Lithiation Mechanism of Methylated Amorphous Silicon Unveiled by Operando ATR‐FTIR Spectroscopy
The lithiation mechanism of methylated amorphous silicon, a‐Si1−x(CH3)x:H, with various methyl contents (x = 0 ‐ 0.12) is investigated using operando attenuated total reflection Fourier transform infrared spectroscopy. As in hydrogenated amorphous silicon, a‐Si:H, the first lithiation proceeds via a...
Gespeichert in:
| Veröffentlicht in: | Advanced energy materials 2018-05, Vol.8 (13), p.n/a |
|---|---|
| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | n/a |
|---|---|
| container_issue | 13 |
| container_start_page | |
| container_title | Advanced energy materials |
| container_volume | 8 |
| creator | Koo, Bon Min Corte, Daniel Alves Dalla Chazalviel, Jean‐Noël Maroun, Fouad Rosso, Michel Ozanam, François |
| description | The lithiation mechanism of methylated amorphous silicon, a‐Si1−x(CH3)x:H, with various methyl contents (x = 0 ‐ 0.12) is investigated using operando attenuated total reflection Fourier transform infrared spectroscopy. As in hydrogenated amorphous silicon, a‐Si:H, the first lithiation proceeds via a two‐phase mechanism. The concentration of the invading Li‐rich phase nonmonotonously depends on the methyl content of the active material. This behavior is tentatively explained by two distinct effects: a softening of the material due to a methyl‐induced lowering of its reticulation degree and its cohesion, and the presence of nanovoids at high enough methyl content.
The first lithiation of a‐Si1−x(CH3)x:H is biphasic. Methyl groups lower the material cohesion and at concentrations >5%, induce the formation of nanovoids. It yields a nontrivial dependence of the Li‐content of the invading phase as a function of the methyl content of the material. |
| doi_str_mv | 10.1002/aenm.201702568 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_02324947v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2034231204</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3888-5cdd4ac4ab347b393a306dba24ec59bf786eb6618b7da64bd6e31e7372c5a7d73</originalsourceid><addsrcrecordid>eNqFkD1vgzAQhlHVSo3SrJ2ROnUg9Rc2jChKmkikkfIxW8YY4QgwBZKKrT-hv7G_pI6o0rFeznf3vKe713EeIZhCANCLUFU5RQAygHwa3DgjSCHxaEDA7fWP0b0zadsjsI-EEGA8ckSsu1yLTpvKXSuZi0q3pWsym3R5X4hOpW5UmqbOzal1d7rQ0pKH6qx0YVtJ725q1YgqNW60335_fi32q627q5XsGtNKU_cPzl0milZNfuPYOSzm-9nSizevq1kUexIHQeD5Mk2JkEQkmLAEh1hgQNNEIKKkHyYZC6hKKIVBwlJBSZJShaFimCHpC5YyPHaeh7m5KHjd6FI0PTdC82UU80sNIIxISNgZWvZpYOvGvJ9U2_GjOTWVXY8jgAnCEAFiqelASXtK26jsOhYCfnGdX1znV9etIBwEH9ac_h-aR_O39Z_2Bytihro</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2034231204</pqid></control><display><type>article</type><title>Lithiation Mechanism of Methylated Amorphous Silicon Unveiled by Operando ATR‐FTIR Spectroscopy</title><source>Wiley Online Library - AutoHoldings Journals</source><creator>Koo, Bon Min ; Corte, Daniel Alves Dalla ; Chazalviel, Jean‐Noël ; Maroun, Fouad ; Rosso, Michel ; Ozanam, François</creator><creatorcontrib>Koo, Bon Min ; Corte, Daniel Alves Dalla ; Chazalviel, Jean‐Noël ; Maroun, Fouad ; Rosso, Michel ; Ozanam, François</creatorcontrib><description>The lithiation mechanism of methylated amorphous silicon, a‐Si1−x(CH3)x:H, with various methyl contents (x = 0 ‐ 0.12) is investigated using operando attenuated total reflection Fourier transform infrared spectroscopy. As in hydrogenated amorphous silicon, a‐Si:H, the first lithiation proceeds via a two‐phase mechanism. The concentration of the invading Li‐rich phase nonmonotonously depends on the methyl content of the active material. This behavior is tentatively explained by two distinct effects: a softening of the material due to a methyl‐induced lowering of its reticulation degree and its cohesion, and the presence of nanovoids at high enough methyl content.
The first lithiation of a‐Si1−x(CH3)x:H is biphasic. Methyl groups lower the material cohesion and at concentrations >5%, induce the formation of nanovoids. It yields a nontrivial dependence of the Li‐content of the invading phase as a function of the methyl content of the material.</description><identifier>ISSN: 1614-6832</identifier><identifier>EISSN: 1614-6840</identifier><identifier>DOI: 10.1002/aenm.201702568</identifier><language>eng</language><publisher>Weinheim: Wiley Subscription Services, Inc</publisher><subject>Amorphous silicon ; Analytical chemistry ; Chemical Sciences ; Fourier transforms ; Infrared reflection ; lithiation mechanisms ; Li‐ion batteries ; operando ATR‐FTIR ; silicon anodes</subject><ispartof>Advanced energy materials, 2018-05, Vol.8 (13), p.n/a</ispartof><rights>2018 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3888-5cdd4ac4ab347b393a306dba24ec59bf786eb6618b7da64bd6e31e7372c5a7d73</citedby><cites>FETCH-LOGICAL-c3888-5cdd4ac4ab347b393a306dba24ec59bf786eb6618b7da64bd6e31e7372c5a7d73</cites><orcidid>0000-0003-0002-8372 ; 0000-0003-0886-1588 ; 0000-0003-4691-8207</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Faenm.201702568$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Faenm.201702568$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,780,784,885,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://hal.science/hal-02324947$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Koo, Bon Min</creatorcontrib><creatorcontrib>Corte, Daniel Alves Dalla</creatorcontrib><creatorcontrib>Chazalviel, Jean‐Noël</creatorcontrib><creatorcontrib>Maroun, Fouad</creatorcontrib><creatorcontrib>Rosso, Michel</creatorcontrib><creatorcontrib>Ozanam, François</creatorcontrib><title>Lithiation Mechanism of Methylated Amorphous Silicon Unveiled by Operando ATR‐FTIR Spectroscopy</title><title>Advanced energy materials</title><description>The lithiation mechanism of methylated amorphous silicon, a‐Si1−x(CH3)x:H, with various methyl contents (x = 0 ‐ 0.12) is investigated using operando attenuated total reflection Fourier transform infrared spectroscopy. As in hydrogenated amorphous silicon, a‐Si:H, the first lithiation proceeds via a two‐phase mechanism. The concentration of the invading Li‐rich phase nonmonotonously depends on the methyl content of the active material. This behavior is tentatively explained by two distinct effects: a softening of the material due to a methyl‐induced lowering of its reticulation degree and its cohesion, and the presence of nanovoids at high enough methyl content.
The first lithiation of a‐Si1−x(CH3)x:H is biphasic. Methyl groups lower the material cohesion and at concentrations >5%, induce the formation of nanovoids. It yields a nontrivial dependence of the Li‐content of the invading phase as a function of the methyl content of the material.</description><subject>Amorphous silicon</subject><subject>Analytical chemistry</subject><subject>Chemical Sciences</subject><subject>Fourier transforms</subject><subject>Infrared reflection</subject><subject>lithiation mechanisms</subject><subject>Li‐ion batteries</subject><subject>operando ATR‐FTIR</subject><subject>silicon anodes</subject><issn>1614-6832</issn><issn>1614-6840</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkD1vgzAQhlHVSo3SrJ2ROnUg9Rc2jChKmkikkfIxW8YY4QgwBZKKrT-hv7G_pI6o0rFeznf3vKe713EeIZhCANCLUFU5RQAygHwa3DgjSCHxaEDA7fWP0b0zadsjsI-EEGA8ckSsu1yLTpvKXSuZi0q3pWsym3R5X4hOpW5UmqbOzal1d7rQ0pKH6qx0YVtJ725q1YgqNW60335_fi32q627q5XsGtNKU_cPzl0milZNfuPYOSzm-9nSizevq1kUexIHQeD5Mk2JkEQkmLAEh1hgQNNEIKKkHyYZC6hKKIVBwlJBSZJShaFimCHpC5YyPHaeh7m5KHjd6FI0PTdC82UU80sNIIxISNgZWvZpYOvGvJ9U2_GjOTWVXY8jgAnCEAFiqelASXtK26jsOhYCfnGdX1znV9etIBwEH9ac_h-aR_O39Z_2Bytihro</recordid><startdate>20180504</startdate><enddate>20180504</enddate><creator>Koo, Bon Min</creator><creator>Corte, Daniel Alves Dalla</creator><creator>Chazalviel, Jean‐Noël</creator><creator>Maroun, Fouad</creator><creator>Rosso, Michel</creator><creator>Ozanam, François</creator><general>Wiley Subscription Services, Inc</general><general>Wiley-VCH Verlag</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-0002-8372</orcidid><orcidid>https://orcid.org/0000-0003-0886-1588</orcidid><orcidid>https://orcid.org/0000-0003-4691-8207</orcidid></search><sort><creationdate>20180504</creationdate><title>Lithiation Mechanism of Methylated Amorphous Silicon Unveiled by Operando ATR‐FTIR Spectroscopy</title><author>Koo, Bon Min ; Corte, Daniel Alves Dalla ; Chazalviel, Jean‐Noël ; Maroun, Fouad ; Rosso, Michel ; Ozanam, François</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3888-5cdd4ac4ab347b393a306dba24ec59bf786eb6618b7da64bd6e31e7372c5a7d73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Amorphous silicon</topic><topic>Analytical chemistry</topic><topic>Chemical Sciences</topic><topic>Fourier transforms</topic><topic>Infrared reflection</topic><topic>lithiation mechanisms</topic><topic>Li‐ion batteries</topic><topic>operando ATR‐FTIR</topic><topic>silicon anodes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Koo, Bon Min</creatorcontrib><creatorcontrib>Corte, Daniel Alves Dalla</creatorcontrib><creatorcontrib>Chazalviel, Jean‐Noël</creatorcontrib><creatorcontrib>Maroun, Fouad</creatorcontrib><creatorcontrib>Rosso, Michel</creatorcontrib><creatorcontrib>Ozanam, François</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Advanced energy materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Koo, Bon Min</au><au>Corte, Daniel Alves Dalla</au><au>Chazalviel, Jean‐Noël</au><au>Maroun, Fouad</au><au>Rosso, Michel</au><au>Ozanam, François</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lithiation Mechanism of Methylated Amorphous Silicon Unveiled by Operando ATR‐FTIR Spectroscopy</atitle><jtitle>Advanced energy materials</jtitle><date>2018-05-04</date><risdate>2018</risdate><volume>8</volume><issue>13</issue><epage>n/a</epage><issn>1614-6832</issn><eissn>1614-6840</eissn><abstract>The lithiation mechanism of methylated amorphous silicon, a‐Si1−x(CH3)x:H, with various methyl contents (x = 0 ‐ 0.12) is investigated using operando attenuated total reflection Fourier transform infrared spectroscopy. As in hydrogenated amorphous silicon, a‐Si:H, the first lithiation proceeds via a two‐phase mechanism. The concentration of the invading Li‐rich phase nonmonotonously depends on the methyl content of the active material. This behavior is tentatively explained by two distinct effects: a softening of the material due to a methyl‐induced lowering of its reticulation degree and its cohesion, and the presence of nanovoids at high enough methyl content.
The first lithiation of a‐Si1−x(CH3)x:H is biphasic. Methyl groups lower the material cohesion and at concentrations >5%, induce the formation of nanovoids. It yields a nontrivial dependence of the Li‐content of the invading phase as a function of the methyl content of the material.</abstract><cop>Weinheim</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1002/aenm.201702568</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-0002-8372</orcidid><orcidid>https://orcid.org/0000-0003-0886-1588</orcidid><orcidid>https://orcid.org/0000-0003-4691-8207</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1614-6832 |
| ispartof | Advanced energy materials, 2018-05, Vol.8 (13), p.n/a |
| issn | 1614-6832 1614-6840 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_02324947v1 |
| source | Wiley Online Library - AutoHoldings Journals |
| subjects | Amorphous silicon Analytical chemistry Chemical Sciences Fourier transforms Infrared reflection lithiation mechanisms Li‐ion batteries operando ATR‐FTIR silicon anodes |
| title | Lithiation Mechanism of Methylated Amorphous Silicon Unveiled by Operando ATR‐FTIR Spectroscopy |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-07T15%3A05%3A59IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Lithiation%20Mechanism%20of%20Methylated%20Amorphous%20Silicon%20Unveiled%20by%20Operando%20ATR%E2%80%90FTIR%20Spectroscopy&rft.jtitle=Advanced%20energy%20materials&rft.au=Koo,%20Bon%20Min&rft.date=2018-05-04&rft.volume=8&rft.issue=13&rft.epage=n/a&rft.issn=1614-6832&rft.eissn=1614-6840&rft_id=info:doi/10.1002/aenm.201702568&rft_dat=%3Cproquest_hal_p%3E2034231204%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2034231204&rft_id=info:pmid/&rfr_iscdi=true |