Identifying active sites of CoNC/CNT from pyrolysis of molecularly defined complexes for oxidative esterification and hydrogenation reactions

IMR OpenIR

	Identifying active sites of CoNC/CNT from pyrolysis of molecularly defined complexes for oxidative esterification and hydrogenation reactions
	Cheng, Tianyuan; Yu, Hao; Peng, Feng; Wang, Hongjuan; Zhang, Bingsen; Su, Dangsheng; yuhao@scut.edu.cn; bszhang@imr.ac.cn
	2016
发表期刊	CATALYSIS SCIENCE & TECHNOLOGY
ISSN	2044-4753
卷号	6 期号:4 页码:1007-1015
摘要	As an emerging catalyst based on earth-abundant metals, Co3O4 supported on carbon materials, derived from the pyrolysis of metal salts and nitrogen-containing ligands, shows excellent performance in hydrogenation, hydrogenated coupling, oxidative esterification and oxidation of amines. Herein, we unravel the real active sites of this catalyst through a combination of XRD, XPS, HRTEM, EELS and poisoning experiments with sulfur-containing compounds. The oxidative esterification of benzyl alcohol, hydrogenation of nitrobenzene and hydrogenated coupling of nitrobenzene with benzaldehyde were used as probe reactions. By comparing the catalytic performance before and after HCl washing, it was demonstrated that particulate Co3O4 has a marginal effect on the catalysis, and the highly dispersed CoNx on carbon nanotubes created during the pyrolysis is responsible for the activity. It was proposed that cobalt chelate complexes bonded to 2 to 3 nitrogens in the graphene lattice, probably like the pyridinic vacancy, might be responsible for the activity.
部门归属	[cheng, tianyuan ; yu, hao ; peng, feng ; wang, hongjuan] s china univ technol, sch chem & chem engn, guangzhou 510640, guangdong, peoples r china ; [zhang, bingsen ; su, dangsheng] chinese acad sci, inst met res, catalysis & mat div, shenyang natl lab mat sci, shenyang 110016, peoples r china
资助者	National Natural Science Foundation of China [21133010, 21273079]; Guangdong Provincial Natural Science Foundation [S20120011275, 2014A030312007]; Program for New Century Excellent Talents in University [NCET-12-0190]; Fundamental Research Funds for the Central Universities of China [2014ZG0005, 2015PT012]
收录类别	sci
语种	英语
WOS记录号	WOS:000371177100008
引用统计	被引频次：83[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/74899
专题	中国科学院金属研究所
通讯作者	yuhao@scut.edu.cn; bszhang@imr.ac.cn
推荐引用方式 GB/T 7714	Cheng, Tianyuan,Yu, Hao,Peng, Feng,et al. Identifying active sites of CoNC/CNT from pyrolysis of molecularly defined complexes for oxidative esterification and hydrogenation reactions[J]. CATALYSIS SCIENCE & TECHNOLOGY,2016,6(4):1007-1015.
APA	Cheng, Tianyuan.,Yu, Hao.,Peng, Feng.,Wang, Hongjuan.,Zhang, Bingsen.,...&bszhang@imr.ac.cn.(2016).Identifying active sites of CoNC/CNT from pyrolysis of molecularly defined complexes for oxidative esterification and hydrogenation reactions.CATALYSIS SCIENCE & TECHNOLOGY,6(4),1007-1015.
MLA	Cheng, Tianyuan,et al."Identifying active sites of CoNC/CNT from pyrolysis of molecularly defined complexes for oxidative esterification and hydrogenation reactions".CATALYSIS SCIENCE & TECHNOLOGY 6.4(2016):1007-1015.