@article{ed2063df575f415abdb3e50da575a6d3,
title = "Efficient coupling of a hierarchical V2O5@Ni3S2 hybrid nanoarray for pseudocapacitors and hydrogen production",
abstract = "Hierarchical materials are a favourite for energy storage/harvesting technologies, such as supercapacitors and electrically-driven hydrogen production. In this work, we report a robust and highly active nanomaterial for pseudocapacitors and hydrogen production by growing vanadium pentoxide on the surface of nickel sulfide (denoted as V2O5@Ni3S2). V2O5@Ni3S2 shows a capacitance of up to 854 F g-1 at a current density of 1 A g-1 and good rate capability. The capacitance can retain ca. 60% of the initial specific capacitance even after 1000 cycles at a current density of 1 A g-1. For the hydrogen evolution reaction (HER), the overpotential of V2O5@Ni3S2 is around 95 mV at 10 mA cm-2. The excellent electrochemical performance of the V2O5@Ni3S2 hybrid is attributed to the synergistic effect between vanadium pentoxide and nickel sulfide for pseudocapacitors, and the V2O5@Ni3S2 interface and V-S active bonding in the hierarchical structure for the HER. This work demonstrates an effective structure design for supercapacitors with high energy density and for efficient hydrogen production with high catalytic activity by incorporating metal oxide with metal sulfide.",
author = "Xiongwei Zhong and Linfei Zhang and Jun Tang and Jianwei Chai and Jincheng Xu and Lujie Cao and Mingyang Yang and Ming Yang and Weiguang Kong and Shijie Wang and Hua Cheng and Zhouguang Lu and Chun Cheng and Baomin Xu and Hui Pan",
note = "Funding Information: H. Pan acknowledges the University of Macau for nancial 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 (MYRG2015-00017-FST and MYRG2017-00027-FST) from the Research & Development Office at the University of Macau. Prof. B. M. Xu at SUSTech thanks the Southern University of Science and Technology (Grants No. 25/Y01256112 and 25/Y01256212) for start-up funding, 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 No. 2016YFA0202400 and 2016YFA0202404). Prof. Z. G. Lu thanks the National Natural Science Foundation of China (No. 21671096, and No. 21603094), the Shenzhen Key Laboratory Project (No. ZDSYS201603311013489), and the Natural Science Foundation of Shenzhen (No. JCYJ20150630145302231, JCYJ20150331101823677). Prof. C. Cheng and Mr L. F. Zhang at SUSTech thank the National Natural Science Foundation of China (Grants No. 51402147 and 51406075), the Training Program for Outstanding Young Teachers at Higher Education Institutions of Guangdong Province (Grant YQ2015151), the Guangdong Natural Science Funds for Distinguished Young Scholars (Grant No. 2015A030306044), the Guangdong-Hong Kong joint innovation project (Grant No. 2016A050503012), the Foundation of Shenzhen Science and Technology Innovation Committee (Grant No. JCYJ20150331101823695) and the Shenzhen Peacock Team Plan (Grant No. KQTD20150331 10182370). X. W. Zhong and L. F. Zhang contributed equally to this work. Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",
year = "2017",
doi = "10.1039/c7ta04755j",
language = "English",
volume = "5",
pages = "17954--17962",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "Royal Society of Chemistry",
number = "34",
}