University of Electronic Science and Technology of China

Xinrui He

Chao Wang

Jing Jiang

Yi Niu

Ting Zhou

Rui Zhang

Zhipeng Li

Yan Pan

Yalin Hu

A method for preparing a supercapacitor electrode material Ni doped CoP/Ni foam is provided, and the CoPis applied to the supercapacitor for the first time. The method belongs to a technical field of synthesis and preparation of supercapacitor materials. The present invention adopts a low-temperature phosphating process to prepare the Ni-doped CoP/foamed nickel as the electrode material of the supercapacitor, so as to provide advantages such as simple synthesis process, easy control, low cost and high specific capacity. The supercapacitor electrode material Ni doped CoP/Ni foam prepared by the present invention has a hierarchical structure and a large specific surface area, which is beneficial to shorten an ion transmission path, reduce an interface resistance between the electrode material and electrolyte, provide more active sites, and provide a higher specific capacity in alkaline electrolyte. The electrode material shows great potential in electrochemical energy storage.

Method for preparing super capacitor electrode material Ni doped CoP/foam nickel

A low-temperature high-performance thermoelectric material possesses a chemical formula of (AgCu)TeSe, wherein &#x2212;0.025&#x2264;x&#x2264;0.075, 0.6&#x2264;y&#x2264;1.4, 0&#x3c;z&#x2264;0.25, diffraction peaks of a main phase of the thermoelectric material are indexed as a cubic structure at room temperature of 300 K, a highest ZT value between 300 K and 673 K is in range of 0.4 to 1.6, an average ZT value (ZT)is in range of 0.2 to 1.4. The highest ZT value of this material at the room temperature is comparable to that of BiTe, which is an excellent complement to existing low-temperature thermoelectric materials. At the same time, the present invention also indicates a new strategy to improve the low-temperature thermoelectric performance of CuX-based (here, X is S, Se, Te) materials, and lays a foundation for the application of CuX-based materials in the field of low-temperature thermoelectricity.

Low-temperature high-performance thermoelectric material and preparation method thereof

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Sichuan, China

Xinrui He