Journal
CHEMICAL COMMUNICATIONS
Volume 57, Issue 33, Pages 4019-4022Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc00461a
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Funding
- Natural Science Foundation for Colleges and Universities in Jiangsu Province [20KJA150005]
- Advanced Catalysis and Green Manufacturing Collaborative Innovation Center
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After in situ selenylation, NiMoO4 was partially converted to NiSe2 and MoSe2, resulting in NiMoO4/NiSe2/MoSe2 nanowires with significantly higher specific capacitance and retention rate. The superior supercapacitive performance can be attributed to the heterointerfaces, defects, and increased electrical conductivity after selenylation of NiMoO4.
After in situ selenylation, hydrothermally synthesized NiMoO4 was partially converted to NiSe2 and MoSe2, and the obtained NiMoO4/NiSe2/MoSe2 nanowires were used as a supercapacitor electrode material. The specific capacitance of the nanowired NiMoO4/NiSe2/MoSe2 was significantly higher than that of NiMoO4 at a current density of 1 A g(-1) (955 vs. 489 F g(-1)). NiMoO4/NiSe2/MoSe2 also exhibited a high capacitance retention of 86.1% after 5000 cycles at 10 A g(-1). The high supercapacitive performance of NiMoO4/NiSe2/MoSe2 can be ascribed to the obvious heterointerfaces, rich defects and remarkably increased electrical conductivity after in situ selenylation of NiMoO4.
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