High efficient nanocatalysts synthesis by a semi-reflux chemical reduction system

Author

Wu, Yi-Shiuan ; Gong, Shin-Mei ; Wang, Chun-Hsien ; Peng, Hsien-Chih ; Tsai, Ming-Chi ; Yeh, Tsung-Kuang ; Tseng, Fan-Gan

Author_Institution

Dept. of Eng. & Syst. Sci., Nat. Tsing Hua Univ., Hsinchu, Taiwan

fYear

2010

fDate

20-23 Jan. 2010

Firstpage

704

Lastpage

707

Abstract

Pt is one of the most employed catalysts for methanol catalysis in direct methanol fuel cell (DMFC). In this study, carbon nanotube (CNT) surface was used for catalyst reduction. By using ethylene glycol as a reducing agent, Pt catalyst precursor (H₂PtCl₆ · 6H₂O) was reduced on the CNTs by a novel method called semi-reflux chemical reduction system (SRCRS). The SRCRS can effectively reduce the catalyst preparation time and the catalyst distribution density can also be much increased by adjusting the pH value. Cyclic voltammetry (CV) and ICP-MS results were used for electrochemical surface area (ECA) calculation. The ECA result was comparable to that of commercial available Pt.

Keywords

carbon nanotubes; catalysis; direct methanol fuel cells; nanofabrication; reduction (chemical); voltammetry (chemical analysis); C; carbon nanotube surface; catalyst distribution density; catalyst precursor; catalyst preparation; catalyst reduction; cyclic voltammetry; direct methanol fuel cell; electrochemical surface area calculation; ethylene glycol; high efficient nanocatalysts synthesis; methanol catalysis; pH value; semireflux chemical reduction system; CNT; DMFC; SRCRS; pH value;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems (NEMS), 2010 5th IEEE International Conference on

Conference_Location

Xiamen

Print_ISBN

978-1-4244-6543-9

Type

conf

DOI

10.1109/NEMS.2010.5592251

Filename

5592251