Silicon carbide-derived carbon nanocomposite as a substitute for mercury in the catalytic hydrochlorination of acetylene

	Silicon carbide-derived carbon nanocomposite as a substitute for mercury in the catalytic hydrochlorination of acetylene
	Li, Xingyun 1; Pan, Xiulian 1; Yu, Liang 1; Ren, Pengju 1; Wu, Xing 2; Sun, Litao 2; Jiao, Feng 1; Bao, Xinhe 1
刊名	nature communications
	2014-04-01
卷号	5 期号:1 页码:4688
通讯作者	潘秀莲 ; 包信和
英文摘要	acetylene hydrochlorination is an important coal-based technology for the industrial production of vinyl chloride, however it is plagued by the toxicity of the mercury chloride catalyst. therefore extensive efforts have been made to explore alternative catalysts with various metals. here we report that a nanocomposite of nitrogen- doped carbon derived from silicon carbide activates acetylene directly for hydrochlorination in the absence of additional metal species. the catalyst delivers stable performance during a 150 hour test with acetylene conversion reaching 80% and vinyl chloride selectivity over 98% at 200 degrees c. experimental studies and theoretical simulations reveal that the carbon atoms bonded with pyrrolic nitrogen atoms are the active sites. this proof- of- concept study demonstrates that such a nanocomposite is a potential substitute for mercury while further work is still necessary to bring this to the industrial stage. furthermore, the finding also provides guidance for design of carbon- based catalysts for activation of other alkynes.
学科主题	物理化学
WOS标题词	science & technology
类目[WOS]	multidisciplinary sciences
研究领域[WOS]	science & technology - other topics
关键词[WOS]	chloride monomer production ; supported gold catalyst ; nanotubes ; mechanism ; nanoparticles ; deactivation ; regeneration ; oxidation ; nitride ; boron
收录类别	SCI
语种	英语
WOS记录号	WOS:000335222000004
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/144235]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Southeast Univ, Minist Educ, Key Lab MEMS, Dept Elect Sci & Engn,SEU FEI Nanopico Ctr, Nanjing 210096, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Li, Xingyun,Pan, Xiulian,Yu, Liang,et al. Silicon carbide-derived carbon nanocomposite as a substitute for mercury in the catalytic hydrochlorination of acetylene[J]. nature communications,2014,5(1):4688.
APA	Li, Xingyun.,Pan, Xiulian.,Yu, Liang.,Ren, Pengju.,Wu, Xing.,...&Bao, Xinhe.(2014).Silicon carbide-derived carbon nanocomposite as a substitute for mercury in the catalytic hydrochlorination of acetylene.nature communications,5(1),4688.
MLA	Li, Xingyun,et al."Silicon carbide-derived carbon nanocomposite as a substitute for mercury in the catalytic hydrochlorination of acetylene".nature communications 5.1(2014):4688.