No Cover Image

Journal article 528 views 90 downloads

Insight into Sulfur Confined in Ultramicroporous Carbon

M. Helen, Thomas Diemant, Stefan Schindler, R. Jürgen Behm, Michael Danzer, Ute Kaiser, Maximilian Fichtner, M. Anji Reddy, Anji Munnangi Orcid Logo

ACS Omega, Volume: 3, Issue: 9, Pages: 11290 - 11299

Swansea University Author: Anji Munnangi Orcid Logo

Check full text

DOI (Published version): 10.1021/acsomega.8b01681

Abstract

Here, we provide a deeper insight into the state of sulfur confined in ultramicroporous carbon (UMC) and clarify its electrochemical reaction mechanism with lithium by corroborating the results obtained using various experimental techniques, such as X-ray photoelectron spectroscopy, electron energy...

Full description

Published in: ACS Omega
ISSN: 2470-1343 2470-1343
Published: 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa51586
Tags: Add Tag
No Tags, Be the first to tag this record!
first_indexed 2019-08-27T15:31:00Z
last_indexed 2019-09-03T14:52:01Z
id cronfa51586
recordtype SURis
fullrecord <?xml version="1.0"?><rfc1807><datestamp>2019-09-03T11:48:09.1339004</datestamp><bib-version>v2</bib-version><id>51586</id><entry>2019-08-27</entry><title>Insight into Sulfur Confined in Ultramicroporous Carbon</title><swanseaauthors><author><sid>3ed0b4f2ff4fb9e87c7a73e7a3c39da7</sid><ORCID>0000-0001-9101-0252</ORCID><firstname>Anji</firstname><surname>Munnangi</surname><name>Anji Munnangi</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2019-08-27</date><deptcode>MTLS</deptcode><abstract>Here, we provide a deeper insight into the state of sulfur confined in ultramicroporous carbon (UMC) and clarify its electrochemical reaction mechanism with lithium by corroborating the results obtained using various experimental techniques, such as X-ray photoelectron spectroscopy, electron energy loss spectroscopy, in situ Raman spectroscopy, and in situ electrochemical impedance spectroscopy. In combination, these results indicate that sulfur in UMC exists as linear polymeric sulfur rather than smaller allotropes. The electrochemical reactivity of lithium with sulfur confined in UMC (pore size &#x2264;0.7 nm) is different from that of sulfur confined in microporous carbon (&#x2264;2 nm, or ultramicroporous carbon containing significant amount of micropores) and mesoporous carbon (&gt;2 nm). The observed quasi-solid-state reaction of lithium with sulfur in UMC with a single voltage plateau during the discharge/charge process is due to the effective separation of solvent molecules from the active material. The size of carbon pores plays a vital role in determining the reaction path of lithium with sulfur confined in UMC.</abstract><type>Journal Article</type><journal>ACS Omega</journal><volume>3</volume><journalNumber>9</journalNumber><paginationStart>11290</paginationStart><paginationEnd>11299</paginationEnd><publisher/><issnPrint>2470-1343</issnPrint><issnElectronic>2470-1343</issnElectronic><keywords/><publishedDay>30</publishedDay><publishedMonth>9</publishedMonth><publishedYear>2018</publishedYear><publishedDate>2018-09-30</publishedDate><doi>10.1021/acsomega.8b01681</doi><url/><notes/><college>COLLEGE NANME</college><department>Materials Science and Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>MTLS</DepartmentCode><institution>Swansea University</institution><apcterm/><lastEdited>2019-09-03T11:48:09.1339004</lastEdited><Created>2019-08-27T12:29:59.6953205</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Materials Science and Engineering</level></path><authors><author><firstname>M.</firstname><surname>Helen</surname><order>1</order></author><author><firstname>Thomas</firstname><surname>Diemant</surname><order>2</order></author><author><firstname>Stefan</firstname><surname>Schindler</surname><order>3</order></author><author><firstname>R. J&#xFC;rgen</firstname><surname>Behm</surname><order>4</order></author><author><firstname>Michael</firstname><surname>Danzer</surname><order>5</order></author><author><firstname>Ute</firstname><surname>Kaiser</surname><order>6</order></author><author><firstname>Maximilian</firstname><surname>Fichtner</surname><order>7</order></author><author><firstname>M.</firstname><surname>Anji Reddy</surname><order>8</order></author><author><firstname>Anji</firstname><surname>Munnangi</surname><orcid>0000-0001-9101-0252</orcid><order>9</order></author></authors><documents><document><filename>0051586-03092019114759.pdf</filename><originalFilename>helen2018.pdf</originalFilename><uploaded>2019-09-03T11:47:59.8900000</uploaded><type>Output</type><contentLength>5026283</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><embargoDate>2019-09-03T00:00:00.0000000</embargoDate><copyrightCorrect>false</copyrightCorrect><language>eng</language></document></documents><OutputDurs/></rfc1807>
spelling 2019-09-03T11:48:09.1339004 v2 51586 2019-08-27 Insight into Sulfur Confined in Ultramicroporous Carbon 3ed0b4f2ff4fb9e87c7a73e7a3c39da7 0000-0001-9101-0252 Anji Munnangi Anji Munnangi true false 2019-08-27 MTLS Here, we provide a deeper insight into the state of sulfur confined in ultramicroporous carbon (UMC) and clarify its electrochemical reaction mechanism with lithium by corroborating the results obtained using various experimental techniques, such as X-ray photoelectron spectroscopy, electron energy loss spectroscopy, in situ Raman spectroscopy, and in situ electrochemical impedance spectroscopy. In combination, these results indicate that sulfur in UMC exists as linear polymeric sulfur rather than smaller allotropes. The electrochemical reactivity of lithium with sulfur confined in UMC (pore size ≤0.7 nm) is different from that of sulfur confined in microporous carbon (≤2 nm, or ultramicroporous carbon containing significant amount of micropores) and mesoporous carbon (>2 nm). The observed quasi-solid-state reaction of lithium with sulfur in UMC with a single voltage plateau during the discharge/charge process is due to the effective separation of solvent molecules from the active material. The size of carbon pores plays a vital role in determining the reaction path of lithium with sulfur confined in UMC. Journal Article ACS Omega 3 9 11290 11299 2470-1343 2470-1343 30 9 2018 2018-09-30 10.1021/acsomega.8b01681 COLLEGE NANME Materials Science and Engineering COLLEGE CODE MTLS Swansea University 2019-09-03T11:48:09.1339004 2019-08-27T12:29:59.6953205 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering M. Helen 1 Thomas Diemant 2 Stefan Schindler 3 R. Jürgen Behm 4 Michael Danzer 5 Ute Kaiser 6 Maximilian Fichtner 7 M. Anji Reddy 8 Anji Munnangi 0000-0001-9101-0252 9 0051586-03092019114759.pdf helen2018.pdf 2019-09-03T11:47:59.8900000 Output 5026283 application/pdf Version of Record true 2019-09-03T00:00:00.0000000 false eng
title Insight into Sulfur Confined in Ultramicroporous Carbon
spellingShingle Insight into Sulfur Confined in Ultramicroporous Carbon
Anji Munnangi
title_short Insight into Sulfur Confined in Ultramicroporous Carbon
title_full Insight into Sulfur Confined in Ultramicroporous Carbon
title_fullStr Insight into Sulfur Confined in Ultramicroporous Carbon
title_full_unstemmed Insight into Sulfur Confined in Ultramicroporous Carbon
title_sort Insight into Sulfur Confined in Ultramicroporous Carbon
author_id_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7
author_id_fullname_str_mv 3ed0b4f2ff4fb9e87c7a73e7a3c39da7_***_Anji Munnangi
author Anji Munnangi
author2 M. Helen
Thomas Diemant
Stefan Schindler
R. Jürgen Behm
Michael Danzer
Ute Kaiser
Maximilian Fichtner
M. Anji Reddy
Anji Munnangi
format Journal article
container_title ACS Omega
container_volume 3
container_issue 9
container_start_page 11290
publishDate 2018
institution Swansea University
issn 2470-1343
2470-1343
doi_str_mv 10.1021/acsomega.8b01681
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 1
active_str 0
description Here, we provide a deeper insight into the state of sulfur confined in ultramicroporous carbon (UMC) and clarify its electrochemical reaction mechanism with lithium by corroborating the results obtained using various experimental techniques, such as X-ray photoelectron spectroscopy, electron energy loss spectroscopy, in situ Raman spectroscopy, and in situ electrochemical impedance spectroscopy. In combination, these results indicate that sulfur in UMC exists as linear polymeric sulfur rather than smaller allotropes. The electrochemical reactivity of lithium with sulfur confined in UMC (pore size ≤0.7 nm) is different from that of sulfur confined in microporous carbon (≤2 nm, or ultramicroporous carbon containing significant amount of micropores) and mesoporous carbon (>2 nm). The observed quasi-solid-state reaction of lithium with sulfur in UMC with a single voltage plateau during the discharge/charge process is due to the effective separation of solvent molecules from the active material. The size of carbon pores plays a vital role in determining the reaction path of lithium with sulfur confined in UMC.
published_date 2018-09-30T04:03:32Z
_version_ 1763753289256534016
score 11.014067

Similar Items