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H2S源铈基固体氧化物燃料电池电化学性能研究
Study of electrochemical properties of SOFC based on ceria electrolyte utilizing H2S as fuel
【摘要】 采用甘氨酸-硝酸盐燃烧法制备出(CeO2)1-2x(Sm2O3)x固体电解质(简记作SDC)薄膜,以Ni-SDC、Ag分别作为固体氧化物燃料电池阳、阴极。在中温(650~750℃)条件下,该燃料电池对含H2S有害气体的脱除率最高可达到45%。在电流密度-电压(电功率密度)特性曲线中,当Sm∶Ce=2∶8时,作为氢源的H2S气体可使电池的开路电压为0.59V,电功率密度最高达到6.2mW/cm2。Ni-SDC可作为H2S-O2此类燃料电池的阳极替代材料。
【Abstract】 Glycine-nitrate combustion process(abbr,GNP) was adopted to prepare(CeO2)1-2x(Sm2O3)x(abbr,SDC) electrolyte membrane.In the range of 650~750℃,the removal of H2S was up to 45% while 10%H2S+90%N2 flow was used as anode fuel and air as cathode feed in the configuration such as Ni-SDC/SDC/Ag.On the other hand,the open circuit voltage was 0.59V and the maximum power density was 6.2mW/cm2 respectively in the SOFC configuration concerned above when the solid electrolyte composition ratio of Sm to Ce was equal to 0.2∶0.8.As a preliminary result,a Ni-SDC anode was a alternative material for H2S-air SOFC.
【Key words】 hydrogen sulfide; intermediate temperature; solid oxide fuel cell; anode;
- 【文献出处】 功能材料 ,Journal of Functional Materials , 编辑部邮箱 ,2005年09期
- 【分类号】TM911.4
- 【被引频次】1
- 【下载频次】160