Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction

The construction of two-dimensional (2D) ultrathin nanosheets is considered as a promising strategy for enhancing electrochemical performance, owing to their large surface area and fast electron transport. In this study, ultrathin few-layer NiPS3 nanosheets are obtained and systematically investigat...

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Main Authors: Dangol, Raksha, Dai, Zhengfei, Chaturvedi, Apoorva, Zheng, Yun, Zhang, Yu, Dinh, Khang Ngoc, Li, Bing, Zong, Yun, Yan, Qingyu
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/141175
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1411752020-06-04T09:11:39Z Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction Dangol, Raksha Dai, Zhengfei Chaturvedi, Apoorva Zheng, Yun Zhang, Yu Dinh, Khang Ngoc Li, Bing Zong, Yun Yan, Qingyu School of Materials Science and Engineering Engineering::Materials NiPS3 Nanosheets Li-ion Storage The construction of two-dimensional (2D) ultrathin nanosheets is considered as a promising strategy for enhancing electrochemical performance, owing to their large surface area and fast electron transport. In this study, ultrathin few-layer NiPS3 nanosheets are obtained and systematically investigated by high-yield liquid phase exfoliation from their bulk layered crystals, and are exploited as anodes for lithium ion batteries (LIBs) and electrocatalysts for oxygen evolution reaction (OER). When evaluated as an anode for LIBs, NiPS3 nanosheets show excellent electrochemical properties in terms of stable cycling performance and rate capabilities. A stable reversible capacity of 796.2 mA h g−1 is delivered after the 150th cycle at a current density of 100 mA g−1. As for the OER, the exfoliated few-layer NiPS3 nanosheets have demonstrated excellent electrocatalytic performance, such as a low overpotential of 301 mV at a current density of 10 mA cm−2, a small Tafel slope of 43 mV dec−1, and an outstanding long-term durability. This work is expected to make a contribution to develop next generation high-performance electrochemically active materials for catalysts and batteries. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) 2020-06-04T09:11:39Z 2020-06-04T09:11:39Z 2018 Journal Article Dangol, R., Dai, Z., Chaturvedi, A., Zheng, Y., Zhang, Y., Dinh, K. N., . . . Yan, Q. (2018). Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction. Nanoscale, 10(10), 4890-4896. doi:10.1039/c7nr08745d 2040-3364 https://hdl.handle.net/10356/141175 10.1039/c7nr08745d 29480309 2-s2.0-85043503277 10 10 4890 4896 en Nanoscale © 2018 The Royal Society of Chemistry. All rights reserved.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic Engineering::Materials
NiPS3 Nanosheets
Li-ion Storage
spellingShingle Engineering::Materials
NiPS3 Nanosheets
Li-ion Storage
Dangol, Raksha
Dai, Zhengfei
Chaturvedi, Apoorva
Zheng, Yun
Zhang, Yu
Dinh, Khang Ngoc
Li, Bing
Zong, Yun
Yan, Qingyu
Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction
description The construction of two-dimensional (2D) ultrathin nanosheets is considered as a promising strategy for enhancing electrochemical performance, owing to their large surface area and fast electron transport. In this study, ultrathin few-layer NiPS3 nanosheets are obtained and systematically investigated by high-yield liquid phase exfoliation from their bulk layered crystals, and are exploited as anodes for lithium ion batteries (LIBs) and electrocatalysts for oxygen evolution reaction (OER). When evaluated as an anode for LIBs, NiPS3 nanosheets show excellent electrochemical properties in terms of stable cycling performance and rate capabilities. A stable reversible capacity of 796.2 mA h g−1 is delivered after the 150th cycle at a current density of 100 mA g−1. As for the OER, the exfoliated few-layer NiPS3 nanosheets have demonstrated excellent electrocatalytic performance, such as a low overpotential of 301 mV at a current density of 10 mA cm−2, a small Tafel slope of 43 mV dec−1, and an outstanding long-term durability. This work is expected to make a contribution to develop next generation high-performance electrochemically active materials for catalysts and batteries.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Dangol, Raksha
Dai, Zhengfei
Chaturvedi, Apoorva
Zheng, Yun
Zhang, Yu
Dinh, Khang Ngoc
Li, Bing
Zong, Yun
Yan, Qingyu
format Article
author Dangol, Raksha
Dai, Zhengfei
Chaturvedi, Apoorva
Zheng, Yun
Zhang, Yu
Dinh, Khang Ngoc
Li, Bing
Zong, Yun
Yan, Qingyu
author_sort Dangol, Raksha
title Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction
title_short Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction
title_full Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction
title_fullStr Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction
title_full_unstemmed Few-layer NiPS3 nanosheets as bifunctional materials for Li-ion storage and oxygen evolution reaction
title_sort few-layer nips3 nanosheets as bifunctional materials for li-ion storage and oxygen evolution reaction
publishDate 2020
url https://hdl.handle.net/10356/141175
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