Effect of Re promoter on the structure and catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine

doi:10.1039/c7ra12891f

	Effect of Re promoter on the structure and catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine
	Ma, Lei 1,2,3; Yan, Li 3; Lu, An-Hui 2; Ding, Yunjie 3,4
刊名	RSC ADVANCES
	2018
卷号	8 期号:15 页码:8152-8163
ISSN号	2046-2069
DOI	10.1039/c7ra12891f
文献子类	Article
英文摘要	In this paper, Ni/Al2O3 catalysts (15 wt% Ni) with different Re loadings were prepared to investigate the effect of Re on the structure and catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine. Reaction results reveal that the conversion and ethylenediamine selectivity increase significantly with increasing Re loading up to 2 wt%. Ni-Re/Al2O3 catalysts show excellent stability during the reductive amination reaction. The characterization of XRD, DR UV-Vis spectroscopy, H2-TPR, and acidity-basicity measurements indicates that addition of Re improves the Ni dispersion, proportion of octahedral Ni2+ species, reducibility, and acid strength for Ni-Re/Al2O3 catalysts. The Ni15 and Ni15-Re2 catalysts were chosen for in-depth study. The results from SEM-BSE, TEM, and CO-TPD indicate that smaller Ni-0 particle size and higher Ni-0 surface area are obtained in the reduced Ni-Re/Al2O3 catalysts. Results from in situ XPS and STEM-EDX line scan suggest that Re species show a mixture of various valances and have a tendency to aggregate on the surface of Ni-0 particles. During reaction, the Ni-0 particles on the Al2O3 support are stabilized and the sintering process is effectively suppressed by the incorporation of Re. It could be concluded that sufficient Ni-0 sites, the collaborative effect of Ni-Re, and brilliant stability contribute to the excellent catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine.
WOS关键词	SUPPORTED NICKEL-CATALYSTS ; SUPERCRITICAL AMMONIA ; NI/AL2O3 CATALYSTS ; PRIMARY AMINES ; N-ALKYLATION ; SECONDARY ALCOHOLS ; ALIPHATIC-AMINES ; GAMMA-ALUMINA ; CYCLIC AMINES ; COPPER
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000427502300031
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168862]
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
通讯作者	Yan, Li; Ding, Yunjie
作者单位	1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Ma, Lei,Yan, Li,Lu, An-Hui,et al. Effect of Re promoter on the structure and catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine[J]. RSC ADVANCES,2018,8(15):8152-8163.
APA	Ma, Lei,Yan, Li,Lu, An-Hui,&Ding, Yunjie.(2018).Effect of Re promoter on the structure and catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine.RSC ADVANCES,8(15),8152-8163.
MLA	Ma, Lei,et al."Effect of Re promoter on the structure and catalytic performance of Ni-Re/Al2O3 catalysts for the reductive amination of monoethanolamine".RSC ADVANCES 8.15(2018):8152-8163.