试题与答案

熔融盐燃料电池具有高的发电效率,因而受到重视。用Li2CO3和Na2CO3的熔融

题型:选择题

题目:

熔融盐燃料电池具有高的发电效率,因而受到重视。用Li2CO3和Na2CO3的熔融盐混合物作电解质,一极通CO气体,另一极通O2和CO2混合气体,可制得在650℃下工作的燃料电池。已知该电池总反应为:2CO+O2=2CO2。则下列说法中正确的是(   )

A.通CO的一极是电池的正极

B.该电池工作过程中需不断补充CO和O2,CO2可循环利用

C.负极反应式为:O2+2CO2+4e→2CO32

D.正极反应式为:2CO+2CO32→4CO2+4e

答案:

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