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Investigation of a High-Performance Nanofiber Cathode with Ultralow Platinum Loading for Proton Exchange Membrane Fuel Cells
Hong, Shaojing1,2; Hou, Ming1; Xiao, Yu3; Shao, Zhigang1; Yi, Baolian1
关键词Supported Catalysts Electrospinning Fuel Cells Platinum Proton Transport
刊名ENERGY TECHNOLOGY
2017-08-01
DOI10.1002/ente.201600734
5期:8页:1457-1463
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Technology
类目[WOS]Energy & Fuels
研究领域[WOS]Energy & Fuels
关键词[WOS]OXYGEN-TRANSPORT RESISTANCE ; GAS-DIFFUSION LAYERS ; REDUCTION REACTION ; MICROPOROUS LAYER ; CATALYST LAYER ; ELECTRODES ; ELECTROCATALYSTS ; NANOPARTICLES ; ARCHITECTURES ; DESIGN
英文摘要Nanofiber electrodes fabricated by using the electrospinning technique in the cathode of proton exchange membrane fuel cells gave a peak power density of 0.692Wcm(-2) with an ultralow Pt loading of 0.087mgcm(-2). As the cathode, the electrospun (E_spun) electrodes exposed a high Pt surface to oxygen, with a highly uniform distribution of Pt catalyst and Nafion ionomer, which improved the utilization of Pt. The ionic resistance of the E_spun electrode was decreased owing to the nanofiber structure. The high porosity of the E_spun electrode enhanced the Knudsen diffusion in small pores, which mitigated the oxygen-transfer resistance. The addition of 5wt% polytetrafluoroethylene (PTFE) to the E_spun electrode optimized water management, especially at high current densities. The accelerated stability test showed that the long-term durability of the E_spun electrode is much better than the conventional decal electrode due to the interaction of the carbon support and hydrophilic poly(acrylic acid).
语种英语
WOS记录号WOS:000407591200040
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149831
专题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, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Smart Gird Res Inst, Beijing 102211, Peoples R China
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GB/T 7714
Hong, Shaojing,Hou, Ming,Xiao, Yu,et al. Investigation of a High-Performance Nanofiber Cathode with Ultralow Platinum Loading for Proton Exchange Membrane Fuel Cells[J]. ENERGY TECHNOLOGY,2017,5(8):1457-1463.
APA Hong, Shaojing,Hou, Ming,Xiao, Yu,Shao, Zhigang,&Yi, Baolian.(2017).Investigation of a High-Performance Nanofiber Cathode with Ultralow Platinum Loading for Proton Exchange Membrane Fuel Cells.ENERGY TECHNOLOGY,5(8),1457-1463.
MLA Hong, Shaojing,et al."Investigation of a High-Performance Nanofiber Cathode with Ultralow Platinum Loading for Proton Exchange Membrane Fuel Cells".ENERGY TECHNOLOGY 5.8(2017):1457-1463.
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