@article{65ee275e06a84089865336605cbf8c98,
title = "3D heterostructured pure and N-Doped Ni3S2/VS2 nanosheets for high efficient overall water splitting",
abstract = "Exploring 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 (227 mV at 10 mA/cm2) 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/cm2), 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/cm2 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.",
keywords = "Heterostructure, N-doping, Nickel sulfide, Over-all water splitting, Vanadium sulfide",
author = "Xiongwei Zhong and Jun Tang and Jingwei Wang and Mengmeng Shao and Jianwei Chai and Shuangpeng Wang and Ming Yang and Ye Yang and Ning Wang and Shijie Wang and Baomin Xu and Hui Pan",
note = "Funding Information: H. Pan acknowledges the University of Macau for financial support and the Science and Technology Development Fund from Macau SAR ( FDCT-068/2014/A2 , FDCT-132/2014/A3 and FDCT-110/2014/SB ) and Multi-Year Research Grants ( MYRG2015-00157-FST and MYRG2017-00027-FST ) from Research & Development Office at University of Macau. Prof. B.M. Xu at SUSTech thanks the Fundamental Research (Discipline Arrangement) project funding from Shenzhen Science and Technology Innovation Committee (Grant No. JCYJ20170412154554048 ), the Peacock Team Project funding from Shenzhen Science and Technology Innovation Committee (Grant No. KQTD2015033110182370 ), and the National Key Research and Development Project funding from the Ministry of Science and Technology of China (Grants Nos. 2016YFA0202400 and 2016YFA0202404 ). Appendix A Funding Information: H. Pan acknowledges the University of Macau for financial support and the Science and Technology Development Fund from Macau SAR (FDCT-068/2014/A2, FDCT-132/2014/A3 and FDCT-110/2014/SB) and Multi-Year Research Grants (MYRG2015-00157-FST and MYRG2017-00027-FST) from Research & Development Office at University of Macau. Prof. B.M. Xu at SUSTech thanks the Fundamental Research (Discipline Arrangement) project funding from Shenzhen Science and Technology Innovation Committee (Grant No. JCYJ20170412154554048), the Peacock Team Project funding from Shenzhen Science and Technology Innovation Committee (Grant No. KQTD2015033110182370), and the National Key Research and Development Project funding from the Ministry of Science and Technology of China (Grants Nos. 2016YFA0202400 and 2016YFA0202404). Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",
year = "2018",
month = apr,
day = "10",
doi = "10.1016/j.electacta.2018.02.131",
language = "English",
volume = "269",
pages = "55--61",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Ltd",
}
