fulltext.study @t Gmail

Electrocatalytic oxidation of dimethyl ether on ruthenium modified platinum single crystal electrodes

Paper ID Volume ID Publish Year Pages File Format Full-Text
51470 46843 2009 4 PDF Available
Title
Electrocatalytic oxidation of dimethyl ether on ruthenium modified platinum single crystal electrodes
Abstract

Ruthenium were deposited on Pt(h k l) single crystal surfaces using repeated spontaneous deposition procedure. Pt(h k l)/Ru surfaces with different Ru coverage were first applied for the electrocatalytic oxidation of dimethyl ether (DME) to clarify the structure dependence of Ru modification. Cyclic voltammograms (CVs) show that the catalytic activity after Ru modification is promoted on Pt(1 0 0) while inhibited on Pt(1 1 0) and Pt(1 1 1) surfaces. Pt(1 0 0)/Ru surface yields a higher surface activity than clean Pt(1 0 0) within a potential range from 0.60 to 0.72 V, especially after one single spontaneous deposition. Pt(1 1 0)/Ru and Pt(1 1 1)/Ru have almost no activity for DME oxidation.

Keywords
Fuel cell; Dimethyl ether (DME); Electrocatalytic oxidation; Ruthenium modification; Platinum single crystal
First Page Preview
Electrocatalytic oxidation of dimethyl ether on ruthenium modified platinum single crystal electrodes
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 6, 15 February 2009, Pages 971–974
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis