Dongfeng Sun , Jiaxin Liu , Pengpeng Qiang , Wanquan Ma , Yanning Qu , Shukai Ding , Yu Yuan , Zhiru Li , Bingshe Xu
{"title":"多孔八面体结构Co2P/MoP/CC异质结的构建与调制以提高整体分水能力","authors":"Dongfeng Sun , Jiaxin Liu , Pengpeng Qiang , Wanquan Ma , Yanning Qu , Shukai Ding , Yu Yuan , Zhiru Li , Bingshe Xu","doi":"10.1016/j.electacta.2025.145915","DOIUrl":null,"url":null,"abstract":"<div><div>Designing efficient water splitting electrocatalysts in alkaline electrolytes is crucial but also presents significant challenges. In this study, Co<sub>2</sub>P/MoP/CC catalysts were synthesized using a hydrothermal method and in situ phosphorization with carbon cloth as the substrate. This unique porous octahedral structure features large specific surface area, exposing more active sites and aiding in bubble transportation. At a current density of 10 mA/cm², the overpotentials for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are 86 mV and 280 mV, respectively. This excellent performance is attributed to the formation of a Co<sub>2</sub>P/MoP heterojunction, which promotes electron transfer and enhances the adsorption strength of intermediates. In the overall water splitting experiment, only a low potential of 1.65 V is required to reach 10 mA/cm² and maintain stability for 100,000 seconds. This study offers a novel strategy for the development of efficient water electrolysis catalysts.</div></div>","PeriodicalId":305,"journal":{"name":"Electrochimica Acta","volume":"521 ","pages":"Article 145915"},"PeriodicalIF":5.6000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Construction and modulation of Co2P/MoP/CC heterojunction with porous octahedral structure to improve the Overall Water Splitting capacity\",\"authors\":\"Dongfeng Sun , Jiaxin Liu , Pengpeng Qiang , Wanquan Ma , Yanning Qu , Shukai Ding , Yu Yuan , Zhiru Li , Bingshe Xu\",\"doi\":\"10.1016/j.electacta.2025.145915\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Designing efficient water splitting electrocatalysts in alkaline electrolytes is crucial but also presents significant challenges. In this study, Co<sub>2</sub>P/MoP/CC catalysts were synthesized using a hydrothermal method and in situ phosphorization with carbon cloth as the substrate. This unique porous octahedral structure features large specific surface area, exposing more active sites and aiding in bubble transportation. At a current density of 10 mA/cm², the overpotentials for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are 86 mV and 280 mV, respectively. This excellent performance is attributed to the formation of a Co<sub>2</sub>P/MoP heterojunction, which promotes electron transfer and enhances the adsorption strength of intermediates. In the overall water splitting experiment, only a low potential of 1.65 V is required to reach 10 mA/cm² and maintain stability for 100,000 seconds. This study offers a novel strategy for the development of efficient water electrolysis catalysts.</div></div>\",\"PeriodicalId\":305,\"journal\":{\"name\":\"Electrochimica Acta\",\"volume\":\"521 \",\"pages\":\"Article 145915\"},\"PeriodicalIF\":5.6000,\"publicationDate\":\"2025-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Electrochimica Acta\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0013468625002786\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/24 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"ELECTROCHEMISTRY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electrochimica Acta","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0013468625002786","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/24 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
Construction and modulation of Co2P/MoP/CC heterojunction with porous octahedral structure to improve the Overall Water Splitting capacity
Designing efficient water splitting electrocatalysts in alkaline electrolytes is crucial but also presents significant challenges. In this study, Co2P/MoP/CC catalysts were synthesized using a hydrothermal method and in situ phosphorization with carbon cloth as the substrate. This unique porous octahedral structure features large specific surface area, exposing more active sites and aiding in bubble transportation. At a current density of 10 mA/cm², the overpotentials for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are 86 mV and 280 mV, respectively. This excellent performance is attributed to the formation of a Co2P/MoP heterojunction, which promotes electron transfer and enhances the adsorption strength of intermediates. In the overall water splitting experiment, only a low potential of 1.65 V is required to reach 10 mA/cm² and maintain stability for 100,000 seconds. This study offers a novel strategy for the development of efficient water electrolysis catalysts.
期刊介绍：
Electrochimica Acta is an international journal. It is intended for the publication of both original work and reviews in the field of electrochemistry. Electrochemistry should be interpreted to mean any of the research fields covered by the Divisions of the International Society of Electrochemistry listed below, as well as emerging scientific domains covered by ISE New Topics Committee.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
