用溶胶-凝胶法制备了Sm2-xCexCuO4(SCC,x=0,0.1,0.2,0.3)粉体,干压成片状并烧结为陶瓷,采用XRD、SEM等对SCC粉体和陶瓷片的物象、形貌进行了表征.以SCC陶瓷片为阴极、Nafion膜为质子导体、Nj-Ce0.8Sm0.2:O2-δ(Ni-SDC)陶瓷片为阳极,银-铂网为集流体组成单电池,以湿氢气和氮气为原料,在298~373 K温度范围内研究了SCC在电化学合成氨中的性能.结果表明在研究的温度范围内和施加电压条件下,使用SCC为阴极均有氨气生成,其中Sm1.8Ce0.2CuO4电化学合成氨速率最高,在353 K时合成氨速率为1.05×10-8mol·s-1·cm-2.
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