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-...
Saved in:
Main Authors: | , , , , , , , , , |
---|---|
Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/141058 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-141058 |
---|---|
record_format |
dspace |
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 |
_version_ |
1681057312705347584 |