{"title":"酸性介质中高效析氢反应的多孔CeO2/CuO异质结构","authors":"Binod Raj Kc, Samira Munkaila, Bishnu Prasad Bastakoti","doi":"10.1002/open.202500115","DOIUrl":null,"url":null,"abstract":"<p><p>A composite electrocatalyst CeO<sub>2</sub>/CuO is fabricated for the hydrogen evolution reaction (HER) via a simple, facile, one-step hydrothermal method, using F-127 as a template and structure directing agent. The prepared composite CeO<sub>2</sub>/CuO shows top-notch HER activities with a small overpotential of 98 mV at 10 mA cm<sup>-2</sup> and just 160 mV overpotential to attain a current density of 50 mA cm<sup>-2</sup> with good stability for 20 h in an acidic medium. The enhanced catalytic activities of CeO<sub>2</sub>/CuO nanocomposite are attributed to their synergetic interface interaction, which lead to improved conductivity, reactive sites, and oxygen vacancies in their lattices. This study aims to advance the development of earth-abundant transition metal oxides-based electrocatalysts as economical, durable, and efficient HER electrocatalysts to replace noble metal-based materials in the future.</p>","PeriodicalId":9831,"journal":{"name":"ChemistryOpen","volume":" ","pages":"e2500115"},"PeriodicalIF":2.5000,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Porous CeO<sub>2</sub>/CuO Heterostructure for Efficient Hydrogen Evolution Reaction in an Acidic Medium.\",\"authors\":\"Binod Raj Kc, Samira Munkaila, Bishnu Prasad Bastakoti\",\"doi\":\"10.1002/open.202500115\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>A composite electrocatalyst CeO<sub>2</sub>/CuO is fabricated for the hydrogen evolution reaction (HER) via a simple, facile, one-step hydrothermal method, using F-127 as a template and structure directing agent. The prepared composite CeO<sub>2</sub>/CuO shows top-notch HER activities with a small overpotential of 98 mV at 10 mA cm<sup>-2</sup> and just 160 mV overpotential to attain a current density of 50 mA cm<sup>-2</sup> with good stability for 20 h in an acidic medium. The enhanced catalytic activities of CeO<sub>2</sub>/CuO nanocomposite are attributed to their synergetic interface interaction, which lead to improved conductivity, reactive sites, and oxygen vacancies in their lattices. This study aims to advance the development of earth-abundant transition metal oxides-based electrocatalysts as economical, durable, and efficient HER electrocatalysts to replace noble metal-based materials in the future.</p>\",\"PeriodicalId\":9831,\"journal\":{\"name\":\"ChemistryOpen\",\"volume\":\" \",\"pages\":\"e2500115\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2025-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"ChemistryOpen\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1002/open.202500115\",\"RegionNum\":4,\"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":"ChemistryOpen","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1002/open.202500115","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
以F-127为模板剂和结构导向剂，采用简单易行的一步水热法制备了CeO2/CuO复合电催化剂用于析氢反应。制备的CeO2/CuO复合材料在10 mA cm-2下的过电位为98 mV，过电位仅为160 mV，具有一流的HER活性，电流密度为50 mA cm-2，在酸性介质中具有良好的稳定性20 h。CeO2/CuO纳米复合材料的催化活性增强是由于它们的协同界面相互作用，从而提高了电导率、活性位点和晶格中的氧空位。本研究的目的是推动地球资源丰富的过渡金属氧化物基电催化剂的发展，使其成为未来替代贵金属基材料的经济、耐用、高效的HER电催化剂。
Porous CeO2/CuO Heterostructure for Efficient Hydrogen Evolution Reaction in an Acidic Medium.
A composite electrocatalyst CeO2/CuO is fabricated for the hydrogen evolution reaction (HER) via a simple, facile, one-step hydrothermal method, using F-127 as a template and structure directing agent. The prepared composite CeO2/CuO shows top-notch HER activities with a small overpotential of 98 mV at 10 mA cm-2 and just 160 mV overpotential to attain a current density of 50 mA cm-2 with good stability for 20 h in an acidic medium. The enhanced catalytic activities of CeO2/CuO nanocomposite are attributed to their synergetic interface interaction, which lead to improved conductivity, reactive sites, and oxygen vacancies in their lattices. This study aims to advance the development of earth-abundant transition metal oxides-based electrocatalysts as economical, durable, and efficient HER electrocatalysts to replace noble metal-based materials in the future.
期刊介绍：
ChemistryOpen is a multidisciplinary, gold-road open-access, international forum for the publication of outstanding Reviews, Full Papers, and Communications from all areas of chemistry and related fields. It is co-owned by 16 continental European Chemical Societies, who have banded together in the alliance called ChemPubSoc Europe for the purpose of publishing high-quality journals in the field of chemistry and its border disciplines. As some of the governments of the countries represented in ChemPubSoc Europe have strongly recommended that the research conducted with their funding is freely accessible for all readers (Open Access), ChemPubSoc Europe was concerned that no journal for which the ethical standards were monitored by a chemical society was available for such papers. ChemistryOpen fills this gap.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
