Elecetrochemical deposition of precious metal on carbon nanotube for methanol oxidation

• المؤلفون الرئيسيون: Saipanya S., Sarakonsri T., Wongtap P.
• التنسيق: مقال
• اللغة: English
• منشور في: 2014
• الوصول للمادة أونلاين: http://www.scopus.com/inward/record.url?eid=2-s2.0-84861059888&partnerID=40&md5=4328e5ddccb510a39d3f2c5dcee680c4; http://cmuir.cmu.ac.th/handle/6653943832/6660

Precious metal nanoparticles were prepared on carbon nanotube (CNT) by sequential and simultaneous deposition methods for the electrocatalytic study of methanol oxidation. All electrochemical measurements were carried out in a three-electrode cell. A Platinum wire and Ag/AgCl were used as auxiliary and reference electrodes, respectively. Suspension of the CNT and Nafion were mixed and dropped on glassy carbon as a working electrode. Cyclic voltammograms in H 2SO 4 electrolyte solution are attributable to hydrogen adsorption and hydrogen desorption resulting in promising electrochemical performance of the prepared precious metal nanoparticles. Cyclic voltamograms of methanol electrooxidation studied in 2 M CH 3OH in 1 M H 2SO 4 show a distinguishing shape with a prominent oxidation wave in the anodic scan contributed to methanol oxidation while the cathodic scan is associated with the accumulation of carbonaceous species. © 2012.