Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel

Li, Xiang; Zhu, Luting; Kasuga, Takaaki; Nogi, Masaya; Koga, Hirotaka

doi:https://doi.org/10.1016/j.cej.2023.144010

Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel

Li, Xiang; Zhu, Luting; Kasuga, Takaaki et al.

Chemical Engineering Journal, 2023, 469, 144010

アクセス数:674件（2025-08-14 13:28 集計）

固定URL: https://hdl.handle.net/11094/92499

閲覧可能ファイル

ファイル	フォーマット	利用条件	サイズ	閲覧回数	利用開始日	説明	information
ChemEngJ_469_144010	pdf	なし	6.98 MB	139	2023.09.11

Creative Commons : 表示

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

タイトル	Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel
著者	ORCID 0000-0002-8044-7050 0000-0002-8044-7050 researchmap permalink xiangli xiangli 著者名 Li, Xiang
	著者名 Zhu, Luting
	著者名 Kasuga, Takaaki
	NRID 1000080379031 1000080379031 researchmap permalink read0151141 read0151141 Scopus Author ID 9846851200 9846851200 著者名 Nogi, Masaya
	NRID 1000030634539 1000030634539 ORCID 0000-0001-6295-1731 0000-0001-6295-1731 researchmap permalink hkoga hkoga Scopus Author ID 7201439917 7201439917 著者名 Koga, Hirotaka
キーワード等	Absorption frequency tuning
	Absorption/transmission switching
	Chitin nanofiber
	Elastic carbon aerogel
	Microwave absorption
内容	Li X., Zhu L., Kasuga T., et al. Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel. Chemical Engineering Journal 469, 144010 (2023); https://doi.org/10.1016/j.cej.2023.144010.
抄録	The increasing use of microwaves in wireless communications has caused severe electromagnetic pollution. As the frequency range for wireless communication is expanding, it is highly desirable to develop a microwave absorber that can smartly and reversibly tune its absorption and transmission properties on demand to transmit required frequencies and absorb unwanted frequencies. Herein, an absorption-frequency-tunable and absorption/transmission-switchable microwave absorber is developed based on the controlled compression of a chitin-derived elastic carbon aerogel. The maximum absorption frequency is tuned from 10.4 to 11.0, 11.5, and 12.1 GHz by varying the compression strain from 0 to 20, 40, and 60%, respectively, while the maximum absorption intensity is maintained at approximately −40 dB. This frequency-tunable absorption is achieved by reducing the thickness of the carbon aerogel while retaining its moderate dielectric loss tangent. Further compression from 60 to 80% switches the carbon aerogel from being a microwave absorber to transmitter while causing impedance mismatch and changing its dielectric loss tangent from moderate to low levels. The frequency tunability and microwave absorption/transmission switching capability are reversible and repeatable for at least 60,000 cycles of compression and recovery. This study provides insights into the smart and reversible control of microwave absorbing properties and paves the way for multifunctional and robust absorbers.
出版者	Elsevier B.V.
収録物名	Chemical Engineering Journal
巻(号)	469
ページ	144010
刊行年月	2023-08-01
言語	英語
ハンドルURL	https://hdl.handle.net/11094/92499
PISSN	13858947
NCID	AA11095026
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.cej.2023.144010
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution 4.0 International License.
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	Chemical Engineering Journal. 2023, 469, p. 144010
DC.title	Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel
DC.creator	Li, Xiang
	Zhu, Luting
	Kasuga, Takaaki
	Nogi, Masaya
	Koga, Hirotaka
DC.publisher	Elsevier B.V.
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2023-08-01
DC.identifier	https://doi.org/10.1016/j.cej.2023.144010
DC.subject	Absorption frequency tuning
	Absorption/transmission switching
	Chitin nanofiber
	Elastic carbon aerogel
	Microwave absorption
DC.description	Li X., Zhu L., Kasuga T., et al. Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel. Chemical Engineering Journal 469, 144010 (2023); https://doi.org/10.1016/j.cej.2023.144010.
DCTERMS.abstract	The increasing use of microwaves in wireless communications has caused severe electromagnetic pollution. As the frequency range for wireless communication is expanding, it is highly desirable to develop a microwave absorber that can smartly and reversibly tune its absorption and transmission properties on demand to transmit required frequencies and absorb unwanted frequencies. Herein, an absorption-frequency-tunable and absorption/transmission-switchable microwave absorber is developed based on the controlled compression of a chitin-derived elastic carbon aerogel. The maximum absorption frequency is tuned from 10.4 to 11.0, 11.5, and 12.1 GHz by varying the compression strain from 0 to 20, 40, and 60%, respectively, while the maximum absorption intensity is maintained at approximately −40 dB. This frequency-tunable absorption is achieved by reducing the thickness of the carbon aerogel while retaining its moderate dielectric loss tangent. Further compression from 60 to 80% switches the carbon aerogel from being a microwave absorber to transmitter while causing impedance mismatch and changing its dielectric loss tangent from moderate to low levels. The frequency tunability and microwave absorption/transmission switching capability are reversible and repeatable for at least 60,000 cycles of compression and recovery. This study provides insights into the smart and reversible control of microwave absorbing properties and paves the way for multifunctional and robust absorbers.
DC.rights	This article is licensed under a Creative Commons Attribution 4.0 International License.
DC.format	92499
citation_title	Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel
citation_author	Li, Xiang
	Zhu, Luting
	Kasuga, Takaaki
	Nogi, Masaya
	Koga, Hirotaka
citation_publisher	Elsevier B.V.
citation_language	英語
citation_date	2023-08-01
citation_journal_title	Chemical Engineering Journal
citation_volume	469
citation_firstpage	144010
citation_doi	https://doi.org/10.1016/j.cej.2023.144010
citation_public_url	https://hdl.handle.net/11094/92499

Frequency-tunable and absorption/transmission-switchable microwave absorber based on a chitin-nanofiber-derived elastic carbon aerogel

閲覧可能ファイル

論文情報

論文詳細を表示