| 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 | |
| Source Publication | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| Volume | 5Pages:- |
| Abstract | 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. |
| description.department | [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 |
| Funding Organization | National Basic Research Program of China [2012CB215500]; National High-tech RD Programme [2012AA053401]; National Natural Science Foundation of China [21503228] |
| Indexed By | sci |
| Language | 英语 |
| WOS ID | WOS:000364134800002 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/74652 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | gqsun@dicp.ac.cn |
| Recommended Citation 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):-. |
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