Upcycling of face masks to application‑rich multi‑ and single‑walled carbon nanotubes
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 32권 / 7호
ㆍ저자명 : Varun Shenoy Gangoli, Thomas Mahy, Tim Yick, Yubiao Niu, Richard E. Palmer, Alvin Orbaek White
ㆍ저자명 : Varun Shenoy Gangoli, Thomas Mahy, Tim Yick, Yubiao Niu, Richard E. Palmer, Alvin Orbaek White
목차
Abstract1 Introduction
2 Experimental section
2.1 Materials
2.2 CNT characterization
2.3 Preparation and testing the CNT Ethernet cable
3 Results and discussion
3.1 CNT characterization
3.2 CNT Ethernet cable
3.3 Global energy considerations
4 Conclusions
Acknowledgements
References
영어 초록
We report the use of face mask materials as a carbon precursor for the synthesis of multi- and single-walled carbon nanotubes (CNTs) in an open-loop chemical recycling process. Novel surgical mask precursors were suspended in toluene and injected into a chemical vapor deposition reactor previously optimized for CNT production using liquid injection. The CNTs were collected and characterized using resonant Raman spectroscopy, transmission electron microscopy (TEM) and scanning electron microscopy (SEM) before being turned into fibrils that were tested for electrical conductance. Once confirmed and repeated for statistical accuracy, a CNT-based Ethernet cable was manufactured and tested using iPerf3 for uplink and downlink speeds exceeding broadband standards worldwide. Radial breathing modes from Raman spectroscopy indicate single walled CNTs (SWCNTs) with diameters ranging from 0.8 to 1.55 nm and this matches well with TEM observations of SWCNTs with 1.5 nm diameter. This work pushes the horizon of feedstocks useful for CNT and SWCNT production in particular; this work demonstrates upcycling of materials fated for disposal into materials with positive net value and plenty of real-world applications.참고 자료
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