QQ客服 官方微博 反馈留言

	Preparation and characterization of un-support Pt black catalyst for direct methanol fuel cells
	Wu Tao ; Xie Xiaofeng ; Guo Jianwei ; Wang Yaowu ; Tang Yougen
	2010-10-12 ; 2010-10-12
关键词	Practical Experimental/ catalysts direct methanol fuel cells electrochemistry materials preparation platinum scanning electron microscopy X-ray diffraction/ material preparation unsupport black catalyst direct methanol fuel cells citrate sodium capping agent reducing agent X-ray diffraction XRD scanning electron microscopy SEM electrochemistry active area method current-voltage performance Pt/ A8265J Heterogeneous catalysis at surfaces and other surface reactions A8120G Preparation of metals and alloys (compacts, pseudoalloys) A8630G Fuel cells A8245 Electrochemistry and electrophoresis B8410G Fuel cells/ Pt/el
中文摘要	Un-support Pt black catalyst was prepared using citrate sodium as a capping agent and NaBH/sub 4/ as a reducing agent in the liquid phase for direct methanol fuel cells. The influences of the pH and molar ratio of the Pt and citrate sodium on the catalyst properties were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and electrochemistry active area method, with the mechanism of citrate sodium's effect analyzed. The results show that the Pt black catalyst prepared with a Pt:C/sub 6/H/sub 5/O/sub 7//sup 3-/ molar ratio of 1:1 and pH = 8 gives the best performance. This Pt black catalyst has smaller particles 3. 7 nm in diameter, narrower distribution range and better single cell current-voltage performance than the commercial Pt black catalyst.
语种	中文
出版者	Tsinghua University Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/79302]
专题	清华大学
推荐引用方式 GB/T 7714	Wu Tao,Xie Xiaofeng,Guo Jianwei,et al. Preparation and characterization of un-support Pt black catalyst for direct methanol fuel cells[J],2010, 2010.
APA	Wu Tao,Xie Xiaofeng,Guo Jianwei,Wang Yaowu,&Tang Yougen.(2010).Preparation and characterization of un-support Pt black catalyst for direct methanol fuel cells..
MLA	Wu Tao,et al."Preparation and characterization of un-support Pt black catalyst for direct methanol fuel cells".(2010).

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。