Bio-inspired Construction of Advanced Fuel Cell Cathode with Pt Anchored in Ordered Hybrid Polymer Matrix

IMR OpenIR

	Bio-inspired Construction of Advanced Fuel Cell Cathode with Pt Anchored in Ordered Hybrid Polymer Matrix
	Xia, Zhangxun; Wang, Suli; Jiang, Luhua; Sun, Hai; Liu, Shuang; Fu, Xudong; Zhang, Bingsen; Su, Dang Sheng; Wang, Jianqiang; Sun, Gongquan; gqsun@dicp.ac.cn
	2015
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	5 页码:-
摘要	The significant use of platinum for catalyzing the cathodic oxygen reduction reactions (ORRs) has hampered the widespread use of polymer electrolyte membrane fuel cells (PEMFCs). The construction of well-defined electrode architecture in nanoscale with enhanced utilization and catalytic performance of Pt might be a promising approach to address such barrier. Inspired by the highly efficient catalytic processes in enzymes with active centers embedded in charge transport pathways, here we demonstrate for the first time a design that allocates platinum nanoparticles (Pt NPs) at the boundaries with dual-functions of conducting both electrons by aid of polypyrrole and protons via Nafion (R) ionomer within hierarchical nanoarrays. By mimicking enzymes functionally, an impressive ORR activity and stability is achieved. Using this brand new electrode architecture as the cathode and the anode of a PEMFC, a high mass specific power density of 5.23 W mg(Pt)(-1) is achieved, with remarkable durability. These improvements are ascribed to not only the electron decoration and the anchoring effects from the Nafion r ionomer decorated PPy substrate to the supported Pt NPs, but also the fast charge and mass transport facilitated by the electron and proton pathways within the electrode architecture.
部门归属	[xia, zhangxun ; wang, suli ; jiang, luhua ; sun, hai ; liu, shuang ; fu, xudong ; sun, gongquan] chinese acad sci, dalian inst chem phys, dalian natl lab clean energy, div fuel cell & battery, dalian 116023, peoples r china ; [xia, zhangxun ; fu, xudong] univ chinese acad sci, beijing 100039, peoples r china ; [zhang, bingsen ; su, dang sheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [su, dang sheng] max planck gesell, fritz haber inst, d-14195 berlin, germany ; [wang, jianqiang] chinese acad sci, shanghai inst appl phys, shanghai synchrotron radiat facil, shanghai 201204, peoples r china
资助者	National Basic Research Program of China [2012CB215500]; National High-tech RD Programme [2012AA053401]; National Natural Science Foundation of China [21503228]
收录类别	sci
语种	英语
WOS记录号	WOS:000364134800002
引用统计	被引频次：47[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74652
专题	中国科学院金属研究所
通讯作者	gqsun@dicp.ac.cn
推荐引用方式 GB/T 7714	Xia, Zhangxun,Wang, Suli,Jiang, Luhua,et al. Bio-inspired Construction of Advanced Fuel Cell Cathode with Pt Anchored in Ordered Hybrid Polymer Matrix[J]. SCIENTIFIC REPORTS,2015,5:-.
APA	Xia, Zhangxun.,Wang, Suli.,Jiang, Luhua.,Sun, Hai.,Liu, Shuang.,...&gqsun@dicp.ac.cn.(2015).Bio-inspired Construction of Advanced Fuel Cell Cathode with Pt Anchored in Ordered Hybrid Polymer Matrix.SCIENTIFIC REPORTS,5,-.
MLA	Xia, Zhangxun,et al."Bio-inspired Construction of Advanced Fuel Cell Cathode with Pt Anchored in Ordered Hybrid Polymer Matrix".SCIENTIFIC REPORTS 5(2015):-.