Electrocatalytic Oxidation for Formic Acid and Formaldehyde on Platinum Implanted Glassy Carbon Electrode

Abstract

Abstract: Platinum implanted glassy carbon electrode(Pt/GC) was fabricated and implantation dose is 5×10¹⁷ion/cm². The surface elements composition and the concentration depth profiles of various elements of platinum implanted glassy carbon electrode(Pt/GC) were measured by AES. The chemical state of Pt on Pt/GCelectrode was detected by XPS. The electro-oxidation of HCOOH in 0.5 mol/L HClO₄ solution and electro oxidation of HCHOin five kinds of weak basic solutions have been investigated on Pt/GCand smooth Pt electrodes, respectively. The results show that the catalytic activity, according to the real surface area, of Pt/GCelectrode is better than that of pure Pt electrode in electro oxidation of formic acid and formaldehyde. It is possibly related to Pt nanometric clusters formed in bombing. On the same electrode, the currents of oxidation of HCHOin difference weak basic solutions are different. It shows that anion has an obvious effect on the electro oxidation of HCHO.

Key words: Ion implantation, Electro oxidation, Formic acid, Formaldehyde

CLC Number:

O646

TrendMD:

ZHANG Cun-Zhong, YANG Jing, WU Zhong-Da . Electrocatalytic Oxidation for Formic Acid and Formaldehyde on Platinum Implanted Glassy Carbon Electrode[J]. Chem. J. Chinese Universities, 2001, 22(6): 966.

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Electrocatalytic Oxidation for Formic Acid and Formaldehyde on Platinum Implanted Glassy Carbon Electrode

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