化工学报 ›› 2011, Vol. 62 ›› Issue (1): 142-146.

• 表面与界面工程 • 上一篇    下一篇

Ni-Cu合金电极上苯甲醇的选择性电氧化

马淳安,廖艳梅,朱英红,吴玲玲   

  1. 浙江工业大学化学工程与材料学院,绿色化学合成技术国家重点实验室培育基地,浙江 杭州 310032
  • 出版日期:2011-01-05 发布日期:2011-01-05

Selective electro-oxidation of benzyl alcohol on Ni-Cu alloy electrodes

MA Chun’an,LIAO Yanmei, ZHU Yinghong, WU Lingling   

  • Online:2011-01-05 Published:2011-01-05

摘要:

通过恒电流电沉积法在不同条件下制备了一系列Ni-Cu合金电极,采用扫描电镜(SEM)表征了其表面形态,用循环伏安法(CV)研究了在碱性溶液中苯甲醇在不同工艺条件下制备的Ni-Cu合金电极上的电氧化行为。并进一步用电化学原位红外光谱(in situ FTIP)从分子水平研究了苯甲醇在Ni-Cu合金电极上的电氧化过程。结果表明:在制备过程中电沉积时间为10 min,阴极电流密度为4 A·dm-2,电沉积温度为45下制备的电极具有最好的催化活性。Ni-Cu合金电极对苯甲醇表现出良好的催化活性和一定的化学稳定性。

关键词: 电氧化;FONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体" lang=EN-US>Ni-CuFONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-ascii-font-family: Times New Roman, mso-bidi-font-family: Times New Roman, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-hansi-font-family: Times New Roman">合金电极;苯甲醇

Abstract:

The Ni-Cu alloy electrodes were prepared by constant current electrodeposition under different conditions.The morphology of Ni-Cu alloy was characterized by SEM.The selective electro-oxidation of benzyl alcohol in alkaline solution was studied with cyclic voltammograms and in-situ FTIR spectroscopy.The Ni-Cu alloy electrode showed the best electro-catalytic activity while the electrodeposition time was 10 min, cathode current density was 4 A·dm-2, and the electrodeposition temperatures was 45.Ni-Cu alloy electrodes showed excellent chemical stability and better catalytic activity than pure Ni or Cu electrode.

Key words: 电氧化;FONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-fareast-font-family: 宋体" lang=EN-US>Ni-CuFONT-SIZE: 10.5pt, mso-bidi-font-size: 11.0pt, mso-ascii-font-family: Times New Roman, mso-bidi-font-family: Times New Roman, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, mso-bidi-language: AR-SA, mso-hansi-font-family: Times New Roman">合金电极;苯甲醇