Subtle alteration in muon diffusion and hydrogen interaction of thermally modified reduced-graphene-oxide

Retno Asih*, Dita P. Sari, Malik A. Baqiya, Isao Watanabe, Darminto Darminto

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Reduced graphene oxide (rGO) is a potential candidate for hydrogen storage technologies as it shows a high reactivity to hydrogen. Here, we study how muon behaves in rGO (Graphenea) that is thermally modified at 200°C, particularly compared to that as prepared one. The investigation is performed by means of muon-spin relaxation (μ+SR) technique which is sensitive to hydrogen reaction in low electron-density materials like rGO. At 300 K, a considerable fraction of captured muoniums is observed in the thermally modified rGO (~38%), which is slightly higher than that of as prepared rGO (~35%). These appreciable fractions indicate a vigorous interaction between rGO and hydrogen, suggesting the potential of rGO for hydrogen storage. Moreover, the fraction of muon diffusion in rGO subtly decreases, while the fraction of muon experiences local dipolar interaction with nearby proton somewhat increases by thermal modification at 200°C. A subtle alteration in the muon diffusion fraction is expected due to an increase in the number of defects presented in thermally modified rGO.

Original languageEnglish
Title of host publication2nd International Symposium on Physics and Applications 2021
EditorsRetno Asih, Nasori, Saifuddin, Muhammad Haekal
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735444676
DOIs
Publication statusPublished - 9 May 2023
Event2nd International Symposium on Physics and Applications 2021, ISPA 2021 - Surabaya, Indonesia
Duration: 13 Nov 202114 Nov 2021

Publication series

NameAIP Conference Proceedings
Volume2604
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2nd International Symposium on Physics and Applications 2021, ISPA 2021
Country/TerritoryIndonesia
CitySurabaya
Period13/11/2114/11/21

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