Ni、Ir、Cu浸渍对固体氧化物电解池阴极电催化还原CO_(2)性能的影响研究  

Effect of Ni,Ir and Cu impregnation on the performance of cathode electrocatalytic reduction CO_(2) in solid oxide electrolysis cell

作　　者：何德波 倪九派[1] 倪呈圣 HE Debo;NI Jiupai;NI Chengsheng(College of Resources and Environment,Southwest University,Chongqing 400715,China)

机构地区：[1]西南大学资源环境学院,重庆400715

出　　处：《能源环境保护》2021年第6期26-33,共8页Energy Environmental Protection

基　　金：国家自然科学基金资助项目“FeNbO_(4)基n型半导体氧化物材料作为对称SOFC电极的掺杂与性能研究”(51702264)。

摘　　要：为增加碳的回收利用并减少碳排放,采用浸渍法将质量百分比为1%的Ni、Ir和Cu浸渍到固体氧化物电解池La_(0.55)Sr_(0.45)Fe_(0.85)Mo_(0.15)O_(3)(LSFM)的阴极表面,分析浸渍物对母体钙钛矿电催化还原CO_(2)性能的影响。结果表明:与LSFM阴极相比,含1%Ir的LSFM(LSFM/Ir)阴极可将电流密度提高25%,其极化电阻R_(p)仅为LSFM的27%;含1%Ni的LSFM(LSFM/Ni)阴极表面形成的Ni-Fe纳米颗粒合金可显著提高阴极的抗积碳能力。In order to increase carbon recycling and reduce carbon emission,Ni,Ir and Cu with a mass percentage of 1% were impregnated on the cathode surface of solid oxide electrolysis cell named La_(0.55)Sr_(0.45)Fe_(0.85)Mo_(0.15)O_(3)(LSFM) by the impregnation method.The effect of impregnation on the electrocatalytic reduction of CO_(2) by parent perovskite was analyzed.The results indicate that compared with the LSFM cathode,the current density of the LSFM cathode with 1% of Ir(LSFM/Ir) is increased by 25%and its polarization resistance R_(p) is only 27% of that of the LSFM.The Ni-Fe nanoparticle alloy formed on the surface of the LSFM cathode with 1% of Ni(LSFM/Ni) can significantly improve the anti carbon deposition ability of the cathode.

关 键 词：CO_(2)还原 固体氧化物电解池 浸渍 电化学 

分 类 号：X511[环境科学与工程—环境工程]