Dendritic, Transferable, Strictly Monolayer MoS2 Flakes Synthesized on   SrTiO3 Single Crystals for Efficient Electrocatalytic Applications

doi:10.1021/nn503412w

CORC > 北京大学 > 化学与分子工程学院

	Dendritic, Transferable, Strictly Monolayer MoS2 Flakes Synthesized on SrTiO3 Single Crystals for Efficient Electrocatalytic Applications
	Zhang, Yu ; Ji, Qingqing ; Han, Gao-Feng ; Ju, Jing ; Shi, Jianping ; Ma, Donglin ; Sun, Jingyu ; Zhang, Yanshuo ; Li, Minjie ; Lang, Xing-You ; Zhang, Yanfeng ; Liu, Zhongfan
刊名	acs nano
	2014
关键词	molybdenum disulfide monolayer SrTiO3 hydrogen evolution reaction dendritic crystal growth CHEMICAL-VAPOR-DEPOSITION HYDROGEN EVOLUTION REACTION ACTIVE EDGE SITES METAL DICHALCOGENIDE NANOSHEETS MOLYBDENUM-DISULFIDE LARGE-AREA ATOMIC LAYERS ULTRATHIN NANOSHEETS VALLEY POLARIZATION GRAIN-BOUNDARY
DOI	10.1021/nn503412w
英文摘要	Controllable synthesis of macroscopically uniform, high-quality monolayer MoS2 is crucial for harnessing its great potential in optoelectronics, electrocatalysis, and energy storage. To date, triangular MoS2 single crystals or their polycrystalline aggregates have been synthesized on insulating substrates of SiO2/Si, mica, sapphire, etc., via portable chemical vapor deposition methods. Herein, we report a controllable synthesis of dendritic, strictly monolayer MoS2 flakes possessing tunable degrees of fractal shape on a specific insulator, SrTiO3. Interestingly, the dendritic monolayer MoS2, characterized by abundant edges, can be transferred intact onto Au foil electrodes and serve as ideal electrocatalysts for hydrogen evolution reaction, reflected by a rather low Tafel slope of similar to 73 mV/decade among CVD-grown two-dimensional MoS2 flakes. In addition, we reveal that centimeter-scale uniform, strictly rnonolayer MoS2 films consisting of relatively compact domains can also be obtained, offering insights into promising applications such as flexible energy conversion/harvesting and optoelectronics.; Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; SCI(E); EI; PubMed; 5; ARTICLE; yanfengzhang@pku.edu.cn; 8; 8617-8624; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/149689]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Zhang, Yu,Ji, Qingqing,Han, Gao-Feng,et al. Dendritic, Transferable, Strictly Monolayer MoS2 Flakes Synthesized on SrTiO3 Single Crystals for Efficient Electrocatalytic Applications[J]. acs nano,2014.
APA	Zhang, Yu.,Ji, Qingqing.,Han, Gao-Feng.,Ju, Jing.,Shi, Jianping.,...&Liu, Zhongfan.(2014).Dendritic, Transferable, Strictly Monolayer MoS2 Flakes Synthesized on SrTiO3 Single Crystals for Efficient Electrocatalytic Applications.acs nano.
MLA	Zhang, Yu,et al."Dendritic, Transferable, Strictly Monolayer MoS2 Flakes Synthesized on SrTiO3 Single Crystals for Efficient Electrocatalytic Applications".acs nano (2014).