Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite

Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite

We present analysis of the indirect role of Co doping on the electrocatalytic activity of α-Fe2O3. Upon substitution of one of the Fe atoms in the hematite surface, we observed a promoting effect of the substitution, upon which the overpotential required for the water-splitting reaction decreased in...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The journal of physical chemistry letters 2020-06, Vol.11 (11), p.4402-4407
Hauptverfasser: Szyja, Bartłomiej M, Podsiadły-Paszkowska, Agata
Format: Artikel
Sprache:eng
Schlagworte:
Letter
Physical Insights into Chemistry, Catalysis, and Interfaces
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 4407
container_issue 11
container_start_page 4402
container_title The journal of physical chemistry letters
container_volume 11
creator Szyja, Bartłomiej M
Podsiadły-Paszkowska, Agata
description We present analysis of the indirect role of Co doping on the electrocatalytic activity of α-Fe2O3. Upon substitution of one of the Fe atoms in the hematite surface, we observed a promoting effect of the substitution, upon which the overpotential required for the water-splitting reaction decreased in all substitution sites investigated. The cobalt site itself, however, does not exhibit the improved properties with respect to the undoped hematite. The promoting effect results purely from the altering of the properties of the nearest Fe atoms in the hematite surface. We conclude that the overpotential is reduced upon formation of the structure resembling the O2 molecule strongly interacting with the surface between the Co and Fe sites, and this is consistent with the catalytic activity of the surface vacancies of the hematite.
doi_str_mv 10.1021/acs.jpclett.0c00900
format Article
fullrecord <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7588134</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2397667338</sourcerecordid><originalsourceid>FETCH-LOGICAL-a445t-beed333b4ddba90c8c9cd0eacb95de7bb2e9e1e918e3c4e307966d91f3eb2dd73</originalsourceid><addsrcrecordid>eNp9kU9PGzEQxa2qqEDaT1Cp8pFLgr3eXds9VEJpIJUQcEgvvVj-M0mMnPViO1T59iwkIHrpaUaa996M5ofQV0omlFT0XNs8ue9tgFImxBIiCfmATqisxZhT0Xx81x-j05zvCWklEfwTOmYVayou-An6M4fQ-26FF-sdvgG_WpuYvuN5_Iun0ehQ8M_4Mr8IBVLGZQ14FsCWFK0uOuyKt_guxR5S8ZBxXOI5bHTxBT6jo6UOGb4c6gj9vpwtpvPx9e3Vr-nF9VjXdVPGBsAxxkztnNGSWGGldQS0NbJxwI2pQAIFSQUwWwMjXLatk3TJwFTOcTZCP_a5_dZswFnoStJB9clvdNqpqL36d9L5tVrFR8UbISirh4CzQ0CKD1vIRW18thCC7iBus6qY5G3LGRODlO2lNsWcEyzf1lCinqmogYo6UFEHKoPr2_sL3zyvGAbB-V7w4o7b1A0P-2_kE226nxw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2397667338</pqid></control><display><type>article</type><title>Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite</title><source>American Chemical Society Journals</source><creator>Szyja, Bartłomiej M ; Podsiadły-Paszkowska, Agata</creator><creatorcontrib>Szyja, Bartłomiej M ; Podsiadły-Paszkowska, Agata</creatorcontrib><description>We present analysis of the indirect role of Co doping on the electrocatalytic activity of α-Fe2O3. Upon substitution of one of the Fe atoms in the hematite surface, we observed a promoting effect of the substitution, upon which the overpotential required for the water-splitting reaction decreased in all substitution sites investigated. The cobalt site itself, however, does not exhibit the improved properties with respect to the undoped hematite. The promoting effect results purely from the altering of the properties of the nearest Fe atoms in the hematite surface. We conclude that the overpotential is reduced upon formation of the structure resembling the O2 molecule strongly interacting with the surface between the Co and Fe sites, and this is consistent with the catalytic activity of the surface vacancies of the hematite.</description><identifier>ISSN: 1948-7185</identifier><identifier>EISSN: 1948-7185</identifier><identifier>DOI: 10.1021/acs.jpclett.0c00900</identifier><identifier>PMID: 32352787</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><subject>Letter ; Physical Insights into Chemistry, Catalysis, and Interfaces</subject><ispartof>The journal of physical chemistry letters, 2020-06, Vol.11 (11), p.4402-4407</ispartof><rights>2020 American Chemical Society</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a445t-beed333b4ddba90c8c9cd0eacb95de7bb2e9e1e918e3c4e307966d91f3eb2dd73</citedby><cites>FETCH-LOGICAL-a445t-beed333b4ddba90c8c9cd0eacb95de7bb2e9e1e918e3c4e307966d91f3eb2dd73</cites><orcidid>0000-0002-0690-9341 ; 0000-0003-3411-8800</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acs.jpclett.0c00900$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acs.jpclett.0c00900$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>230,314,780,784,885,2765,27076,27924,27925,56738,56788</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32352787$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Szyja, Bartłomiej M</creatorcontrib><creatorcontrib>Podsiadły-Paszkowska, Agata</creatorcontrib><title>Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite</title><title>The journal of physical chemistry letters</title><addtitle>J. Phys. Chem. Lett</addtitle><description>We present analysis of the indirect role of Co doping on the electrocatalytic activity of α-Fe2O3. Upon substitution of one of the Fe atoms in the hematite surface, we observed a promoting effect of the substitution, upon which the overpotential required for the water-splitting reaction decreased in all substitution sites investigated. The cobalt site itself, however, does not exhibit the improved properties with respect to the undoped hematite. The promoting effect results purely from the altering of the properties of the nearest Fe atoms in the hematite surface. We conclude that the overpotential is reduced upon formation of the structure resembling the O2 molecule strongly interacting with the surface between the Co and Fe sites, and this is consistent with the catalytic activity of the surface vacancies of the hematite.</description><subject>Letter</subject><subject>Physical Insights into Chemistry, Catalysis, and Interfaces</subject><issn>1948-7185</issn><issn>1948-7185</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kU9PGzEQxa2qqEDaT1Cp8pFLgr3eXds9VEJpIJUQcEgvvVj-M0mMnPViO1T59iwkIHrpaUaa996M5ofQV0omlFT0XNs8ue9tgFImxBIiCfmATqisxZhT0Xx81x-j05zvCWklEfwTOmYVayou-An6M4fQ-26FF-sdvgG_WpuYvuN5_Iun0ehQ8M_4Mr8IBVLGZQ14FsCWFK0uOuyKt_guxR5S8ZBxXOI5bHTxBT6jo6UOGb4c6gj9vpwtpvPx9e3Vr-nF9VjXdVPGBsAxxkztnNGSWGGldQS0NbJxwI2pQAIFSQUwWwMjXLatk3TJwFTOcTZCP_a5_dZswFnoStJB9clvdNqpqL36d9L5tVrFR8UbISirh4CzQ0CKD1vIRW18thCC7iBus6qY5G3LGRODlO2lNsWcEyzf1lCinqmogYo6UFEHKoPr2_sL3zyvGAbB-V7w4o7b1A0P-2_kE226nxw</recordid><startdate>20200604</startdate><enddate>20200604</enddate><creator>Szyja, Bartłomiej M</creator><creator>Podsiadły-Paszkowska, Agata</creator><general>American Chemical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-0690-9341</orcidid><orcidid>https://orcid.org/0000-0003-3411-8800</orcidid></search><sort><creationdate>20200604</creationdate><title>Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite</title><author>Szyja, Bartłomiej M ; Podsiadły-Paszkowska, Agata</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a445t-beed333b4ddba90c8c9cd0eacb95de7bb2e9e1e918e3c4e307966d91f3eb2dd73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Letter</topic><topic>Physical Insights into Chemistry, Catalysis, and Interfaces</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Szyja, Bartłomiej M</creatorcontrib><creatorcontrib>Podsiadły-Paszkowska, Agata</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>The journal of physical chemistry letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Szyja, Bartłomiej M</au><au>Podsiadły-Paszkowska, Agata</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite</atitle><jtitle>The journal of physical chemistry letters</jtitle><addtitle>J. Phys. Chem. Lett</addtitle><date>2020-06-04</date><risdate>2020</risdate><volume>11</volume><issue>11</issue><spage>4402</spage><epage>4407</epage><pages>4402-4407</pages><issn>1948-7185</issn><eissn>1948-7185</eissn><abstract>We present analysis of the indirect role of Co doping on the electrocatalytic activity of α-Fe2O3. Upon substitution of one of the Fe atoms in the hematite surface, we observed a promoting effect of the substitution, upon which the overpotential required for the water-splitting reaction decreased in all substitution sites investigated. The cobalt site itself, however, does not exhibit the improved properties with respect to the undoped hematite. The promoting effect results purely from the altering of the properties of the nearest Fe atoms in the hematite surface. We conclude that the overpotential is reduced upon formation of the structure resembling the O2 molecule strongly interacting with the surface between the Co and Fe sites, and this is consistent with the catalytic activity of the surface vacancies of the hematite.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>32352787</pmid><doi>10.1021/acs.jpclett.0c00900</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-0690-9341</orcidid><orcidid>https://orcid.org/0000-0003-3411-8800</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1948-7185
ispartof The journal of physical chemistry letters, 2020-06, Vol.11 (11), p.4402-4407
issn 1948-7185
1948-7185
language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_7588134
source American Chemical Society Journals
subjects Letter
Physical Insights into Chemistry, Catalysis, and Interfaces
title Helping Thy Neighbor: How Cobalt Doping Alters the Electrocatalytic Properties of Hematite
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-28T22%3A45%3A26IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Helping%20Thy%20Neighbor:%20How%20Cobalt%20Doping%20Alters%20the%20Electrocatalytic%20Properties%20of%20Hematite&rft.jtitle=The%20journal%20of%20physical%20chemistry%20letters&rft.au=Szyja,%20Bart%C5%82omiej%20M&rft.date=2020-06-04&rft.volume=11&rft.issue=11&rft.spage=4402&rft.epage=4407&rft.pages=4402-4407&rft.issn=1948-7185&rft.eissn=1948-7185&rft_id=info:doi/10.1021/acs.jpclett.0c00900&rft_dat=%3Cproquest_pubme%3E2397667338%3C/proquest_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2397667338&rft_id=info:pmid/32352787&rfr_iscdi=true