Bionic breathable open framework ionomer for medium-temperature fuel cells  

作　　者：Zidong Wei 

机构地区：[1]State Key Laboratory of Advanced Chemical Power Sources,School of Chemistry&Chemical Engineering,Chongqing University,Chongqing 400044,China

出　　处：《Science China Chemistry》2025年第2期407-408,共2页中国科学(化学英文版)

摘　　要：Hydrogen,a green and sustainable energy source characterized by its abundance,zero emission,and high-volumetric energy density,is widely recognized as the fuel of the future and a crucial driver of the global energy transition.Proton exchange membrane fuel cells(PEMFCs),renowned for their high energy conversion efficiency,environmental compatibility,and low noise,have become pivotal in hydrogen energy applications[1,2].As the demand for clean energy increases across various application scenarios,expectations for fuel cells to achieve high output power density,simplified thermal management,and improved tolerance to impurity gases are growing.A promising solution is to increase the operating temperature to develop medium-temperature PEMFCs(MT PEMFCs),which bridges the gap between low-temperature fuel cells and high-temperature phosphoric acid fuel cells.This approach significantly enhances catalyst activity and theoretically improves electrochemical reaction kinetics[3].Elevated temperatures also reduce heat rejection,leading to simplified thermal management systems,and enhance the catalyst’s resistance to gas impurities such as carbon monoxide,thereby broadening the range of usable hydrogen sources[3].

关 键 词：TRANSITION simplified CATALYST 

分 类 号：O64[理学—物理化学]