Co 3+ -Rich Na 1.95 CoP 2 O 7 Phosphates as Efficient Bifunctional Catalysts for Oxygen Evolution and Reduction Reactions in Alkaline Solution
Implementing sustainable energy conversion and storage technologies is highly reliant on crucial oxygen electrocatalysis, such as the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). However, the pursuit of low cost, energetic efficient and robust bifunctional catalysts for OER a...
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Veröffentlicht in: | Chemistry : a European journal 2019-08, Vol.25 (47), p.11007-11014 |
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container_title | Chemistry : a European journal |
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creator | Gui, Liangqi Miao, Xiaoyun Lei, Chengjun Wang, Kailin Zhou, Wei He, Beibei Wang, Qing Zhao, Ling |
description | Implementing sustainable energy conversion and storage technologies is highly reliant on crucial oxygen electrocatalysis, such as the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). However, the pursuit of low cost, energetic efficient and robust bifunctional catalysts for OER and ORR remains a great challenge. Herein, the novel Na-ion-deficient Na
CoP
O
catalysts are proposed to efficiently electrocatalyze OER and ORR in alkaline solution. The engineering of Na-ion deficiency can tune the electronic structure of Co, and thus tailor the intrinsically electrocatalytic performance. Among the sodium cobalt phosphate catalysts, the Na
CoP
O
(NCPO5) catalyst exhibits the lowest ΔE (E
-E
) of only 0.86 V, which favorably outperforms most of the reported non-noble metal catalysts. Moreover, the Na-ion deficiency can stabilize the phase structure and morphology of NCPO5 during the OER and ORR processes. This study highlights the Na-ion deficient Na
CoP
O
as a promising class of low-cost, highly active and robust bifunctional catalysts for OER and ORR. |
doi_str_mv | 10.1002/chem.201901848 |
format | Article |
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CoP
O
catalysts are proposed to efficiently electrocatalyze OER and ORR in alkaline solution. The engineering of Na-ion deficiency can tune the electronic structure of Co, and thus tailor the intrinsically electrocatalytic performance. Among the sodium cobalt phosphate catalysts, the Na
CoP
O
(NCPO5) catalyst exhibits the lowest ΔE (E
-E
) of only 0.86 V, which favorably outperforms most of the reported non-noble metal catalysts. Moreover, the Na-ion deficiency can stabilize the phase structure and morphology of NCPO5 during the OER and ORR processes. This study highlights the Na-ion deficient Na
CoP
O
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CoP
O
catalysts are proposed to efficiently electrocatalyze OER and ORR in alkaline solution. The engineering of Na-ion deficiency can tune the electronic structure of Co, and thus tailor the intrinsically electrocatalytic performance. Among the sodium cobalt phosphate catalysts, the Na
CoP
O
(NCPO5) catalyst exhibits the lowest ΔE (E
-E
) of only 0.86 V, which favorably outperforms most of the reported non-noble metal catalysts. Moreover, the Na-ion deficiency can stabilize the phase structure and morphology of NCPO5 during the OER and ORR processes. This study highlights the Na-ion deficient Na
CoP
O
as a promising class of low-cost, highly active and robust bifunctional catalysts for OER and ORR.</description><issn>0947-6539</issn><issn>1521-3765</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAQRS0EoqWwZYlmjxLsOIntZYnKQ6poVWAd2Y5NDWlSxQmiP8E3kz7oau7i3CvNQeia4JBgHN3ppVmFESYCEx7zEzQkSUQCytLkFA2xiFmQJlQM0IX3nxhjkVJ6jgaURJSJhA_Rb1YDvYVg4fQSXiSQUCSQ1XOIYAYM5svar5eyNR6kh4m1TjtTtXDvbFfp1tWVLCGTrSw3vvVg6wZmP5sPU8Hkuy67LQCyKmBhim6H90nuggdXwbj8kqWrDLwe4Et0ZmXpzdXhjtD7w-Qtewqms8fnbDwNNMGMB0aalHKKDcVKU804joTqf7KxYhHhhhqiOeE6jZUtLGXWKiKV6H0oU5AkoSMU7nd1U3vfGJuvG7eSzSYnON-Kzbdi86PYvnCzL6w7tTLFEf83Sf8AH5RzrQ</recordid><startdate>20190822</startdate><enddate>20190822</enddate><creator>Gui, Liangqi</creator><creator>Miao, Xiaoyun</creator><creator>Lei, Chengjun</creator><creator>Wang, Kailin</creator><creator>Zhou, Wei</creator><creator>He, Beibei</creator><creator>Wang, Qing</creator><creator>Zhao, Ling</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-9500-3110</orcidid></search><sort><creationdate>20190822</creationdate><title>Co 3+ -Rich Na 1.95 CoP 2 O 7 Phosphates as Efficient Bifunctional Catalysts for Oxygen Evolution and Reduction Reactions in Alkaline Solution</title><author>Gui, Liangqi ; Miao, Xiaoyun ; Lei, Chengjun ; Wang, Kailin ; Zhou, Wei ; He, Beibei ; Wang, Qing ; Zhao, Ling</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1078-eae63830e30bc3c78029b123f4b7218e3e1c818c64bfdf37ffb1ab9094bed1553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gui, Liangqi</creatorcontrib><creatorcontrib>Miao, Xiaoyun</creatorcontrib><creatorcontrib>Lei, Chengjun</creatorcontrib><creatorcontrib>Wang, Kailin</creatorcontrib><creatorcontrib>Zhou, Wei</creatorcontrib><creatorcontrib>He, Beibei</creatorcontrib><creatorcontrib>Wang, Qing</creatorcontrib><creatorcontrib>Zhao, Ling</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Chemistry : a European journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gui, Liangqi</au><au>Miao, Xiaoyun</au><au>Lei, Chengjun</au><au>Wang, Kailin</au><au>Zhou, Wei</au><au>He, Beibei</au><au>Wang, Qing</au><au>Zhao, Ling</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Co 3+ -Rich Na 1.95 CoP 2 O 7 Phosphates as Efficient Bifunctional Catalysts for Oxygen Evolution and Reduction Reactions in Alkaline Solution</atitle><jtitle>Chemistry : a European journal</jtitle><addtitle>Chemistry</addtitle><date>2019-08-22</date><risdate>2019</risdate><volume>25</volume><issue>47</issue><spage>11007</spage><epage>11014</epage><pages>11007-11014</pages><issn>0947-6539</issn><eissn>1521-3765</eissn><abstract>Implementing sustainable energy conversion and storage technologies is highly reliant on crucial oxygen electrocatalysis, such as the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR). However, the pursuit of low cost, energetic efficient and robust bifunctional catalysts for OER and ORR remains a great challenge. Herein, the novel Na-ion-deficient Na
CoP
O
catalysts are proposed to efficiently electrocatalyze OER and ORR in alkaline solution. The engineering of Na-ion deficiency can tune the electronic structure of Co, and thus tailor the intrinsically electrocatalytic performance. Among the sodium cobalt phosphate catalysts, the Na
CoP
O
(NCPO5) catalyst exhibits the lowest ΔE (E
-E
) of only 0.86 V, which favorably outperforms most of the reported non-noble metal catalysts. Moreover, the Na-ion deficiency can stabilize the phase structure and morphology of NCPO5 during the OER and ORR processes. This study highlights the Na-ion deficient Na
CoP
O
as a promising class of low-cost, highly active and robust bifunctional catalysts for OER and ORR.</abstract><cop>Germany</cop><pmid>31237958</pmid><doi>10.1002/chem.201901848</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-9500-3110</orcidid></addata></record> |
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source | Wiley Online Library Journals Frontfile Complete |
title | Co 3+ -Rich Na 1.95 CoP 2 O 7 Phosphates as Efficient Bifunctional Catalysts for Oxygen Evolution and Reduction Reactions in Alkaline Solution |
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