| 空气电极氧还原过程研究 |
| |
| 引用本文： | 欧秀芹,梁广川,解飞,范飞,刘曙光.空气电极氧还原过程研究[J].中山大学学报(自然科学版),2005,44(Z2):91-94. |
| |
| 作者姓名： | 欧秀芹 梁广川 解飞 范飞 刘曙光 |
| |
| 作者单位： | 河北工业大学能源与环境材料研究所,天津,300131 |
| |
| 摘 要： | 通过测量空气阴极与镍阳极组成的电解析氧装置的氧气产出量,并根据单位时间内气量与电流的关系可定量地计算出氧还原的两种历程在反应中所占的比例.试验结果表明,仅以活性炭为电催化剂的空气电极2电子途径的反应占74%,以MnO2为催化剂的空气电极,当含量达33%时,4电子途径的反应达100%.此方法可动态研究反应过程中两种氧还原反应随时间的变化.
|
| 关 键 词： | 氧还原 反应历程 空气电极 催化剂 |
| 文章编号： | 0529-6579(2005)S2-0091-04 |
| 修稿时间： | 2005年7月10日 |
Study of the Oxygen Reduction Process on Air Cathode |
| |
| OU Xiu-qin,LIANG Guang-chuan,XIE Fei,FAN Fei,LIU Shu-guang.Study of the Oxygen Reduction Process on Air Cathode[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2005,44(Z2):91-94. |
| |
| Authors: | OU Xiu-qin LIANG Guang-chuan XIE Fei FAN Fei LIU Shu-guang |
| |
| Abstract: | The volume of oxygen generated from the electrolysis bath made up of an air cathode and nickel anode is measured, and the proportion of the two courses, 2e and 4e path oxygen reduction process, can be distinguished quantitatively according to the relation between the gas generation per minute and the current. The results show that the 2e path reaction covers 74% on the air cathode using active carbon as electrocatalyst,while the 4e path reaction covers up to 100% when the percentage of the catalyst MnO2 in the air catalyst layer of air electrode reaches 33%. This method can demonstrate the corresponding changes with time in the two kinds of oxygen reduction reaction. |
| |
| Keywords: | oxygen reduction air cathode reaction process catalyst |
| 本文献已被 万方数据 等数据库收录！ |
|
