Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries

Interface modification is an effective and promising route for developing functional electrocatalysts. However, researchers have not created a reliable method to optimize the interfaces of components existing in electrocatalysts, although it is very crucial for the technological development of high-...

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Main Authors: Li, Yang, Zhou, Wei, Dong, Juncai, Luo, Yun, An, Pengfei, Liu, Juan, Wu, Xin, Xu, Guilan, Zhang, Huabin, Zhang, Jian
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2020
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Online Access:https://hdl.handle.net/10356/141058
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1410582020-06-03T09:20:16Z Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries Li, Yang Zhou, Wei Dong, Juncai Luo, Yun An, Pengfei Liu, Juan Wu, Xin Xu, Guilan Zhang, Huabin Zhang, Jian School of Chemical and Biomedical Engineering Engineering::Chemical engineering Co9S8 Nanoparticles Zinc–air Batteries Interface modification is an effective and promising route for developing functional electrocatalysts. However, researchers have not created a reliable method to optimize the interfaces of components existing in electrocatalysts, although it is very crucial for the technological development of high-performance electrodes. Here, we develop a strategy aiming at the in situ anchorage of Co9S8 nanoparticles into a nitrogen (N), sulfur (S) co-implanted three-dimensional carbon matrix (Co9S8@NSCM) as a highly active and durable nonprecious metal electrocatalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline medium. This strategy offers an opportunity to optimize the interface interaction and affords high activity for the ORR and OER in terms of low overpotentials and high current intensities. In addition, by confining Co9S8 nanoparticles into a N,S-doped carbon matrix, corrosion and aggregation can be effectively prevented, and thus the catalyst exhibits nearly unfading ORR catalytic performance after 100 000 s testing, a low discharge–charge voltage gap (0.81 V) and a long cycle life (up to 840 cycles) in Zn–air batteries. The present work highlights potentially powerful interface engineering for designing multi-component heterostructures with advanced performances in oxygen electrochemistry and related energy conversion. 2020-06-03T09:20:16Z 2020-06-03T09:20:16Z 2017 Journal Article Li, Y., Zhou, W., Dong, J., Luo, Y., An, P., Liu, J., . . . Zhang, J. (2018). Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries. Nanoscale, 10(5), 2649-2657. doi:10.1039/c7nr07235j 2040-3364 https://hdl.handle.net/10356/141058 10.1039/c7nr07235j 29355860 2-s2.0-85041486368 5 10 2649 2657 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::Chemical engineering
Co9S8 Nanoparticles
Zinc–air Batteries
spellingShingle Engineering::Chemical engineering
Co9S8 Nanoparticles
Zinc–air Batteries
Li, Yang
Zhou, Wei
Dong, Juncai
Luo, Yun
An, Pengfei
Liu, Juan
Wu, Xin
Xu, Guilan
Zhang, Huabin
Zhang, Jian
Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
description Interface modification is an effective and promising route for developing functional electrocatalysts. However, researchers have not created a reliable method to optimize the interfaces of components existing in electrocatalysts, although it is very crucial for the technological development of high-performance electrodes. Here, we develop a strategy aiming at the in situ anchorage of Co9S8 nanoparticles into a nitrogen (N), sulfur (S) co-implanted three-dimensional carbon matrix (Co9S8@NSCM) as a highly active and durable nonprecious metal electrocatalyst for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) in alkaline medium. This strategy offers an opportunity to optimize the interface interaction and affords high activity for the ORR and OER in terms of low overpotentials and high current intensities. In addition, by confining Co9S8 nanoparticles into a N,S-doped carbon matrix, corrosion and aggregation can be effectively prevented, and thus the catalyst exhibits nearly unfading ORR catalytic performance after 100 000 s testing, a low discharge–charge voltage gap (0.81 V) and a long cycle life (up to 840 cycles) in Zn–air batteries. The present work highlights potentially powerful interface engineering for designing multi-component heterostructures with advanced performances in oxygen electrochemistry and related energy conversion.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Li, Yang
Zhou, Wei
Dong, Juncai
Luo, Yun
An, Pengfei
Liu, Juan
Wu, Xin
Xu, Guilan
Zhang, Huabin
Zhang, Jian
format Article
author Li, Yang
Zhou, Wei
Dong, Juncai
Luo, Yun
An, Pengfei
Liu, Juan
Wu, Xin
Xu, Guilan
Zhang, Huabin
Zhang, Jian
author_sort Li, Yang
title Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
title_short Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
title_full Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
title_fullStr Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
title_full_unstemmed Interface engineered in situ anchoring of Co9S8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
title_sort interface engineered in situ anchoring of co9s8 nanoparticles into a multiple doped carbon matrix : highly efficient zinc – air batteries
publishDate 2020
url https://hdl.handle.net/10356/141058
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