{"title":"碱金属离子在双功能co - mn -混合磷酸盐协同电催化中的作用。","authors":"Savi Chaudhary, Ramaswamy Murugavel","doi":"10.1002/asia.202401177","DOIUrl":null,"url":null,"abstract":"<p>Developing cost-effective, non-precious metal bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for advancing sustainable energy storage and conversion technologies, including zinc-air batteries, fuel cells, and water electrolyzers. This study presents a one-pot synthesis of cobalt-manganese mixed phosphates as effective bifunctional electrocatalysts for both ORR and OER. Among the catalysts tested, <b>Na−Co−Mn−P</b> [NaCo<sub>1.5</sub>Mn<sub>1.5</sub>(HPO<sub>4</sub>)<sub>2</sub>(PO<sub>4</sub>)] exhibited the highest catalytic activity, with a minimal ΔE of 0.86 V, indicating superior performance. The incorporation of alkali metals and the synergistic effects of metal and phosphate components enhance conductivity, electrochemical surface area, and mixed valency of transition metals, contributing to improved electrocatalytic activity. This work highlights a straightforward synthesis method and the beneficial role of metal-phosphate synergy in oxygen electrocatalysis.</p>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"20 5","pages":""},"PeriodicalIF":3.5000,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The Role of Alkali Metal Ions in Cooperative Electrocatalysis by Bifunctional Co−Mn-Mixed Phosphates\",\"authors\":\"Savi Chaudhary, Ramaswamy Murugavel\",\"doi\":\"10.1002/asia.202401177\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Developing cost-effective, non-precious metal bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for advancing sustainable energy storage and conversion technologies, including zinc-air batteries, fuel cells, and water electrolyzers. This study presents a one-pot synthesis of cobalt-manganese mixed phosphates as effective bifunctional electrocatalysts for both ORR and OER. Among the catalysts tested, <b>Na−Co−Mn−P</b> [NaCo<sub>1.5</sub>Mn<sub>1.5</sub>(HPO<sub>4</sub>)<sub>2</sub>(PO<sub>4</sub>)] exhibited the highest catalytic activity, with a minimal ΔE of 0.86 V, indicating superior performance. The incorporation of alkali metals and the synergistic effects of metal and phosphate components enhance conductivity, electrochemical surface area, and mixed valency of transition metals, contributing to improved electrocatalytic activity. This work highlights a straightforward synthesis method and the beneficial role of metal-phosphate synergy in oxygen electrocatalysis.</p>\",\"PeriodicalId\":145,\"journal\":{\"name\":\"Chemistry - An Asian Journal\",\"volume\":\"20 5\",\"pages\":\"\"},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-12-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chemistry - An Asian Journal\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/asia.202401177\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemistry - An Asian Journal","FirstCategoryId":"1","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/asia.202401177","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
The Role of Alkali Metal Ions in Cooperative Electrocatalysis by Bifunctional Co−Mn-Mixed Phosphates
Developing cost-effective, non-precious metal bifunctional electrocatalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is crucial for advancing sustainable energy storage and conversion technologies, including zinc-air batteries, fuel cells, and water electrolyzers. This study presents a one-pot synthesis of cobalt-manganese mixed phosphates as effective bifunctional electrocatalysts for both ORR and OER. Among the catalysts tested, Na−Co−Mn−P [NaCo1.5Mn1.5(HPO4)2(PO4)] exhibited the highest catalytic activity, with a minimal ΔE of 0.86 V, indicating superior performance. The incorporation of alkali metals and the synergistic effects of metal and phosphate components enhance conductivity, electrochemical surface area, and mixed valency of transition metals, contributing to improved electrocatalytic activity. This work highlights a straightforward synthesis method and the beneficial role of metal-phosphate synergy in oxygen electrocatalysis.
期刊介绍：
Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics.
Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews.
A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal.
Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).
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