Local Surface Structure and Composition Control the Hydrogen Evolution Reaction on Iron Nickel Sulfides
In order to design more powerful electrocatalysts, developing our understanding of the role of the surface structure and composition of widely abundant bulk materials is crucial. This is particularly true in the search for alternative hydrogen evolution reaction (HER) catalysts to replace platinum....
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| Veröffentlicht in: | Angewandte Chemie International Edition 2018-04, Vol.57 (15), p.4093-4097 |
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| creator | Bentley, Cameron L. Andronescu, Corina Smialkowski, Mathias Kang, Minkyung Tarnev, Tsvetan Marler, Bernd Unwin, Patrick R. Apfel, Ulf‐Peter Schuhmann, Wolfgang |
| description | In order to design more powerful electrocatalysts, developing our understanding of the role of the surface structure and composition of widely abundant bulk materials is crucial. This is particularly true in the search for alternative hydrogen evolution reaction (HER) catalysts to replace platinum. We report scanning electrochemical cell microscopy (SECCM) measurements of the (111)‐crystal planes of Fe4.5Ni4.5S8, a highly active HER catalyst. In combination with structural characterization methods, we show that this technique can reveal differences in activity arising from even the slightest compositional changes. By probing electrochemical properties at the nanoscale, in conjunction with complementary structural information, novel design principles are revealed for application to rational material synthesis.
Small change, big difference: Local investigation of the hydrogen evolution reaction (HER) on a single crystal of iron nickel sulfide, one of the most active non‐noble‐metal HER catalysts, was carried out using scanning electrochemical cell microscopy (SECCM). Small variations in the Ni/Fe ratio at the surface induce tremendous changes in the catalytic HER activity. |
| doi_str_mv | 10.1002/anie.201712679 |
| format | Article |
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Small change, big difference: Local investigation of the hydrogen evolution reaction (HER) on a single crystal of iron nickel sulfide, one of the most active non‐noble‐metal HER catalysts, was carried out using scanning electrochemical cell microscopy (SECCM). Small variations in the Ni/Fe ratio at the surface induce tremendous changes in the catalytic HER activity.</description><subject>Catalysis</subject><subject>Catalysts</subject><subject>electrocatalysis</subject><subject>Electrocatalysts</subject><subject>Electrochemical analysis</subject><subject>Electrochemistry</subject><subject>hydrogen evolution reaction</subject><subject>Hydrogen evolution reactions</subject><subject>Iron</subject><subject>iron nickel sulfides</subject><subject>Microscopy</subject><subject>Nickel</subject><subject>Nickel sulfide</subject><subject>Platinum</subject><subject>SECCM</subject><subject>Structural analysis</subject><subject>Surface structure</subject><subject>surfaces</subject><issn>1433-7851</issn><issn>1521-3773</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkcFLwzAYxYMobk6vHqXgxUtn0rRpcxxjusGY4PQc0vTr7GybmbTK_nvTbU7wYgjJI_nlEd5D6JrgIcE4uJd1AcMAk5gELOYnqE-igPg0jump0yGlfpxEpIcurF07PkkwO0e9gDsi5LyPVnOtZOktW5NLBd6yMa1qWgOerDNvrKuNtkVT6NrpujG69Jo38KbbzOgV1N7kU5ft7voZpNoJN2fGLYtCvUNnXOZFBvYSneWytHB12Afo9WHyMp7686fH2Xg091VEGPczFiqeRSphIfCExRkGpdIsYgGBKHFDUqLSHEsWSRYTnLvzNEwhUnnKOKV0gO72vhujP1qwjagKq6AsZQ26tYJwTjEhLgmH3v5B17o1tfud6AJ1EfEgdNRwTymjrTWQi40pKmm2gmDRVSC6CsSxAvfg5mDbphVkR_wncwfwPfBVlLD9x06MFrPJr_k3Q2qTNw</recordid><startdate>20180403</startdate><enddate>20180403</enddate><creator>Bentley, Cameron L.</creator><creator>Andronescu, Corina</creator><creator>Smialkowski, Mathias</creator><creator>Kang, Minkyung</creator><creator>Tarnev, Tsvetan</creator><creator>Marler, Bernd</creator><creator>Unwin, Patrick R.</creator><creator>Apfel, Ulf‐Peter</creator><creator>Schuhmann, Wolfgang</creator><general>Wiley Subscription Services, Inc</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TM</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0003-3106-2178</orcidid><orcidid>https://orcid.org/0000-0003-3769-3595</orcidid><orcidid>https://orcid.org/0000-0002-5203-3651</orcidid><orcidid>https://orcid.org/0000-0002-1577-2420</orcidid><orcidid>https://orcid.org/0000-0003-3248-8496</orcidid><orcidid>https://orcid.org/0000-0003-2916-5223</orcidid><orcidid>https://orcid.org/0000-0001-7867-6068</orcidid><orcidid>https://orcid.org/0000-0002-1227-1209</orcidid></search><sort><creationdate>20180403</creationdate><title>Local Surface Structure and Composition Control the Hydrogen Evolution Reaction on Iron Nickel Sulfides</title><author>Bentley, Cameron L. ; Andronescu, Corina ; Smialkowski, Mathias ; Kang, Minkyung ; Tarnev, Tsvetan ; Marler, Bernd ; Unwin, Patrick R. ; Apfel, Ulf‐Peter ; Schuhmann, Wolfgang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c5169-d64c9d5c864e9867d0eccbd5621e58888a31cbf0a65a6710f21eb4be5cfb69333</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Catalysis</topic><topic>Catalysts</topic><topic>electrocatalysis</topic><topic>Electrocatalysts</topic><topic>Electrochemical analysis</topic><topic>Electrochemistry</topic><topic>hydrogen evolution reaction</topic><topic>Hydrogen evolution reactions</topic><topic>Iron</topic><topic>iron nickel sulfides</topic><topic>Microscopy</topic><topic>Nickel</topic><topic>Nickel sulfide</topic><topic>Platinum</topic><topic>SECCM</topic><topic>Structural analysis</topic><topic>Surface structure</topic><topic>surfaces</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bentley, Cameron L.</creatorcontrib><creatorcontrib>Andronescu, Corina</creatorcontrib><creatorcontrib>Smialkowski, Mathias</creatorcontrib><creatorcontrib>Kang, Minkyung</creatorcontrib><creatorcontrib>Tarnev, Tsvetan</creatorcontrib><creatorcontrib>Marler, Bernd</creatorcontrib><creatorcontrib>Unwin, Patrick R.</creatorcontrib><creatorcontrib>Apfel, Ulf‐Peter</creatorcontrib><creatorcontrib>Schuhmann, Wolfgang</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Nucleic Acids Abstracts</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Angewandte Chemie International Edition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bentley, Cameron L.</au><au>Andronescu, Corina</au><au>Smialkowski, Mathias</au><au>Kang, Minkyung</au><au>Tarnev, Tsvetan</au><au>Marler, Bernd</au><au>Unwin, Patrick R.</au><au>Apfel, Ulf‐Peter</au><au>Schuhmann, Wolfgang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Local Surface Structure and Composition Control the Hydrogen Evolution Reaction on Iron Nickel Sulfides</atitle><jtitle>Angewandte Chemie International Edition</jtitle><addtitle>Angew Chem Int Ed Engl</addtitle><date>2018-04-03</date><risdate>2018</risdate><volume>57</volume><issue>15</issue><spage>4093</spage><epage>4097</epage><pages>4093-4097</pages><issn>1433-7851</issn><eissn>1521-3773</eissn><abstract>In order to design more powerful electrocatalysts, developing our understanding of the role of the surface structure and composition of widely abundant bulk materials is crucial. 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Small change, big difference: Local investigation of the hydrogen evolution reaction (HER) on a single crystal of iron nickel sulfide, one of the most active non‐noble‐metal HER catalysts, was carried out using scanning electrochemical cell microscopy (SECCM). Small variations in the Ni/Fe ratio at the surface induce tremendous changes in the catalytic HER activity.</abstract><cop>Germany</cop><pub>Wiley Subscription Services, Inc</pub><pmid>29377499</pmid><doi>10.1002/anie.201712679</doi><tpages>5</tpages><edition>International ed. in English</edition><orcidid>https://orcid.org/0000-0003-3106-2178</orcidid><orcidid>https://orcid.org/0000-0003-3769-3595</orcidid><orcidid>https://orcid.org/0000-0002-5203-3651</orcidid><orcidid>https://orcid.org/0000-0002-1577-2420</orcidid><orcidid>https://orcid.org/0000-0003-3248-8496</orcidid><orcidid>https://orcid.org/0000-0003-2916-5223</orcidid><orcidid>https://orcid.org/0000-0001-7867-6068</orcidid><orcidid>https://orcid.org/0000-0002-1227-1209</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Catalysis Catalysts electrocatalysis Electrocatalysts Electrochemical analysis Electrochemistry hydrogen evolution reaction Hydrogen evolution reactions Iron iron nickel sulfides Microscopy Nickel Nickel sulfide Platinum SECCM Structural analysis Surface structure surfaces |
| title | Local Surface Structure and Composition Control the Hydrogen Evolution Reaction on Iron Nickel Sulfides |
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