Ni-In合金电极的制备及其电催化活性  

Preparation of Ni-In electrode and its electrocatalytic activity

作　　者：李俊华[1] 邝代治[1] 冯泳兰[1] 唐文清[1] 费锡明[2] 

机构地区：[1]衡阳师范学院化学与材料科学系功能金属有机材料湖南省高校重点实验室,衡阳421008 [2]华中师范大学化学学院,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2010年第2期259-263,共5页Journal of Central China Normal University：Natural Sciences

基　　金：湖南省"十一五"重点建设学科项目(2006180);衡阳市科技局计划(2009KG23;2009KG50);衡阳师范学院青年项目(09A32)

摘　　要：用电化学方法制备了Ni、In电极和A、B两种不同类型Ni-In合金电极,考察了这些电极在0.2 mol/L NaOH溶液中的伏安行为;同时讨论了葡萄糖在所制电极表面的催化氧化行为.结果表明:在碱性介质中Ni电极和Ni-In合金电极对葡萄糖的氧化都有一定的催化作用,其中A型Ni-In合金电极的催化作用最强;在镀液中Ni2+、In3+摩尔比为5∶1时得到的A型Ni-In合金电极对葡萄糖催化效率最高,同时葡萄糖浓度在1～10 mmol/L之间与其氧化峰电流成线性关系.A型Ni-In合金电极性能稳定,抗中毒能力强,可以作为葡萄糖燃料电池的高催化活性电极.The Ni,In electrodes and two kinds of Ni-In electrodes were prepared by electrochemical methods and their vohammetric behaviors were investigated in 0.2 mol/L NaOH solution. The electrocatalytic activities of glucose on electrode surface were also discussed. The results indicated that Ni and Ni-In electrodes showed catalysis effect on glucose oxidation in alkaline solution and the catalytic action of the A-type Ni-In alloy electrode was best. The A-type Ni-In alloy electrode, which prepared at condition of Ni^2＋ ,In^3＋ mole ratio 5 ： 1,had best catalytic action. There was a liner relationship between glucose oxidation peak current and its concentration in the range of 110 mmol/L. The property of the A-type Ni In alloy electrode was steady and this alloy electrode resisted poisoning better. This alloy electrode should be used as high catalytic activity electrode of glucose fuel battery.

关 键 词：Ni-In合金电极 循环伏安 电催化 葡萄糖 

分 类 号：O646.5[理学—物理化学]