Hydrogen storage kinetics: The graphene nanoplatelet size effect

Efrat Ruse; Matat Buzaglo; Ilan Pri-Bar; Liran Shunak; Roey Nadiv; Svetlana Pevzner; Orit Siton-Mendelson; Vladimir M. Skripnyuk; Eugen Rabkin; Oren Regev

doi:10.1016/j.carbon.2018.01.012

Hydrogen storage kinetics: The graphene nanoplatelet size effect

Efrat Ruse, Matat Buzaglo, Ilan Pri-Bar, Liran Shunak, Roey Nadiv, Svetlana Pevzner, Orit Siton-Mendelson, Vladimir M. Skripnyuk, Eugen Rabkin, Oren Regev

Ben-Gurion University of the Negev

Research output: Contribution to journal › Article › peer-review

Abstract

The kinetics of hydrogen storage in magnesium can be accelerated by nanocarbon additives. In this study, we show that loading magnesium by graphene nanoplatelets (GNP) enhances the kinetics by more than an order of magnitude. The GNP presence reduces the Mg agglomeration, induced by de/hydriding, and accelerates the kinetics by connecting between Mg particles. The GNP were prepared by top-down graphite ball-milling in the presence of various organic protective agents. We found that both the molecular structure of the protective agent and the milling energy dictated the GNP properties, namely, size, thickness, defect density and specific surface area. We demonstrated how manipulation of the GNP size has a major effect on the hydrogen storage kinetics in magnesium-GNP composites.

Original language	American English
Pages (from-to)	369-376
Number of pages	8
Journal	Carbon
Volume	130
DOIs	https://doi.org/10.1016/j.carbon.2018.01.012
State	Published - 1 Apr 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science

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10.1016/j.carbon.2018.01.012

Cite this

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title = "Hydrogen storage kinetics: The graphene nanoplatelet size effect",

abstract = "The kinetics of hydrogen storage in magnesium can be accelerated by nanocarbon additives. In this study, we show that loading magnesium by graphene nanoplatelets (GNP) enhances the kinetics by more than an order of magnitude. The GNP presence reduces the Mg agglomeration, induced by de/hydriding, and accelerates the kinetics by connecting between Mg particles. The GNP were prepared by top-down graphite ball-milling in the presence of various organic protective agents. We found that both the molecular structure of the protective agent and the milling energy dictated the GNP properties, namely, size, thickness, defect density and specific surface area. We demonstrated how manipulation of the GNP size has a major effect on the hydrogen storage kinetics in magnesium-GNP composites.",

author = "Efrat Ruse and Matat Buzaglo and Ilan Pri-Bar and Liran Shunak and Roey Nadiv and Svetlana Pevzner and Orit Siton-Mendelson and Skripnyuk, \{Vladimir M.\} and Eugen Rabkin and Oren Regev",

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doi = "10.1016/j.carbon.2018.01.012",

language = "American English",

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TY - JOUR

T1 - Hydrogen storage kinetics

T2 - The graphene nanoplatelet size effect

AU - Ruse, Efrat

AU - Buzaglo, Matat

AU - Pri-Bar, Ilan

AU - Shunak, Liran

AU - Nadiv, Roey

AU - Pevzner, Svetlana

AU - Siton-Mendelson, Orit

AU - Skripnyuk, Vladimir M.

AU - Rabkin, Eugen

AU - Regev, Oren

PY - 2018/4/1

Y1 - 2018/4/1

N2 - The kinetics of hydrogen storage in magnesium can be accelerated by nanocarbon additives. In this study, we show that loading magnesium by graphene nanoplatelets (GNP) enhances the kinetics by more than an order of magnitude. The GNP presence reduces the Mg agglomeration, induced by de/hydriding, and accelerates the kinetics by connecting between Mg particles. The GNP were prepared by top-down graphite ball-milling in the presence of various organic protective agents. We found that both the molecular structure of the protective agent and the milling energy dictated the GNP properties, namely, size, thickness, defect density and specific surface area. We demonstrated how manipulation of the GNP size has a major effect on the hydrogen storage kinetics in magnesium-GNP composites.

AB - The kinetics of hydrogen storage in magnesium can be accelerated by nanocarbon additives. In this study, we show that loading magnesium by graphene nanoplatelets (GNP) enhances the kinetics by more than an order of magnitude. The GNP presence reduces the Mg agglomeration, induced by de/hydriding, and accelerates the kinetics by connecting between Mg particles. The GNP were prepared by top-down graphite ball-milling in the presence of various organic protective agents. We found that both the molecular structure of the protective agent and the milling energy dictated the GNP properties, namely, size, thickness, defect density and specific surface area. We demonstrated how manipulation of the GNP size has a major effect on the hydrogen storage kinetics in magnesium-GNP composites.

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U2 - 10.1016/j.carbon.2018.01.012

DO - 10.1016/j.carbon.2018.01.012

M3 - Article

SN - 0008-6223

VL - 130

SP - 369

EP - 376

JO - Carbon

JF - Carbon

ER -

Hydrogen storage kinetics: The graphene nanoplatelet size effect

Abstract

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