UM
3D heterostructured pure and N-Doped Ni3S2/VS2 nanosheets for high efficient overall water splitting
Zhong, Xiongwei; Tang, Jun; Wang, Jingwei; Shao, Mengmeng; Chai, Jianwei; Wang, Shuangpeng; Yang, Ming; Yang, Ye; Wang, Ning; Wang, Shijie; Xu, Baomin; Pan, Hui
2018-04-10
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume269Pages:55-61
AbstractExploring earth-abundant electrocatalysts with high activity and low-cost for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital to energy harvesting and storage, such as fuel cell and effective overall water splitting. Herein, novel heterostructures (Ni3S2/VS2) without nitrogen (N) and with N doping are reported as superior electrocatalysts for the OER and HER, respectively. The heterostructure without doping shows enhanced OER performance with an extremely low overpotential (227mV at 10 mA/cm(2)) due to increased active sites and fantastic interfaces as well as unique structure. Moreover, N-doped Ni3S2/VS2 (N-Ni3S2/VS2) shows high electrocatalytic HER performance with a low HER overpotential (151 mV at 10 mA/cm(2)), because the N-doping greatly improves conductivity and increases large amounts of catalytic active sites. Finally, we construct a two-electrode electrolyzer system (Ni3S2/VS2//N-Ni3S2/VS2) and it achieves a current density of 10 mA/cm(2) at a low cell voltage of 1.648 V. Our findings demonstrate that structure design and doping can effectively improve the catalytic activities of nanomaterials for OER and HER. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordHeterostructure Vanadium sulfide Nickel sulfide N-doping Over-all water splitting
DOI10.1016/j.electacta.2018.02.131
URLView the original
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000428806700007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
The Source to ArticleWOS
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionUniversity of Macau
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GB/T 7714
Zhong, Xiongwei,Tang, Jun,Wang, Jingwei,et al. 3D heterostructured pure and N-Doped Ni3S2/VS2 nanosheets for high efficient overall water splitting[J]. ELECTROCHIMICA ACTA,2018,269:55-61.
APA Zhong, Xiongwei.,Tang, Jun.,Wang, Jingwei.,Shao, Mengmeng.,Chai, Jianwei.,...&Pan, Hui.(2018).3D heterostructured pure and N-Doped Ni3S2/VS2 nanosheets for high efficient overall water splitting.ELECTROCHIMICA ACTA,269,55-61.
MLA Zhong, Xiongwei,et al."3D heterostructured pure and N-Doped Ni3S2/VS2 nanosheets for high efficient overall water splitting".ELECTROCHIMICA ACTA 269(2018):55-61.
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