微液滴限域合成和调控空心多孔Ir基电解水催化剂及其传质促进作用

作     者：刘丽 黄婷 杨晓良 柳守杰 汪顺生 项琳琳 王功名 蒯龙 Li Liu;Ting Huang;Xiaoliang Yang;Shoujie Liu;Shunsheng Wang;Linlin Xiang;Gongming Wang;Long Kuai

作者机构：School of Chemical and Environmental EngineeringAnhui Laboratory of Clean Catalytic EngineeringKey Laboratory of Production and Conversion of Green HydrogenAnhui Polytechnic UniversityWuhu 241000China Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026China School of Materials Science and EngineeringAnhui UniversityHefei 230601China Institute of EnergyHefei Comprehensive National Science CenterHefei 230031China 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2024年第69卷第8期

页      面：1081-1090页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081702[工学-化学工艺] 0808[工学-电气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(22375004,22175163,and 21801003) Anhui Provincial Education Department(2023AH020014,2023AH010030,gxgnfx2021132) the University Synergy Innovation Program of Anhui Province(GXXT-2022-007) Science and Technology Program of Wuhu(2022yf60) the Natural Science Foundation of Anhui Province(2208085UD04) the Plan for Anhui Major Provincial Science&Technology Project(2021d05050006 and 202103a05020015) the Anhui Development and Reform Commission(AHZDCYCX-LSDT2023-07 and AHZDCYCX-LSDT2023-08) Anhui Polytechnic University(Youth Talent Training Program(2021)) 

主　　题：Microdrop-confined synthesis Porous hollow microspheres PEM electrolyzer Water splitting Mass transfer 

摘      要：Maximally exploiting the active sites of iridium catalysts is essential for building low-cost proton exchange membrane(PEM)electrolyzers for green H_(2)***,we report a novel microdrop-confined fusion/blasting(MCFB)strategy for fabricating porous hollow IrO_(1-x)microspheres(IrO_(1-x)-PHM)by introducing explosive gas mediators from a NaNO_(3)/glucose ***,the developed MCFB strategy is demonstrated to be general for synthesizing a series of Ir-based composites,including Ir-Cu,Ir-Ru,Ir-Pt,Ir-Rh,Ir-Pd,and Ir-Cu-Pd and other noble metals such as Rh,Ru,and *** hollow structures can be regulated using different organics with NaNO_(3).The assembled PEM electrolyzer with IrO_(1-x)-PHM as the anode catalyst(0.5 mg/cm^(2))displays an impressive polarization voltage of 1.593and 1.726 V at current densities of 1 and 2 A/cm^(2),respectively,outperforming commercial IrO_(x)catalysts and most of the ever-reported iridium catalysts with such low catalyst *** importantly,the breakdown of the polarization loss indicates that the improved performance is due to the facilitated mass transport induced by the *** study offers a versatile platform for fabricating efficient Irbased catalysts for PEM electrolyzers and beyond.