fulltext.study @t Gmail

PdFe/CeO2 bimetal catalysts prepared by dual arc-plasma deposition

Paper ID Volume ID Publish Year Pages File Format Full-Text
55102 47040 2013 6 PDF Available
Title
PdFe/CeO2 bimetal catalysts prepared by dual arc-plasma deposition
Abstract

Bimetal nanoparticles of PdFe were deposited onto CeO2 by using dual arc-plasma to study their structures and catalytic properties for CO oxidation. Highly dispersed uniform nanoparticles with the average size of about 2 nm were successfully obtained. By synchronizing two pulsed arc-plasmas, single bimetal nanoparticles containing both Pd and Fe could be formed, but asynchronous pulsing yielded mixtures of each metal nanoparticle. In accordance with the structural difference, the PdFe bimetal nanoparticle on CeO2 was found to stabilize metallic states of Pd and Fe and therefore exhibited higher catalytic activities for CO oxidation. The same trend was observed after thermal ageing at 900 °C for 25 h in a stream of 10% H2O in air; PdFe/CeO2 prepared under the synchronous pulse condition showed the higher activity than Pd/CeO2 and asynchronous PdFe/CeO2 due to abundance of metallic Pd.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (147 K)Download as PowerPoint slideHighlights► PdFe bimetal nanoparticles were prepared by dual arc-plasma deposition. ► Formation of bimetal nanoparticles requires synchronizing two pulsed arc-plasmas. ► PdFe/CeO2 bimetal catalyst achieved a higher catalytic activity than Pd/CeO2 after thermal ageing.

Keywords
Arc-plasma; Pd; CeO2; Bimetal; CO oxidation
First Page Preview
PdFe/CeO2 bimetal catalysts prepared by dual arc-plasma deposition
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 201, 1 March 2013, Pages 92–97
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us