388 results about "Strontium titanate" patented technology

The invention discloses a preparation method and application of a high-quality single primitive cell thickness chromium-antimony magnetic film, and the method comprises the steps: placing a strontium titanate substrate in a cavity of molecular beam epitaxial growth equipment, and carrying out the degassing and high-temperature annealing of the strontium titanate substrate under an ultra-vacuum condition until regular steps appear on the surface of the strontium titanate substrate; and with a chromium source and an antimony source as evaporation sources, growing the chromium-antimony magnetic thin film on the pretreated substrate by adopting a molecular beam epitaxy growth technology. The thin film prepared by the method has extremely remarkable magnetic anisotropy, the easy magnetization axis of the thin film is in the out-of-plane direction, and the magnetization intensity difference in the in-plane direction and the out-of-plane direction is obvious; in addition, the thin film has ferromagnetism, and the coercive field is gradually reduced along with temperature rise; in addition, the film also has stable magnetic properties, and shows the characteristic that the Curie temperature is higher than room temperature. And meanwhile, the preparation method has the advantages of accurately controlling the layer number of the thin film and realizing high-quality growth, and an ideal magnetic thin film material is provided for development of a new generation of semiconductor devices.

The invention provides an anti-ferroelectric lanthanum ferrite, bismuth ferrite and strontium titanate superlattice film with high energy storage density as well as a preparation method and application thereof. The anti-ferroelectric lanthanum ferrite, bismuth ferrite and strontium titanate superlattice film with high energy storage density comprises a substrate layer, a bottom electrode layer and a plurality of stacked relaxation ferroelectric layers, wherein the bottom electrode layer and the multiple stacked relaxation ferroelectric layers are sequentially arranged on the substrate layer; each relaxor ferroelectric layer sequentially comprises a first functional layer, a second functional layer and a third functional layer from bottom to top; the first functional layer comprises LaFeO3, the second functional layer comprises BiFeO3, and the third functional layer comprises SrTiO3. The anti-ferroelectric lanthanum ferrite, bismuth ferrite and strontium titanate superlattice thin film with the high energy storage density has small electric leakage performance and high polarization value, and more excellent energy storage performance is achieved.

The invention belongs to the technical field of electro-catalysis, and particularly relates to iridium-cluster-loaded strontium titanate as well as a preparation method and application thereof. The strontium titanate loaded with the iridium cluster provided by the invention comprises strontium titanate and the iridium cluster loaded on the surface of the strontium titanate, the iridium cluster comprises the following components: an iridium elementary substance and an iridium oxide wrapping the surface of the iridium elementary substance; the chemical composition of the strontium titanate is SrTiO3-x, and x is more than 0 and less than 0.5; the chemical composition of the iridium oxide is IrO2-y, and y is more than 0 and less than 2; the strontium carbonate is of a cubic octahedral structure. The iridium-cluster-loaded strontium titanate not only has excellent electrocatalytic activity, but also has long-term stability, and can be efficiently and stably operated for a long time under the working condition of PEMWE.

The invention discloses a barium strontium titanate-based high-entropy energy storage ceramic with a core-shell structure, the barium strontium titanate-based high-entropy energy storage ceramic comprises SiO2 serving as a shell part and high-entropy ceramic powder serving as a core part, and the high-entropy ceramic powder comprises barium strontium titanate serving as a main phase and sodium potassium bismuth titanate serving as a high-entropy doping phase. The invention also discloses a preparation method of the barium strontium titanate-based high-entropy energy storage ceramic with the core-shell structure, which comprises the following steps: mixing and dissolving a carbonate raw material of a main phase and carbonate or oxide of a high-entropy doping phase, and stirring to form gel; removing organic components in the gel; calcining to form a perovskite phase to obtain high-entropy ceramic powder; sequentially dispersing in an acidic activator, a weakly acidic buffer agent and a weakly alkaline surfactant, adding a silicon source precursor, and heating to form a coating phase SiO2; and after sintering, annealing to obtain a final product. According to the barium strontium titanate-based high-entropy energy storage ceramic with the core-shell structure, the polarization intensity and the breakdown field strength of the ceramic can be improved at the same time.

The invention discloses a terahertz amplitude-frequency-adjustable narrow-band absorber based on photosensitive silicon and a strontium titanate material, and relates to the technical field of terahertz metamaterial absorber application. The structure mainly comprises a gold substrate, a strontium titanate dielectric layer and a composite resonant structure array at the top. According to the invention, tunable materials of photosensitive silicon and strontium titanate are used, and the conductivity of the photosensitive silicon is changed by controlling the intensity of an external pump light source, so that the amplitude of an absorption frequency point is regulated and controlled; the dielectric constant of strontium titanate is changed by controlling the external temperature, and the frequency of an absorption frequency point is regulated and controlled, so that the effect of independent, continuous and modulatable amplitude-frequency is achieved. The terahertz function logic device has the advantages of being simple in structural design, flexible, tunable, high in functionality and the like, and a new thought can be provided for design of the terahertz function logic device.

The invention provides a high-voltage low-loss dielectric material and a preparation method thereof, and relates to the technical field of high-voltage ceramic capacitors, and the high-voltage low-loss dielectric material comprises the following raw materials in parts by mass: 35-38 parts of barium titanate, 20-29.5 parts of strontium titanate, 15-17.5 parts of titanium dioxide, 9-12 parts of bismuth oxide, 3-4 parts of zirconium oxide, 0.8-1.0 part of X, 1.2-1.4 parts of antimony oxide, 1-1.2 parts of calcium carbonate and the like. The preparation method of the dielectric material comprises the following steps: 1, preparing the dielectric material; melting calcium carbonate, magnesium oxide, zinc oxide and the like, performing water quenching, and performing ball-milling granulation to obtain zinc borosilicate glass powder; uniformly mixing the zinc borosilicate glass powder with barium titanate, strontium titanate, titanium dioxide and the like, and granulating to obtain oxide powder; and tabletting and sintering the oxide powder to obtain the high-pressure low-loss dielectric material. The high-voltage low-loss dielectric material is high in dielectric constant, small in dielectric loss, high in compression strength and good in high-temperature stability, and the preparation method is simple.

The invention relates to the technical field of dielectric ceramics, and provides a gadolinium-tantalum co-doped strontium titanate-based giant dielectric ceramic material and a preparation method thereof. The gadolinium-tantalum co-doped strontium titanate-based giant dielectric ceramic material is obtained by co-doping a strontium titanate material with gadolinium and tantalum and sintering under a nitrogen condition. The gadolinium-tantalum co-doped strontium titanate-based giant dielectric ceramic material prepared by the method is stable in structure, grains are refined and grow more compactly through nitrogen atmosphere sintering, the types of defect structures in the material are richer through a double-element doping and atmosphere sintering process, and the dielectric property of the strontium titanate-based giant dielectric ceramic material is improved. The result of the embodiment shows that when x is equal to 0.015, the dielectric constant of the gadolinium-tantalum co-doped strontium titanate-based giant dielectric ceramic material is 320926 and the dielectric loss is 0.1119 at the room temperature and the test frequency of 1kHz.

The present invention provides a flexible composite material and a preparation method and application thereof, belonging to the technical field of functional materials. The flexible composite material provided by the present invention comprises a fiber cloth and a strontium titanate nano-micro material compounded in the fiber cloth; the raw materials for preparing the strontium titanate nano-micro material comprise a matrix material and a dispersant, the mass of the dispersant being 0.05-0.2% of the mass of the matrix material; the matrix material comprises the following raw materials in mass fractions: 50-90 parts of powdered resin; 10-50 parts of curing agent; 0-20 parts of antioxidant aid; 0.05-0.2 parts of catalyst; 0-10 parts of surface adjuster; 0-20 parts of light stabilizer; 0.05-5 parts of strontium titanate nano-aid, the strontium titanate nano-aid is a compound of octahedral strontium titanate, hexahedral strontium titanate and irregular body strontium titanate in a specific ratio. The flexible composite material provided by the present invention has excellent weather resistance.

To provide an electrophotographic apparatus and a process cartridge each suppressing the occurrence of image smearing in an output image under a high-temperature and high-humidity environment, provided are the following electrophotographic apparatus and process cartridge. That is, provided are an electrophotographic apparatus including: an electrophotographic photosensitive member; a charging unit; an image exposing unit; a developing unit; and a transferring unit, wherein the electrophotographic photosensitive member includes a surface layer containing indium tin oxide particles and a (meth)acrylic resin, and wherein the toner contains strontium titanate particles as an external additive, and a process cartridge.

This resin composition for molding comprises a curable resin and an inorganic filler containing alumina particles and at least one of calcium titanate particles and strontium titanate particles. The total content of the calcium titanate particles and the strontium titanate particles is 5.0 vol% to 15.0 vol% with respect to the whole inorganic filler, and the content of the whole inorganic filler exceeds 60 vol% with respect to the whole resin composition for molding.

The invention relates to a femtosecond laser processing method for a periodic ferrocobalt oxide single crystal stripe nanostructure, which comprises the following steps of: firstly, preparing a strontium titanate single crystal substrate, and depositing a single crystal epitaxial ferrocobalt oxide film (CFO) on the substrate through pulsed laser; and the included angle between the polarization direction of the femtosecond laser and the lattice orientation of the film is adjusted according to a preset crystallographic direction, so that the surface of the film is induced by the femtosecond laser to form a stripe-shaped periodic surface structure. The single crystal epitaxial cobalt ferrite film prepared by the method has a highly ordered nano structure, and the specific surface area and surface active sites of the material are remarkably improved, so that the application performance of the material in the fields of gas sensing and the like is enhanced.

The invention relates to the technical field of low-dielectric-loss materials, in particular to a high-performance soluble polytetrafluoroethylene material and a preparation method thereof. The high-performance soluble polytetrafluoroethylene material is prepared from the following raw materials in parts by mass: 85 to 100 parts of soluble polytetrafluoroethylene resin, 3 to 7 parts of nano silicon dioxide, 3 to 7 parts of boron nitride or activated boron nitride, 2 to 4 parts of aluminum oxide, 1 to 3 parts of strontium titanate and 0.1 to 1 part of coupling agent. Compared with a traditional low-dielectric-loss material, the low-dielectric-loss low-dielectric-loss material has the advantages that the low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss low-dielectric-loss

A toner including: a toner particle; and an inorganic fine particle, wherein the inorganic fine particle contains a strontium titanate fine particle, a Si-containing protrusion portion is present at a surface of the strontium titanate fine particle, and the toner contains an amorphous polyester resin and an aluminum element at a surface of the toner particle.

The invention relates to the technical field of composite coating preparation materials for battery diaphragms, in particular to a composite coating for a battery diaphragm as well as a preparation method and application. The invention discloses a graphene quantum dot / carbon nanotube composite material, which is prepared from the following components in percentage by weight: 3 to 8 percent of aminated graphene oxide-polydopamine graft, 10 to 18 percent of polyimide-polyetheretherketone-nano SiO2 hybrid, 2 to 5 percent of hydroxyapatite-montmorillonite core-shell particles, 0.5 to 3 percent of zinc borate-melamine cyanurate compound, 1 to 3 percent of graphene quantum dot-carbon nanotube hybrid, 2 to 6 percent of sodium carboxymethyl cellulose and 50 to 70 percent of deionized water. 0.5 to 2 percent of barium strontium titanate nanocrystalline or 1 to 3 percent of polyethylene glycol-polypropylene glycol segmented copolymer can also be added. All the components are combined through molecular-level reaction to construct a high-performance protection network. The composite coating is good in high temperature resistance and mechanical strength, high in ionic conduction efficiency, excellent in flame retardant effect and good in interfacial compatibility, the preparation process is environmentally friendly and easy to industrialize, the composite coating is suitable for various batteries, and the comprehensive performance of the composite coating is superior to that of a traditional coating.

The invention relates to a strontium titanate / boron nitride nanotube composite ceramic core block and a preparation method and application thereof, the composite ceramic core block is prepared from strontium titanate and boron nitride nanotubes, and the mass percent of the boron nitride nanotubes in the strontium titanate / boron nitride nanotube composite ceramic core block is 0.1-3%. The preparation method comprises the following steps: slowly adding obtained surface modified boron nitride nanotube slurry into strontium titanate slurry to obtain strontium titanate / boron nitride nanotube slurry; heating and stirring the strontium titanate / boron nitride nanotube slurry to obtain strontium titanate / boron nitride nanotube composite powder; the strontium titanate / boron nitride nanotube composite powder is subjected to pellet blank compression molding and sintering, and the strontium titanate / boron nitride nanotube composite ceramic pellet is obtained. Compared with the prior art, the heat conduction and mechanical properties of the 90SrTiO3 ceramic core block can be effectively improved.

The purpose of the present invention is to provide an optical fiber pressure sensor based on a strontium titanate crystal substrate with high measurement accuracy, good stability and low cost, and a preparation method thereof, comprising a base, a pressure sensitive diaphragm, an FP cavity and an optical fiber, wherein the pressure sensitive diaphragm is obtained by polishing, photolithography, developing and coating the strontium titanate crystal substrate. Since strontium titanate crystal has a low expansion coefficient, good chemical stability and mechanical strength, it has a significant effect on the measurement accuracy and stability of the sensor. The pressure sensitive diaphragm prepared by strontium titanate has good biocompatibility, reduces damage to the human body, and has low cost, which can further reduce the production cost of the sensor.

The invention relates to the technical field of synthesis and processing of ceramic materials, and discloses a multiphase composite coated high-dielectric-constant ceramic material and a preparation method of the multiphase composite coated high-dielectric-constant ceramic material. 11%-13% of strontium titanate; 5%-7% of holmium oxide; 5%-6% of lead magnesium niobate; 6%-7% of titanium dioxide; 2%-3% of yttrium oxide; 3%-4% of magnesium oxide; 3%-4% of bismuth oxide; 2%-3% of lithium carbonate; 4%-5.5% of silicon dioxide; 1%-2% of zinc oxide; 2.5%-3.5% of manganese dioxide; 6%-7% of copper oxide; 3%-4% of glass powder; 0.05% to 0.08% of lanthanide series elements; through the steps of component pretreatment, ball milling and mixing, drying and sieving, forming, sintering and post-treatment, the component activity is improved through high-temperature calcination pretreatment, and directional growth of crystal grains in the components can be promoted by precisely controlled sintering temperature; the prepared ceramic material has the advantages of high dielectric constant, low dielectric loss, excellent densification effect and good mechanical property.

The invention discloses a multi-morphology strontium titanate photocatalyst with near-infrared light response as well as a preparation method and hydrogen production application thereof, strontium titanate precursors with different morphologies are synthesized through a hydrothermal method, the strontium titanate precursors are subjected to heat treatment under a protective atmosphere, surface carbonization is realized, and the strontium titanate photocatalyst with near-infrared light response is obtained. The multi-morphology strontium titanate photocatalyst with near-infrared light response is obtained. By selecting different titanium sources and reaction conditions, strontium titanate with various morphologies such as mesoporous microspheres, cubic phases and dendrites can be directionally synthesized, and the requirements of different application scenes on catalyst structures are met. Defects and new energy levels are introduced on the surface of SrTiO3 through surface carbonization treatment, so that the light response range of the SrTiO3 is successfully expanded to a near-infrared region, near-infrared light can be efficiently utilized for water photolysis hydrogen production, and wide application prospects are achieved.

Bulk acoustic wave resonators are presented. Such resonators typically operate based on a dynamic nonuniform effective piezoelectricity in composite multilayer ferroelectrics with large electrostriction coefficients, like barium strontium titanate (BST). Harmonic resonance modes of a multilayer bulk acoustic wave resonator can be selectively excited with an electromechanical coupling coefficient equal to the fundament mode, which is contrary to the trend K2∝1 / n2 exhibited by conventional piezoelectric bulk acoustic resonators. Such a resonator allows for the design of a new class of band-switching filters.

The invention belongs to the field of chips, and particularly relates to a capacitor, a memory and a manufacturing method of the memory. The capacitor may include: a first electrode layer; a second electrode layer; the strontium titanate dielectric layer is formed between the first electrode layer and the second electrode layer, and in the direction from the center of the strontium titanate dielectric layer to the two opposite sides of the strontium titanate dielectric layer, the ratio of Sr / (Sr + Ti) in the strontium titanate dielectric layer is gradually decreased, and the ratio of Sr / (Sr + Ti) in the strontium titanate dielectric layer is gradually decreased. One side of the two opposite sides of the strontium titanate dielectric layer is close to the first electrode layer, and the other side of the strontium titanate dielectric layer is close to the second electrode layer. The capacitor of the scheme has the characteristics of high K value and low electric leakage.

The invention discloses a soft light antifouling ceramic and a preparation method thereof, and belongs to the field of building materials, the soft light antifouling ceramic comprises a ceramic body, a cover glaze layer covering the ceramic body and an antifouling glaze layer covering the cover glaze layer, and an antifouling material permeates the antifouling glaze layer. The preparation raw materials of the antifouling glaze layer are optimized, so that the probability of generating bubbles and pores is reduced, and the compactness and apparent quality of the antifouling glaze layer are better; titanium dioxide, zinc phosphate and tourmaline are compounded for use, the antibacterial effect can be remarkably achieved, strontium titanate, copper oxide microspheres, a hardening agent and a wear-resisting agent are further added, the antibacterial effect and wear resistance are further improved, the influence of the environment on an anti-fouling glaze layer is reduced, the probability that pollutants are accumulated on the ceramic surface is further reduced, and the anti-fouling effect is indirectly achieved. Besides, the antifouling glaze layer is coated with an antifouling material with long-acting antibacterial, wear-resistant and stain-resistant properties, and the antifouling material interacts with the antifouling glaze layer, so that the capability of adsorbing pollutants on the surface of the ceramic can be effectively reduced, and further antifouling is realized.

A toner including: a toner particle containing a binder resin; and an inorganic fine particle, wherein the inorganic fine particle contains a strontium titanate fine particle A, a silica fine particle B, and a hydrotalcite particle C, Si is present at a surface of the strontium titanate fine particle A, and a value Si / Sr of a mass ratio of Si to Sr, which is detected in a fluorescent X-ray analysis of the strontium titanate fine particle A, satisfies the following formula (1); 0.20≤Si / Sr≤0.60 . . . (1).

The invention provides a bismuth vanadate modified strontium titanate photocatalytic material and a preparation method thereof. The bismuth vanadate modified strontium titanate photocatalytic material is prepared by mixing the following components in percentage by weight: 0.1-10% of strontium titanate, 0.1-10% of a bismuth vanadate catalyst and 80-95% of a solvent. The preparation method comprises the following steps: 1, mixing strontium titanate with a solvent, and carrying out ultrasonic dispersion treatment on the mixture for 30 minutes to form a uniformly dispersed suspension A; step 2, adding bismuth vanadate into the turbid liquid A, and magnetically stirring for 60 minutes at normal temperature; 3, solid powder is separated, washed and dried; according to the invention, XRD and SET tests prove that BiVO4 and SrTi O3 are successfully subjected to Z-type heterogeneous compounding. Test results show that the formaldehyde removal rate of the material in a liquid phase under visible light reaches up to 88% and is not lower than 80% after four times of circulation, and the material has good stability.

The present application relates to the technical field of water treatment and environmental governance, and particularly relates to a nickel-strontium titanate electrode for removing uranium, a preparation method and application thereof, and the preparation method comprises the following steps: mixing a titanium source, an alcohol amine carrier and an alkaline solution to obtain a precursor solution; adding a nickel source and a strontium source into the precursor solution, performing ultrasonic treatment and hydrothermal reaction to obtain a nickel-strontium titanate material; and coating the nickel-strontium titanate material on the surface of a carbon fiber base material to obtain the nickel-strontium titanate electrode for removing uranium. Through the combination process of nickel doping, hydrothermal reaction and carbon cloth base coating, the prepared electrode forms a porous and uniformly dispersed composite structure, and meanwhile, the electrode can have optimal selectivity and removal efficiency for uranium in the range of pH 3-9. The nickel-strontium titanate electrode for removing uranium prepared by the present application is suitable for large-scale water treatment applications, and has a good application prospect in the fields of nuclear waste water and drinking water purification.

The invention belongs to the technical field of nanoimprint, and particularly discloses a metallic glass atomic-scale step preparation method based on a strontium titanate mold, which comprises the following steps: sequentially performing accurate grinding, annealing, etching, end sealing and the like on an imprint surface of single crystal strontium titanate to prepare a step mold; then preparing a Pt-based bulk metallic glass sample, carrying out thermodynamic characterization on the sample, and determining a'temperature-time 'window of thermoplastic forming; and finally, regulating and controlling nano-imprinting working condition parameters, and preparing atomic-scale steps of the metallic glass based on the strontium titanate mold so as to realize the patterning of an angstrom-scale fine structure on the surface of the metallic glass. The preparation method disclosed by the invention can be used for high-precision forming and long-service-life service of the metallic glass atomic step, and has the characteristics of simple process steps, high finished product precision, large scale and the like.

The invention belongs to the technical field of ceramic materials, and particularly relates to a ceramic dielectric material capable of reducing the sintering temperature of an MLCC and a preparation method of the ceramic dielectric material. The ceramic dielectric material capable of reducing the sintering temperature of the MLCC is prepared by modifying the main crystalline phase magnesium titanate and introducing the components such as the carbon-doped titanium dioxide, the zirconium-containing strontium titanate, the yttrium-modified aluminum oxide and the lanthanum oxide composite material, the multiple components have a synergistic effect, the dielectric loss of the ceramic dielectric material is reduced, a good temperature coefficient is obtained, and the sintering temperature of the MLCC is reduced. And the sintering temperature of the MLCC is reduced through the high specific surface area.

The application discloses a magnetoelectric heterojunction film and a preparation method thereof. The magnetoelectric heterojunction film comprises a strontium titanate base layer, a strontium ruthenate electrode layer, a bismuth ferrite ferroelectric material layer and a SmCo-based ferromagnetic material layer which are stacked in sequence. The magnetoelectric heterojunction film has the multi-ferroelectric layer room-temperature magnetoelectric coupling effect and the excellent magnetic performance of the ferromagnetic layer, and the magnetoelectric coupling effect of the heterojunction film can be enhanced through the strong exchange bias effect at the interface.

The invention discloses pure-phase bismuth ferrite-strontium titanate ceramic as well as a preparation method and application thereof, and belongs to the field of lead-free ferroelectric ceramic. Comprising the following steps: filling pure-phase BFO-STO precursor powder prepared by a hydrothermal method into a graphite mold, controlling the heating rate to a sintering temperature, and sintering under the conditions of external pressure and heat preservation, so as to finally prepare the BFO-STO ceramic. The BFO-STO ceramic is prepared through SPS sintering, volatilization of Bi < 3 + > and generation of impure phases are effectively inhibited, ferroelectric, dielectric and magnetic properties of the BFO ceramic are effectively improved, and possibility is provided for practical application of the BFO-STO ceramic in the fields of functional sensors, magnetic memories, piezoelectric generators, high-temperature inductors and the like.

The application relates to the field of environment-friendly ceramic technology, and particularly relates to a high-wear-resistance environment-friendly ceramic material and a preparation method thereof. The preparation method comprises the following steps: weighing raw materials according to weight parts: strontium titanate 10-15 parts, aluminum oxide 10-15 parts, mixed and adjusted silicon carbide fiber adjusting and connecting material 7-11 parts, and modified titanium oxide agent 5-8 parts. The environment-friendly ceramic material adopts the strontium titanate, the aluminum oxide, the mixed and adjusted silicon carbide fiber adjusting and connecting material and the modified titanium oxide agent, the raw materials are adjusted and matched, the raw materials are synergized, the environment-friendly ceramic material is prepared, the wear resistance, the heat conductivity and the dielectric loss of the environment-friendly ceramic material can be coordinately improved, and the alkali corrosion stability of the product is obviously improved.

The invention belongs to the technical field of hydrogen storage materials, and particularly relates to a preparation method of a light-driven magnesium-based composite hydrogen storage material, which comprises the following steps: mixing and grinding strontium titanate and sodium borohydride in a mortar; then, heating and calcining the mixture in a tubular furnace in an argon atmosphere, and carrying out surface modification treatment; then, washing the calcined product, and performing vacuum drying to obtain STO-450 particles with reconstructed surfaces; mgH2 and STO-450 particles are mixed through a high-energy ball milling method, the MgH2-Y wt.% STO-450 composite hydrogen storage material is prepared, and Y is the mass fraction of the STO-450 particles in the composite hydrogen storage material. The temperature rising rate of the prepared light-driven magnesium-based composite hydrogen storage material is greatly increased, efficient solar photo-thermal conversion is achieved, the energy utilization rate is high, and the dehydrogenation amount is increased by nearly two times compared with that of a common strontium titanate composite hydrogen storage material.