Anodic Oxidation of Methanol at Palladium Electrode in Alkaline Solution
Anodic Oxidation of Methanol at Palladium Electrode in Alkaline Solution
复制标题
DOI：
10.1149/1.2423534
复制
发表时间：
1965-03
影响因子：
3.9
通讯作者：
T. Takamura;Ken'ichi Minamiyama
中科院分区：
文献类型：
--
作者：
T. Takamura;Ken'ichi Minamiyama
在碱性溶液中，通过测量甲醇和其他相关化合物的电流-电压曲线，并通过测定在试验电极上形成的氧化产物，证实了在活性钯电极上甲醇形成碳酸盐。在20 - 400 mamp/cm 2的电流密度范围内，观察到阳极氧化的电流效率超过80%。通过确定电化学反应级数（z），提出了氧化反应的可能机理。甲醇和氢氧根离子的z值分别为1/3和2/3。转移反应的活化过程被认为是氢氧根离子对甲氧基的氧化。
Carbonate formation from methanol at active palladium electrodes was confirmed in alkaline solution by measuring current‐voltage curves for methanol and other related compounds and by determining the oxidation products formed at the test electrode. The current efficiency in the anodic oxidation was observed to be over 80% in the current density range from 20 to 400 mamp/cm2. A probable mechanism was proposed for the oxidation reaction by determining the electrochemical reaction order (z). The z values obtained for methanol and hydroxide ion were 1/3 and 2/3, respectively. The activation process of the transfer reaction was considered to be the oxidation of methoxy radical by hydroxide ion.