Shaanxi University of Science and Technology

Liyun Cao

Jianfeng Huang

Liangliang Feng

Xiao Xun Zhang

Qianqian Liu

Wenbin Li

Guojuan Hai

Ruizi Li

Jiayin Li

Jie Fei

Shuwei He

Haibo Ouyang

Yijie Ren

Xunwei Chang

Xin Wang

Zhanwei Xu

Chunyan Yao

Mengfan Niu

Ting Xiao

Kang Li

Duo Li

Shuainan Li

Lei Zhou

Danyang He

Yongqiang Feng

Li Feng

Cuiyan Li

Wei Hao

Provided is a three-phase system VO/VN/MoC nanoelectrode material, and a preparation method and application thereof. The nanoelectrode material comprises VOparticles, VN particles, and MoC particles. The VOparticles, VN particles, and MoC particles are interlaced in lattice stripes and are uniformly distributed. The mass ratio of the VO, VN and MoC is (1 to 4):(10 to 40):(4 to 16). The above-mentioned three kinds of nanoparticles are intertwined to form more incoherent interface area. The increase in the area of the incoherent interface area will cause more defects, so that more active sites are provided, and the hydrogen production performance is improved.

Three-phase system vanadium trioxide/vanadium nitride/molybdenum carbide nanoelectrode material, and preparation method and application thereof

The present disclosure relates to a self-supporting electrocatalytic material and a preparation method thereof, the self-supporting electrocatalytic material is a CuO/WO/CF self-supporting electrocatalytic material. The CuO/WO/CF self-supporting electrocatalytic material comprises: a foamed copper substrate, and CuO and WOgrown in situ on the foamed copper substrate.

Self-supporting electrocatalytic material and preparation method thereof

The present disclosure relates to a WO/COO/CoWO/NF self-supporting electrocatalytic material and a preparation method thereof, the WO/CoO/CoWO/NF self-supporting electrocatalytic material comprising: a foamed nickel substrate and a WO/CoO/CoWOcomposite material formed in-situ on a foamed nickel substrate. Preferably, the WO/CoO/CoWOcomposite material is CoO/CoWOcomposite nanosheets and WOnanowires distributed among the CoO/CoWOcomposite nanosheets.

W18O49/CoO/CoWO4/NF self-supporting electrocatalytic material and preparation method thereof

The present disclosure relates to a WO/CoO/NF self-supporting electrocatalytic material and a preparation method thereof, the WO/CoO/NF self-supporting electrocatalytic material comprises: a foamed nickel substrate, and a WO/CoO composite nano material generated on the foamed nickel substrate in situ; preferably, wherein the WO/CoO composite nano material comprises CoO nanosheets attached directly to the foamed nickel substrate, and WOnanowires attached to the nanosheets.

W18O49/CoO/NF self-supporting electrocatalytic material and preparation method thereof

The present invention relates to a core-shell FeP@C&#x2014;FeC electrocatalyst and a preparation method and application thereof. The core-shell FeP@C&#x2014;FeC electrocatalyst comprises a carbon nanotube as a matrix which is formed by a carbon layer with FeCnano-dots distributed therein, and FeP@C embedded in the carbon nanotube. The FeP@C has a core-shell structure and is formed by coating FeP with carbon.

Core-shell FE2P@c-FE3C electrocatalyst and preparation method and application thereof

The invention relates to an ultra-thin carbon-layer composite material modified by nickel nanoclusters and vanadium carbide particles, and its preparation method and application. The composite material comprises a two-dimensional ultra-thin carbon-layer as a matrix, in which nickel clusters and vanadium carbide nanoparticles are embedded to form coupling interfaces between Ni and C, VC and C, and Ni and VC. The thickness of the two-dimensional ultra-thin carbon-layer is less than 10 nm.

Ultra-thin carbon-layer composite material modified by nickel nanoclusters and vanadium carbide particles and its preparation method and application

The invention relates to a V-NiP/g-CNphotocatalyst, a preparation method, and application thereof. The V-NiP/g-CNphotocatalyst is a composite material of V-NiP and g-CN, wherein V-NiP has the spherical structure formed by nanosheets; the mass ratio of the V-NiP and g-CNis (0.01 to 0.2):1.

V-NiP/g-CNphotocatalyst and its preparation method and application thereof

A preparation method of a tetragonal NaVO.HO nanosheet-like powder includes steps of: (Step 1) simultaneously adding NaVOand NaS.9HO into deionized water, and then magnetically stirring, and obtaining a black turbid solution; (Step 2) sealing after putting the black turbid solution into an inner lining of a reaction kettle, fixing the sealed inner lining in an outer lining of the reaction kettle, placing the reaction kettle into a homogeneous reactor, and then performing a hydrothermal reaction; and (Step 3) after completing the hydrothermal reaction, naturally cooling the reaction kettle to the room temperature, and then alternately cleaning through water and alcohol, and then collecting a product, drying the product, and finally obtaining the tetragonal NaVO.HO nanosheet-like powder with a thickness in a range of 30-60 nm and a single crystal structure grown along a (002) crystal orientation.

Preparation method and application of tetragonal NaVOHO nanosheet-like powder

A preparation method of a tetragonal NaVO.HO nanosheet-like powder includes steps of: (S1) simultaneously adding NaVOand NaS.9HO into deionized water, and then magnetically stirring, and obtaining a black turbid solution; (S2) sealing after putting the black turbid solution into an inner lining of a reaction kettle, fixing the sealed inner lining in an outer lining of the reaction kettle, placing the reaction kettle into a homogeneous reactor, and then performing a hydrothermal reaction; and (S3) after completing the hydrothermal reaction, naturally cooling the reaction kettle to the room temperature, and then alternately cleaning through water and alcohol, and then collecting a product, drying the product, and finally obtaining the tetragonal NaVO.HO nanosheet-like powder with a thickness in a range of 30-60 nm and a single crystal structure grown along a (002) crystal orientation.

Preparation method and application of tetragonal NaVO&#x22c5;HO nanosheet-like powder

A composite material preparation system comprises a sealed reaction kettle for containing reactants and base materials; temperature and pressure detecting units for detecting the temperature and pressure inside the reaction kettle; and a heating unit for hydrothermally induced heating, based on the detected temperature and pressure values. The heating unit comprises an induction coil, an induction heating device, and a control mechanism for controlling the generation of an induction frequency of the induction heating device. The reaction kettle is located in the induction coil, both ends of the induction coil are mounted on an outer wall of the induction heating device, and the induction coil and the induction heating device have circulating water introduced inside. The device can prepare a composite material having good interface bonding, by utilizing induced heating under the premise of controllable temperature and pressure, and by utilizing the characteristic that the reactants themselves are heated.

Composite material preparation system and method effectively improving composite material interface bonding

Provided is a method for the preparation of a porous hollow shell WO/WSnanomaterial, comprising: (1) adding a hexavalent tungsten salt to a sol A comprising mesocarbon microbeads, and stirring to obtain a sol B; (2) drying and grinding the sol B, and then heating a resulting powder at 200-500&#xb0; C. for 0.5-2 hours to obtain a porous hollow shell WOnanocrystalline material; (3) placing the porous hollow shell WOnanocrystalline material obtained by Step 2 and a sulfur powder separately in a vacuum furnace, controlling such that a degree of vacuum is &#x2212;0.01 to &#x2212;0.1 MPa and a temperature is 200-500&#xb0; C., and reacting for 0.5-3 hours to obtain a WO/WSporous hollow shell nanocrystalline material. Also provided is a porous hollow shell WO/WSnanocrystalline material obtained by the method.

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Shaanxi, China

Liyun Cao