QQ客服 官方微博 反馈留言

	Study of novel self-humidifying PEMFC with nano-TiO/sub 2/-based membrane
	Cheng Wang ; Zongqiang Mao ; Jingming Xu ; Xiaofeng Xie
	2010-05-10 ; 2010-05-10
会议名称	Key Engineering Materials ; 3rd International Conference on High-Performance Ceramics (CICC-3) ; Shenzhen, China ; INSPEC
关键词	Application Experimental/ adsorption electrochemistry ionic conductivity membranes nanoparticles nanotechnology polymer electrolytes proton exchange membrane fuel cells sol-gel processing titanium compounds water/ self-humidifying polymer electrolyte membranes proton exchange membrane fuel cells hygroscopic property cathode reaction water release particle preparation technology commercial Nafion 112 membrane in situ sol-gel reactions semitransparent membrane proton conductivity self-humidifying PEMFC dispersed nanometer-sized titanium dioxides nanosized TiO/sub 2/ particles adsorption TiO/sub 2/ H/sub 2/O/ A8630G Fuel cells A8120L Preparation of ceramics and refractories A8116 Methods of nanofabrication and processing A8245 Electrochemistry and electrophoresis A6630H Self-diffusion and ionic conduction in solid nonmetals A8265F Film and membrane processes ion exchange dialysis osmosis, electro-osmosis A6146 Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials A6845D Adsorption and desorption kinetics evaporation and condensation A8265M Sorption and accommodation coefficients (surface chemistry) B8410G Fuel cells/ TiO2/sur O2/sur Ti/sur O/sur TiO2/bin O2/bin Ti/bin O/bin H2O/ads H2/ads H/ads O/ads H2O/bin H2/bin H/bin O/bin
中文摘要	We propose self-humidifying polymer electrolyte membranes with highly dispersed nanometer-sized titanium dioxides for proton exchange membrane fuel cells operated with dry H/sub 2/ and O/sub 2/. The nanosized TiO/sub 2/ particles that have hygroscopic property are expected to adsorb the water produced from the cathode reaction and to release the water once the proton exchange membrane needs water. The preparation technology of nano-TiO/sub 2/ particles in a commercial Nafion 112 membrane via novel in situ sol-gel reactions was developed, resulting in a semitransparent membrane with uniform distribution of TiO /sub 2/ in the proton exchange membrane. It is found that proton conductivity increases observably by dispersing 3 wt% nano-TiO/sub 2 / in the proton exchange membrane at low humidity condition, and the newly prepared TiO/sub 2/-PEM improve the self-humidifying performance of proton exchange membrane fuel cell.
会议录出版者	Trans Tech Publications ; Switzerland
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/18826]
专题	清华大学
推荐引用方式 GB/T 7714	Cheng Wang,Zongqiang Mao,Jingming Xu,et al. Study of novel self-humidifying PEMFC with nano-TiO/sub 2/-based membrane[C]. 见:Key Engineering Materials, 3rd International Conference on High-Performance Ceramics (CICC-3), Shenzhen, China, INSPEC.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。