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

Research output: Contribution to journalArticleResearchpeer-review

Authors

  • Chi-Wei Liao
  • C.-Y. Wang
  • Junko N. Kondo
  • Christos Tampaxis
  • Theodore Steriotis
  • Konstantinos Giannakopoulos
  • Athanassios G. Kontos
  • Steven J. Hinder
  • Mark Baker
  • Eztienne Bousser
  • Allan Matthews
  • Claus Rebholz

External Organisational units

  • Feng Chia University
  • Institute of Innovative Research, Tokyo Institute of Technology
  • National Chiao Tung University
  • National Center for Scientific Research Demokritos, Agia Paraskevi Attikis
  • University of Surrey
  • University of Surrey
  • School of Mechanical
  • Research Unit for Nanostructured Materials Systems, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology

Abstract

A nanoporous and large surface area (∼800 m 2/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.

Details

Original languageEnglish
Pages (from-to)294-305
Number of pages12
JournalCarbon
Volume171
Issue number171
DOIs
Publication statusPublished - Jan 2021