Methanol oxidation boosted under various illumination conditions on Pt-TiO2 hybrid electrodes

Author

Lin, Chun-Ting ; Hung, Hung Ji ; Su, Yu-Zheng ; Yang, Jr-Jung ; Chu, Nien-Nan ; Shiao, Ming-Hua

Author_Institution

Instrum. Technol. Res. Center, Nat. Appl. Res. Labs., Hsinchu, Taiwan

fYear

2011

fDate

20-23 Feb. 2011

Firstpage

389

Lastpage

392

Abstract

In this paper, methanol oxidation boosted by various illumination conditions on Pt-TiO₂ hybrid electrodes was studied. Platinum was grown on TiO₂ nanoparticles (NPs) through photodecomposition of chloroplatinic acid to achieve a compact junction between Pt and TiO₂. A 9% increase on oxidation current of methanol was observed under UV (254 nm) illumination, as well as illuminated by red light laser diode (650 nm). Furthermore, a 13% increase on current was observed under UV and laser co-illumination. Preliminary result demonstrates that the plasmonic enhancement mechanism on Pt-TiO₂ hybrid can facilitate the oxidation kinetics of methanol.

Keywords

direct methanol fuel cells; electrochemical electrodes; lighting; nanoparticles; oxidation; platinum; titanium compounds; DMFC; Pt-TiO₂; UV illumination; chloroplatinic acid decomposition; direct methanol fuel cell; hybrid electrodes; illumination conditions; laser coillumination; methanol oxidation; nanoparticles; oxidation kinetics; photodecomposition; plasmonic enhancement mechanism; platinum; red light laser diode; Electrodes; Lighting; Methanol; Nanoparticles; Oxidation; Plasmons; Pt-TiO2; methanol oxidation; photocatalysis; photodeposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems (NEMS), 2011 IEEE International Conference on

Conference_Location

Kaohsiung

Print_ISBN

978-1-61284-775-7

Type

conf

DOI

10.1109/NEMS.2011.6017374

Filename

6017374