negative electrode active material and a preparation method and application thereof. The silicon-carbon nano negative electrode active material comprises a silicon core and a conductive inhibition layer coating the surface of the silicon core, the silicon core is a nanometer silicon ball, and the conductive inhibition layer is a carbon layer. The silicon-carbon nano negative electrode active material provided by the invention realizes the effects of remarkably reducing the volume expansion rate of silicon to be within 30%, remarkably improving the battery capacity, battery efficiency, energy density, thermal stability, current retention rate and the like, and can be widely applied to lithium secondary batteries.

The present invention belongs to the field of electrochemical sensor technology, and specifically relates to an electrochemical sensing electrode based on a cubic CoFe-type Prussian blue-doped cobalt-iron-nitrogen carbon nanocomposite. The present invention aims to address the problems of narrow detection range, low sensitivity, and poor stability of sensors currently used to detect L-tyrosine. The electrochemical sensing electrode comprises a glassy carbon electrode (GCE) and a cubic CoFe-type Prussian blue-doped cobalt-iron-nitrogen carbon nanocomposite wrapped around the GCE; the electrochemical sensing electrode has excellent detection performance for L-tyrosine.

A method of absorption includes contacting a copper hydroxide nitrate / calcium silicate / graphite-phase carbon nitride [Cu2(OH)3NO3 / CaSiO3@g-C3N4] nanocomposite catalyst with a solution including one or more pollutants. Further, the method includes absorbing the one or more pollutants on the Cu2(OH)3NO3 / CaSiO3@g-C3N4 nanocomposite catalyst.

An AI-supported, feedback-regulated ultrasonic anchoring system for the self-regulating ultrasonic anchoring of nanoparticles on polymer-carbon nanocomposites, comprising: a reaction chamber designed to hold a mixture of a polymer, a carbon material and nanoparticles; an ultrasound generator integrated into the reaction chamber, configured to expose the mixture to ultrasound irradiation; at least one sensor that is operationally connected to the ultrasound generator and is configured to continuously measure at least one system response parameter in situ during ultrasound irradiation, wherein the system response parameter changes depending on the anchoring of the nanoparticles on the polymer-carbon framework, and wherein the sensor is further configured to transmit the measured data of the system response parameter in real time; a control unit configured to receive and evaluate the system response parameter measured by the sensor, the control unit further being configured to automatically terminate or modulate the ultrasonic irradiation upon detection of the stabilized or saturated state; and a feedback control module operationally connected to the control unit, configured to detect when the system response parameter reaches a stabilized or saturated state within a predefined tolerance range, whereby the duration of the ultrasonic irradiation is determined exclusively by the measured system response parameter and not by a predetermined sonication time.

This invention discloses a highly stable Y₂Co with tunable electromagnetic wave absorption performance. 17 @Nitrogen-doped graphite carbon (NGC) nanocomposite soft magnetic materials and their preparation methods. A combination of co-precipitation, dopamine self-polymerization, and controlled heat treatment processes was employed to first completely coat graphite carbon (C) onto the surface of CoO-Co-Y₂O₃-containing composite particles to form a CoO-Co-Y₂O₃ / C core-shell structured composite precursor. Then, a series of highly stable Y₂Co nanocomposite materials with tunable electromagnetic wave absorption properties were prepared by co-reduction of the precursor using a controlled calcium reduction method. 17 @NGC nanocomposite electromagnetic wave absorbing material, in which dense NGC with a nanometer thickness is completely and uniformly coated with high-purity Y2Co by a surface modification layer. 17 The surface of nanoparticles greatly enhances Y2Co 17 Due to its antioxidant properties and structural stability, this phase is widely applicable as an electromagnetic wave absorbing material, suitable for numerous electromagnetic compatibility and protection technologies. This invention offers advantages such as abundant raw material sources, simple preparation process, and low production cost.

The invention relates to the technical field of nano silicon, in particular to a preparation method of nano silicon, nano silicon oxide and a silicon-carbon nano composite material. The preparation method of the nano silicon comprises the following steps: S1, providing an electric arc furnace with a built-in graphite electrode, and introducing a high-voltage power supply into the graphite electrode to generate arc discharge so as to form a high-temperature area; s2, providing a solid silicon source and a solid carbon source, mixing silicon dioxide and carbon according to a molar ratio of 2: 3-3: 2, feeding the mixture into a high-temperature area, carrying out a reduction reaction to generate silicon and carbon dioxide according to a chemical equation of SiO2 + C-Si + CO2, and gasifying the generated silicon in the high-temperature area to generate silicon steam; s3, inert gas is introduced into the electric arc furnace, the inert gas conveys the silicon steam and the carbon dioxide gas to a cooling area for condensation treatment, and the silicon steam is condensed to generate nanoscale silicon particles; and S4, providing a filtering system, filtering out nanometer silicon powder in the nanometer silicon particles, and collecting the nanometer silicon powder.

The invention discloses a pesticide detection device and method and a preparation method of a detection material of the pesticide detection device, the pesticide detection device comprises a detection main body and a detachable detection cover, the detection cover is provided with a screen-printed electrode, and the screen-printed electrode is connected with a screen-printed electrode communicating vessel; a liquid outlet is further formed in the electrochemical detection cavity; a detection tube is arranged at the bottom of the detection main body; a micro peristaltic pump is arranged in the detection main body; the outlet side of the micro peristaltic pump is communicated with the electrochemical detection cavity through a one-way valve, and the inlet side of the micro peristaltic pump is connected with the detection pipe. The method further comprises detection method steps of S1-S4 and detection material preparation steps of A1-A2. The detection material prepared by the invention is a carbon nano composite material based on a metal organic framework (MOF), and the composite material can perform specific recognition and selective enrichment on organophosphorus pesticides. The portable pesticide detection device is matched with a detection material and a detection method, is convenient to carry and apply, and can detect pesticide residues on site in real time.

A device for removing formaldehyde using manganese oxide with a synergistic effect of capacitance and triboelectric enhancement belongs to the field of formaldehyde removal technology. Two parallel copper meshes are positioned with a gap between them. Between the upper and lower copper meshes, from top to bottom, are a nylon air filter and a manganese oxide / carbon nanoparticle composite material. The nylon air filter is tightly fitted to the upper copper mesh, and the manganese oxide / carbon nanoparticle composite material is tightly fitted to the lower copper mesh. The two copper meshes are sealed with an insulating frame, forming an integrated formaldehyde purification device. During operation, a power source is connected between the upper and lower copper meshes. This allows the surface of the manganese oxide catalyst to become an electron-rich region, promoting the removal of active substances (0... * This process accelerates the decomposition of intermediate products, thereby improving catalyst efficiency and lifespan.

A system for the synthesis and production of a cermolybdate graphitic carbon nitride (Ce2 (Mo4)3@g-C3N4) nanocomposite for the detection of uric acid in sweat, comprising: a) a cermolybdate synthesis unit for the production of Ce2 (Mo4)3 nanoparticles by hydrothermal treatment, wherein the cermolybdate synthesis unit comprises: • a reaction vessel containing cerium nitrate and ammonium molybdate in a molar ratio of 2:3 in a solvent mixture of ethanol and deionized water, • a surfactant additive system configured to add cetyltrimethylammonium bromide (CTAB) for stabilization, and • a hydrothermal reactor configured to heat the mixture to 180°C for 24 hours; b) a plant for the synthesis of graphitic carbon nitride, configured to produce g-C3N4 by thermal polymerization of melamine under inert atmospheric conditions at temperatures of 400 °C to 600 °C; and c) a nanocomposite formation unit configured to combine Ce2(Mo4)3 and g-C3N4 to form the Ce2(Mo4)3@g-C3N4 nanocomposite, wherein the nanocomposite formation unit comprises: • an ultrasound system configured to disperse the components at the molecular level and allow them to interact with each other, and • a drying system for removing residual solvents.

The invention discloses a carbon nano composite structure porous flexible resistance sensor array based on a carbon black structure and a preparation method thereof. Constructing a porous structure of the sensor by adopting a preparation process combining a sacrificial template method and a main agent blending method and taking fine salt particles as a sacrificial template; and the flexible substrate is made of platinum catalytic silica gel, so that the requirement on flexibility and elasticity of the sensor in practical application can be better met. According to the method, the traditional preparation thought is continued, the matrix main agent and the conductive component are directly blended, and the gallium-based liquid metal is introduced as a conductive filling phase, so that the conductivity of a conductive path is effectively improved. And the fine salt template only needs to be dissolved and removed after the device is cut, so that the process feasibility is higher, and meanwhile, the problem that the flexible substrate is easy to generate fatigue failure due to the adhesion of the conductive filler is obviously improved.