Yu Wenjing, Zhang Shaohua, Gao Kun, Lin Xiangyun, Han Yuyang, Zhang Zhipan
Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China.
Nanotechnology. 2022 Sep 26;33(50). doi: 10.1088/1361-6528/ac8f9b.
CoO-MoSe@C nanocomposite has been prepared by a convenient method via combining hydrothermally synthesized MoSe@C and CoO. When catalyzing the hydrogen evolution reaction and oxygen evolution reaction, the catalyst features low overpotentials of 144 mV and 360 mV (both at 10 mA cmcurrent density), respectively. It can also serve as the cathode in the lithium-oxygen battery and the device shows a low charging-discharging overpotential of 1.50 V with a stable performance of over 200 cycles at current density of 1000 mA g, shedding light on the design and synthesis of novel multifunctional electrocatalysts for energy conversions.
通过水热合成的MoSe@C与CoO相结合的简便方法制备了CoO-MoSe@C纳米复合材料。在催化析氢反应和析氧反应时，该催化剂分别具有144 mV和360 mV的低过电位（均在10 mA cm电流密度下）。它还可以用作锂氧电池的阴极，该器件在1000 mA g电流密度下显示出1.50 V的低充放电过电位，具有超过200次循环的稳定性能，为用于能量转换的新型多功能电催化剂的设计和合成提供了思路。
