温度及电解液浓度对电沉积法制备Pt/C电极的影响  

Effect of temperature and electrolyte concentration to the Pt/C electrode prepared by electrodeposition

作　　者：程李娟[1] 高颖[1] 邬冰[1] 

机构地区：[1]哈尔滨师范大学化学系,黑龙江哈尔滨150080

出　　处：《化学工程师》2007年第2期1-3,共3页Chemical Engineer

基　　金：国家自然科学基金(20573029);黑龙江省自然科学基金(B200505);黑龙江省教育厅基金(11511110)

摘　　要：用电化学沉积法在活性炭表面沉积Pt来制备Pt/C电极。发现改变电沉积温度和电解液中氯铂酸的浓度制备的Pt/C电极,对甲醇及CO氧化的电催化活性有很大不同。沉积条件为80℃、5 mmol.L-1H2PtC l6+0.5 mol.L-1H2SO4与沉积条件为25℃、15 mmol.L-1H2PtC l6+0.5 mol.L-1H2SO4时沉积出的Pt/C电极对甲醇氧化呈现出较高的电催化活性。The platinum was deposited on the surface of activated carbon to prepared the Pt/C electrode by electrodeposition. The activity of Pt/C electrodes for the electro - oxidation Of methanol and the adsorption carbon monoxide variated obviously with the temperature and concentration of chloroplatinic acid. The Pt/C electrodes showed good electrodecatalytic oxidation activity when the electrodeposition at the temperature of 80℃, the electrolyte of 5 mmol · L^-1 chloroplatinic acid ＋ 0.5 mol · L^-1 sulfuric acid and at the temperature of 25℃, the electrolyte of 15 mmol · L^-1 chloroplatinic acid ＋ 0.5 mol · L^-1 sulfuric acid.

关 键 词：甲醇 电沉积 燃料电池 

分 类 号：O646[理学—物理化学]