Achieving excellent and durable CO2 electrolysis performance on a dual-phase fuel electrode in solid oxide electrolysis cells
Achieving excellent and durable CO2 electrolysis performance on a dual-phase fuel electrode in solid oxide electrolysis cells
复制标题
在固体氧化物电解池中的双相燃料电极上实现优异且持久的 CO2 电解性能
DOI：
10.1016/j.jpowsour.2021.229599
复制
发表时间：
2021-04
影响因子：
9.2
通讯作者：
Fan Liangdong
中科院分区：
文献类型：
--
作者：
Li Yihang;Li Yanpu;Yu Lixiang;Hu Qicheng;Wang Qi;Maliutina Kristina;Fan Liangdong
Conversion of CO2into valuable chemicals through solid oxide electrolysis cells (SOECs) is a promising technology towards efficient utilization of CO2and reducing its emission. However, the well-established Ni-cermet fuel electrode is not applicable for high-concentration or pure CO2electrolysis due to the Ni oxidation and coking issues. Here, we report that a novel nominal Pr0.2Ca0.8Fe0.8Ni0.2O3-δperovskite fuel electrode, which is self-assembled into Pr(Ca)Fe(Ni)O3-δperovskite and Ca2Fe2O5brownmillerite dual-phase composite during the calcination process, possesses efficient CO2electrolysis activity. The presence of Ca2Fe2O5with abundant oxygen vacancies significantly improves CO2chemical adsorption and activation and Pr(Ca)Fe(Ni)O3-δserves charge carrier matrix, and consequently leads to a high CO2reduction reaction rate constant of 1.104 × 10−4cm−1at 800 °C as determined by the electrical conductivity relaxation method. The electrochemical performance of pure CO2electrolysis is investigated in model SOECs, exhibiting an excellent current density of 0.648 Acm−2at 1.5 V and 800 °C. Moreover, the cell shows no noticeable degradation under two constant current densities of 0.421 Acm−2at 800 °C and 0.3 Acm−2at 700 °C for nearly a total of 300 h. The present study reveals a novel strategy to develop dual-phase Pr(Ca)Fe(Ni)O3-δ-Ca2Fe2O5materials as a reliable electrode for pure CO2electrolysis.
登录
查看更多内容
基于复合材料双面空气电极的扁管固体氧化物电解槽电解CO2的可靠性
DOI：
10.1016/j.compositesb.2019.02.012
发表时间：
2019-06
期刊：
Composites Part B: Engineering
影响因子：
--
作者：
Li Xiaoxiang;Wang Yudong;Liu Wu;Wilson Joshua A.;Wang Jianxin;Wang Chengtian;Yang Jun;Xia Changrong;Zhou Xiao-Dong;Guan Wanbing
通讯作者：
Guan Wanbing
增强 SOEC 阴极 (Pr,Ba)2Mn2-yFeyO5 δ 层状钙钛矿原位溶解 Fe/MnOx 纳米颗粒的 CO2 催化活化和直接电还原
DOI：
10.1016/j.apcatb.2019.118389
发表时间：
--
期刊：
Applied Catalysis B: Environmental
影响因子：
--
作者：
Jianxin Zhu;Wenqiang Zhang;Yifeng Li;Wangxu Yue;Ga Geng;Bo Yu
通讯作者：
Bo Yu
阴极/电解质界面过渡层增强 CO2 电还原
DOI：
10.1016/j.jpowsour.2020.227743
发表时间：
2020-03
期刊：
J. Power Sources
影响因子：
--
作者：
Zhang Lixiao;Hu Shiqing;Li Wenping;Zhang Peng;Cao Zhongwei;Zhu Xuefeng;Yang Weishen
通讯作者：
Yang Weishen
固体氧化物电解池中 CO2 的电化学还原
影响因子：
13.1
作者：
Zhang Lixiao;Hu Shiqing;Zhu Xuefeng;Yang Weishen
通讯作者：
Yang Weishen
用于甲烷辅助蒸汽电解过程的镍渗透Sr2Fe1.5Mo0.5O6-delta-Ce0.8Sm0.2O1.9电极
影响因子：
5.4
作者：
Wang Yao;Xu Jiahui;Meng Xinyang;Liu Tong;Chen Fanglin
通讯作者：
Chen Fanglin