The reversible hydrogenation-dehydrogenation of membrane and epitaxial graphenes

Nechaev, Yu S. and Filippova, V. P. and Yürüm, Alp and Yürüm, Yuda and Veziroğlu, Nejat (2015) The reversible hydrogenation-dehydrogenation of membrane and epitaxial graphenes. Journal of Chemical Engineering and Chemistry Research, 2 (1). pp. 421-456. ISSN 2333-9195 (Print) 2333-9209 (Online)

Full text not available from this repository. (Request a copy)

Abstract

Results of thermodynamic analysis of some theoretical and experimental (TDS, STM, STS, HREELS/LEED, PES, ARPS, Raman spectroscopy and others) data on the so called reversible hydrogenation and dehydrogenation of membrane and epitaxial graphenes are presented. In the framework of the formal kinetics approximation of the first order rate reaction, some thermodynamic quantities for the reaction of hydrogen sorption (the reaction rate constant, the reaction activation energy, the per-exponential factor of the reaction rate constant) have been determined and compared with the theoretical ones. Some models and characteristics of hydrogen chemisorption on graphite (on the basal and edge planes) have been used for interpretation of results of the data treatment and comparison, with the aim of revealing the atomic mechanisms of hydrogenation and dehydrogenation of epitaxial graphenes and their difference from the mechanisms for membrane graphenes. The cases of both a non-diffusion rate limiting kinetics and a diffusion rate limiting kinetics are considered.
Item Type: Article
Uncontrolled Keywords: Epitaxial and membrane graphenes, hydrogenation-dehydrogenation, thermodynamic characteristics, atomic mechanisms
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences > Basic Sciences > Chemistry
Faculty of Engineering and Natural Sciences
Depositing User: Yuda Yürüm
Date Deposited: 05 Jan 2016 11:29
Last Modified: 23 Aug 2019 15:55
URI: https://research.sabanciuniv.edu/id/eprint/29103

Actions (login required)

View Item
View Item