二甲醚电氧化增强电化学表面积的研究(英文)

• 作 者: 邵玉艳 尹鸽平 高云智
• 机 构: 哈尔滨工业大学应用化学系,哈尔滨工业大学应用化学系,哈尔滨工业大学应用化学系 哈尔滨150001,哈尔滨150001,哈尔滨150001
• 出 处: 无机化学学报
• 发表日期: 2005年07期
• 关键词: 甲醚 电化学 电化学表面积 电氧化 attributed hasbeen anode adsorbed creased desorption

The electrochemical surface area (ESA) of the half-membrane electrode assembly (HMEA) and dimethyl-ether (DME) electrooxidation on the HMEA were examined by cyclic voltammetry (CV). The ESAs of the electrode before and after DME electrooxidation were calculated from the integrated charge during the adsorption (and/or desorption) of atomic hydrogen minus the charge for the double layer charging in 0.5 mol·L-1 H2SO4. The increase in ESA was observed, and this was attributed to the change of catalyst layer structure, leading to a more effective contact between catalysts and the electrolyte Nafion.

The electrochemical surface area (ESA) of the half-membrane electrode assembly (HMEA) and dimethyl-ether (DME) electrooxidation on the HMEA were examined by cyclic voltammetry (CV). The ESAs of the electrode before and after DME electrooxidation were calculated from the integrated charge during the adsorption (and / or desorption) of atomic hydrogen minus the charge for the double layer charging in 0.5 mol·L-1 H2SO4. The increase in ESA was observed, and this was attributed to the change of catalyst layer structure leading to a more effective contact between catalysts and the electrolyte Nafion.