Properties of Polymer Electrolyte Membranes Based on Poly(Aryl Ether Benzimidazole) and Sulphonated Poly(Aryl Ether Benzimidazole) for High Temperature PEMFCs

	Properties of Polymer Electrolyte Membranes Based on Poly(Aryl Ether Benzimidazole) and Sulphonated Poly(Aryl Ether Benzimidazole) for High Temperature PEMFCs
	Dai, H.1,2; Zhang, H.1; Zhong, H.1; Jin, H.1,2; Li, X.1; Xiao, S.1,2; Mai, Z.1,2
刊名	fuel cells
	2010-10-01
卷号	10 期号:5 页码:754-761
关键词	Fuel Cell Performance High Temperature PEMFCs OPBI Properties SOPBI
英文摘要	membranes based on poly[2,2'-(p-oxydiphenylene)-5,5'-bibenzimidazole] (opbi) and their sulphonated derivatives (sopbi) were prepared and first investigated for high temperature proton exchange membrane fuel cells. opbi and sopbi membranes with good chemical stability were prepared by casting from their dimethyl sulphoxide ( dmso) solution and then impregnated in phosphoric acid baths to obtain h(3)po(4) (pa)-doped membranes. the properties of pa-doped opbi membranes, including phosphoric acid uptake, swelling ratio, mechanical properties and thermal properties, were fully investigated and compared with pa-doped sopbi membranes. the fuel cell performances of pa-doped opbi and sopbi membranes at different temperatures were first evaluated. when doped in different concentrations of h(3)po(4) solution, opbi membranes adsorb more acid than sopbi membranes. sopbi membranes exhibit obviously lower swelling ratio in thickness direction than that of opbi membranes. with an acid uptake of similar to 110 wt.%, corresponding doping level around 5, pa-doped opbi and sopbi membranes keep reasonably high tensile strength. pa-doped opbi membranes exhibit peak power density of 0.78 w cm(-2) at 170 degrees c and 0.25 mpa. with the same acid uptake, pa-doped sopbi membranes displayed similar fuel cell performance to that of pa-doped opbi membranes.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	electrochemistry ; energy & fuels
研究领域[WOS]	electrochemistry ; energy & fuels
关键词[WOS]	acid doped polybenzimidazole ; fuel-cell application ; phosphoric-acid ; pbi ; conduction
收录类别	SCI
语种	英语
WOS记录号	WOS:000284057800003
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141887]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab PEMFC Key Mat & Technol, Dalian 116023, Liaoning, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Dai, H.,Zhang, H.,Zhong, H.,et al. Properties of Polymer Electrolyte Membranes Based on Poly(Aryl Ether Benzimidazole) and Sulphonated Poly(Aryl Ether Benzimidazole) for High Temperature PEMFCs[J]. fuel cells,2010,10(5):754-761.
APA	Dai, H..,Zhang, H..,Zhong, H..,Jin, H..,Li, X..,...&Mai, Z..(2010).Properties of Polymer Electrolyte Membranes Based on Poly(Aryl Ether Benzimidazole) and Sulphonated Poly(Aryl Ether Benzimidazole) for High Temperature PEMFCs.fuel cells,10(5),754-761.
MLA	Dai, H.,et al."Properties of Polymer Electrolyte Membranes Based on Poly(Aryl Ether Benzimidazole) and Sulphonated Poly(Aryl Ether Benzimidazole) for High Temperature PEMFCs".fuel cells 10.5(2010):754-761.