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Electrocatalytic oxidation of methanol by methanol by metal-carbon nanotube catalysts |
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| รหัสดีโอไอ | |
| Title | Electrocatalytic oxidation of methanol by methanol by metal-carbon nanotube catalysts |
| Creator | Rattana Cheerapradit |
| Contributor | Orawon Chailapakul, Parichatr Vanalabhpatana |
| Publisher | Chulalongkorn University |
| Publication Year | 2551 |
| Keyword | Electrocatalysis, Electrolytic oxidation, Methanol -- Oxidation, Catalysts, การเร่งปฏิกิริยาเชิงไฟฟ้า, การออกซิเดชันด้วยไฟฟ้า, เมทานอล -- ออกซิเดชัน, ตัวเร่งปฏิกิริยา |
| Abstract | In this research, the mono-, di-, and tri-metal nanoparticles supported on carbon nanotube (CNT) have been developed as electrocatalysts for the oxidation of methanol using polyol process synthesis. Pt, accompanied by other metals including Ru, Cr, Mo, and Ni, were used as catalysts. Structural information of the metal catalysts on CNT was confirmed by X-ray diffraction (XRD) technique and energy dispersive X-ray fluorescence spectroscopy (XRF-EDX). Transmission electron microscopic (TEM) observation showed that the metal nanoparticles were evenly distributed on CNT. Electrocatalytic properties of the Pt-based metal nanoparticles on CNT towards methanol oxidation were investigated by means of cyclic voltammetry at the scan rate of 50 mV•s–1. Among all of the synthesized catalysts, 2:1:0.5 PtRuMo supported on CNT showed the best electrocatalytic performance with the anodic current of 77.5 A•(g catalyst) –1 for 1.0 M methanol containing 0.5 M sulfuric acid. In addition, the optimized PtRuMo on CNT had high reproducibility and long term stability. |
| URL Website | cuir.car.chula.ac.th |
