Shaanxi University of Science and Technology

Jie Fei

Jianfeng Huang

Liyun Cao

Jiayin Li

Haibo Ouyang

Xin Wang

Wenbin Li

Ruizi Li

Lei Zhou

Cuiyan Li

Wei Hao

Zhanwei Xu

Chunyan Yao

Duo Li

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

Jie Fei