Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell

The dissolution of intermediate lithium polysulfide within the electrolyte presents a significant challenge in lithium-sulfur batteries (Li–S). While an increasing number of recent studies on Li–S are focused on using activated carbon (AC) cathodes due to their strong affinity to lithium polysulfide...

Full description

Bibliographic Details
Published in:Journal of Porous Materials
Main Author: Md Zaini M.S.; Al-Junid S.A.M.; Syed-Hassan S.S.A.
Format: Article
Language:English
Published: Springer 2024
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183690450&doi=10.1007%2fs10934-024-01556-1&partnerID=40&md5=9dd66d223bf234a9aa95d84f288f247f
id 2-s2.0-85183690450
spelling 2-s2.0-85183690450
Md Zaini M.S.; Al-Junid S.A.M.; Syed-Hassan S.S.A.
Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
2024
Journal of Porous Materials
31
3
10.1007/s10934-024-01556-1
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183690450&doi=10.1007%2fs10934-024-01556-1&partnerID=40&md5=9dd66d223bf234a9aa95d84f288f247f
The dissolution of intermediate lithium polysulfide within the electrolyte presents a significant challenge in lithium-sulfur batteries (Li–S). While an increasing number of recent studies on Li–S are focused on using activated carbon (AC) cathodes due to their strong affinity to lithium polysulfide, there still has been limited investigation into the quantitative adsorption of lithium polysulfide across various ratios of urea doping with AC. This study thus aims to quantitatively study the polysulfide adsorption capabilities of biomass-based carbon material activated by KOH and doped with urea. The correlation between N-doped surface morphology and lithium polysulfide in the AC was thoroughly investigated. The results indicate that increasing the urea ratio improves AC’s porosity and enhances the lithium polysulfide adsorption. AC prepared with the highest biomass: urea ratio of 1:3 in this study exhibits the most remarkable adsorption uptake capacity of 12.94 mmol/g. This excellent adsorption performance is attributed to the synergistic effect of well-developed porosity (BET surface area of 1902.99 cm2/g and a pore volume of 0.92 cm3/g) and high nitrogen functionalization on the carbon surface, contributing to the formation of physical and chemical bonds between polarized lithium polysulfide and the carbon matrix that enhances the adsorption process. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
Springer
13802224
English
Article

author Md Zaini M.S.; Al-Junid S.A.M.; Syed-Hassan S.S.A.
spellingShingle Md Zaini M.S.; Al-Junid S.A.M.; Syed-Hassan S.S.A.
Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
author_facet Md Zaini M.S.; Al-Junid S.A.M.; Syed-Hassan S.S.A.
author_sort Md Zaini M.S.; Al-Junid S.A.M.; Syed-Hassan S.S.A.
title Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
title_short Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
title_full Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
title_fullStr Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
title_full_unstemmed Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
title_sort Effects of nitrogen doping on lithium polysulfide anchoring by activated carbon derived from palm kernel shell
publishDate 2024
container_title Journal of Porous Materials
container_volume 31
container_issue 3
doi_str_mv 10.1007/s10934-024-01556-1
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85183690450&doi=10.1007%2fs10934-024-01556-1&partnerID=40&md5=9dd66d223bf234a9aa95d84f288f247f
description The dissolution of intermediate lithium polysulfide within the electrolyte presents a significant challenge in lithium-sulfur batteries (Li–S). While an increasing number of recent studies on Li–S are focused on using activated carbon (AC) cathodes due to their strong affinity to lithium polysulfide, there still has been limited investigation into the quantitative adsorption of lithium polysulfide across various ratios of urea doping with AC. This study thus aims to quantitatively study the polysulfide adsorption capabilities of biomass-based carbon material activated by KOH and doped with urea. The correlation between N-doped surface morphology and lithium polysulfide in the AC was thoroughly investigated. The results indicate that increasing the urea ratio improves AC’s porosity and enhances the lithium polysulfide adsorption. AC prepared with the highest biomass: urea ratio of 1:3 in this study exhibits the most remarkable adsorption uptake capacity of 12.94 mmol/g. This excellent adsorption performance is attributed to the synergistic effect of well-developed porosity (BET surface area of 1902.99 cm2/g and a pore volume of 0.92 cm3/g) and high nitrogen functionalization on the carbon surface, contributing to the formation of physical and chemical bonds between polarized lithium polysulfide and the carbon matrix that enhances the adsorption process. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.
publisher Springer
issn 13802224
language English
format Article
accesstype
record_format scopus
collection Scopus
_version_ 1814778499645308928