Role of ReOx Species in Ni-Re/Al2O3 Catalyst for Amination of Monoethanolamine

doi:10.1021/acs.jpcc.8b06748

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	Role of ReOx Species in Ni-Re/Al2O3 Catalyst for Amination of Monoethanolamine
	Ma, L ; Sun, KJ ; Luo, M ; Yan, L ; Jiang, Z ; Lu, AH ; Ding, YJ
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2018
卷号	122 期号:40 页码:23011-23025
关键词	AUGMENTED-WAVE METHOD SUPERCRITICAL AMMONIA REDUCTIVE AMINATION BORROWING HYDROGEN PRIMARY AMINES N-ALKYLATION RE/GAMMA-AL2O3 CATALYST ALIPHATIC-ALCOHOLS NI/AL2O3 CATALYSTS RAMAN-SPECTROSCOPY
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.8b06748
文献子类	期刊论文
英文摘要	The role of ReOx species in Ni-Re/Al2O3 catalyst for amination of monoethanolamine (MEA) was investigated using a combination of experimental (Raman spectroscopy, in situ X-ray photoelectron spectroscopy, transmission electron microscopy, X-ray diffraction, scanning transmission electron microscopy-energy-dispersive X-ray spectroscopy line scan, and extended X-ray absorption fine structure) and theoretical (density functional theory (DFT)) methods. Characterization and simulation results indicate that rhenium oxide specie prefers to atomically disperse on the surface of NiO in calcined Ni-Re/Al2O3 catalyst. After reduction, the surface of metallic Ni is decorated by ReOx with multiple valence states; meanwhile, a small amount of Ni-Re alloy was detected by extended X-ray absorption fine structure (EXAFS). DFT results indicate that different-valent ReOx species in Ni-Re/Al2O3 catalyst have different functions during reaction. The high-valent ReOx (x >= 3) distributed on the Ni particle surface play an important role in decreasing the surface energy of Ni particle, thus stabilizing Ni particles against sintering and increasing the lifetime of Ni-Re/Al2O3 catalyst during amination reaction. The synergistic effect between Ni and low-valent ReOx (x < 3) sites facilitates the abstraction of hydrogen in MEA and improves the activity of Ni-Re/Al2O3 catalyst for MEA amination.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31097]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China 2.Chinese Acad Sci, Dalian Natl Lab Clean Energy, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China 3.Chinese Acad Sci, State Key Lab Catalysis, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China 4.Dalian Univ Technol, State Key Lab Fine Chem, Sch Chem Engn, 2 Linggong Rd, Dalian 116024, Peoples R China 5.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 6.Yanshan Univ, Key Lab Appl Chem, Coll Environm & Chem Engn, Qinhuangdao 066004, Peoples R China
推荐引用方式 GB/T 7714	Ma, L,Sun, KJ,Luo, M,et al. Role of ReOx Species in Ni-Re/Al2O3 Catalyst for Amination of Monoethanolamine[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(40):23011-23025.
APA	Ma, L.,Sun, KJ.,Luo, M.,Yan, L.,Jiang, Z.,...&Ding, YJ.(2018).Role of ReOx Species in Ni-Re/Al2O3 Catalyst for Amination of Monoethanolamine.JOURNAL OF PHYSICAL CHEMISTRY C,122(40),23011-23025.
MLA	Ma, L,et al."Role of ReOx Species in Ni-Re/Al2O3 Catalyst for Amination of Monoethanolamine".JOURNAL OF PHYSICAL CHEMISTRY C 122.40(2018):23011-23025.