Formation of porous and dense Pt/C catalyst films using electrohydrodynamic atomisation deposition

Author

Dazhi Wang ; Hongbin Duan ; Junsheng Liang ; Chong Liu

Author_Institution

Key Lab. for Micro/Nano Technol. & Syst. of Liaoning Province, Dalian Univ. of Technol., Dalian, China

Volume

7

Issue

3

fYear

2012

fDate

3/1/2012 12:00:00 AM

Firstpage

235

Lastpage

239

Abstract

In this Letter, electrohydrodynamic atomisation (EHDA) was used to spray deposit Pt/C catalyst films using a Pt/C nanosuspension. In stable cone-jet atomisation mode, the influence of flow rate on the characteristics of relics and films was analysed. At a lower flow rate smaller size and lower number density of relics were predominant, which led to the formation of porous films; conversely, higher flow rate generated dense films. The size of the relics in experimental results and theoretically predicted size were compared and analysed. The dispersive X-ray analysis confirms that the EHDA deposited films are Pt/C.

Keywords

X-ray chemical analysis; carbon; catalysts; electrohydrodynamics; nanofabrication; nanoporous materials; platinum; porous materials; spraying; suspensions; thin films; EHDA deposited films; Pt-C; catalyst films; dispersive X-ray analysis; electrohydrodynamic atomisation deposition; flow rate; nanosuspension; porous films; stable cone-jet atomisation mode;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2012.0018

Filename

6179251