BROWSE

Related Scientist

Researcher

Mark Hermann Rummeli
나노구조물리 연구단
more info

Nanosized Carbon Black Combined with Ni2O3 as "Universal" Catalysts for Synergistically Catalyzing Carbonization of Polyolefin Wastes to Synthesize Carbon Nanotubes and Application for Supercapacitors

Cited 20 time in webofscience Cited 0 time in scopus
393 Viewed 38 Downloaded
Title
Nanosized Carbon Black Combined with Ni2O3 as "Universal" Catalysts for Synergistically Catalyzing Carbonization of Polyolefin Wastes to Synthesize Carbon Nanotubes and Application for Supercapacitors
Author(s)
Wen, X; Chen, XC; Tian, NN; Gong, J; Liu, J; Rummeli, MH; Chu, PK; Mijiwska, E; Tang, T
Publication Date
2014-04
Journal
ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.48, no.7, pp.4048 - 4055
Publisher
AMER CHEMICAL SOC
Abstract
The catalytic carbonization of polyolefin materials to synthesize carbon nanotubes (CNTs) is a promising strategy for the processing and recycling of plastic wastes, but this approach is generally limited due to the selectivity of catalysts and the difficulties in separating the polyolefin mixture. In this study, the influence of nanosized carbon black (CB) and Ni2O 3 as a novel combined catalyst system on catalyzing carbonization of polypropylene (PP), polyethylene (PE), polystyrene (PS) and their blends was investigated. We showed that this combination was efficient to promote the carbonization of these polymers to produce CNTs with high yields and of good quality. Catalytic pyrolysis and model carbonization experiments indicated that the carbonization mechanism was attributed to the synergistic effect of the combined catalysts rendered by CB and Ni2O3: CB catalyzed the degradation of PP, PE, and PS to selectively produce more aromatic compounds, which were subsequently dehydrogenated and reassembled into CNTs via the catalytic action of CB together with Ni particles. Moreover, the performance of the synthesized CNTs as the electrode of supercapacitor was investigated the supercapacitor displayed a high specific capacitance as compared to supercapacitors using commercial CNTs and CB. This difference was attributed to the relatively larger specific surface areas of our synthetic CNTs and their more oxygen-containing groups. © 2014 American Chemical Society.
URI
https://pr.ibs.re.kr/handle/8788114/1079
ISSN
0013-936X
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
345. Chen_Env_Sci_Tech.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse