State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050 (P.R. China), Fax: (+86) 21-52413122.
ChemSusChem. 2014 Jan;7(1):135-45. doi: 10.1002/cssc.201301079. Epub 2013 Dec 30.
As one of the most important clean energy sources, proton exchange membrane fuel cells (PEMFCs) have been a topic of extensive research focus for decades. Unfortunately, several critical technique obstacles, such as the high cost of platinum electrode catalysts, performance degradation due to the CO poisoning of the platinum anode, and carbon corrosion by oxygen in the cathode, have greatly impeded its commercial development. A prototype of a single PEMFC catalyzed by a mesostructured platinum-free WO3/C anode and a mesostructured carbon-free Pt/WC cathode catalysts is reported herein. The prototype cell exhibited 93% power output of a standard PEMFC using commercial Pt/C catalysts at 50 and 70 °C, and more importantly, CO poisoning-free and carbon corrosion-resistant characters of the anode and cathode, respectively. Consequently, the prototype cell demonstrated considerably enhanced cell operation durability. The mesostructured electrode catalysts are therefore highly promising in the future development and application of PEMFCs.
作为最重要的清洁能源之一，质子交换膜燃料电池（PEMFC）已经成为几十年来广泛研究的焦点。不幸的是，一些关键的技术障碍，如铂电极催化剂的高成本、铂阳极的 CO 中毒导致的性能下降以及阴极中氧气对碳的腐蚀，极大地阻碍了其商业发展。本文报道了一种由介孔无铂 WO3/C 阳极和介孔无碳 Pt/WC 阴极催化剂催化的单 PEMFC 原型。该原型电池在 50°C 和 70°C 下使用商业 Pt/C 催化剂时的功率输出达到了标准 PEMFC 的 93%，更重要的是，阳极和阴极分别具有抗 CO 中毒和抗碳腐蚀的特性。因此，该原型电池表现出了显著增强的电池运行耐久性。因此，介孔电极催化剂在未来 PEMFC 的发展和应用中具有广阔的前景。
