Stacking order reduction in multilayer graphene by inserting nanospacers

Xu, Zizhao; Inoue, Taiki; Nishina, Yuta; Kobayashi, Yoshihiro

doi:https://doi.org/10.1063/5.0103826

Stacking order reduction in multilayer graphene by inserting nanospacers

Xu, Zizhao; Inoue, Taiki; Nishina, Yuta et al.

Journal of Applied Physics, 2022, 132(17), 174305

アクセス数:603件（2025-08-28 16:30 集計）

固定URL: https://hdl.handle.net/11094/90054

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タイトル	Stacking order reduction in multilayer graphene by inserting nanospacers
著者	著者名 Xu, Zizhao
	NRID 1000000748949 1000000748949 ORCID 0000-0003-1739-917X 0000-0003-1739-917X researchmap permalink inoue_t inoue_t Scopus Author ID 37261439700 37261439700 著者名 Inoue, Taiki
	NRID 1000050585940 1000050585940 著者名 Nishina, Yuta
	NRID 1000030393739 1000030393739 ORCID 0000-0002-0486-7846 0000-0002-0486-7846 researchmap permalink koba_ap_eng_ou koba_ap_eng_ou Scopus Author ID 7408650102 7408650102 著者名 Kobayashi, Yoshihiro
内容	Zizhao Xu, Taiki Inoue, Yuta Nishina, and Yoshihiro Kobayashi, "Stacking order reduction in multilayer graphene by inserting nanospacers", Journal of Applied Physics 132, 174305 (2022) https://doi.org/10.1063/5.0103826
抄録	Toward macroscopic applications of graphene, it is desirable to preserve the superior properties of single-layer graphene in bulk scale. However, the AB-stacking structure is thermodynamically favored for multilayer graphene and causes strong interlayer interactions, resulting in property degradation. A promising approach to prevent the strong interlayer interaction is the staking order reduction of graphene, where the graphene layers are rotated in-plane to form a randomly stacking structure. In this study, we propose a strategy to effectively decrease the stacking order of multilayer graphene by incorporating nanospacers, cellulose nanofibers, or nano-diamonds (NDs) in the formation process of porous graphene sponges. We conducted an ultrahigh temperature treatment at 1500 °C with ethanol vapor for the reduction and structural repair of graphene oxide sponges with different concentrations of the nanospacers. Raman spectroscopy indicated an obvious increase in the random-stacking fraction of graphene by adding the nanospacers. The x-ray diffraction (XRD) analysis revealed that a small amount of the nanospacers induced a remarkable decrease in ordered graphene crystalline size in the stacking direction. It was also confirmed that a layer-number increase during the thermal treatment was suppressed by the nanospacers. The increase in the random-stacking fraction is attributed to the efficient formation of randomly rotated graphene through the ethanol-mediated structural restoration of relatively thin layers induced by the nanospacers. This stacking-order-reduced graphene with bulk scale is expected to be used in macroscopic applications, such as electrode materials and wearable devices.
出版者	American Institute of Physics Inc.
収録物名	Journal of Applied Physics
巻(号)	132(17)
ページ	174305
刊行年月	2022-11-07
言語	英語
ハンドルURL	https://hdl.handle.net/11094/90054
PISSN	00218979
eISSN	10897550
NCID	AA00693547
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1063/5.0103826
アクセス権	open access
権利情報	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Zizhao Xu, Taiki Inoue, Yuta Nishina, and Yoshihiro Kobayashi, "Stacking order reduction in multilayer graphene by inserting nanospacers", Journal of Applied Physics 132, 174305 (2022) and may be found at https://doi.org/10.1063/5.0103826.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Journal of Applied Physics. 2022, 132(17), p. 174305
DC.title	Stacking order reduction in multilayer graphene by inserting nanospacers
DC.creator	Xu, Zizhao
	Inoue, Taiki
	Nishina, Yuta
	Kobayashi, Yoshihiro
DC.publisher	American Institute of Physics Inc.
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2022-11-07
DC.identifier	https://doi.org/10.1063/5.0103826
DC.description	Zizhao Xu, Taiki Inoue, Yuta Nishina, and Yoshihiro Kobayashi, "Stacking order reduction in multilayer graphene by inserting nanospacers", Journal of Applied Physics 132, 174305 (2022) https://doi.org/10.1063/5.0103826
DCTERMS.abstract	Toward macroscopic applications of graphene, it is desirable to preserve the superior properties of single-layer graphene in bulk scale. However, the AB-stacking structure is thermodynamically favored for multilayer graphene and causes strong interlayer interactions, resulting in property degradation. A promising approach to prevent the strong interlayer interaction is the staking order reduction of graphene, where the graphene layers are rotated in-plane to form a randomly stacking structure. In this study, we propose a strategy to effectively decrease the stacking order of multilayer graphene by incorporating nanospacers, cellulose nanofibers, or nano-diamonds (NDs) in the formation process of porous graphene sponges. We conducted an ultrahigh temperature treatment at 1500 °C with ethanol vapor for the reduction and structural repair of graphene oxide sponges with different concentrations of the nanospacers. Raman spectroscopy indicated an obvious increase in the random-stacking fraction of graphene by adding the nanospacers. The x-ray diffraction (XRD) analysis revealed that a small amount of the nanospacers induced a remarkable decrease in ordered graphene crystalline size in the stacking direction. It was also confirmed that a layer-number increase during the thermal treatment was suppressed by the nanospacers. The increase in the random-stacking fraction is attributed to the efficient formation of randomly rotated graphene through the ethanol-mediated structural restoration of relatively thin layers induced by the nanospacers. This stacking-order-reduced graphene with bulk scale is expected to be used in macroscopic applications, such as electrode materials and wearable devices.
DC.rights	This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Zizhao Xu, Taiki Inoue, Yuta Nishina, and Yoshihiro Kobayashi, "Stacking order reduction in multilayer graphene by inserting nanospacers", Journal of Applied Physics 132, 174305 (2022) and may be found at https://doi.org/10.1063/5.0103826.
DC.format	90054
citation_title	Stacking order reduction in multilayer graphene by inserting nanospacers
citation_author	Xu, Zizhao
	Inoue, Taiki
	Nishina, Yuta
	Kobayashi, Yoshihiro
citation_publisher	American Institute of Physics Inc.
citation_language	英語
citation_date	2022-11-07
citation_journal_title	Journal of Applied Physics
citation_volume	132
citation_issue	17
citation_firstpage	174305
citation_doi	https://doi.org/10.1063/5.0103826
citation_public_url	https://hdl.handle.net/11094/90054

Stacking order reduction in multilayer graphene by inserting nanospacers

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