Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni(2)O(3) into carbon nanotubes and its mechanism

	Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni(2)O(3) into carbon nanotubes and its mechanism
	Gong J ; Liu J ; Wan D ; Chen XC ; Wen X ; Mijowska E ; Jiang ZW ; Wang YH ; Tang T
刊名	applied catalysis a-general
	2012
卷号	449 页码:112-120
关键词	AROMATIC-HYDROCARBONS DECOMPOSITION GROWTH ACID COMBUSTION PYROLYSIS HYDROGEN METHANE NICKEL POLYETHYLENE
ISSN号	0926-860x
通讯作者	liu jie
中文摘要	a one-pot approach was established to prepare carbon nanotubes (cnts) through the carbonization of polypropylene (pp) by the combined catalysts of activated carbon (ac) with ni(2)o(3). the combination of ac with ni(2)o(3) showed a synergistic catalysis on the catalytic conversion of pp to form cnts. the effects of the content of ac and carbonization temperature on the yield of cnts were studied. the morphology, phase structure and thermal stability of the obtained cnts were analyzed by means of sem, tem, xrd, tga and raman. in this synergistic catalysis, the surface functional groups (especially carboxylic groups) of ac were proved to be the key factor. ac not only promoted the cracking of pp fragment radicals into light hydrocarbons and the dehydrogenation and aromatization of the resultant light hydrocarbons into aromatic compounds, but also promoted the formation of the intermediate aromatic compounds or polycyclic aromatic hydrocarbons (pahs) from the reaction of light hydrocarbon products and aromatic compounds. additionally, ac assisted in situ ni catalyst (originated from the reduction of ni(2)o(3)) catalyzing the dehydrogenation and aromatization of intermediate aromatic compounds or pahs products to form cnts. at last, a layer-by-layer assembled mechanism based on benzene rings for the growth of cnts using pp as carbon source and combined ac/ni(2)o(3) as catalysts was proposed. this mechanism will help to understand the growth mechanism of cnts using virgin or waste plastics as carbon sources. more importantly, this approach offers a new potential way for large-scale production of cnts from waste plastics using cheap ac as a cocatalyst.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2013-01-30
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/47785]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Gong J,Liu J,Wan D,et al. Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni(2)O(3) into carbon nanotubes and its mechanism[J]. applied catalysis a-general,2012,449:112-120.
APA	Gong J.,Liu J.,Wan D.,Chen XC.,Wen X.,...&Tang T.(2012).Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni(2)O(3) into carbon nanotubes and its mechanism.applied catalysis a-general,449,112-120.
MLA	Gong J,et al."Catalytic carbonization of polypropylene by the combined catalysis of activated carbon with Ni(2)O(3) into carbon nanotubes and its mechanism".applied catalysis a-general 449(2012):112-120.