Preparation and characterization of sulfated zirconia(SO42-/ZrO2)/Nafion composite membranes for PEMFC operation at high temperature/low humidity

	Preparation and characterization of sulfated zirconia(SO42-/ZrO2)/Nafion composite membranes for PEMFC operation at high temperature/low humidity
	Zhai, Yunfeng ; Zhang, Huamin ; Hu, Jingwei ; Yi, Baolian
刊名	journal of membrane science
	2006-09-01
卷号	280 期号:1-2 页码:148-155
关键词	sulfated zirconia composite membrane S-ZrO2/Nafion high temperature PEMFC ion exchange capacity
英文摘要	fine particle superacidic sulfated zirconia (so42-/zro2, s-zro2) was synthesized by ameliorated method, and composite membranes with different s-zro2 contents were prepared by a recasting procedure from a suspension of s-zro2 powder and nation solution. the physico-chemical properties of the membranes were studied by ion exchange capacity (iec) and liquid water uptake measurements, scanning electron microscopy (sem) and x-ray diffraction (xrd) analysis, thermogravimetry-mass spectrometry (tg-ms) and fourier transform infrared (fr-ir) spectroscopy. the results showed that the iec of composite membrane increased with the content of s-zro2, s-zro2 was compatible with the nafion matrix, the incorporation of the s-zro2 could increase the crystallinity and also improve the initial degradation temperature of the composite membrane. the performance of single cell was the best when the s-zro2 content was 15 wt.%, and achieved 1.35 w/cm(2) at 80 degrees c and 0.99 w/cm(2) at 120 degrees c based on h-2/o-2 and at a pressure of 2 atm, the performance of the single cell with optimized s-zro2 was far more than that of the nation at the same condition (e.g. 1.28w/cm(2) at 80 degrees c, 0.75 w/cm(2) at 120 degrees c). the 15 wt.% s-zro2/nafion composite membrane showed lower fuel cell internal resistance than nation membranes at high temperature and low relative humidity (rh). (c) 2006 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; technology ; physical sciences
类目[WOS]	engineering, chemical ; polymer science
研究领域[WOS]	engineering ; polymer science
关键词[WOS]	fuel-cells ; proton conductivity ; zirconia ; acid ; catalysts ; nafion ; 100-degrees-c
收录类别	SCI
语种	英语
WOS记录号	WOS:000239472900019
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/139957]
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, Proton Exchange Membrane Fuel Cell Key Mat & Tech, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Zhai, Yunfeng,Zhang, Huamin,Hu, Jingwei,et al. Preparation and characterization of sulfated zirconia(SO42-/ZrO2)/Nafion composite membranes for PEMFC operation at high temperature/low humidity[J]. journal of membrane science,2006,280(1-2):148-155.
APA	Zhai, Yunfeng,Zhang, Huamin,Hu, Jingwei,&Yi, Baolian.(2006).Preparation and characterization of sulfated zirconia(SO42-/ZrO2)/Nafion composite membranes for PEMFC operation at high temperature/low humidity.journal of membrane science,280(1-2),148-155.
MLA	Zhai, Yunfeng,et al."Preparation and characterization of sulfated zirconia(SO42-/ZrO2)/Nafion composite membranes for PEMFC operation at high temperature/low humidity".journal of membrane science 280.1-2(2006):148-155.