Effect of the added amount of organically-modified montmorillonite on the catalytic carbonization of polypropylene into cup-stacked carbon nanotubes

doi:10.1016/j.cej.2013.03.112

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	Effect of the added amount of organically-modified montmorillonite on the catalytic carbonization of polypropylene into cup-stacked carbon nanotubes
	Gong, Jiang 1,2; Liu, Jie 1; Jiang, Zhiwei 1; Wen, Xin 1; Chen, Xuecheng 1; Mijowska, Ewa 3; Wang, Yanhui 1; Tang, Tao 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2013-06-01
卷号	225 页码:798-808
关键词	Cup-stacked Carbon Nanotubes Polypropylene Organically-modified Montmorillonite Nio Combined Catalysis
ISSN号	1385-8947
DOI	10.1016/j.cej.2013.03.112
英文摘要	For the first time, cup-stacked carbon nanotubes (CS-CNTs) with high quality were efficiently synthesized by a one-pot approach through the carbonization of polypropylene (PP) under the combined catalysis of organically-modified montmorillonite (OMMT)/NiO. The effects of the added amount of OMMT on the yield, morphology, microstructure, phase structure and thermal stability of carbon nanomaterials (including CS-CNTs and carbon nanofibers (CNFs)) were fully investigated by scanning electron microscope, transmission electron microscope (TEM), high-resolution TEM (HRTEM), X-ray diffraction, Raman spectroscopy and thermal gravimetric analysis. Furthermore, the effects of OMMT on the degradation products of PP and the coalescence and reconstruction of NiO nanoparticles before the growth of CS-CNTs and CNFs were analyzed by gas chromatography, gas chromatography-mass spectrometry and HRTEM. It was found that after adding a low amount of OMMT, a relatively large amount of light hydrocarbons and a small amount of aromatics were produced during the degradation of PP, which promoted the coalescence and reconstruction of NiO nanoparticles into rhombic shape. Subsequently, the reshaped NiO catalysts catalyzed the light hydrocarbons and aromatics into long, straight and smooth-surface CS-CNTs with narrow length and diameter distributions. This approach offers a new potential way to largely transform waste polymer materials into valuable CS-CNTs. (c) 2013 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000321313800092
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46531]
专题	中国科学院化学研究所
通讯作者	Tang, Tao
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.West Pomeranian Univ Technol, Inst Chem & Environm Engn, PL-70322 Szczecin, Poland
推荐引用方式 GB/T 7714	Gong, Jiang,Liu, Jie,Jiang, Zhiwei,et al. Effect of the added amount of organically-modified montmorillonite on the catalytic carbonization of polypropylene into cup-stacked carbon nanotubes[J]. CHEMICAL ENGINEERING JOURNAL,2013,225:798-808.
APA	Gong, Jiang.,Liu, Jie.,Jiang, Zhiwei.,Wen, Xin.,Chen, Xuecheng.,...&Tang, Tao.(2013).Effect of the added amount of organically-modified montmorillonite on the catalytic carbonization of polypropylene into cup-stacked carbon nanotubes.CHEMICAL ENGINEERING JOURNAL,225,798-808.
MLA	Gong, Jiang,et al."Effect of the added amount of organically-modified montmorillonite on the catalytic carbonization of polypropylene into cup-stacked carbon nanotubes".CHEMICAL ENGINEERING JOURNAL 225(2013):798-808.