{"title":"以 CeO2/氧化石墨烯为载体的 Pt-Pd 双功能催化剂用于强化甲醇电氧化","authors":"Qun Xiang, Yizhong Wang, Shuang Wang, Xucheng Fu, Guiqi Gao, Ruiwen Yan","doi":"10.1007/s12678-024-00875-w","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, the CeO<sub>2</sub> nanoparticles were dispersed onto the surface of graphene oxide (GO), followed by electrodeposition of Pt–Pd alloy nanoparticles on the CeO<sub>2</sub> surface to fabricate Pt–Pd@CeO<sub>2</sub>/graphene oxide composites (Pt–Pd@CeO<sub>2</sub>/GO). Morphological investigation was conducted using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The results of morphological characterization revealed that CeO<sub>2</sub> nanoparticles acted as cores, while Pt–Pd alloy nanoparticles formed shells. The electrocatalytic oxidation performance of Pt–Pd@CeO<sub>2</sub>/GO composites for methanol electro-oxidation reaction (MOR) was systematically investigated. The mass activity for MOR on Pt<sub>1</sub>Pd<sub>1.3</sub>@CeO<sub>2</sub>/GO electrocatalyst was 1128 mA·mg<sub>Pt+Pd</sub><sup>−1</sup>, which was 5.0-fold higher than that of Pt/C catalysts. The synergistic effect between Pt and Pd, along with the active oxygen-containing species of CeO<sub>2</sub> effectively enhanced catalytic activity. This work presents a novel approach to developing catalysts with high catalytic performance for MOR.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":535,"journal":{"name":"Electrocatalysis","volume":"15 4","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pt–Pd Bifunctional Catalysts Supported on CeO2/Graphene Oxide for Reinforced Methanol Electro-oxidation\",\"authors\":\"Qun Xiang, Yizhong Wang, Shuang Wang, Xucheng Fu, Guiqi Gao, Ruiwen Yan\",\"doi\":\"10.1007/s12678-024-00875-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, the CeO<sub>2</sub> nanoparticles were dispersed onto the surface of graphene oxide (GO), followed by electrodeposition of Pt–Pd alloy nanoparticles on the CeO<sub>2</sub> surface to fabricate Pt–Pd@CeO<sub>2</sub>/graphene oxide composites (Pt–Pd@CeO<sub>2</sub>/GO). Morphological investigation was conducted using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The results of morphological characterization revealed that CeO<sub>2</sub> nanoparticles acted as cores, while Pt–Pd alloy nanoparticles formed shells. The electrocatalytic oxidation performance of Pt–Pd@CeO<sub>2</sub>/GO composites for methanol electro-oxidation reaction (MOR) was systematically investigated. The mass activity for MOR on Pt<sub>1</sub>Pd<sub>1.3</sub>@CeO<sub>2</sub>/GO electrocatalyst was 1128 mA·mg<sub>Pt+Pd</sub><sup>−1</sup>, which was 5.0-fold higher than that of Pt/C catalysts. The synergistic effect between Pt and Pd, along with the active oxygen-containing species of CeO<sub>2</sub> effectively enhanced catalytic activity. This work presents a novel approach to developing catalysts with high catalytic performance for MOR.</p><h3>Graphical Abstract</h3>\\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":535,\"journal\":{\"name\":\"Electrocatalysis\",\"volume\":\"15 4\",\"pages\":\"\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2024-05-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrocatalysis\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12678-024-00875-w\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrocatalysis","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12678-024-00875-w","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Pt–Pd Bifunctional Catalysts Supported on CeO2/Graphene Oxide for Reinforced Methanol Electro-oxidation
In this work, the CeO2 nanoparticles were dispersed onto the surface of graphene oxide (GO), followed by electrodeposition of Pt–Pd alloy nanoparticles on the CeO2 surface to fabricate Pt–Pd@CeO2/graphene oxide composites (Pt–Pd@CeO2/GO). Morphological investigation was conducted using X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The results of morphological characterization revealed that CeO2 nanoparticles acted as cores, while Pt–Pd alloy nanoparticles formed shells. The electrocatalytic oxidation performance of Pt–Pd@CeO2/GO composites for methanol electro-oxidation reaction (MOR) was systematically investigated. The mass activity for MOR on Pt1Pd1.3@CeO2/GO electrocatalyst was 1128 mA·mgPt+Pd−1, which was 5.0-fold higher than that of Pt/C catalysts. The synergistic effect between Pt and Pd, along with the active oxygen-containing species of CeO2 effectively enhanced catalytic activity. This work presents a novel approach to developing catalysts with high catalytic performance for MOR.
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