Recent advances in understanding oxygen evolution reaction mechanisms over iridium oxide
Water electrolysis driven by renewable energy can produce clean hydrogen, but its efficiency remains low, in part because of slow kinetics at the anode for the oxygen evolution reaction (OER). Learning from the most active catalysts for the OER, iridium oxides, would be the key to the development an...
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Veröffentlicht in: | Inorganic chemistry frontiers 2021-06, Vol.8 (11), p.29-2917 |
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creator | Naito, Takahiro Shinagawa, Tatsuya Nishimoto, Takeshi Takanabe, Kazuhiro |
description | Water electrolysis driven by renewable energy can produce clean hydrogen, but its efficiency remains low, in part because of slow kinetics at the anode for the oxygen evolution reaction (OER). Learning from the most active catalysts for the OER, iridium oxides, would be the key to the development and establishment of design guidelines for active and stable OER catalysts. This article reviews
in situ
or operando spectroscopic and advanced computational studies in the past decade concerning the OER over iridium oxide for both the oxidation of water molecules and hydroxide ions. By collectively reviewing the reported findings, we illustrate the plausible OER catalytic cycles including the dissolution of iridium during the reaction, which at the same time disclosed discrepancies in the proposed mechanisms. Such discrepancies are thought to originate from variations in the experimental conditions employed in those studies, calling for comprehensive and systematic
in situ
or operando studies in the future. Toward the end, we discuss a recent approach for improving the activity and stability of OER catalysts.
Recent spectroscopic and computational studies concerning the oxygen evolution reaction over iridium oxides are reviewed to provide the state-of-the-art understanding of its reaction mechanism. |
doi_str_mv | 10.1039/d0qi01465f |
format | Article |
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in situ
or operando spectroscopic and advanced computational studies in the past decade concerning the OER over iridium oxide for both the oxidation of water molecules and hydroxide ions. By collectively reviewing the reported findings, we illustrate the plausible OER catalytic cycles including the dissolution of iridium during the reaction, which at the same time disclosed discrepancies in the proposed mechanisms. Such discrepancies are thought to originate from variations in the experimental conditions employed in those studies, calling for comprehensive and systematic
in situ
or operando studies in the future. Toward the end, we discuss a recent approach for improving the activity and stability of OER catalysts.
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in situ
or operando spectroscopic and advanced computational studies in the past decade concerning the OER over iridium oxide for both the oxidation of water molecules and hydroxide ions. By collectively reviewing the reported findings, we illustrate the plausible OER catalytic cycles including the dissolution of iridium during the reaction, which at the same time disclosed discrepancies in the proposed mechanisms. Such discrepancies are thought to originate from variations in the experimental conditions employed in those studies, calling for comprehensive and systematic
in situ
or operando studies in the future. Toward the end, we discuss a recent approach for improving the activity and stability of OER catalysts.
Recent spectroscopic and computational studies concerning the oxygen evolution reaction over iridium oxides are reviewed to provide the state-of-the-art understanding of its reaction mechanism.</description><subject>Catalysts</subject><subject>Clean energy</subject><subject>Electrolysis</subject><subject>Inorganic chemistry</subject><subject>Iridium</subject><subject>Oxidation</subject><subject>Oxygen evolution reactions</subject><subject>Reaction mechanisms</subject><subject>Water chemistry</subject><issn>2052-1553</issn><issn>2052-1545</issn><issn>2052-1553</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpNkM1LwzAYh4MoOOYu3oWAN6H6ps1He5TpdDAQRcFbCcnbmbGmW9IO999bV1FP7-_wvF8PIecMrhlkxY2FrQPGpaiOyCgFkSZMiOz4Xz4lkxhXAMAYByZhRN5f0KBvqbY77Q1G6jztvMUQW-2t80vafO6X6CnumnXXusbTgNocQo3mQ3sX60ibHQbqgrOuq_sOZ_GMnFR6HXHyU8fkbXb_On1MFk8P8-ntIjFZnrUJV9IqKw3mXGFRYW6r_rJKcsVkirlEqQvEFNAqhSnnxliVSiwAbN4_wLMxuRzmbkKz7TC25arpgu9XlqnIBHCuBPTU1UCZ0MQYsCo3wdU67EsG5be88g6e5wd5sx6-GOAQzS_3Jzf7AoJobEQ</recordid><startdate>20210607</startdate><enddate>20210607</enddate><creator>Naito, Takahiro</creator><creator>Shinagawa, Tatsuya</creator><creator>Nishimoto, Takeshi</creator><creator>Takanabe, Kazuhiro</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-8962-8790</orcidid><orcidid>https://orcid.org/0000-0002-5240-7342</orcidid><orcidid>https://orcid.org/0000-0001-5374-9451</orcidid><orcidid>https://orcid.org/0000-0003-3063-8489</orcidid></search><sort><creationdate>20210607</creationdate><title>Recent advances in understanding oxygen evolution reaction mechanisms over iridium oxide</title><author>Naito, Takahiro ; Shinagawa, Tatsuya ; Nishimoto, Takeshi ; Takanabe, Kazuhiro</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-476d7d6ce847e9fe8df401f647162e86e6a9ee20ed77e244ccd726e900d816043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Catalysts</topic><topic>Clean energy</topic><topic>Electrolysis</topic><topic>Inorganic chemistry</topic><topic>Iridium</topic><topic>Oxidation</topic><topic>Oxygen evolution reactions</topic><topic>Reaction mechanisms</topic><topic>Water chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Naito, Takahiro</creatorcontrib><creatorcontrib>Shinagawa, Tatsuya</creatorcontrib><creatorcontrib>Nishimoto, Takeshi</creatorcontrib><creatorcontrib>Takanabe, Kazuhiro</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Inorganic chemistry frontiers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Naito, Takahiro</au><au>Shinagawa, Tatsuya</au><au>Nishimoto, Takeshi</au><au>Takanabe, Kazuhiro</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Recent advances in understanding oxygen evolution reaction mechanisms over iridium oxide</atitle><jtitle>Inorganic chemistry frontiers</jtitle><date>2021-06-07</date><risdate>2021</risdate><volume>8</volume><issue>11</issue><spage>29</spage><epage>2917</epage><pages>29-2917</pages><issn>2052-1553</issn><issn>2052-1545</issn><eissn>2052-1553</eissn><abstract>Water electrolysis driven by renewable energy can produce clean hydrogen, but its efficiency remains low, in part because of slow kinetics at the anode for the oxygen evolution reaction (OER). Learning from the most active catalysts for the OER, iridium oxides, would be the key to the development and establishment of design guidelines for active and stable OER catalysts. This article reviews
in situ
or operando spectroscopic and advanced computational studies in the past decade concerning the OER over iridium oxide for both the oxidation of water molecules and hydroxide ions. By collectively reviewing the reported findings, we illustrate the plausible OER catalytic cycles including the dissolution of iridium during the reaction, which at the same time disclosed discrepancies in the proposed mechanisms. Such discrepancies are thought to originate from variations in the experimental conditions employed in those studies, calling for comprehensive and systematic
in situ
or operando studies in the future. Toward the end, we discuss a recent approach for improving the activity and stability of OER catalysts.
Recent spectroscopic and computational studies concerning the oxygen evolution reaction over iridium oxides are reviewed to provide the state-of-the-art understanding of its reaction mechanism.</abstract><cop>London</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d0qi01465f</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0001-8962-8790</orcidid><orcidid>https://orcid.org/0000-0002-5240-7342</orcidid><orcidid>https://orcid.org/0000-0001-5374-9451</orcidid><orcidid>https://orcid.org/0000-0003-3063-8489</orcidid><oa>free_for_read</oa></addata></record> |
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subjects | Catalysts Clean energy Electrolysis Inorganic chemistry Iridium Oxidation Oxygen evolution reactions Reaction mechanisms Water chemistry |
title | Recent advances in understanding oxygen evolution reaction mechanisms over iridium oxide |
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