期刊
SUSTAINABLE ENERGY & FUELS
卷 4, 期 10, 页码 5036-5041出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0se00864h
关键词
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资金
- Taishan Scholar Program of Shandong Province, China [ts201712045]
- Key Research and Development Program of Shandong Province [2018GGX104001]
- Natural Science Foundation of Shandong Province of China [ZR2017MB054, ZR2019BB002]
- Doctoral Found of QUST [0100229001, 010022873]
Developing effective bifunctional electrocatalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) has a pivotal role in large-scale application of hydrogen energy. Herein, a facile and scalable strategy is developed to preparein situsupported MoS(2)coupled with CoB with Se doping on carbon cloth (MoS2/CoB-Se/CC)viaa solvothermal process and subsequent selenylation treatment. For the HER, MoS2/CoB-Se/CC delivers the smallest overpotential (93 mV) to reach 10 mA cm(-2)compared to MoS2/CoB/CC (158 mV), MoS2/CC (234 mV), and CoB/CC (410 mV) in 1 M KOH, indicating that the coupling effects of MoS(2)and CoB with Se doping are responsible for boosting the catalytic performance. Impressively, the designed MoS2/CoB-Se/CC also presents outstanding catalytic activity for the OER, with only a small overpotential of 270 mV needed to drive 10 mA cm(-2). Moreover, the developed MoS2/CoB-Se/CC used as both anode and cathode also shows remarkable catalytic performance for overall water-splitting, with a small cell voltage of 1.58 V needed to drive 10 mA cm(-2). This work provides an efficient and promising protocol to design bifunctional electrocatalysts for overall water-splitting.
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