A solvent-free process enabling ZnO/porous carbon with enhanced microwave absorption; Journal of Materials Science & Technology; Vol. 149

A solvent-free process enabling ZnO/porous carbon with enhanced microwave absorption; Journal of Materials Science & Technology; Vol. 149

Λεπτομέρειες βιβλιογραφικής εγγραφής
Parent link:Journal of Materials Science & Technology
Vol. 149.— 2023.— [P. 255-264]
Συγγραφή απο Οργανισμό/Αρχή: Национальный исследовательский Томский политехнический университет Исследовательская школа химических и биомедицинских технологий
Άλλοι συγγραφείς: Chen Qi, Liu Xing, Wang Tingting, Su Xiaogang, Liu Meng, Chaemchuen Somboon, Verpoort F. V. K. Frensis Valter Kornelius
Περίληψη:Title screen
Exploring a simple, rapid, solvent-free synthetic method for mass production of cheap, broadband microwave absorbers remains the main challenge. Here, a mild solvent-free procedure is reported to synthesize zinc oxide nanoparticles (ZnO NPs) embedded in porous carbon derived from mixing sucrose and zinc nitrate hexahydrate. The characteristic morphology and the ZnO NPs distribution in these composites were tuned using the different raw materials proportions. The mesoporous structure of porous carbon benefits the compositional advantages between carbon foam and ZnO NPs. The optimal synthesized ZnO/C-2 carbon material demonstrates the strongest absorption of –41.7 dB with a frequency of 14.5 GHz at a thin thickness of 2 mm, and its widest effective absorption is close to 6 GHz (12.2–17.8 GHz). This work produces a feasible route for the sensible design of other effective microwave absorbers for large-scale production.
Режим доступа: по договору с организацией-держателем ресурса
Γλώσσα:Αγγλικά
Έκδοση: 2023
Θέματα:
электронный ресурс
труды учёных ТПУ
solvent-free method
porous carbon
dielectric materials
interfacial polarization
microwave broadband
absorption
пористые углеродные материалы
диэлектрические материалы
Διαθέσιμο Online:https://doi.org/10.1016/j.jmst.2022.12.034
Μορφή: Ηλεκτρονική πηγή Κεφάλαιο βιβλίου
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=669222

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