Interaction of Hydrogen with Reduced Graphene Oxide Probed by Muon-Spin Relaxation Technique

Retno Asih*, Dita Puspita Sari, Malik Anjelh Baqiya, Isao Watanabe, Darminto

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Muon-spin relaxation (μSR) spectroscopy has let an understanding of the hydrogen interactions with graphene, providing insights for hydrogen storage technologies based on graphenebased compounds. We report an μSR study on the reduced graphene oxide (rGO, a product of ®Graphenea) at 300 K. Spontaneous muon-spin precession is not observed under the high statistic zero-field measurement. Instead, the spectra show a typical muon diffusion with a small fraction of muon experiencing dipolar interactions with neighboring protons. Measurements under longitudinal field conditions yield the obtained hyperfine field (Bhyp) a way much lower than the required field to recover free muonium, demonstrating a radical formation. Moreover, a noticable ratio of captured muoniums (~35%) in the sample illustrates strong interactions between hydrogen and rGO.

Original languageEnglish
Title of host publicationMaterials Science Forum
PublisherTrans Tech Publications Ltd
Pages93-98
Number of pages6
DOIs
Publication statusPublished - 2023

Publication series

NameMaterials Science Forum
Volume1094
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Keywords

  • carbon
  • hydrogen interactions
  • muon-spin relaxation
  • reduced graphene oxide

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