263 results about "Octahedron" patented technology

The invention discloses a solid electrolyte with high ionic conductivity, which comprises the following components: a matrix material: a halide super ion conductor with a LiMXCl4 structure, M being selected from at least one of Ta, Nb and Hf, X being O or F, a chemical general formula being LiM1-aX1-6Cl4, a being equal to 0.1-0.3, and an electrochemical window being regulated to 2.5-4.0 V through fluorine-chlorine mixed anion substitution; the second phase material is a core-shell structure compound, the core is Li3TiCl6, and the shell is a Li3PS4 interface layer; and the sintering aid is a compound of Li3BO3 and LiF. Through fluorine-chlorine mixed anion regulation and control and MO2Cl4 octahedron synergistic tilting mechanism, the ionic conductivity of the solid electrolyte is remarkably improved, the lithium ion conductivity at room temperature is greater than or equal to 10mS / cm, the activation energy is less than or equal to 0.2 eV and is superior to that of the traditional halide electrolyte, and meanwhile, the free volume between chains is optimized through Zr < 4 + > / Sn < 2 + > gradient doping, so that the performance of the solid electrolyte is improved. The core-shell structure compound and the silane coupling agent are combined for modification, so that the electrochemical window is effectively widened to 2.5-4.0 V, the interface side reaction is inhibited, and the composite material is adaptive to a high-voltage positive electrode material.

The invention discloses a preparation method and application of octahedral cuprous oxide containing defects, and belongs to the technical field of material preparation. In order to solve the problems that in existing cuprous oxide preparation, a defect structure is difficult to accurately regulate and control, and the crystal form uniformity is insufficient, the method comprises the steps that a copper source solution, a glucose solution, a sodium citrate solution and an ammonium fluoride solution with specific concentrations are mixed according to the volume ratio, the pH is adjusted to 10.5-11, then a hydrothermal reaction is conducted, and a target product is obtained through centrifugation, filtration, washing and drying. The method comprises the following specific steps: mixing solutions, reacting in a high-pressure reaction kettle at 140-165 DEG C for 4-6 hours, and realizing octahedral crystal form construction and defect regulation and control by controlling the raw material ratio and reaction conditions. The preparation method is simple in process and high in controllability, and the prepared octahedral cuprous oxide containing defects can serve as a catalyst to be applied to the fields of catalytic decomposition of ammonium perchlorate and the like and has good industrial application prospects.

The invention discloses an octahedral diamond synthesis method which comprises the following steps: preparing raw materials: selecting high-purity graphite powder and a powder catalyst, adding AlCl3 and KBH4 into the graphite powder to obtain graphite mixed powder, mixing the graphite mixed powder and the powder catalyst according to a weight ratio of (2-5): (5-8) to obtain mixed powder, adding a dispersing agent into the mixed powder, and uniformly mixing to obtain the raw materials, wherein the ratio of the dispersing agent to the mixed powder is 0.5: 6; the raw materials are put into a granulator to be granulated, and raw stone particles within 100 meshes are obtained; adding the raw stone particles into a mold, and pressing by adopting a four-column press to obtain a graphite core column; according to the method, in the diamond synthesis stage, the method of pressure subsection slow rising and power subsection slow rising is adopted, a good environment is provided for production of the octahedral diamond, the quality of the octahedral diamond is improved, the crystal form consistency is high, meanwhile, a high-position repeated mode is adopted in the pressure stage, and the performance of the diamond is improved.

The present invention discloses an abnormal thermal quenching near-infrared fluorescent ceramic and its preparation method and application. The chemical formula of the fluorescent ceramic is: (Lu 0.34+z Y 0.66‑y‑z Sc y )3(Sc 0.85‑x Al 0.15 Cr x )2Al3O 12 , 0.0005≤ x ≤0.02, x : y =1:(5‑10), x : z =1:(10‑20). y Sc 3+ The mole percentage of dodecahedral sites occupied, x Cr ions occupy the octahedron Sc 3+ The molar percentage of the lattice site. z is the Lu in the dodecahedron 3+ The molar percentage of the metering control. The ceramic green body is formed and sintered by using the acrylamide gel injection molding method combined with high temperature solid phase reaction. The luminescent center ion in the ceramic of the present invention presents a +3 valence state under the influence of the matrix microenvironment regulator (calcium carbonate, magnesium oxide and zirconium oxide, silicon dioxide, hafnium dioxide). The excitation peak of the ceramic is between 430nm-460nm, the half-height width is between 90nm-130nm, and the half-height width is between 150nm-160nm. o The luminous intensity at 200°C is 105%-165% of the room temperature. o The luminescence intensity at 400°C is 130%-200% of that at room temperature. When excited by a 430-460 nm excitation source, the emission wavelength ranges from 650 nm to 900 nm. The ceramic preparation process is simple, and the resulting anomalous thermally quenched near-infrared fluorescent ceramic is suitable for high-power near-infrared imaging and detection.

The invention relates to the technical field of robots, and particularly discloses a bionic humanoid mechanical arm which comprises a shoulder joint module, a big arm module, an elbow joint module, a small arm module and a wrist joint module which are connected in sequence. The wrist joint module realizes two-degree-of-freedom flexible movement through a regular octahedron tensegrity structure, and the rotation centers of the wrist joint module naturally intersect at one point and are connected with the rolling shaft in series to form three-degree-of-freedom concurrent rotation; the length-adjustable supporting rod in the flexible structure changes the joint rigidity in real time and dynamically adapts to the load change so as to enhance the man-machine interaction safety; an elbow joint adopts a virtual pitch circle rolling mechanism, all joint-crossing driving rope paths are forced to remain unchanged, and multi-joint motion coupling is eliminated from the mechanical intrinsic level; a driving motor and a rope wheel system are arranged on the large arm module in a centralized mode, the rope tensioning state is continuously optimized in cooperation with a ratchet wheel type self-locking tension mechanism, and the tail end inertia is reduced under the condition that an elbow and wrist joint motor is completely removed.

The application provides a Pd6(SR) 12 cluster with an octahedral structure, the Pd6(SR) 12 cluster is a cyclohexanethiol ligand-protected palladium cluster, contains 6 Pd atoms, 12 cyclohexanethiol ligands, the 6 Pd atoms form an octahedral core, and the sulfur atoms in the cyclohexanethiol ligands are connected with the Pd atoms peripherally, and each sulfur atom is connected with two Pd atoms. The application further discloses a preparation method of the Pd6(SR) 12 cluster, and the application fills the technical vacancy of synthesizing Pd clusters with structures other than a ring structure, and has high popularization value.

The jumping type V-groove machine and the innovative knife line structure are adopted, the automatic box gluing machine with the automatic deviation rectifying function is combined with innovative V-grooves with two angles, so that folded edges are not arched, do not deform and do not demould when the automatic box gluing machine is used for gluing boxes, the box gluing edges can be aligned with the folded lines, and the production efficiency is improved. Therefore, automatic box sticking of a six-face box, an eight-face box, a ten-face box, a twelve-face box or a more polyhedral box and a gift box of a top and bottom cover structure can be smoothly achieved, folding transportation can be achieved, and high-grade perfect V-groove boxes can be manufactured in a low-cost and large-batch mode.

The invention discloses a bimetallic rare earth MOF (Metal Organic Framework) catalyst and an application method of the bimetallic rare earth MOF catalyst in preparation of hydrogen peroxide. Ce < 3 + > is directionally doped to an MIL-100 (Mn) skeleton through a modification method to form an octahedral microporous crystal (Mn1Ce2) MOF catalyst with a certain Mn / Ce molar ratio. When the molar ratio of Mn to Ce is 1: 2, the BET specific surface area of the (Mn1Ce2) MOF catalyst is 560 m < 2 > / g. The catalyst is in the presence of visible light ([lambda] gt; under the ozone atmosphere (420 nm) and 700 ppb, the yield reaches 1602 [mu] mol.g <-1 >. H <-1 > (pure water system), the activity is kept at 87.1% after five times of circulation, and the problems that a traditional photocatalytic system is low in oxygen mass transfer efficiency and needs a sacrificial agent are solved.

The invention provides a transition metal Fe doped vanadyl phosphate material and a preparation method thereof. Fe partially replaces V metal cations in crystal lattices, a local coordination environment and an electronic structure are adjusted, a stable Fe-O-P-O-V delocalized electronic structure is formed, and Zn < 2 + > intercalation / deintercalation reversibility and crystal lattice stability are optimized. Compared with the traditional VOPO4, the Fe-doped vanadyl phosphate material has the advantages that the V-O bond strength is obviously enhanced, the interplanar spacing is reduced, the dissolution of PO4 < 3 > and the fracture of a lattice structure are inhibited, the symmetry of a VO6 octahedron is obviously improved, and excellent circulation (the capacity retention ratio reaches 80% after 2000 times of circulation) and rate capability are shown. The preparation process is simple, low in cost, mild in reaction condition, high in yield and low in equipment dependence; the obtained positive electrode material is improved in capacity, enhanced in structural stability and improved in rate capability, and an innovative solution is provided for developing a high-stability aqueous ion battery positive electrode material.

To provide a thermal conductor capable of forming a heat flow path between adjacent diamonds.SOLUTION: A thermal conductor 100 according to the present invention includes a diamond-containing metal layer 20 that includes a plurality of diamonds 40 arranged in one layer and a metal 42 that fixes the diamonds 40. The diamonds 40 are polyhedrons of octahedrons or higher, and adjacent diamonds 40 are in face-to-face contact with each other, and the diamonds 40 are arranged such that an end 40B of each diamond 40 on one face 20B side of the diamond-containing metal layer 20 forms an apex or a ridgeline.SELECTED DRAWING: Figure 1

This invention discloses a CuS nanostructure material, its preparation method, and its applications. The CuS nanostructure material uses Cu-MOF octahedrons as a precursor, which are hydrothermally sulfided to obtain an octahedral hierarchical structure assembled from CuS nanorods. The CuS nanorods have a size of 50-100 nm, and the edge length of the precursor Cu-MOF octahedrons is 0.8-1 μm. This invention utilizes a one-step hydrothermal method to prepare a CuS nanostructure material through Cu-MOF sulfidation, resulting in a zinc-ion battery anode material with high conversion efficiency and excellent electrochemical performance.

This invention belongs to the field of superhard material synthesis technology, specifically disclosing a high-temperature, high-pressure preparation method for nano-polycrystalline diamond with synergistic mechanical and thermal properties. The method includes the following steps: precursor preparation: pre-pressing the precursor in a cemented carbide mold; octahedral assembly; wrapping the pre-pressed sample with platinum foil and placing it at the center of the octahedron; high-temperature, high-pressure sintering; stopping heating after heat preservation, allowing it to cool naturally to 23-25°C, then depressurizing, removing the octahedral assembly and the platinum foil wrapping, thus obtaining the synergistically enhanced nano-polycrystalline diamond. This invention employs the above-mentioned high-temperature, high-pressure preparation method for nano-polycrystalline diamond with synergistic mechanical and thermal properties. By combining nanodiamond powder with graphene, the sample assembly is optimized, and nano-polycrystalline diamond samples with excellent mechanical properties and significantly improved thermal conductivity are synthesized under relatively mild temperature and pressure conditions.

The invention discloses a face-to-face binuclear cobalt complex and a preparation method and application thereof, and belongs to the technical field of organic synthesis and catalysis, the face-to-face binuclear cobalt complex is a crystal material A or a crystal material B, the chemical formula of the crystal material A is C68H68Co2N4O6, and the chemical formula of the crystal material B is C54H76Co2N6O6; the face-to-face dual-core cobalt complex comprises a crystal material A and a crystal material B. The center distance between two metal cobalt of the crystal material A is 4.821, a ligand is connected with the two metal centers in a bridging mode to form a large cavity, the dual-metal cobalt complex is formed, the two metal cobalt are subjected to synergistic activation at + 2 valence, and the dual-metal cobalt complex is formed. And hydroxyl radicals can be generated through homolysis. Wherein the ligand of the crystal material B is connected with two metal cobalt centers in a carbon chain bridging mode, the coordination environment of each metal cobalt center is in an octahedral configuration, the distance between the two metal centers is 5.720, the two metal centers are in + 3 valence at the same time, and the binuclear cobalt complex is formed.

A method of making a synthetic hectorite-type mineral is described, along with its resulting physical and rheological properties. The synthetic hectorite-type mineral is a 2:1 phyllosilicate essentially free of aluminum, and having a trioctahedral structure with Mg2+ and Li+ occupying octahedral sites. As a hydrogel, the synthetic hectorite-type mineral has a swell index of greater than 55 mL, and a yield point of greater than 290 Pa. The method of making uses a MgO / MgCO3 buffer system, with heating for about 2 hours at temperatures of no higher than 300° C. and pressures of no higher than 600 psi.

The invention relates to the technical field of boiler equipment, in particular to a boiler air heater based on an octahedral array structure. According to the technical scheme, the boiler air heater based on the octahedral array structure comprises heat exchange pipeline units, the boiler air heater is formed by arranging the multiple heat exchange pipeline units in parallel in the steam flowing direction, each heat exchange pipeline unit comprises a regular octahedral pipeline and a cylindrical pipe, and multiple sets of regular octahedral pipelines are arranged on one side of each cylindrical pipe; the heat exchange unit formed by connecting a plurality of regular octahedron pipelines in series is adopted, each regular octahedron is of a structure with a complex space flow channel formed by connecting a plurality of edge pipes, when steam flows through each octahedron unit, the steam is subjected to multiple times of flow division and re-convergence processes, and therefore the heat transfer coefficient of the steam in the pipes is effectively increased, and the heat exchange efficiency of the steam is improved. And meanwhile, the non-straight structure on the outer surface of the octahedral pipeline also enhances the flow disturbance of the air side, the convection heat exchange efficiency outside the pipeline is improved, and the heat exchange capacity and the heat energy utilization efficiency of the air heater are remarkably improved.

The application provides an ultramicroporous zinc-based MOF material, a preparation method thereof and application thereof in ammonia adsorption, and belongs to the technical field of crystalline materials. The material is an ultramicroporous zinc-based metal organic framework material with a three-dimensional periodic network structure, which is formed by coordination self-assembly of Zn 2+ ions, squarate ligands and triazoles ligands, wherein Zn 2+ ions exist in two coordination modes of hexa-coordinated octahedron and tetra-coordinated tetrahedron; the molecular formula of the material is [Zn2(C4O4)(C2H2N3)2], wherein C4O4 2‑ is a squarate ligand, and C2H2N3 ‑ is a triazole ligand. The application also provides application of the ultramicroporous zinc-based MOF material in ammonia adsorption. The MOF material has good stability, can maintain the integrity of the framework structure after being soaked in water for 7 days, and has good ammonia adsorption performance.

The invention discloses a cobalt-doped ruthenium dioxide nanoparticle material as well as a preparation method and application thereof, and relates to a ruthenium dioxide nanoparticle material as well as a preparation method and application thereof. The nano-particle cluster is formed by irregularly distributing nano-particles; the nanoparticles have a single-phase crystal structure, and the spacing distribution of {110} crystal faces is 0.315 nm; the material is composed of three elements of Co, Ru and O, wherein Co is doped into RuO2 to form Co < 0.3 > Ru0. 7O2 nanoparticles; the material is of an octahedral structure, and Ru sites are replaced by Co doping; the chemical valence state of Ru on the surface of the material is a mixed valence state of + 3 and + 4; charge transfer occurs among three ions of Co, Ru and O, so that Ru is in a lower oxidation state. The cobalt-doped ruthenium dioxide nanoparticle material is used for electrolyzing water to produce hydrogen, and shows 2500-hour long-term stability under the current density of 10 mAcm <-2 >.

Provided is a gas diffusion layer for a fuel cell. The gas diffusion layer comprises a carbon substrate and a microporous layer formed on the carbon substrate. The microporous layer contains carbon particles and a water-repellent resin that binds the carbon particles. The microporous layer contains a radical scavenger including nano-sized cerium oxide particles that have a controlled particle shape, which is rectangular parallelepiped, a cube, an octahedron, or a polyhedron having nine or more surfaces, and are doped with at least one non-metallic element selected from among nitrogen, phosphorus, sulfur, chlorine, and fluorine and / or at least one metal element selected from among La, Pr, Sm, Eu, Gd, Y, Zr, and Nb. The gas diffusion layer can effectively improve the durability of a fuel cell manufactured using same.

This invention discloses an antimony-doped wide-bandgap zirconium chloride powder-emitting crystal material, its preparation method, and its application. The chemical formula of the powder-emitting crystal material is (C9H). 15 N3)2ZrCl8:Sb 3+ It belongs to the monoclinic crystal system, with space group P21 / c; in the described photoluminescent crystal material, each zirconium atom is coordinated with 8 chlorine atoms to form [ZrCl8]. 4‑ Polyhedral structure, organic cation (C9H) 15 N3) + It is linked to inorganic anions via C–N–H···Cl bonds, forming discrete [ZrCl8]. 4‑ The octahedral structure is replaced by organic cations (C9H). 15 N3) + Complete isolation is achieved, forming a zero-dimensional ionic crystal structure. This invention overcomes the problems of single luminescent center, limited emission wavelength, and insufficient luminescence intensity in undoped zirconium-based chlorides by introducing antimony. Antimony, as an effective luminescent center, can promote the radiative recombination process and achieve high-brightness broadband emission.

The invention relates to the technical field of organic and inorganic, in particular to a single-crystal 1, 4-diaminobutane cadmium halide crystal as well as preparation and application of the single-crystal 1, 4-diaminobutane cadmium halide crystal. The invention provides a single crystal 1, 4-diaminobutane cadmium halide crystal. The chemical formula of the single crystal 1, 4-diaminobutane cadmium halide crystal is C4N2H14CdX4, x is one of Cl, Br or I; in the single-crystal 1, 4-diaminobutane cadmium halide crystal, a central Cd < 2 + > cation is coordinated with four independent X-anions and two adjacent bridging X-anions to form a CdX6 octahedron, and a CdX6 octahedron layer and a (C4N2H14) < 2 + > cation layer are infinitely staggered to form a two-dimensional layered structure or a one-dimensional branched chain structure; the crystal has stable properties and unique single crystal spectrum information, and has wide application prospects in the fields of photoelectric detectors, data storage, photovoltaics and the like.

The present invention relates to a method for improving the performance of the cathode material of a sodium-ion battery by using the Jahn-Teller effect. The molecular formula of the cathode material is Na a Mn x Ni y Cu z O2, where 0.85 ≤ a ≤ 1, 0.45 ≤ x ≤ 0.55, 0.4 ≤ y ≤ 0.5, and 0.05 ≤ z ≤ 0.15. By controlling the timing of doping with the Cu element, adjusting its diffusion mechanism in the transition metal layer TMO6 octahedron during high-temperature sintering, changing the microstructure of the Cu-O octahedron, and activating the Cu 2+ Jahn-Teller distortion in the transition metal layer, promoting the rapid migration of Na ions in the transition metal layer, enabling the O3-type sodium-ion layered cathode material to exhibit a discharge capacity of 67.2 mAh / g at a charge-discharge rate of 10C (1C = 120 mA / g) in the 2-4V potential range, greatly improving the fast charge-discharge ability of ordinary O3 materials, and effectively improving the cycle stability of the cathode.

The invention provides a heteroatom-doped vacancy-rich V2O3-x composite electrode material supported by a carbon skeleton and a preparation method and application thereof, and belongs to the technical field of composite electrode materials. According to the preparation method, in-situ growth is carried out on a V2O3 octahedron supported by a carbon skeleton by utilizing high-temperature thermal reduction so as to strengthen interface charge transfer, and meanwhile, volume deformation in a circulation process is relieved by virtue of a stable carbon coating layer, so that the heteroatom-doped vacancy-rich V2O3-x composite electrode material supported by the carbon skeleton is prepared; the composite electrode material takes porous carbon as a skeleton, and heteroatom-doped V2O3 nanoparticles are uniformly embedded in the carbon skeleton; the composite electrode material has rich vacancy defects and a stable interlayer structure and can be used for preparing the aqueous zinc ion soft package battery, and the aqueous zinc ion soft package battery shows high specific capacity, excellent cycle stability and good rate capability and has good practicability.

The invention provides an electrochemical mechanical polishing composition, application and a method, and relates to the technical field of polishing processing. The electrochemical mechanical polishing composition comprises a liquid carrier, a pH (Potential of Hydrogen) regulator, an organic electrolyte and chamfered octahedral cerium oxide abrasive particles, and the chamfered octahedral cerium oxide abrasive particles are dispersed in the liquid carrier, the ratio of the cumulative volume of abrasive grains having at least two times the average particle diameter as measured by a scanning electron microscope among the chamfered octahedral cerium oxide abrasive grains to the cumulative volume of abrasive grains having at least two times the average particle diameter as measured by the scanning electron microscope among the chamfered octahedral cerium oxide abrasive grains is at least 0.1.

Disclosed is a method for designing the composition of a layered structure of Li3YCl6 compound exhibiting enhanced ionic conductivity, which provides a method for designing the composition of a lithium yttrium halide solid electrolyte with a hexagonal close-packed structure, the method being executed by a processor, the method including: calculating possible diffusion paths for lithium ions to migrate an adjacent octahedral site in the a-b plane in each consecutive layer constituting a unit cell with a hexagonal close-packed structure; calculating the activation barrier energy for lithium ion diffusion for each of the calculated diffusion paths; and determining the occupancy of yttrium within the unit cell to form a percolation state where diffusion paths with a low calculated activation barrier energy are connected within the unit cell.

The invention relates to the technical field of chemical separation, in particular to a metal organic framework adsorbent and a preparation method and application thereof. The chemical formula of the adsorbent is Cu3 (mtrz) 2 (ox) 2, a coordination structure of a hexa-coordinated octahedron and a tetracoordinated quadrangle is formed by Cu (II) and an organic ligand, and a 3D framework with high-density open metal sites is constructed. The adsorbent is synthesized by stirring at normal temperature by taking copper acetate, 3-methyl-1H-1, 2, 4-triazole and soluble oxalate as raw materials and water as a solvent, and large-scale synthesis and granulation can be realized. The adsorbent has high adsorption capacity and selectivity to CO2 / N2 and CO2 / CH4 systems by virtue of high-density open metal sites, ultramicro channels and a Lewis acid environment, can be used for adsorption separation of a fixed bed and the like, is low in regeneration energy consumption, and is suitable for separation of CO2 in flue gas.

A method for preparing high-dielectric, moderately saturated magnetized yttrium iron garnet ferrite belongs to the field of microwave and magnetic materials technology. This invention utilizes a method that substitutes the dodecahedral Y-site in the garnet structure. 3+ Octahedral and tetrahedral Fe 3+ The formulation and secondary granulation process result in a material with moderate saturation magnetization (1050G < 4πMs < 1250G), suitable for low-frequency microwave ferrite devices. It also possesses high dielectric constant ε' > 20, low ferromagnetic resonance linewidth ΔH ≤ 24Oe, and low dielectric loss tanδ. ε <1×10 ‑4 This can reduce the design size of the device, which is beneficial for the miniaturization and weight reduction of microwave ferrite devices.

The invention discloses a geotechnical material cutting and crushing simulation method and device considering coordination number and particle shape. The method comprises the following steps: acquiring particle space data, carrying out geometric simplification, and constructing an irregular particle shape library containing point-surface information; generating a DEM sample for numerical simulation based on the irregular particle shape library; determining a crushing triggering threshold value; determining octahedral shear stress q of the particles, and triggering particle crushing when q is greater than a crushing triggering threshold value; the particle cutting times are distributed with the coordination number as a dominant variable; a main fracture surface is determined, and crushing operation is executed; the orientation of the main fracture surface is consistent with the maximum main stress direction, and the main fracture surface passes through the maximum contact force point; and determining a secondary fracture surface, and executing secondary or multiple crushing operations according to the number of times of cutting until simulation is completed. According to the method, the calculation overhead is remarkably reduced while the irregular geometry and the controllable crushing degree are kept, and the influence of the shape effect and the scale effect on the strength and particle size distribution evolution can be reflected.

The invention relates to the technical field of high-flux photonics materials, in particular to a Sb < 3 + >-doped Cs3LnCl6 zero-dimensional nanocrystal as well as a preparation method and application thereof. The chemical formula of the Sb < 3 + >-doped Cs3LnCl6 zero-dimensional nanocrystal is Cs3Ln1-xSbxCl6, x ranges from 0.005 to 0.1, Ln is selected from at least one of Y, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and the Sb < 3 + >-doped Cs3LnCl6 zero-dimensional nanocrystal has the chemical formula of Cs3Ln1-xSbxCl6. The material has a zero-dimensional structure of a C2 / c space group, and is composed of an isolated [BCl6] 3-octahedron and a gap Cs < + >, the zero-dimensional nanocrystal has a deep trap state of 0.6 eV to 1.2 eV. Through zero-dimensional [BCl6] 3-octahedron lattice rigidity and deep trap carrier recovery, high-temperature anti-thermal quenching can be realized without external coating, and the problem of external passivation-performance side effects of the existing material is solved.

The invention discloses an intramolecular entropy driving amplifier based on DNA octahedron assembly as well as a preparation method and application thereof. The preparation method comprises the following steps: annealing three DNA single chains P1, P2 and P3 to form a component C1, annealing three DNA single chains P4, P5 and P6 to form a component C2, and annealing four DNA single chains P7, P8, P9 and P10 to form a component C3; and mixing the component C1, the component C2 and the component C3 in a reaction buffer solution, and assembling into a DNA octahedron, so as to obtain the DNA octahedron-based intramolecular entropy driving amplifier. The intramolecular entropy driving amplifier can be used for realizing rapid imaging of various lncRNAs. The DNA octahedral structure not only provides abundant sites for the detection of a plurality of lncRNAs, but also integrates all functional modules into a single molecular scaffold. The integration effectively accelerates the reaction kinetics due to the space limiting effect of the DNA octahedron.