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Title: Ordered distributed nickel sulfide nanoparticles across graphite nanosheets for efficient oxygen evolution reaction electrocatalyst
Authors: Ma, Mingbo
Yang, Guang
Wang, Hongjie
Lu, Yu
Zhang, Bowei
Cao, Xun
Peng, Dongdong
Du, Xianfeng
Liu, Yunhong
Huang, Yizhong
Keywords: Engineering::Materials
Issue Date: 2018
Source: Ma, M., Yang, G., Wang, H., Lu, Y., Zhang, B., Cao, X., Peng, D., Du, X., Liu, Y. & Huang, Y. (2018). Ordered distributed nickel sulfide nanoparticles across graphite nanosheets for efficient oxygen evolution reaction electrocatalyst. International Journal of Hydrogen Energy, 44(3), 1544-1554.
Project: M4011959
Journal: International Journal of Hydrogen Energy
Abstract: Low-cost and earth-abundant nickel chalcogenides with versatilities in electrocatalysis, conversion and storage of energy are hindered in practical application due to the low electrical conductivity and small specific surface area. In the present work, we report a simple preparation of 2D nanocomposites of NiSx (5 nm) uniformly embedded in several layered graphite (NiSx@graphite) through the sulfidation of nickel naphtalenedicarboxylic acid framework nanosheets (∼9 nm). The obtained NiSx@graphite nanosheet composites are used for oxygen evolution reaction (OER) catalysis. Electrochemical studies reveal that their OER activities under strongly alkaline conditions are ranked in the order of Ni9S8@graphite > NiS@graphite > NiS2@graphite. The outstanding OER performance offered by Ni9S8@graphite owes to the synergistic effects of large specific surface area and the special structure between nickel sulfide and graphite layer, and the intrinsic large TOFs and the optimal adsorption energy of Ni9S8. Furthermore, Ni9S8@graphite as an anode material used for lithium ion batteries (LIBs) also shows a high specific capacity with competitive rate performance. Such excellent performance and low price render nickel chalcogenides a promising candidate for the future OER catalyst and LIBs application.
ISSN: 0360-3199
DOI: 10.1016/j.ijhydene.2018.11.176
Rights: © 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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