高等学校化学学报2012，Vol.33Issue(5)：1007-1010,4.DOI:10.3969/j.issn.0251-0790.2012.05.025
直接甲醇燃料电池的Ir-Fe/C阴极催化剂性能
Electrocatalytic Performance of Cathodic Ir-Fe/C Catalyst in Direct Methanol Fuel Cell
摘要
Abstract
Ir-Fe/C catalyst was prepared. The electrocatalytic activity of the Ir-Fe/C catalyst for the oxygen reduction and its methanol tolerance ability were investigated, based on the characterization with X-ray diffrac-tometer(XRD) and energy dispersive spectrometer( EDS). The results show that the onset potentials of the oxygen reduction at the Ir/C and Ir-Fe/C catalyst electrodes are 0.57 and 0.65 V, respectively, and the current densities at 0. 2 V are 4. 6 and 5. 8 mA/cm2, respectively. It indicates that the electrocatalytic activity of the Ir-Fe/C catalyst for the oxygen reduction is better than that of the Ir/C catalyst. In addition, the Ir-Fe/C catalyst possesses the high methanol tolerance ability. These results lay a strong basis for the use of the Ir-Fe/C cathodic catalyst in direct methanol fuel cell(DMFC).关键词
碳载Ir-Fe催化剂/甲醇氧化/抗甲醇能力/直接甲醇燃料电池Key words
Carbon supported Ir-Fe catalyst/ Methanol oxidation/ Methanol tolerance ability/ Direct methanol fuel cell(DMFC)分类
化学化工引用本文复制引用
郭琦,李林儒,陆亮,季云,陆天虹..直接甲醇燃料电池的Ir-Fe/C阴极催化剂性能[J].高等学校化学学报,2012,33(5):1007-1010,4.基金项目
国家自然科学基金(批准号:21073094)和江苏高校优势学科建设工程资助项目资助. （批准号:21073094）
