Microemulsion-mediated hydrothermal synthesis of flower-like MoS2 nanomaterials with enhanced catalytic activities for anthracene hydrogenation

doi:10.1007/s11705-017-1677-4

	Microemulsion-mediated hydrothermal synthesis of flower-like MoS2 nanomaterials with enhanced catalytic activities for anthracene hydrogenation
	Li, Min 2,3; Ma, Huaijun 3; Jiang, Yuxia 2,3; Wang, Donge 3; Pan, Zhendong 3; Li, Jiahe 2,3; Zheng, Anda 2,3; Lv, Guang 2,3; Tian, Zhijian 1,3
刊名	FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
	2018-03-01
卷号	12 期号:1 页码:32-42
关键词	Microemulsion Intercalated Mos2 Catalytic Hydrogenation Active Sites
ISSN号	2095-0179
DOI	10.1007/s11705-017-1677-4
文献子类	Article
英文摘要	Flower-like intercalated MoS2 nanomaterials have been successfully synthesized via a microemulsion-mediated hydrothermal (MMH) method, and characterized by X-ray diffraction, Raman spectroscopy, element analysis, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis, and Fourier transform infrared spectroscopy in detail. Their catalytic performance for anthracene hydrogenation was evaluated using a slurry-bed batch reactor with an initial hydrogen pressure of 80 bar at 350 degrees C for 4 h. The intercalated MoS2 nanoflowers synthesized from Na2MoO4 (MoS2-S) and H2MoO4 (MoS2-A) as molybdenum precursors have diameters of about 150 and 50 nm, respectively. MoS2 nanosheets on MoS2-S and MoS2-A possess stacking layer numbers of 5-10 and 2-5, and slab lengths of about 15 and 10 nm, respectively. The interlayer distances of MoS2-S and MoS2-A are both enlarged from 0.62 nm to about 0.95 nm due to the intercalation of NH4+ and surfactant molecules. The MoS2 nanoflowers have high catalytic activities for anthracene hydrogenation. The selectivity for octahydroanthracene, a deeply hydrogenated product, over MoS2-A is 89.8%, which is 31.0 times higher than that over commercial bulk MoS2. Fully hydrogenated product (perhydroanthracene) was also detected over MoS2 nanoflowers with a selectivity of 3.7%. The enhanced hydrogenation activities of MoS2 nanoflowers can be ascribed to the high exposure of catalytic active sites, resulting from the smaller particle size, fewer stacking layer, shorter slab length and enlarged interlayer distance of MoS2 nanoflowers compared with commercial bulk MoS2. In addition, a possible growth mechanism of MoS2 nanoflowers synthesized via the MMH method was proposed.
WOS关键词	MOLYBDENUM SULFIDE CATALYSTS ; ELECTRON-MICROSCOPY ; ACTIVE-SITES ; HEAVY OILS ; DISULFIDE ; NANOCOMPOSITES ; NANOPARTICLES ; NANOCRYSTALS ; SPECTROSCOPY ; NANOSPHERES
WOS研究方向	Engineering
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000425156500005
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168768]
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	Tian, Zhijian
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, Min,Ma, Huaijun,Jiang, Yuxia,et al. Microemulsion-mediated hydrothermal synthesis of flower-like MoS2 nanomaterials with enhanced catalytic activities for anthracene hydrogenation[J]. FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING,2018,12(1):32-42.
APA	Li, Min.,Ma, Huaijun.,Jiang, Yuxia.,Wang, Donge.,Pan, Zhendong.,...&Tian, Zhijian.(2018).Microemulsion-mediated hydrothermal synthesis of flower-like MoS2 nanomaterials with enhanced catalytic activities for anthracene hydrogenation.FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING,12(1),32-42.
MLA	Li, Min,et al."Microemulsion-mediated hydrothermal synthesis of flower-like MoS2 nanomaterials with enhanced catalytic activities for anthracene hydrogenation".FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING 12.1(2018):32-42.