固体氧化物电解池氢电极材料研究进展  

Recent Progress on Hydrogen Electrode Materials for Solid Oxide Electrolysis Cell

作　　者：李程 周露 刘波 刘俨雅 唐宇杰 颜冬[1] 李箭[1] 贾礼超[1] LI Cheng;ZHOU Lu;LIU Bo;LIU Yanya;TANG Yujie;YAN Dong;LI Jian;JIA Lichao(School of Materials Science and Engineering,State Key Lab of Material Processing and Die&Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学材料科学与工程学院,材料成形与模具技术全国重点实验室,武汉430074

出　　处：《硅酸盐学报》2024年第6期1884-1899,共16页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(52072134);湖北省自然科学基金杰出青年项目(2021CFA072)。

摘　　要：作为一种可将电能转化为化学能的装置,固体氧化物电解池(SOEC)具备能量转化效率高、可逆操作能力以及绿色环保等特点。基于SOEC技术有望实现大规模绿氢制备,为国家“氢能”战略和“双碳”目标提供强大助力。氢电极是SOEC的最重要组成部分之一,其材料性能将直接决定电池电解制氢能力。本文总结了目前已有的SOEC氢电极材料体系,从氢电极反应机理、材料要求、电极材料物理-化学特性、电化学性能以及材料衰减等方面进行了系统性的论述。最后对SOEC氢电极材料的优化发展进行了分析和展望。As a device capable of converting electrical energy into chemical energy,solid oxide electrolysis cell(SOEC)has superior characteristics such as high energy conversion efficiency,reversible operation capability,and environmental friendliness.The hydrogen electrode as the direct site for the hydrogen evolution reaction(HER)is a crucial component of SOEC.Excellent hydrogen electrode materials require a chemical-structural stability under high-temperature reducing atmosphere,outstanding electrocatalytic activity,long-term operational stability,and cost-effectiveness.To meet these requirements,various types of hydrogen electrode materials are developed.However,their performance stability issues are evident,necessitating the overcoming of these challenges through materials development aligned with the unique demands of SOEC materials.It is thus essential to provide a systematic discussion on aspects such as the hydrogen electrode reaction mechanism(i.e.,hydrogen spillover,oxygen spillover),material requirements,physicochemical properties of electrode materials,electrochemical performance,and material degradation.This will facilitate subsequent research endeavors in this field.This review introduced cermet-based hydrogen electrodes,exemplified by materials such as Ni-Zr_(0.92)Y_(0.08)O_(2)(YSZ)and Ni-Gd_(0.2)Ce_(0.8)O_(2)(GDC).Cermet hydrogen electrodes composed of Ni and ceramic phases are widely used due to their excellent electrocatalytic performance of Ni,good mechanical strength,and lower cost.However,some issues such as Ni oxidation,migration,agglomeration,carbon deposition,and poor redox cycle stability during electrolysis of H2O and CO_(2) operations restrict the application of Ni-based cermet.This compels to seek novel hydrogen electrode materials to address these challenges,leading to the proposal of perovskite,with perovskite oxides as a representative category.Perovskite oxide is mixed ionic-electronic conductors(MIEC)material,so the reactive region can be expanded to the entire surface of the whole electro

关 键 词：氢能 固体氧化物电解池 氢电极 金属陶瓷 钙钛矿 

分 类 号：TK91[动力工程及工程热物理]