Effect of Pt nanoparticle decoration on the H2 storage performance of plasma-derived nanoporous graphene

Nikolaos Kostoglou; Chi Wei Liao; Cheng-Yu Wang; Junko N. Kondo; Christos Tampaxis; Theodore Steriotis; Konstantinos Giannakopoulos; Athanassios G. Kontos; Steve Hinder; Mark Baker; Etienne Bousser; Allan Matthews; Claus Rebholz; Christian Mitterer

doi:10.1016/j.carbon.2020.08.061

Effect of Pt nanoparticle decoration on the H₂ storage performance of plasma-derived nanoporous graphene

Nikolaos Kostoglou^*, Chi Wei Liao, Cheng-Yu Wang, Junko N. Kondo, Christos Tampaxis, Theodore Steriotis, Konstantinos Giannakopoulos, Athanassios G. Kontos, Steve Hinder, Mark Baker, Etienne Bousser, Allan Matthews, Claus Rebholz, Christian Mitterer

^*Corresponding author for this work

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

36 Scopus citations

Abstract

A nanoporous and large surface area (∼800 m²/g) graphene-based material was produced by plasma treatment of natural flake graphite and was subsequently surface decorated with platinum (Pt) nano-sized particles via thermal reduction of a Pt precursor (chloroplatinic acid). The carbon-metal nanocomposite showed a ∼2 wt% loading of well-dispersed Pt nanoparticles (<2 nm) across its porous graphene surface, while neither a significant surface chemistry alteration nor a pore structure degradation was observed due to the Pt decoration procedure. The presence of Pt seems to slightly promote the hydrogen sorption behavior at room temperature with respect to the pure graphene, thus implying the rise of “weak” chemisorption phenomena, including a potential hydrogen “spillover” effect. The findings of this experimental study provide insights for the development of novel graphene-based nanocomposites for hydrogen storage applications at ambient conditions.

Original language	English
Pages (from-to)	294-305
Number of pages	12
Journal	Carbon
Volume	171
DOIs	https://doi.org/10.1016/j.carbon.2020.08.061
State	Published - Jan 2021

Keywords

Hydrogen storage
Metal decoration
Nanocomposites
Nanoporous graphene
Plasma treatment
Pt nanoparticles

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10.1016/j.carbon.2020.08.061

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Kostoglou, N., Liao, C. W., Wang, C.-Y., Kondo, J. N., Tampaxis, C., Steriotis, T., Giannakopoulos, K., Kontos, A. G., Hinder, S., Baker, M., Bousser, E., Matthews, A., Rebholz, C., & Mitterer, C. (2021). Effect of Pt nanoparticle decoration on the H₂ storage performance of plasma-derived nanoporous graphene. Carbon, 171, 294-305. https://doi.org/10.1016/j.carbon.2020.08.061

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title = "Effect of Pt nanoparticle decoration on the H2 storage performance of plasma-derived nanoporous graphene",

abstract = "A nanoporous and large surface area (∼800 m2/g) graphene-based material was produced by plasma treatment of natural flake graphite and was subsequently surface decorated with platinum (Pt) nano-sized particles via thermal reduction of a Pt precursor (chloroplatinic acid). The carbon-metal nanocomposite showed a ∼2 wt% loading of well-dispersed Pt nanoparticles (<2 nm) across its porous graphene surface, while neither a significant surface chemistry alteration nor a pore structure degradation was observed due to the Pt decoration procedure. The presence of Pt seems to slightly promote the hydrogen sorption behavior at room temperature with respect to the pure graphene, thus implying the rise of “weak” chemisorption phenomena, including a potential hydrogen “spillover” effect. The findings of this experimental study provide insights for the development of novel graphene-based nanocomposites for hydrogen storage applications at ambient conditions.",

keywords = "Hydrogen storage, Metal decoration, Nanocomposites, Nanoporous graphene, Plasma treatment, Pt nanoparticles",

author = "Nikolaos Kostoglou and Liao, {Chi Wei} and Cheng-Yu Wang and Kondo, {Junko N.} and Christos Tampaxis and Theodore Steriotis and Konstantinos Giannakopoulos and Kontos, {Athanassios G.} and Steve Hinder and Mark Baker and Etienne Bousser and Allan Matthews and Claus Rebholz and Christian Mitterer",

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AU - Kostoglou, Nikolaos

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AU - Wang, Cheng-Yu

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AU - Tampaxis, Christos

AU - Steriotis, Theodore

AU - Giannakopoulos, Konstantinos

AU - Kontos, Athanassios G.

AU - Hinder, Steve

AU - Baker, Mark

AU - Bousser, Etienne

AU - Matthews, Allan

AU - Rebholz, Claus

AU - Mitterer, Christian

PY - 2021/1

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AB - A nanoporous and large surface area (∼800 m2/g) graphene-based material was produced by plasma treatment of natural flake graphite and was subsequently surface decorated with platinum (Pt) nano-sized particles via thermal reduction of a Pt precursor (chloroplatinic acid). The carbon-metal nanocomposite showed a ∼2 wt% loading of well-dispersed Pt nanoparticles (<2 nm) across its porous graphene surface, while neither a significant surface chemistry alteration nor a pore structure degradation was observed due to the Pt decoration procedure. The presence of Pt seems to slightly promote the hydrogen sorption behavior at room temperature with respect to the pure graphene, thus implying the rise of “weak” chemisorption phenomena, including a potential hydrogen “spillover” effect. The findings of this experimental study provide insights for the development of novel graphene-based nanocomposites for hydrogen storage applications at ambient conditions.

KW - Hydrogen storage

KW - Metal decoration

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JO - Carbon

JF - Carbon

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Effect of Pt nanoparticle decoration on the H₂ storage performance of plasma-derived nanoporous graphene

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Keywords

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