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载钯碳纳米管阵列电极对2,4,5-PCB的电催化还原脱氯特性

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Indexed by: Journal Article

Date of Publication: 2009-01-01

Journal: 科学通报

Included Journals: CSCD、ISTIC、PKU

Volume: 54

Issue: 23

Page Number: 3630-3636

ISSN: 0023-074X

Key Words: 碳纳米管阵列电极; 多氯联苯; 电催化; 脱氯

Abstract: 采用化学气相沉积.电沉积法制备出以钛板为基底的载钯碳纳米管有序阵列电极(Pd/CNTs/Ti).钯颗粒多数粒径约10 nm左右,平均粒径小于20
   nm,均匀分散在碳纳米管(CNTs)管壁表面.应用载钯碳纳米管有序阵列电极用于甲醇-水溶液中2,4,5-三氯联苯(PCB29)的电催化还原脱氯研
   究.结果表明,由于CNTs的独特性质,Pd/CNTs/Ti电极表现出比Pd/Ti和Pd/石墨电极更高的脱氯效率,6
   h内PCB29去除率达90%.在此过程中PCB
   29可以完全脱氯,联苯被确认为是最终脱氯产物.在电催化还原反应中载钯量、阴极电压和支持电解质是影响脱氯效果的关键因素.

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