74 results about "Cerium doping" patented technology

According to the high-thermal-conductivity flame-retardant copper-clad laminate and the preparation method thereof, the thermal conductivity and the limit oxygen index of a copper-clad plate can be effectively improved, so that the high-thermal-conductivity flame-retardant property of the copper-clad plate is effectively improved; modified aluminum nitride and phosphoric acid modified aluminum nitride powder in the heat-conducting filler can keep good hydrolysis resistance in the ball milling process; polyvinyl butyral and polyethylene glycol are compounded as a binder, so that the modified aluminum nitride has good sphericity and surface smoothness, and the spherical aluminum nitride prepared by water-based spray granulation is suitable for being used as a heat-conducting filler of a thermal interface material; modified silicon dioxide in the heat-conducting filler adopts cerium-doped hollow mesoporous silicon dioxide nanospheres coated with polydopamine, and a corrosion inhibitor MBT (2-mercaptobenzothiazole) is loaded by the cerium-doped hollow mesoporous silicon dioxide nanospheres; controllable release of the corrosion inhibitor MBT and rare earth cerium ions is achieved, the process of corroding the cathode and the anode can be inhibited at the same time, and the corrosion resistance and the corrosion self-repairing performance of the copper-clad plate can be effectively improved.

The invention belongs to the technical field of air power supplies, and relates to modification treatment of an oxide, in particular to a cerium oxide doped transition metal oxide and a preparation method thereof, an air cathode and an air power supply. The preparation method comprises the following steps: dissolving cerium salt, cobalt salt and manganese salt in water, uniformly mixing to obtain a mixed solution, adjusting the pH value of the mixed solution to 9-11, and carrying out a sedimentation reaction to obtain a sediment; and drying the precipitate, and calcining in an air atmosphere at 300 + / -10 DEG C for 2-4 hours to obtain the cerium oxide doped transition metal oxide. The cerium oxide doped transition metal oxide is cerium doped cobalt manganese oxide with a spinel structure, and the doping amount of cerium is 20 + / -1wt%. The cerium oxide doped transition metal oxide provided by the invention is applied to an air cathode as a catalyst, and has good stability and high catalytic activity. The performance of an air power supply containing the oxide is remarkably improved. The method for preparing the oxide provided by the invention is simple and easy to operate, and is suitable for large-scale production.

The invention relates to the technical field of photocatalysis, in particular to a terbium and cerium doped MIL-177 confinement multi-metal cluster photocatalyst, which is prepared from terbium / cerium double metal elements, an MIL-177 metal organic framework, a multi-tungsten phosphomolybdate nanocluster and L-cysteine, according to the photocatalyst, an MIL-177 metal organic framework modified by terbium / cerium double metal elements is used as a substrate, a multi-tungsten phosphomolybdate nanocluster is used as an active center, microwave hydrothermal synthesis and solvothermal synthesis are performed, and L-cysteine surface modification is performed. Double metal elements terbium and cerium doped aluminum-based metal organic frameworks are combined with multi-tungsten phosphomolybdate nanoclusters, and surface modification is performed through L-cysteine, so that the visible light absorption range is widened, efficient separation of photo-generated charges is realized, catalytic active sites are increased, and the efficiency and selectivity of photocatalytic reduction of carbon dioxide are improved.

The invention belongs to the technical field of photoelectric catalytic materials, and particularly relates to a cerium-doped titanium dioxide nanorod array material as well as a preparation method and application thereof. Research finds that the cerium element has a large ionic radius and multivalent characteristics, and can effectively improve the photoelectrochemical properties of TiO2. The cerium doping not only can adjust the lattice structure and the electronic structure of TiO2 to expand the lattice structure, but also can introduce a new electronic energy level, adjust the electronic energy level and inhibit the compounding of photo-induced electrons and holes, so that the photocurrent density and the photoelectric conversion efficiency are remarkably improved, and the photoelectrocatalysis efficiency of titanium dioxide is improved. As a photoelectrocatalysis material, the cerium-doped titanium dioxide nanorod array material provided by the invention can be applied to the fields of photocatalysis and clean energy production, in particular to the application in hydrogen production by photoelectrolysis of water.

The invention relates to the technical field of power cables, and provides a corrosion-resistant power cable protection tube and a preparation method thereof. The corrosion-resistant power cable protection tube comprises the following components in parts by weight: 60-70 parts of polypropylene resin, 5-10 parts of a flame retardant, 10-15 parts of an inorganic filler, 2-4 parts of a lubricant, 1-2 parts of an anti-aging agent, 1-2 parts of a coupling agent, 4-7 parts of a flexibilizer and 1-4 parts of color masterbatch, the inorganic filler comprises cerium-doped rectorite. By means of the technical scheme, the problem that in the prior art, a power cable protection pipe is insufficient in corrosion resistance is solved.

The invention discloses a cerium oxide doped indium oxide-based target material and a preparation method and application thereof.The cerium oxide doped indium oxide-based target material is prepared from, by weight, 97-99 parts of indium oxide, 1-3 parts of cerium oxide and 0.01-0.05 part of metal oxide, and the metal oxide comprises at least one of aluminum oxide, zirconium oxide and titanium oxide. According to the cerium oxide-doped indium oxide-based target material and the preparation method and application thereof, the sintering density of the target material is improved, air holes between crystal boundaries are eliminated, the bulk resistivity of the target material is remarkably reduced in a metal oxide doping mode, and the cerium oxide-doped indium oxide-based target material can be applied to magnetron sputtering coating and improve the migration rate of a sputtering film.

This invention relates to the field of optoelectronic materials and devices, and in particular to a method for preparing a cerium-doped tin oxide electron transport layer and its application in perovskite solar cells. The method involves depositing a cerium-doped tin oxide electron transport layer using a chemical bath under isothermal conditions, followed by annealing. Based on this transport layer, an organic-inorganic hybrid upright perovskite solar cell with high efficiency and UV resistance is fabricated. The cerium-doped tin oxide electron transport layer disclosed in this invention successfully incorporates cerium ions into the tin oxide lattice, solving not only the problems of excessive oxygen vacancies on the tin oxide surface and excessive defects at the perovskite interface, but also giving the electron transport layer excellent UV resistance.

The application provides a variable-price rare earth element doped black titanium dioxide catalyst and a preparation method and application thereof, and belongs to the technical field of environmental functional materials and water pollution treatment. The catalyst is prepared by a sol-gel method combined with calcination in a hydrogen-argon mixed atmosphere, with tetrabutyl titanate as a titanium source and lanthanum nitrate and cerium nitrate as rare earth doping sources. Lanthanum / cerium doping can effectively inhibit the generation of rutile phase in the black titanium dioxide, increase the specific surface area, narrow the band gap and construct oxygen vacancy defects, and significantly improve the photocatalytic activity. The preparation process is simple, the cost is controllable, the catalyst has a remarkable selective degradation effect on specific dyes, and an efficient solution is provided for dye wastewater treatment.

The present application relates to the field of hydrogen production by alkaline electrolysis of water, and discloses a cerium-doped nickel-iron-based composite catalytic material, a preparation method and application thereof.The cerium-doped nickel-iron-based composite catalytic material comprises a nickel foam substrate and a cerium-doped nickel-iron-based electrode layer coated on at least part of the nickel foam substrate.The mass ratio of cerium, nickel and iron in the cerium-doped nickel-iron-based electrode layer is 1:60-75:20-40.The average pore diameter of the cerium-doped nickel-iron-based electrode layer is 1-3 microns.The electrode layer of the cerium-doped nickel-iron-based composite catalytic material has an attenuation rate of less than or equal to 0.05 mV / h at 1000 h, and the amount of nickel element deposited is less than or equal to 2 micrograms per liter and the amount of iron element deposited is less than or equal to 100 micrograms per liter at 1000 h, thereby having excellent oxygen evolution activity and stability.

The invention discloses a preparation method and application of a cerium-doped CoTeO3 nano-cluster catalyst, and belongs to the technical field of chemical energy materials. The preparation process comprises the following steps: firstly preparing a metal salt solution and a NaHTe solution, dropwise adding the NaHTe solution into the metal salt solution, stirring, centrifuging, cleaning and drying to obtain the cerium-doped CoTeO3 nano-cluster catalyst. The cerium-doped CoTeO3 nano-cluster catalyst prepared by the invention is constructed by a chemical reduction method, the conductivity of the catalyst is remarkably enhanced by introducing transition metal telluride, and the electronic structure of active sites is further optimized by doping rare earth cerium. In an electrocatalytic oxygen evolution reaction (OER), the catalyst breaks through the energy barrier limitation of a catalytic reaction intermediate by introducing a lattice oxygen oxidation mechanism (LOM), shows excellent catalytic activity and stability, and shows a good industrial application prospect.

The invention relates to the technical field of magneto-optical materials, and particularly provides a cerium-doped yttrium iron garnet single crystal thick film and a preparation method thereof. The chemical formula of the cerium-doped yttrium iron garnet single crystal thick film is Ce < x > R < 3-x > Fe < y > M < z > A < 5-y-z > O < 12 >, x is equal to 0.3 to 1.4, y is equal to 0.05 to 5, and z is equal to 0.01 to 1; in the chemical formula of the cerium-doped yttrium iron garnet single crystal thick film, the element R is europium Eu, and / or the element A is selected from at least one of zirconium Zr, silicon Si and tin Sn. According to the method, the Ce < 4 + > concentration in the growth stage of the single crystal thick film is reduced, so that the product quality of the cerium-doped yttrium iron garnet single crystal thick film is improved.

The application belongs to the technical field of solid-state batteries, and relates to a solid-state electrolyte of a solid-state battery, in particular to a cerium doped MOFs based composite solid-state electrolyte and a preparation method and application thereof. 4+ / Ce 3+ / Ce 4+ The application induces the rich Zr 4+ / Ce 3+ / Ce 4+ Multi-valence active centers, combined with the regulation effect of the interface ion flow of the graphite phase carbon nitride (g-C3N4) two-dimensional layered material, significantly improve the comprehensive performance of the composite polymer solid-state electrolyte, such as ion conductivity, electrochemical window, electrochemical stability and the like.

The invention belongs to the technical field of new energy materials, and relates to a preparation method for preparing a copper-doped carbon nanofiber coated cerium-doped manganous oxide composite material serving as a high-cycle-stability zinc positive electrode of an aqueous zinc ion battery by combining an electrostatic spinning method and high-temperature annealing.

This invention discloses a cerium-doped diatom-based silicon-carbon anode material, its preparation method, and its application, belonging to the technical field of lithium battery anode materials and their preparation. Using a diatom shell as a framework, a bio-doping method is employed. When the diatoms grow to the early logarithmic phase in a culture medium, cerium ammonium nitrate is added to the diatom culture medium for co-cultivation. The co-cultivated diatom shells are then calcined at high temperature to obtain the cerium-doped diatom-based silicon-carbon anode material. This invention employs a two-stage cultivation strategy, introducing cerium ammonium nitrate after the diatoms have reached the early logarithmic phase to avoid toxic inhibition during the growth-sensitive period. Simultaneously, it utilizes the efficient absorption and doping capabilities of diatoms during the active biomineralization phase, achieving a balance between high doping efficiency and structural integrity. This method utilizes the biomineralization capabilities of diatoms to achieve uniform elemental doping, resulting in a simple, low-cost, and environmentally friendly process; providing a new approach for the development of high-performance silicon-carbon anode materials.

The invention relates to a lithium-rich manganese-based positive electrode material, a preparation method thereof and a lithium ion battery. The lithium-rich manganese-based positive electrode material comprises a cerium-doped lithium-rich manganese-based positive electrode material core and a coating layer, the coating layer comprises a cobalt boride coating layer and a carbon coating layer which are stacked in sequence, and the cobalt boride coating layer is located on the surface of the cerium-doped lithium-rich manganese-based positive electrode material core. The core of the lithium-rich manganese-based positive electrode material is doped with the cerium element, the crystal structure of the lithium-rich manganese-based positive electrode material can be effectively stabilized, the electronic conductivity and the ion diffusion rate of the material can be improved, meanwhile, the cobalt boride layer and the carbon layer on the surface act synergistically, the lithium-rich manganese-based positive electrode material is coated in all directions, and the lithium-rich manganese-based positive electrode material can be applied to the lithium-rich manganese-based positive electrode material. And doping and coating are adopted for modification at the same time, so that the chemical stability and the electrochemical performance of the lithium-rich manganese-based positive electrode material can be effectively improved.

The present invention provides a cerium oxide doped material, a preparation method thereof and an application thereof. The cerium oxide doped material includes a cerium oxide matrix and a dopant doped in the cerium oxide matrix; the dopant includes an alkali metal oxide and at least two rare earth oxides other than cerium; and the following formulas 1 and 2 are also satisfied: 0.2 < M < 0.4, formula 1, 1 < N < 2, formula 2, where M is the emissivity of the cerium oxide doped material at 600 °C, and N is the thermal conductivity of the cerium oxide doped material at 600 °C. The cerium oxide doped material provided by the present invention has a low infrared radiation degree in a high temperature environment of 600 °C and is suitable for high temperature resistant low infrared emission scenarios.

The application relates to the technical field of magnets, in particular to a cerium-doped high-coercivity neodymium-iron-boron magnet and a preparation process thereof. In view of the problem that the existing cerium-doped magnet has insufficient coercivity and reduced remanence due to uneven distribution of cerium, the process comprises the following steps: fluorination treatment on the surface of a main phase powder, cold pressure forming in a magnetic field, electrophoretic deposition to build a cerium fluoride skeleton, step-by-step vacuum impregnation of cerium salt and a fluorine source, and degreasing, sintering and grain boundary heat treatment. The method controls the uniform enrichment of cerium at the grain boundary, forms a continuous and dense grain boundary phase, effectively improves the intrinsic coercivity, remanence and high-temperature stability, simultaneously improves the corrosion resistance and reduces the dependence on heavy rare earths.

The invention belongs to the technical field of electrode materials, and particularly relates to an array sulfur-rich vacancy rare earth element doped molybdenum disulfide nanosheet electrode material and a preparation method and application thereof. After pretreated carbon cloth is immersed into a mixed solution of a soluble molybdenum source, a sulfur source and a rare earth soluble salt, a hydrothermal reaction is adopted, and the array type sulfur-rich vacancy rare earth element doped molybdenum disulfide nanosheet electrode material is obtained. In the array type sulfur-rich vacancy rare earth element doped molybdenum disulfide nanosheet electrode material obtained by the method, the array type sulfur-rich vacancy cerium doped molybdenum disulfide nanosheet grows on the pretreated carbon cloth in situ, so that the problem of poor compatibility when the array type sulfur-rich vacancy cerium doped molybdenum disulfide nanosheet is matched with a current collector and a binder for use is solved; the problem that molybdenum disulfide is poor in conductivity and cycling stability is solved in a rare earth element doping mode, and the number and distribution of sulfur vacancies are accurately controlled by regulating and controlling the doping proportion of rare earth soluble salt.

The invention belongs to the technical field of tungsten material manufacturing, and particularly relates to a tungsten-cerium alloy wire and a preparation method thereof.The preparation method comprises the steps that a cerium-containing solution and ammonium paratungstate are mixed through a spray mixing method and dried, and a mixture is obtained; the mixture is calcined at the temperature lower than or equal to 900 DEG C and reduced in the hydrogen atmosphere at the temperature of 800-1050 DEG C, and cerium-containing tungsten powder is obtained; the cerium-containing tungsten powder is subjected to isostatic pressing forming, sintered for 1-1.5 h at the temperature of 1500-1600 DEG C in the hydrogen atmosphere and then sintered for 5-8 h at the temperature of 2300-2450 DEG C, and a tungsten rod is obtained; and the tungsten rod is subjected to rolling, electric pulse treatment, forging and wire drawing treatment, and the tungsten-cerium alloy wire with the diameter being 20-28 microns is obtained. The cerium element is uniformly distributed in the alloy wire through solid-liquid cerium doping; through the two-stage sintering process, the compactness and the mechanical property of the tungsten rod are improved; the prepared tungsten-cerium alloy wire has excellent tensile strength, high elongation and excellent fatigue resistance, and shows low edge breakage rate, low wire breakage rate and long service life in silicon nitride ceramic substrate cutting.

The present application relates to the technical field of lens mask, especially to a highway LED transparent lens mask and a preparation method thereof, which comprises the following components by weight: 80-90 parts of poly(methyl methacrylate)-b-poly(glycidyl methacrylate) block copolymer (PMMA-b-PGMA); 0.5-2.0 parts of nano-scale cerium-doped zinc oxide (Ce-ZnO) quantum dots; 5-10 parts of random ethylene-methyl acrylate-glycidyl methacrylate terpolymer; 1-3 parts of photochromic spiropyran derivative modified silica nanoparticles; and 1-3 parts of hyperbranched fluorinated polyether. The high light transmittance is ensured, and the active sites are provided through the PGMA block, which is conducive to the uniform dispersion and chemical bonding of other functional components. The nano-scale cerium-doped zinc oxide (Ce-ZnO) quantum dots are introduced to realize efficient ultraviolet blocking and light stability.

The application relates to the field of secondary battery material preparation, in particular to a dual-ion doped hard carbon composite material and a preparation method and application thereof, the preparation method comprises the following steps: combining a hard carbon precursor with a mixed solution of an organic sodium salt and an organic cerium salt in an alkaline solution, and obtaining the dual-ion doped hard carbon composite material after carbonization. The obtained hard carbon composite material utilizes the doping of sodium ions and cerium ions to improve the transmission rate of sodium ions in the charging and discharging process and improve the rate, and the cerium doping improves the electronic conductivity of the material and the cycle performance.

The invention discloses a chlor-alkali large-area titanium anode and a preparation method thereof. The chlor-alkali large-area titanium anode comprises a titanium base material used for forming an electrode structure and an electrode coating arranged on the surface of the titanium base material, and the titanium base material is a composite body of a planar net and a three-dimensional net. The electrode coating on the surface of the titanium base material sequentially comprises a compact corrosion-resistant bonding layer serving as a bottom layer, a conductive transition layer serving as a middle layer and an acid-corrosion-resistant high-chlorine-evolution-performance active layer serving as a surface layer. The compact corrosion-resistant binding layer is a tin oxide-cerium oxide coating, the conductive transition layer is a ruthenium oxide-cobalt oxide coating, and the acid corrosion-resistant high-chlorine-evolution-performance active layer is a tin and cerium doped ruthenium oxide-iridium oxide high-chlorine-evolution-performance acid corrosion-resistant coating. In the electrode coating, the transition layer with conductivity can also relieve the difference of thermal expansion coefficients of the bottom layer and the surface layer, and the service life of the electrode is effectively prolonged. By calculating and optimizing the molar ratio of metal in the coating, the cost is remarkably reduced while the chlorine evolution potential is reduced.

This invention discloses a cerium-doped InP-based single-photon avalanche detector for space communication and its fabrication method. The detector's epitaxial structure, from bottom to top, includes a substrate, an N-type buffer layer, an absorption layer, a band transition layer, an N-type charge layer, an intrinsic multiplication layer, an intrinsic InP layer, and a cerium-doped P-type contact layer. The core innovation lies in the dual radiation-resistant design of the Ce-doped P-type contact layer and the Ce-doped modified stacked passivation film. The fabrication method involves MOCVD epitaxial growth, spin-coating source diffusion to prepare the P-type contact layer, ICP etching and wet repair, magnetron sputtering doping, and electrode fabrication. This invention utilizes Ce's unique electronic structure to suppress radiation-induced defects and combines this with an SACM structure to optimize the electric field distribution, achieving low dark count rate, high detection sensitivity, and excellent neutron radiation resistance. The process is compatible with existing semiconductor production lines and is suitable for wafer-level mass production, meeting the high-reliability single-photon detection requirements of aerospace missions such as space laser communication and quantum key distribution.

The invention belongs to the technical field of electro-catalytic materials, and discloses a cerium-doped core-shell series catalyst, a preparation method and an application in preparation of ethylene by electro-catalytic reduction of carbon dioxide, the catalyst is an Ag coated Cu2O catalyst taking Ag as a core and cerium-doped Cu2O as a shell layer; wherein the mole percentage of Ce is greater than 0% to 10%, and the mole percentage of Ce is calculated based on the total mole number of Cu and Ce. The rare earth element cerium (Ce) is creatively introduced as a doping agent. Ce is famous for unique Ce < 3 + > / Ce < 4 + > redox pairs and excellent oxygen vacancy regulation and control capability, and is often used as an electronic auxiliary agent or a structure stabilizer in the field of catalysis. If Ce can be introduced into the Ag-coated Cu2O core-shell structure, the oxidation state of Cu is dynamically stabilized in the reaction process by utilizing the electron interaction between Ce and Cu, so that the catalytic active center is protected, and the stability and ethylene selectivity of the catalyst are improved.

The invention discloses a preparation method of a cerium-doped MnCO3-Mn2O3 composite material, and belongs to the technical field of aqueous zinc ion batteries. The preparation method comprises the following steps: dissolving a manganous nitrate aqueous solution, urea and cerium nitrate hexahydrate in purified water, and carrying out hydrothermal reaction, filtering, drying and calcining treatment to obtain the cerium-doped MnCO3-Mn2O3 composite material. The microstructure shows that the composite material is composed of micron-sized blocky cubes and spherical-like particles stacked by sheet layers, the micron-sized blocky cubes and the spherical-like particles are consistent in orientation and provided with triangular pyramid-shaped protrusions, and the spherical-like nanoparticles of 50-200 nm are evenly anchored on the surfaces and in gaps of the composite material. The directional anchoring structure is beneficial to construction of a continuous electron conduction network and exposure of a rich active interface to form a stable cerium-doped double-phase composite system, so that the reaction kinetic performance of an electrode is remarkably improved, and the electrochemical performance of the composite material is improved.

The invention provides a preparation method of a high-power and high-energy-density lithium iron phosphate material. The preparation method comprises the following steps: (1) preparing a lithium iron phosphate precursor; (2) precursor pretreatment: carrying out ball milling on the lithium iron phosphate precursor and a liquefied paraffin / polyvinyl chloride binder in a solvent, and carrying out vacuum drying to obtain a pretreated precursor; (3) cerium doping: mixing a cerium salt solution with the pretreated precursor, and then performing spray drying to obtain a cerium-doped precursor; (4) two-stage sintering: first-stage sintering: sintering the cerium-doped precursor in an inert atmosphere to obtain a sintered intermediate; and second-stage sintering: adding a titanium source into the sintering intermediate to obtain a mixture, and continuously sintering the mixture in an inert atmosphere to obtain the lithium iron phosphate material, wherein the sintering temperature of the first-stage sintering is higher than that of the second-stage sintering. The lithium iron phosphate material prepared by the preparation method disclosed by the invention has relatively high energy density and power density.

This invention discloses a cerium-doped nickel-iron layered double hydroxide supported on nickel foam, which is prepared from cerium-doped nickel-iron layered double hydroxide NiFeCe-LDH. NiFeCe-LDH is prepared in situ by one-step electrodeposition on the surface of nickel foam NF using a nickel source, an iron source, and a cerium source. The lattice spacing of the (012) and (018) crystal planes is increased to 0.27 nm and 0.21 nm, respectively; and oxygen vacancies are present within the lattice. The basic microstructure is a three-dimensional "micro-flower" nanocluster structure with uniformly grown open surfaces, wherein the nanocluster structure is formed by interwoven and interconnected nanosheets. When the cerium-doped nickel-iron layered double hydroxide supported on nickel foam is used as an OER catalyst for water electrolysis, at a current density of 50 mA cm⁻¹... ‑2 Under these conditions, the OER overpotential is 210–220 mV; at a current density of 100 mA cm⁻¹ ‑2 Under these conditions, the OER overpotential is 220–230 mV; at a current density of 50 mA cm⁻¹ ‑2 Under these conditions, when the running time is 120 h, the potential is 0.6-0.7 V; compared with the initial potential, there is no significant fluctuation, and the decrease is 2-4%.

The application discloses a preparation method of a high-density cerium-doped indium oxide target material, which comprises the following steps: wet ball milling of raw material powder to obtain an ICO slurry, granulation of the ICO slurry to obtain ICO granulated powder, first compression molding of the ICO granulated powder to obtain an ICO blank, degreasing of the ICO blank, multiple compression molding of the ICO blank to obtain an ICO green body, and sintering of the ICO green body to obtain the cerium-doped indium oxide target material; the raw material powder is composed of In2O3 coarse powder, In2O3 fine powder and CeO2 powder; the particle size of the In2O3 coarse powder is 120-300 nm, and the particle size of the In2O3 fine powder is 20-50 nm. The application solves the bottleneck problem of the preparation technology of the high-density ICO target material, and the obtained ICO sintered target material has excellent properties of high density, low resistivity and high strength, and the process flow is simple, low in cost, green and pollution-free, and is suitable for large-scale production.

A cerium-doped mesoporous bioactive glass nanoparticle, its preparation method, hydrogel and application. The Ce-MBG@L-Car composite nanoparticle is synthesized by the surfactant template method to obtain MBG with a uniform mesoporous structure and good particle size distribution, providing ideal drug carrier properties. By doping cerium element through ion replacement, the antioxidant performance of the material is significantly improved, and the stability and loading capacity of L-carnosine are enhanced through coordination chelation. All the characterization and in vitro and in vivo experimental results show that the Ce-MBG@L-Car composite nanoparticle not only has a high drug loading capacity, but also has potential dual anti-glycation and antioxidant effects in the diabetic microenvironment, providing a solid material basis for subsequent bone defect treatment.