BaCe_(0.8)Fe_(0.1)Ni_(0.1)O_(3−δ)-impregnated Ni-GDC by phase-inversion as an anode of solid oxide fuel cells with on-cell dry methane reforming  

作　　者：Yanya Liu Jun Luo Cheng Li Bo Liu Dong Yan Jian Li Lichao Jia 

机构地区：[1]School of Materials Science and Engineering,State Key Laboratory of Materials Processing and Die&Mould Technology,Huazhong University of Science and Technology,Wuhan 430074,China

出　　处：《Journal of Advanced Ceramics》2024年第6期834-841,共8页先进陶瓷（英文）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52072134,52302255,and 52272205);the Key Research and Development Programs of Hubei Province(Nos.2021BCA149 and 2022BAA087);the Natural Science Foundation of Hubei Province(No.2021CFA072);the Special Fund for Science and Technology Innovation Teams of Shanxi Province(No.202304051001007).

摘　　要：BaCe_(0.8)Fe_(0.1)Ni_(0.1)O_(3−δ)(BCFN)in a perovskite structure is impregnated consecutively by BCFN solution and BCFN suspension into a phase-inversion prepared NiO–Gd_(0.1)Ce_(0.9)O_(2−δ)(GDC)scaffold as an anode for solid oxide fuel cells(SOFCs)with on-cell dry reforming of methane(DRM).The whole pore surface of the scaffold is covered by small BCFN particles formed by BCFN solution impregnation;the large pores near the scaffold surface are filled by BCFN aerogels with a high specific surface area produced by BCFN suspension impregnation,which act as a catalytic layer for on-cell DRM.After reduction,the anode consists of a Ni–GDC scaffold and BCFN particles with exsolved FeNi3 nanoparticles.This BCFN-impregnated Ni–GDC anode has higher electrical conductivity,electrochemical activity,and resistance to carbon deposition,with which the cell shows maximum power densities between 1.44 and 0.92 W·cm^(−2) when using H_(2) and between 1.09 and 0.50 W·cm^(−2) when using CO_(2)–CH_(4) at temperatures ranging from 750 to 600℃.A stable performance at 400 mA·cm^(−2) and 700℃is achieved using 45%CO_(2)–45%CH_(4)–10%N_(2) for more than 400 h without carbon deposition,benefiting from the impregnated BCFN aerogel with a high specific surface area and water adsorbability.

关 键 词：AEROGEL solid oxide fuel cells(SOFCs) phase-inversion dry reforming of methane(DRM) carbon resistance 

分 类 号：TQ174.758.11[化学工程—陶瓷工业] TM53[化学工程—硅酸盐工业]