Hydrogen adsorption properties based on holey graphene sheets

2018 ◽  
Author(s):  
Amanpreet Kaur ◽  
Jasmeet Kaur ◽  
Anita Hastir ◽  
Virpal ◽  
Ravi Chand Singh
Keyword(s):  
Hydrogen Adsorption ◽  
Adsorption Properties ◽  
Graphene Sheets

scholarly journals Adsorption of H2 on Penta-Octa-Penta Graphene: Grand Canonical Monte Carlo Study

2020 ◽  
Vol 6 (2) ◽  
pp. 20
Author(s):  
Maxim N. Popov ◽  
Thomas Dengg ◽  
Dominik Gehringer ◽  
David Holec
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Hydrogen Adsorption ◽  
Monte Carlo Study ◽  
Adsorption Properties ◽  
Cryogenic Temperatures ◽  
Grand Canonical Monte Carlo ◽  
New Material ◽  
Grand Canonical ◽  
Carbon Based

In this paper, we report the results of hydrogen adsorption properties of a new 2D carbon-based material, consisting of pentagons and octagons (Penta-Octa-Penta-graphene or POP-graphene), based on the Grand-Canonical Monte Carlo simulations. The new material exhibits a moderately higher gravimetric uptake at cryogenic temperatures (77 K), as compared to the regular graphene. We discuss the origin of the enhanced uptake of POP-graphene and offer a consistent explanation.

Hydrogen adsorption on graphene sheets doped with group 8B transition metal: A DFT investigation

Vacuum ◽  
2017 ◽  
Vol 139 ◽  
pp. 101-108 ◽  
Author(s):  
Chanukorn Tabtimsai ◽  
Wandee Rakrai ◽  
Banchob Wanno
Keyword(s):  
Transition Metal ◽  
Hydrogen Adsorption ◽  
Graphene Sheets

Effects of Supports on Hydrogen Adsorption on Pt Clusters

2008 ◽  
Vol 139 ◽  
pp. 41-46 ◽  
Author(s):  
K. Okazaki-Maeda ◽  
Y. Morikawa ◽  
Shingo Tanaka ◽  
Masanori Kohyama
Keyword(s):  
Catalytic Activity ◽  
First Principles ◽  
Carbon Materials ◽  
Hydrogen Adsorption ◽  
Nano Particles ◽  
High Dispersion ◽  
Graphene Sheets ◽  
First Principles Calculations ◽  
Small Clusters ◽  
Atom Absorption

Pt nano-particles are supported on carbon materials at the electrode catalysts of protonexchange menbrane fuel cells. Pt nano-particles are desirable to be strongly adsorbed on carbon materials for high dispersion, although strong Pt-C interactions may affect the catalytic activity of small clusters. Thus we have examined H-atom absorption on Pt clusters supported or unsupported on graphene sheets, using first-principles calculations. For Pt-atom/graphene systems, a H atom is more weakly adsorbed than for a free Pt atom, and the H-Pt interaction becomes weaker if the interaction between a Pt atom and graphene becomes stronger. For the Ptn-cluster/graphene systems (n=2-4), the H-Pt interactions are also substantially changed from those for free Pt clusters. In the Pt clusters on graphene, the Pt-Pt distances are substantially changed associated with the electronicstructure changes by the Pt-C interactions. These structural and electronic changes in the Pt clusters as well as the presence of graphene itself seem to cause the changes in the absorption energies and preferential sites of H-atom absorption.

Hydrogen adsorption properties of polymer-derived nanoporous SiCx fibers

2010 ◽  
Vol 35 (7) ◽  
pp. 3165-3169 ◽  
Author(s):  
Zengyong Chu ◽  
Rongan He ◽  
Xiaobin Zhang ◽  
Haifeng Cheng ◽  
Xiaodong Li ◽  
...  
Keyword(s):  
Hydrogen Adsorption ◽  
Adsorption Properties

Hydrogen Adsorption Properties of Carbon Nanotubes and Platinum Nanoparticles from a New Ammonium-Ethylimidazolium Chloroplatinate Salt

ChemSusChem ◽  
2016 ◽  
Vol 9 (10) ◽  
pp. 1153-1165 ◽  
Author(s):  
Emanuela Tamburri ◽  
Maria Cristina Cassani ◽  
Barbara Ballarin ◽  
Massimo Tomellini ◽  
Cristina Femoni ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Platinum Nanoparticles ◽  
Hydrogen Adsorption ◽  
Adsorption Properties

Effect of in-situ boron doping on hydrogen adsorption properties of carbon nanotubes

2019 ◽  
Vol 44 (33) ◽  
pp. 18193-18204 ◽  
Author(s):  
Shrilekha V. Sawant ◽  
Seemita Banerjee ◽  
Ashwin W. Patwardhan ◽  
Jyeshtharaj B. Joshi ◽  
Kinshuk Dasgupta
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Adsorption ◽  
Boron Doping ◽  
Adsorption Properties
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