{"title":"CeO2表面工程与PtBi纳米板间p-d轨道杂化的协同效应在甲醇电氧化中的应用","authors":"Yan’ao Zhang \n (, ), Shuai Wang \n (, ), Feiyan Si \n (, ), Ruixin Xue \n (, ), Yipin Lv \n (, ), Guozhu Chen \n (, ), Daowei Gao \n (, )","doi":"10.1007/s40843-023-2866-y","DOIUrl":null,"url":null,"abstract":"<div><p>Modulating the electronic structure of Pt is an effective strategy for enhancing the activity and durability of Pt-based electrocatalysts. Herein, we reported a type of intermetallic CeO<sub>2</sub>/PtBi nanoplates (NPs), which possessed enhanced activity and durability for methanol electro-oxidation reaction (MOR) through strong p-d hybridization between the Pt and Bi. The surface-deposited CeO<sub>2</sub> can further optimize the electronic structure of Pt, while providing more hydroxyl adsorption sites. Specifically, the CeO<sub>2</sub>/PtBi NPs exhibited excellent mass activity for MOR in both acidic and alkaline environments, which were 1.62 and 7.65 times higher than those of commercial Pt/C, respectively. After 1000 durability tests in acidic and alkaline environments, the activities of CeO<sub>2</sub>/PtBi NPs only decreased by 20.1% and 39.8%, respectively, while the activities of commercial Pt/C decreased by 55.4% and 78.5%, respectively. The excellent activity and durability can be attributed to the modulation of the electronic structure through p-d orbital hybridization between Pt, Bi and the surface-deposited CeO<sub>2</sub>. This study provides new insights into the electronic structure regulation of Pt-based electrocatalysts.\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"67 6","pages":"1975 - 1984"},"PeriodicalIF":6.8000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistic effects of p-d orbital hybridization and CeO2 surface engineering on PtBi nanoplates for methanol electro-oxidation\",\"authors\":\"Yan’ao Zhang \\n (, ), Shuai Wang \\n (, ), Feiyan Si \\n (, ), Ruixin Xue \\n (, ), Yipin Lv \\n (, ), Guozhu Chen \\n (, ), Daowei Gao \\n (, )\",\"doi\":\"10.1007/s40843-023-2866-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Modulating the electronic structure of Pt is an effective strategy for enhancing the activity and durability of Pt-based electrocatalysts. Herein, we reported a type of intermetallic CeO<sub>2</sub>/PtBi nanoplates (NPs), which possessed enhanced activity and durability for methanol electro-oxidation reaction (MOR) through strong p-d hybridization between the Pt and Bi. The surface-deposited CeO<sub>2</sub> can further optimize the electronic structure of Pt, while providing more hydroxyl adsorption sites. Specifically, the CeO<sub>2</sub>/PtBi NPs exhibited excellent mass activity for MOR in both acidic and alkaline environments, which were 1.62 and 7.65 times higher than those of commercial Pt/C, respectively. After 1000 durability tests in acidic and alkaline environments, the activities of CeO<sub>2</sub>/PtBi NPs only decreased by 20.1% and 39.8%, respectively, while the activities of commercial Pt/C decreased by 55.4% and 78.5%, respectively. The excellent activity and durability can be attributed to the modulation of the electronic structure through p-d orbital hybridization between Pt, Bi and the surface-deposited CeO<sub>2</sub>. This study provides new insights into the electronic structure regulation of Pt-based electrocatalysts.\\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":773,\"journal\":{\"name\":\"Science China Materials\",\"volume\":\"67 6\",\"pages\":\"1975 - 1984\"},\"PeriodicalIF\":6.8000,\"publicationDate\":\"2024-05-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Science China Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s40843-023-2866-y\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s40843-023-2866-y","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Synergistic effects of p-d orbital hybridization and CeO2 surface engineering on PtBi nanoplates for methanol electro-oxidation
Modulating the electronic structure of Pt is an effective strategy for enhancing the activity and durability of Pt-based electrocatalysts. Herein, we reported a type of intermetallic CeO2/PtBi nanoplates (NPs), which possessed enhanced activity and durability for methanol electro-oxidation reaction (MOR) through strong p-d hybridization between the Pt and Bi. The surface-deposited CeO2 can further optimize the electronic structure of Pt, while providing more hydroxyl adsorption sites. Specifically, the CeO2/PtBi NPs exhibited excellent mass activity for MOR in both acidic and alkaline environments, which were 1.62 and 7.65 times higher than those of commercial Pt/C, respectively. After 1000 durability tests in acidic and alkaline environments, the activities of CeO2/PtBi NPs only decreased by 20.1% and 39.8%, respectively, while the activities of commercial Pt/C decreased by 55.4% and 78.5%, respectively. The excellent activity and durability can be attributed to the modulation of the electronic structure through p-d orbital hybridization between Pt, Bi and the surface-deposited CeO2. This study provides new insights into the electronic structure regulation of Pt-based electrocatalysts.
期刊介绍：
Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.
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