以NiO为助烧剂Ce_(0.8)Gd_(0.1)Lu_(0.1)O_(2-α)电解质的烧结行为及其中温电性能  

Sintering behavior and intermediate temperature electrical properties of electrolyte Ce_(0.8)Gd_(0.1)Lu_(0.1)O_(2-α)with sintering aid NiO

作　　者：王守跃 黄燕庭 杨昊东 陈继堂 张震 王洪涛 WANG Shouyue;HUANG Yanting;YANG Haodong;CHEN Jitang;ZHANG Zhen;WANG Hongtao(School of Chemical and Material Engineering,Fuyang Normal University,Anhui Fuyang 236037,China)

机构地区：[1]阜阳师范大学化学与材料工程学院,安徽阜阳236037

出　　处：《阜阳师范大学学报(自然科学版)》2024年第4期44-49,共6页Journal of Fuyang Normal University:Natural Science

基　　金：安徽省高校自然科学研究重点项目(No.KJ2021A0681,2022AH051327);阜阳师范大学科研项目(No.RCXM20180002,204009157,204009160,2052781302)。

摘　　要：本研究合成了Lu^(3+)和Ga^(3+)共掺杂的CeO_(2)(Ce_(0.8)Gd_(0.1)Lu_(0.1)O_(2-α),CGL)和CGL-2 wt%的NiO(CGL-2NiO),以研究烧结助剂的添加对样品结构、形貌和电导率的影响。并进一步对氧浓差放电电池和燃料电池进行了研究。XRD图谱表明800℃CGL、CGL和CGL-2NiO的相结构均为立方萤石CeO_(2)固溶体。CGL和CGL-2NiO的氧浓差放电电池表明在氧化性气氛下样品是良好的氧离子导体。CGL和CGL-2NiO在750℃空气中的电导率分别达到2.4×10^(-2)S·cm^(-1)和1.8×10^(-2)S·cm^(-1)。In this study,Lu^(3+)and Ga^(3+)co-doped CeO_(2)(Ce0.8Gd0.1Lu0.1O_(2-α),CGL) and CGL-2 wt%NiO (CGL-2NiO)were synthesized to investigate the influence of the addition of sintering additive on the structures,morphologies and conductivities of the samples.The oxygen concentration discharge cell and fuel cell were further studied.XRD patterns showed that the phase structures of 800℃ CGL,CGL and CGL-2NiO were all cubic fluorite CeO_(2) solid solution.The oxygen concentration discharge cells of CGL and CGL-2NiO indicated that the samples are good oxide ion conductors under an oxidizing atmosphere.The conductivities of CGL and CGL-2NiO reached 2.4×10^(-2)S·cm^(-1)and 1.8×10^(-2)S·cm^(-1)at 750℃ in air,respectively.

关 键 词：燃料电池 电导率 二氧化铈 电解质 

分 类 号：TQ133.3[化学工程—无机化工] O614.33[理学—无机化学]