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Electroreduction of Nitrobenzene on WC Powder Electrode Xu Zhihua, Gan Yongping,
Ma Chun’an, Li Meichao, Huang Hui Abstract Results
of WC powder electrode measured by XRD and SEM show that only WC is contained in the
powder electrode and the surface of the electrode is consisted of fine and homogeneous WC
particles and PTFE. And the electroreduction process of nitrobenzene on WC powder
electrode in basic solution is investigated by cyclic voltammetry, linear potential sweep
and chronoamperometry. In the process of electroreduction of nitrobenzene on WC powder
electrode, liquid phase mass transferring may be the control step. Based on the study, the
mechanism of reduction of nitrobenzene on WC power electrode is also discussed. 硝基苯在碳化钨粉末电极上的电催化还原 徐志花 甘永平 马淳安 李美超 黄
辉 摘要
用XRD和SEM测试碳化钨(WC)粉末电极的结果表明：该粉末主要以WC单相存在，粉末电极中WC粉末与聚四氟乙烯(PTFE)粘结剂混合得很均匀，电极表面较均匀、平整。并且也用循环伏安、线性扫描和恒电位阶跃等测试方法研究了碳化钨粉末电极在碱性介质中析氢和还原硝基苯的电化学特性，发现碳化钨在电催化还原硝基苯过程中，可能主要受反应物的液相传质控制。另外，对其催化还原硝基苯的机理也进行了初步探索。 徐志花 女，24岁，硕士生，现从事超细碳化钨微结构及其电催化性能的研究。 E-mail:xuzhihua78@sina.com.cn |