期刊
APPLIED SURFACE SCIENCE
卷 491, 期 -, 页码 799-806出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2019.05.313
关键词
Mn doped CdS; Cubic MnS; Amorphous Ni3S2; Photocatalytic hydrogen evolution; Electrocatalytic OER
类别
资金
- National Natural Science Foundation of China [51672144, 51572137, 51502149, 51702181]
- Natural Science Foundation of Shandong Province [ZR2016EMB25, ZR2017PEM006, ZR201702210482, ZR2017BB013]
- Higher Educational Science and Technology Program of Shandong Province [J16LA10, J17KA014]
- Application Foundation Research Program of Qingdao [15-9-1-28-jch]
- Taishan Scholars Program of Shandong Province [ts201511034]
- Overseas Taishan Scholars Program
Non-noble metal catalysts for photo/electrocatalytic water splitting are quite feasible for solving the problems of growing energy demand and environmental pollution. In this paper, noble-metal free Mn-Cd-S@amorphous-Ni3S2 hybrid catalyst (MCS@a-Ni3S2) with bifunctionality of photocatalytic hydrogen evolution and electrocatalytic OER is designed and prepared by simple hydrothermal method. The characterization results show that Mn-Cd-S was composed of cubic manganese sulfide and manganese doped cadmium sulfide, and amorphous Ni3S2 coating on the surface of Mn-Cd-S. The resultant Mn-Cd-S@amorphpus-Ni3S2 catalyst presents good stability and a high photocatalytic H-2 evolution rate of 12,069.27 mu molh(-1) g(-1). Besides, both Mn-Cd-S and Mn-CdS@amorphpus-Ni3S2 show good OER property with overpotential of 333 mV. Mn-Cd-S@amorphpus-Ni3S2 shows more favorable kinetics than that of Mn-Cd-S for OER. Moreover, the mechanism of the enhanced photo/electrocatalytic performance is investigated in detail. This work provides references for developing the catalysts with both photocatalytic and electrocatalytic properties.
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