文献类型：期刊文献

英文题名：Degradation-resistant waste plastics derived carbon supported MoS2 electrocatalyst: high-nitrogen dependent activity for hydrogen evolution reaction

作者：Zhao, Ying[1];Zhao, Jia[1];Li, Qing[1];Gu, Chuantao[3];Zhang, Boying[1];Liu, Caihong[1];Li, Zheng[1];Hu, Shuozhen[2];Qiao, Shanlin[1]

机构：[1]Hebei Univ Sci & Technol, Coll Chem & Pharmaceut Engn, Shijiazhuang 050018, Hebei, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[3]Qingdao Univ, Coll Mat Sci & Engn, Qingdao 266071, Peoples R China

年份：2020

卷号：331

外文期刊名：ELECTROCHIMICA ACTA

收录：;EI(收录号：20195007802907);WOS:【SCI-EXPANDED(收录号:WOS:000506011100019)】；

基金：Thanks to the help of Prof. Yong Sheng, Zhao from the institute of chemistry, Chinese academy of sciences. This work was financially supported by National Natural Science Foundation of China (No. 21805068), National Natural Science Foundation of China (No. 21807062), Key Basic Research Program of Hebei Province (No. 18964401D), the Shanghai Pujiang Program (No. 18PJ1402000) and the Fundamental Research Funds for the Central Universities (No. 222201814008).

语种：英文

外文关键词：Degradation-resistant waste plastics derived carbon; High nitrogen content; Pyridinic-N; MoS2 nanosheets; Hydrogen evolution reaction

摘要：It is still a great challenge to design a simple, low-cost and highly active catalyst for the industrial production of hydrogen from water electrolysis. Herein, we report a synthesis of molybdenum disulphide (MoS2) supported on carbon supports with high concentration of doped-nitrogen derived from large scale industrial waste plastics, i.e. melamine (CWM) and polyurethane (CWPU), by a simple hydrothermal reaction. Few layers of MoS2 nanosheets with high catalytic activity can be very-well dispersed on CWM and CWPU. The supports with high-nitrogen content can not only greatly improve the conductivity of supported MoS2 nanosheets, but also provide additional active sites with the presence of high pyridinic-N content. The synergistic effects between the MoS2 nanosheet and CWM and CWPU contribute to high hydrogen evolution reaction (HER) activity. As the concentration of doped-N increases, the HER performance of MoS2-based catalysts is improved. MoS2/CWM 1:1 with the highest nitrogen content (11.1 wt %) shows the lowest overpotential of 56 mV at 10 mA cm(-2), the smallest Tafel slope of 36.6 mV.dec(-1), and the highest exchange current density of 0.35 mA cm(-2) in acidic condition, which are comparable to that of commercial 20% Pt/C. (c) 2019 Elsevier Ltd. All rights reserved.