A novel direct methanol fuel cell with sol–gel flux phase
A novel direct methanol fuel cell with sol–gel flux phase
复制标题
DOI：
10.1016/j.jpowsour.2009.12.065
复制
发表时间：
2010-06
影响因子：
9.2
通讯作者：
Jianfeng Ju;Donghui Wu;Cun-wang Ge;Yujun Shi
中科院分区：
文献类型：
--
作者：
Jianfeng Ju;Donghui Wu;Cun-wang Ge;Yujun Shi
以Na 2SiO 3或Si（OCH 3）4、甲醇和硫酸为原料，采用改进的溶胶-凝胶法制备了直接甲醇燃料电池的溶胶-凝胶助熔剂相，并用SEM对其进行了表征。研究了溶胶-凝胶助熔剂相的甲醇渗透性和电化学特性。溶胶-凝胶助熔剂相的多孔结构改变了甲醇的传质机理和过程。与1 molL − 1CH 3OH和1 molL − 1H 2SO 4的液相助熔剂相比，溶胶-凝胶助熔剂相的甲醇渗透率降低了90%以上。设计了一种新型溶胶-凝胶助流相直接甲醇燃料电池。其功率密度高于液相流电池。
The sol–gel flux phase of direct methanol fuel cell is prepared by the modified sol–gel method with starting materials of Na2SiO3or Si(OCH3)4, methanol and sulfuric acid, and characterized by SEM. The methanol permeability and electrochemical characteristics of the sol–gel flux phase are investigated. The mass transportation mechanism and the process of methanol has been changed by the porous structure of the sol–gel flux phase. The methanol permeability of the sol–gel flux phase decreases more than 90% compared with the liquid flux phase of 1molL−1CH3OH and 1molL−1H2SO4. A novel direct methanol fuel cell with sol–gel flux phase is designed. The power density of which is higher than that of the cell with liquid flux phase.