高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (9): 1251.

• 论文 • 上一篇    下一篇

分子氮的电催化还原

吴也凡1, 王水菊2, 洪亮3, 林国栋3, 袁有珠3, 蔡启瑞3   

  1. 1. 厦门大学生物系, 厦门, 361005;
    2. 厦门大学实验中心;
    3. 厦门大学化学系
  • 收稿日期:1991-05-14 出版日期:1991-09-24 发布日期:1991-09-24
  • 通讯作者: 吴也凡

Electrocatalytic Reduction of Dinitrogen

Wu Ye-fan1, Wang Shui-ju2, Hong Liang3, Lin Guo-dong3, Yuan You-zhu3, Cai Qi-rui3   

  1. 1. Department of Biology, Xiamen University, Xiamen, 361005;
    2. Experiment Centre, Xiamen University;
    3. Department of Chemistry, Xiamen University
  • Received:1991-05-14 Online:1991-09-24 Published:1991-09-24

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摘要： 对温和条件下分子氮的络合活化已有研究,但用修饰电极法电催化固氮成氨(或肼)尚未见报道,Shilov等曾发现在V(OH)2-Mg(OH)2的悬浮液中,V(Ⅱ)可起络合及还原作用,钒固氮酶在缺钼条件下也可活化分子氮,其活性中心可能与钼酶相似,也是通过有机硫配体而定位在蛋白质的肽链上,能否用含有机硫配体的钒表面配合物模拟钒酶,用电催化方法进行电子与能量的偶联从而固氮成氨?本文对此进行了研究。

关键词: 修饰电极, 电催化, 氨

Abstract: Dinitrogen can be reduced to ammonia under the condition of controlled potential electrolysis in the presence of the chemically modified electrode containing vanadium surface complex in 0. 02 moI/L KCl/HOAc(pH4. 0) aqueous solution. The maximum current efficiency in the electrochemical reduction is 15% for the reduction of dinitrogen under the controlled potential electrolysis conditions (at -0.8 V vs SCE).

Key words: Modified electrode, Electrocatalysis, Ammonia

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