H2S固体氧化物燃料电池脱硫特性  

Desulphurization Characteristic of H_2S/Air Solid Oxide Fuel Cell

作　　者：冯凤[1] 曲虹霞[1] 谭文轶[2] 钟秦[1] 

机构地区：[1]南京理工大学化工学院,南京210094 [2]南京工程学院动力工程系,南京

出　　处：《应用化学》2008年第2期199-203,共5页Chinese Journal of Applied Chemistry

基　　金：江苏省自然科学基金项目(BK2006208)

摘　　要：研究了由H2S气体,(CoS-Mo2S)/BaCe0.475Zr0.475Y0.05O3-δ/Ag,空气构成的质子传导型固体氧化物燃料电池的制备和电性能,以及在常压、温度范围为600～800℃时,温度和燃料气流量对H2S脱除率的影响。结果表明,H2S脱除率与电流密度之间呈线性关系;电池电流密度和H2S脱除率均随温度的升高而增大,电池适宜工作温度范围为700～800℃;在30～80mL/min范围内,H2S脱除率随燃料气流量增加而增大;在反应温度为800℃、燃料气流量为80mL/min的条件下,电池开路电压为0.72V,最大电流密度为2.9×10-2A/cm2,H2S脱除率可达71%。The proton-conducting solid oxide fuel cell composed of H2S,（ CoS-Mo2S）/BaCe0.475Zr0.475Y0.05O3-δ/Ag, air was studied at atmospheric pressure and 600 - 800 ℃ with the aim of preparation and performance of the cell, the effects of different temperatures and different fuel flow rates on the removal of H2S. The results indicate that the removal of H2S was linearly proportional to current density. The performance of the cell and H2S removal were improved by increasing temperature, the optimal working temperature was in a range of 700 - 800℃. Increasing fuel flow rate promoted the removal of H2S between 30 - 80 mL/min. 71% of H2S removal was obtained at 800 ℃ and 80 mL/min, with an open circuit voltage of 0.72 V and a maximum current density of 2.9 × 10^-2 A/cm^2.

关 键 词：固体氧化物燃料电池 硫化氢 质子传导 电解质 阳极 

分 类 号：O646[理学—物理化学]