1-(1-Naphthyl)Ethylamine Adsorption on Platinum Surfaces: On the Mechanism of Chiral Modification in Catalysis

2008 ◽  
Vol 130 (44) ◽  
pp. 14597-14604 ◽  
Author(s):  
Ilkeun Lee ◽  
Zhen Ma ◽  
Shinji Kaneko ◽  
Francisco Zaera
Keyword(s):  
Platinum Surfaces ◽  
Chiral Modification

Ultrathin Platinum Crystal Surface Structures

1985 ◽  
Vol 43 ◽  
pp. 394-395
Author(s):  
R. L. Hines
Keyword(s):  
Crystal Surface ◽  
Surface Structures ◽  
Platinum Surface ◽  
Platinum Surfaces ◽  
Resolution Level ◽  
Experimental Facilities ◽  
Carbon Backing ◽  
Mesh Grid ◽  
Atom Layer

The importance of atom layer terraces or steps on platinum surfaces used for catalysis as discussed by Somorjai justifies an extensive investigation of the structure of platinum surfaces through electron microscopy at the atomic resolution level. Experimental and theoretical difficulties complicate the quantitative determination of platinum surface structures but qualitative observation of surface structures on platinum crystals is now possible with good experimental facilities.Ultrathin platinum crystals with nominal 111 orientation are prepared using the procedure reported by Hines without the application of a carbon backing layer. Platinum films with thicknesses of about ten atom layers are strong enough so that they can be mounted on grids to provide ultrathin platinum crystals for examination of surface structure. Crystals as thin as possible are desired to minimize the theoretical difficulties in analyzing image contrast to determine structure. With the current preparation procedures the crystals frequently cover complete openings on a 400 mesh grid.

The nature of active centers catalyzing oxygen electro-reduction at platinum surfaces in alkaline media

2019 ◽  
Vol 12 (1) ◽  
pp. 351-357 ◽  
Author(s):  
Yunchang Liang ◽  
David McLaughlin ◽  
Christoph Csoklich ◽  
Oliver Schneider ◽  
Aliaksandr S. Bandarenka
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Alkaline Media ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Active Centers ◽  
Reaction Conditions ◽  
Electrochemical Scanning Tunneling Microscopy ◽  
Platinum Surfaces ◽  
Alkaline Electrolytes ◽  
Noise Measurements

The recently introduced electrochemical scanning tunneling microscopy noise measurements were applied to directly identify active centers for oxygen electro-reduction at Pt-based surfaces in three alkaline electrolytes under reaction conditions.

Electrocatalysis of formic acid on palladium and platinum surfaces: from fundamental mechanisms to fuel cell applications

2014 ◽  
Vol 16 (38) ◽  
pp. 20360-20376 ◽  
Author(s):  
Kun Jiang ◽  
Han-Xuan Zhang ◽  
Shouzhong Zou ◽  
Wen-Bin Cai
Keyword(s):  
Fuel Cell ◽  
Formic Acid ◽  
Recent Progress ◽  
Formic Acid Oxidation ◽  
Acid Oxidation ◽  
Mechanistic Studies ◽  
Practical Applications ◽  
Platinum Surfaces ◽  
Formic Acid Fuel Cells ◽  
Oxidation Synthesis

A brief overview is presented on recent progress in mechanistic studies of formic acid oxidation, synthesis of novel Pd- and Pt-based nanocatalysts and their practical applications in direct formic acid fuel cells.

Nanofaceted Platinum Surfaces:  A New Model System for Nanoparticle Catalysts

2005 ◽  
Vol 109 (49) ◽  
pp. 23543-23549 ◽  
Author(s):  
Vladimir Komanicky ◽  
Andreas Menzel ◽  
Kee-Chul Chang ◽  
Hoydoo You
Keyword(s):  
Model System ◽  
New Model ◽  
Nanoparticle Catalysts ◽  
Platinum Surfaces
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