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A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials

Yinglin Yan, Yiqi Wei, Chao Zhao, Mangmang Shi, Liping Chen, Chaojiang Fan, Matt Carnie Orcid Logo, Rong Yang, Yunhua Xu

Journal of Solid State Chemistry, Volume: 269, Pages: 24 - 29

Swansea University Author: Matt Carnie Orcid Logo

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DOI (Published version): 10.1016/j.jssc.2018.08.040

Abstract

CaCO3-templating is a strategy for synthesizing porous carbon (PC) materials that has been widely used for decades. In this work, a modified template-removal process, soaking the pyrolysis product by hydrochloric acid solution, was proposed to optimize the graphitization degree, morphology, specific...

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Published in: Journal of Solid State Chemistry
ISSN: 0022-4596
Published: 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa44553
first_indexed 2018-09-24T12:58:45Z
last_indexed 2018-10-10T13:37:23Z
id cronfa44553
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spelling 2018-10-10T12:21:44.3082271 v2 44553 2018-09-24 A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials 73b367694366a646b90bb15db32bb8c0 0000-0002-4232-1967 Matt Carnie Matt Carnie true false 2018-09-24 EAAS CaCO3-templating is a strategy for synthesizing porous carbon (PC) materials that has been widely used for decades. In this work, a modified template-removal process, soaking the pyrolysis product by hydrochloric acid solution, was proposed to optimize the graphitization degree, morphology, specific area, and pore size distribution of the products. The tests results demonstrated that the PC product obtained by a modified template method (M-TC) exhibited a transformation in microstructure such as an enhanced specific surface area and more plentiful hierarchical pores as compared with those PC materials obtained by conventional strategy. The potential formation mechanisms are proposed as well. When the M-TC sample loaded sulfur was applied as a cathode material for a Li-S battery, it delivered a high initial discharge capacity (1475 mAh g−1) and a stable discharge capacity (874 mAh g−1) after 50 cycles at 0.1 C. The modified template-removal strategy could bring inspirations on synthesis design and extend potential applications of commercial PC materials. Journal Article Journal of Solid State Chemistry 269 24 29 0022-4596 Lithium-sulfur battery, Cathode, Porous carbon, Template, Hierarchical porosity 31 1 2019 2019-01-31 10.1016/j.jssc.2018.08.040 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2018-10-10T12:21:44.3082271 2018-09-24T09:30:14.1147181 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Yinglin Yan 1 Yiqi Wei 2 Chao Zhao 3 Mangmang Shi 4 Liping Chen 5 Chaojiang Fan 6 Matt Carnie 0000-0002-4232-1967 7 Rong Yang 8 Yunhua Xu 9
title A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
spellingShingle A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
Matt Carnie
title_short A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
title_full A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
title_fullStr A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
title_full_unstemmed A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
title_sort A modified template-removal process to improve the specific surface area and hierarchical porosity of carbon materials
author_id_str_mv 73b367694366a646b90bb15db32bb8c0
author_id_fullname_str_mv 73b367694366a646b90bb15db32bb8c0_***_Matt Carnie
author Matt Carnie
author2 Yinglin Yan
Yiqi Wei
Chao Zhao
Mangmang Shi
Liping Chen
Chaojiang Fan
Matt Carnie
Rong Yang
Yunhua Xu
format Journal article
container_title Journal of Solid State Chemistry
container_volume 269
container_start_page 24
publishDate 2019
institution Swansea University
issn 0022-4596
doi_str_mv 10.1016/j.jssc.2018.08.040
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 0
active_str 0
description CaCO3-templating is a strategy for synthesizing porous carbon (PC) materials that has been widely used for decades. In this work, a modified template-removal process, soaking the pyrolysis product by hydrochloric acid solution, was proposed to optimize the graphitization degree, morphology, specific area, and pore size distribution of the products. The tests results demonstrated that the PC product obtained by a modified template method (M-TC) exhibited a transformation in microstructure such as an enhanced specific surface area and more plentiful hierarchical pores as compared with those PC materials obtained by conventional strategy. The potential formation mechanisms are proposed as well. When the M-TC sample loaded sulfur was applied as a cathode material for a Li-S battery, it delivered a high initial discharge capacity (1475 mAh g−1) and a stable discharge capacity (874 mAh g−1) after 50 cycles at 0.1 C. The modified template-removal strategy could bring inspirations on synthesis design and extend potential applications of commercial PC materials.
published_date 2019-01-31T04:34:39Z
_version_ 1822556452756127744
score 11.048756

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