燃料电池用高温无机质子传导材料研究进展  

Progress of inorganic proton transportation electrolyte for elevated temperature PEM fuel cells

作　　者：陈林[1] 唐浩林[1] 潘牧[1] 

机构地区：[1]武汉理工大学材料复合新技术国家重点实验室,湖北武汉430070

出　　处：《电源技术》2011年第10期1313-1316,共4页Chinese Journal of Power Sources

基　　金："863"项目(2008AA11A106;2009AA034400);国家自然科学基金(50802072);教育部博士点新教师基金(200804971052);中央高校基本科研业务费专项资金(2010-Ia-055)

摘　　要：详细总结了小分子无机酸、无机氧化物陶瓷、KDP型无机含氢氧化物和杂多酸作为质子传导材料的研究进展,并分析了这些材料作为燃料电池用高温质子传导电解质的可行性。发现无机氧化物陶瓷电导率较低、活化能较大;KDP型无机含氢氧化物需要转变为超质子态才可以高速传导质子,解决其低温电导问题是用于燃料电池的关键;小分子无机酸电导率很高,更多的研究应该集中于酸的固定问题;杂多酸具有良好的电导率和高温稳定性,进一步提高其有序化并附载在稳定的基体上有利于促进其在燃料电池高温电解质方面的应用。Inorganic electrolyte subjected to elevated temperature membrane for PEM fuel cells has attracted much of attention because of the high temperature stability and the low dependence of conductivity on liquid water. Herein, the approaches of little molecule acid, inorganic oxide ceramics, KDP type H-containing oxide compounds and heteropoly acid （HPAs） to elevated temperature proton transportation were summarized. The results suggest that the inorganic oxide ceramics has both of low conductivity and high active energy that is unfavorable to proton conduction at elevated temperature. The KDP type H-containing oxide compounds have high conductivity under elevated temperature and superprotonic phase, but the conductivity is very small at low temperature. For the highly conductive little molecule acid, more attention should be paid on the stability of the acid under humidity condition. HPAs have both of high conductivity and low active energy for proton transportation and high quality ordering through selective supports will further improve the conductivity and stability of HPAs as the electrolyte for fuel cells.

关 键 词：质子交换膜燃料电池 无机电解质 高温 质子电导率 

分 类 号：TM911[电气工程—电力电子与电力传动]