Oscillatory Dynamics during Methanol Electrooxidation Reaction on Pt(111)

2021 ◽  
Author(s):  
Kaline Nascimento da Silva ◽  
Elton Sitta
Keyword(s):  
Methanol Electrooxidation ◽  
Single Crystalline ◽  
Oscillatory Dynamics ◽  
Crystalline Surfaces

Despite several papers describing the oscillatory methanol electrooxidation reaction (OMER) catalyzed by polycrystalline Pt, these dynamic instabilities are less explored on single crystalline surfaces. Herein, we observed and mapped for...

In-situ AFM study of the crystallization and pH-dependent stability of ZnO(0001)-Zn surfaces

2007 ◽  
Vol 1035 ◽  
Author(s):  
Markus Valtiner ◽  
Guido Grundmeier
Keyword(s):  
Electrolyte Solutions ◽  
Ex Situ ◽  
Chemical Cleaning ◽  
Single Crystalline ◽  
Afm Imaging ◽  
Wide Range ◽  
Wet Chemical ◽  
Ph Dependent ◽  
Crystalline Surfaces

AbstractPolar ZnO(0001)-Zn surfaces can be prepared as very well defined and single crystalline surfaces by hydroxide stabilization simply by introducing hydroxides via a wet chemical cleaning step. Within this proceeding we present an in-situ AFM imaging of the crystallization process. The pH dependent stability of the resulting hydroxide-stabilized surfaces was further investigated by means of an ex-situ LEED approach. These investigations show, that it is possible to obtain high quality single crystalline ZnO(0001)-Zn surfaces in a simple way. Moreover, these surfaces turned out to be very stable within a wide range of pH values between 11 and 3 of NaClO4 based 1mM electrolyte solutions.

Interaction of overlayers of Al and Rb with single‐crystalline surfaces of Bi2Sr2CaCu2O8

1990 ◽  
Vol 67 (5) ◽  
pp. 2667-2670 ◽  
Author(s):  
P. A. P. Lindberg ◽  
B. O. Wells ◽  
Z.‐X. Shen ◽  
D. S. Dessau ◽  
I. Lindau ◽  
...  
Keyword(s):  
Single Crystalline ◽  
Crystalline Surfaces
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