改善PEC用α-Fe_(2)O_(3)光阳极性能的策略  

Strategies to improve performance ofα-Fe_(2)O_(3) photoanode for PEC

作　　者：李春雷[1] 王思琪 金兴智 邵怡亮 郑毅[1] LI Chun-lei;WANG Si-qi;JIN Xing-zhi;SHAO Yi-liang;ZHENG Yi(College of Petrochemical Technology,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050

出　　处：《现代化工》2023年第1期62-66,共5页Modern Chemical Industry

基　　金：国家自然科学基金青年基金(21802060);2017年博士科研启动(061701)。

摘　　要：通过光电化学(PEC)电池将太阳能收集和储存为氢燃料,为未来的能源需求提供了一条清洁和可再生的途径。在多种常用材料中赤铁矿(α-Fe_(2)O_(3))由于其来源丰富、价格低廉、优异的光稳定性等特点,近几十年来一直是研究热点。对PEC水分解用赤铁矿光阳极的最新进展进行了综述。首先,介绍了掺杂手段提高赤铁矿体相电导率。其次,介绍了负载助催化剂和沉积表面钝化层改善赤铁矿表面反应的有效途径。以及引入中间层促进界面传输3个方面进行了综述。展望了PEC水分解用赤铁矿光电极的发展前景和面临的主要挑战。The collection and storage of solar energy into hydrogen fuel via photo electrochemistry(PEC)cells offers a clean and renewable route to future energy needs.Among a variety of commonly used materials,hematite(α-Fe_(2)O_(3))has been a research hotspot in recent decades due to its abundant source,low price and excellent photostability.This paper presents a review of latest advances in hematite photoanodes for PEC in water hydrolysis.Firstly,it presents the doping means for improving the conductivity of hematite bulk phase.Secondly,it presents effective ways to improve the surface reaction of hematite by loading co-catalysts and depositing surface passivation layers.Finally,it introduces the addition of an intermediate layer to promote interfacial transport.The development prospects of hematite photoanodes for PEC in water hydrolysis and main challenges faced are also foreseen.

关 键 词：赤铁矿 载流子传输 掺杂 表面修饰 界面修饰 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]