DEMS Study on Methanol Oxidation at Poly- and Monocrystalline Platinum Electrodes:  The Effect of Anion, Temperature, Surface Structure, Ru Adatom, and Potential

2007 ◽  
Vol 111 (19) ◽  
pp. 7038-7048 ◽  
Author(s):  
Hongsen Wang ◽  
Helmut Baltruschat
Keyword(s):  
Surface Structure ◽  
Methanol Oxidation ◽  
Platinum Electrodes ◽  
Temperature Surface

Room-temperature surface structure of 4-aminobenzoic acid on Cu(110) surfaces

2001 ◽  
Vol 32 (1) ◽  
pp. 43-48 ◽  
Author(s):  
Q. Chen ◽  
D. J. Frankel ◽  
N. V. Richardson
Keyword(s):  
Surface Structure ◽  
Room Temperature ◽  
Aminobenzoic Acid ◽  
Temperature Surface

Surface Structure Effects in Platinum/Ruthenium Methanol Oxidation Electrocatalysis

Langmuir ◽  
1998 ◽  
Vol 14 (8) ◽  
pp. 1967-1970 ◽  
Author(s):  
Wojciech Chrzanowski ◽  
Andrzej Wieckowski
Keyword(s):  
Surface Structure ◽  
Methanol Oxidation

Catalytic Properties of Ni3Fe Foil for Hydrogen Production from Methanol

2012 ◽  
Vol 706-709 ◽  
pp. 1052-1057 ◽  
Author(s):  
Ya Xu ◽  
Masahiko Demura ◽  
Toshiyuki Hirano ◽  
Yasuyuki Kaneno ◽  
Takayuki Takasugi
Keyword(s):  
Catalytic Activity ◽  
Fine Structure ◽  
Hydrogen Production ◽  
Surface Structure ◽  
Carbon Nanofibers ◽  
Surface Analysis ◽  
Catalytic Properties ◽  
Methanol Decomposition ◽  
Metallurgical Process ◽  
Temperature Surface

The objective of this study is to investigate the catalytic properties of intermetallic Ni3Fe foil. We fabricated Ni3Fe foil of 30 µm in thickness by a metallurgical process, and examined the catalytic activity of the Ni3Fe foil for methanol decomposition from 513 to 973 K. The Ni3Fe foil showed activity for methanol decomposition above 623 K. The activity increased with the increase of reaction temperature. Surface analysis revealed that a surface structure of fine Ni-Fe particles dispersed on carbon nanofibers was formed on the foil during the reaction. The activity is attributed to the formation of this fine structure.

scholarly journals The kinetics and mechanism of methanol oxidation on Pt and PtRu catalysts in alkaline and acid media

2007 ◽  
Vol 72 (7) ◽  
pp. 709-712 ◽  
Author(s):  
Jelena Lovic
Keyword(s):  
Single Crystals ◽  
Methanol Oxidation ◽  
Ruthenium Catalysts ◽  
Alkaline Media ◽  
Pt Catalyst ◽  
Platinum Electrodes ◽  
Acid Media ◽  
Rate Determining Step ◽  
Langmuir Hinshelwood Mechanism ◽  
Ptru Catalysts

The kinetic of methanol electrochemical oxidation for a series of platinum and platinum-ruthenium catalysts was investigated. A correlation between the beginning of OHad adsorption and methanol oxidation was demonstrated on Pt single crystals and Pt nanocatalyst. The activity of the nano-structured Pt catalyst was compared with single crystal platinum electrodes assuming the Kinoshita model of nanoparticles. The ruthenium-containing catalysts shifted the onset of methanol oxidation to more negative potentials. The effect was more pronounced in acid than in alkaline media. Based on the established diagnostic criteria, the reaction between COad and OHad species according to the Langmuir-Hinshelwood mechanism was proposed as the rate determining step in alkaline and acid media on Pt and PtRu catalysts. .

Methanol oxidation at platinum electrodes in alkaline solution: comparison between supported catalysts and model systems

2004 ◽  
Vol 572 (1) ◽  
pp. 119-128 ◽  
Author(s):  
Amalija V. Tripković ◽  
K.Dj. Popović ◽  
J.D. Lović ◽  
V.M. Jovanović ◽  
A. Kowal
Keyword(s):  
Methanol Oxidation ◽  
Alkaline Solution ◽  
Supported Catalysts ◽  
Model Systems ◽  
Platinum Electrodes

scholarly journals Spatially Resolved Electrochemistry in Ionic Liquids: Surface Structure Effects on Triiodide Reduction at Platinum Electrodes

Langmuir ◽  
2014 ◽  
Vol 30 (7) ◽  
pp. 1915-1919 ◽  
Author(s):  
Barak D. B. Aaronson ◽  
Stanley C. S. Lai ◽  
Patrick R. Unwin
Keyword(s):  
Ionic Liquids ◽  
Surface Structure ◽  
Platinum Electrodes ◽  
Spatially Resolved
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