scholarly journals Anomalous evolution of the ion-induced surface relief of highly oriented pyrolytic graphite

2021 ◽  
Vol 2144 (1) ◽  
pp. 012022
Author(s):  
N N Andrianova ◽  
A M Borisov ◽  
E S Mashkova ◽  
M A Ovchinnikov ◽  
V S Sevostyanova
Keyword(s):  
Plastic Deformation ◽  
Surface Relief ◽  
Pyrolytic Graphite ◽  
Irradiation Temperature ◽  
Deformation Mechanisms ◽  
Highly Oriented Pyrolytic Graphite ◽  
Argon Ions ◽  
Anomalous Growth ◽  
Modification Of The Surface

Abstract The modification of the surface of highly oriented pyrolytic graphite (HOPG) under 10, 20 and 30 keV Ar+ ions irradiation with fluence 1018 cm−2 at the irradiation temperature of 250°C has been studied experimentally. An anomalous growth of the ion-induced surface relief of HOPG have been found. This effect, like the well-known effect of anomalous deep embedded argon ions in HOPG, is analyzed within the framework of plastic deformation mechanisms in graphite.

Effects of Wet Chemical Oxidation on Surface Functionalization and Morphology of Highly Oriented Pyrolytic Graphite

2020 ◽  
Author(s):  
Mikhail Trought ◽  
Isobel Wentworth ◽  
Timothy Leftwich ◽  
Kathryn Perrine
Keyword(s):  
Surface Functionalization ◽  
Functional Group ◽  
Pyrolytic Graphite ◽  
Surface Oxidation ◽  
Chemical Oxidation ◽  
Synthesis Methods ◽  
Acid Solutions ◽  
Highly Oriented Pyrolytic Graphite ◽  
Wet Chemical ◽  
Surface Morphologies

The knowledge of chemical functionalization for area selective deposition (ASD) is crucial for designing the next generation heterogeneous catalysis. Surface functionalization by oxidation was studied on the surface of highly oriented pyrolytic graphite (HOPG). The HOPG surface was exposed to with various concentrations of two different acids (HCl and HNO3). We show that exposure of the HOPG surface to the acid solutions produce primarily the same -OH functional group and also significant differences the surface topography. Mechanisms are suggested to explain these strikingly different surface morphologies after surface oxidation. This knowledge can be used to for ASD synthesis methods for future graphene-based technologies.

Functionalized 4,4′-Bipyridines: Synthesis and 2D Organization on Highly Oriented Pyrolytic Graphite

2021 ◽  
Vol 86 (4) ◽  
pp. 3356-3366
Author(s):  
Jimmy Richard ◽  
Jean Joseph ◽  
Can Wang ◽  
Artur Ciesielski ◽  
Jean Weiss ◽  
...  
Keyword(s):  
Pyrolytic Graphite ◽  
Highly Oriented Pyrolytic Graphite

A comparative study of plastic deformation mechanisms in room-temperature and cryogenically deformed magnesium alloy AZ31

2021 ◽  
Vol 807 ◽  
pp. 140821
Author(s):  
Kai Zhang ◽  
Zhutao Shao ◽  
Christopher S. Daniel ◽  
Mark Turski ◽  
Catalin Pruncu ◽  
...  
Keyword(s):  
Plastic Deformation ◽  
Magnesium Alloy ◽  
Comparative Study ◽  
Room Temperature ◽  
Deformation Mechanisms ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31

Quantized electronic structure and growth of Pb films on highly oriented pyrolytic graphite

2008 ◽  
Vol 78 (23) ◽  
Author(s):  
Y. Liu ◽  
J. J. Paggel ◽  
M. H. Upton ◽  
T. Miller ◽  
T.-C. Chiang
Keyword(s):  
Electronic Structure ◽  
Pyrolytic Graphite ◽  
Highly Oriented Pyrolytic Graphite
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