摘要
在纳米二氧化钛膜上修饰铂微粒制得钛基纳米TiO2 Pt(Ti/nano-TiO2 Pt)复合催化电极.用循环伏安法和计时电位法研究了甲醇在Ti/nano-TiO2 Pt电极上电催化氧化.结果表明Ti/nano-TiO2-Pt电极对甲醇氧化具有高催化活性和稳定性.这是由于铂在纳米二氧化钛膜上有较好的分散性.铂微粒与纳米二氧化钛的协同作用.使电极不易中毒.
The nm-TiO_2/Ti film electrode modified by Pt micropaticles show the excellent electrocatalytic activity and stability for the oxidation of methanol .Methanol oxidation on the prepared elecrode was studied using cyclic voltammetry and chronopotentiometry. The results showed that, the high electrocatalytic activities for methanol oxidation is due to the high dispersion of Pt particles on nm-TiO_2/Ti film electrode. The good stabilities can be attributed to the synergistic effect between Pt and TiO_2,avoiding the electrodes being poisoned.
出处
《安徽师范大学学报（自然科学版）》
CAS
2003年第4期364-366,共3页
Journal of Anhui Normal University(Natural Science)
基金
安徽省自然科学基金资助项目(00045317)
安徽省高校自然科学基金资助项目(2000j1093).
