水热法合成纳米花状二硫化钼及其微观结构表征

傅重源; 邢淞; 沈涛; 邰博; 董前民; 舒海波; 梁培

doi:10.7498/aps.64.016102

摘要

本文以钼酸钠、硫代乙酰胺为前驱体, 硅钨酸为添加剂, 成功用水热法合成高纯度纳米花状二硫化钼. 产物特性用X射线衍射(XRD)、能量色散谱(EDS)、扫描电子显微镜(SEM)进行表征. XRD和EDS图显示实验产物为二硫化钼, 且其结晶度和层状堆垛良好. SEM图谱则表明二硫化钼为纳米花状结构, 颗粒直径300 nm左右, 由几十上百片花瓣组成, 每片花瓣厚度十个纳米左右. 通过以硅钨酸为变量的梯度实验, 研究发现, 硅钨酸对于纳米花状MoS2的形成具有重要作用, 不添加硅钨酸, 无法形成纳米花状MoS2, 此外, 硅钨酸的剂量会影响合成MoS2的大小和形貌. 本文还对纳米花状二硫化钼的形成机理做了初步的讨论.

关键词:

二硫化钼 /
纳米花 /
水热法

Abstract

High-purity flower-like MoS2 microspheres have been successfully synthesized by hydrothermal method using Na2MoO4 and CH3CSNH2 as precursors, and H4O40SiW12 as an additive. Samples are characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectrometer (EDS). XRD and EDS patterns show that the as-prepared samples are MoS2, which have good crystallinity with a well-stacked layered structure. SEM images show that the as-prepared MoS2 are composed of flower-like microspheres with a mean diameter about 300 nm, the structures of which are constructed from dozens of hundreds of MoS2 nano-sheet with a thickness of several nanometers. It is also found that the silicotungstic acid plays an important role in the formation of the flower-like MoS2 microspheres, which could affect the size and morphology of the MoS2. Flower-like MoS2 is not found in the as-prepared product without adding silicotungstic acid. A formation mechanism of MoS2 microspheres is tentatively given.

Keywords:

MoS2 /
nanoflower /
hydrothermal method

作者及机构信息

1.
中国计量学院, 光学与电子科技学院, 杭州 310018

基金项目: 国家自然科学基金(批准号: 61006051, 61177050)、浙江省大学生科技创新活动计划(批准号: 2013R409016)和浙江省科技厅公益技术应用研究(批准号: 2013C31068)资助的课题.

Authors and contacts

1.
College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 61006051, 61177050), the College students in Zhejiang Province Science and Technology Innovation Activities Plan, China (Grant No. 2013R409016), and the Science and Technology Department of Zhejiang Province Public Interest Research Technology, China (Grant No. 2013C31068).

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施引文献

[1]	Guo S B, Kang Q P, Cai C B, Qu X H 2012 Rare Metals. 31 368
[2]	Guo H H, Yang T, Tao P, Zhang Z D 2014 Chin. Phys. B 23 017201
[3]	Zhou W, Yin Z Y, Du Y P, Huang X, Zeng Z Y, Fan Z X, Liu H, Wang J Y, Zhang H 2013 Small 9 140
[4]	Rapoport L, N Fleischer, R Tenne 2005 Journal of Materials Chemistry 15 1782
[5]	Whittingham M S 2004 Chemical Reviews 104 4271
[6]	Cheng F Y, Chen J 2006 Journal of Materials Research. 21 2744
[7]	Li Y G, Wang H L, Xie L M, Liang Y Y, Hong G S, Dai H J 2011 Journal of the American Chemical Society 133 7296
[8]	Frindt R F, Arrott, A S, Curzon A E, Heinrich B, Morrison S R, Templeton T L, Divigalpitiya R, Gee M A, Joensen P, Schurer P J 1991 Journal of Applied Physics 70 6224
[9]	Dong H H 2013 Acta Phys. Sin. 62 206101 (in Chinese) [董海明 2013 物理学报 62 206101]
[10]	Liu J, Liang P, Shu H B, Shen T, Xing S, Wu Q 2014 Acta Phys. Sin. 63 117101 (in Chinese) [刘俊, 梁培, 舒海波, 沈涛, 邢凇, 吴琼 2014 物理学报 63 117101]
[11]	Zhang Z J, Zhang J, Xue Q J 1994 Journal of Physical Chemistry. 98 12973
[12]	Li X M, Long M Q, Cui L L, Xiao J, Xu H 2014 Chin. Phys. B 23 047307
[13]	Li H, Yin Z Y, He Q Y, Li H, Huang X, Lu G, Fam Derrick, Wen H, Tok, Alfred I Y, Zhang Q, Zhang H 2012 Small 8 63
[14]	Radisavljevic B, Radenovic A, Brivio J, Giacometti V, Kis A 2011 Nature Nanotechnology. 6 147
[15]	Lopez-Sanchez O, Lembke D, Kayci M, Radenovic A, Kis A 2013 Nature Nanotechnology. 8 497
[16]	Xiang Q J, Yu J G, Jaroniec M 2012 Journal of the American Chemical Society 134 6575
[17]	Liu Y, Yu Y X, Zhang W D 2013 Journal of Physical Chemistry C 117 12949
[18]	Margulis L, Salitra G, Tenne R, Tallanker M 1993 Nature 365 113
[19]	Li W J, Shi E W, Ko J M, Chen Z Z, Ogino H, Fukuda T 2003 Journal of Crystal Growth. 250 418
[20]	Li Q, Walter E C, Van der Veer W E, Murray B J, Newberg J T, Bohannan E W, Switzer J A, Hemminger J C, Penner R M 2005 The Journal of Physical Chemistry B 109 3169
[21]	Chen J, Li S L, Xu Q, Tanaka K 2002 Chemical Communications. 16 1722
[22]	Albiter MA, Huirache-Acuna R, Paraguay-Delgado F, Rico JL, Alonso-Nunez G 2006 Nanotechnology. 17 3473
[23]	Dhas N A, Suslick K S 2005 Journal of the American Chemical Society. 127 2368
[24]	Li Y, Bando Y, Golberg D 2003 Applied Physics Letters. 82 1962
[25]	Novoselov KS, Jiang D, Schedin F, Booth TJ, Khotkevich VV, Morozov SV, Geim AK 2005 Proceedings of the National Academy of Sciences of the United States of America. 102 10451
[26]	Coleman J N, Lotya M, O'Neill A, Bergin S D, King P J, Khan U, Young K, Gaucher A, De S, Smith R J 2011 Science. 331 568
[27]	Castellanos-Gomez A, Barkelid M, Goossens AM, Calado V E, Van der Zant, H SJ 2012 Nano Letters. 12 3187
[28]	Helveg S, Lauritsen J V, Lægsgaard E, Stensgaard I, Nørskov J K, Clausen BS, Topsøe H, Besenbacher F 2000 Physical Review Letters 84 951
[29]	Najmaei S, Liu Z, Zhou W, Zou X L, Shi G, Lei S D, Yakobson B I, Idrobo J C, Ajayan P M, Lou J 2013 Nature Materials. 12 754
[30]	Chang K, Chen W 2011 ACS Nano. 5 4720
[31]	Yuan H J, Chen Y Q, Yu F, Peng Y H, He X W, Zhao D, Tang D S 2011 Chin. Phys. B 20 036103
[32]	Cundy C S, Cox P A 2003 Chemical Reviews 103 663
[33]	Tang G G, Sun J R, Wei C, Wu K Q, Ji X R, Liu S S, Tang H, Li C S 2012 Materials Letters 86 9
[34]	Yang J, Li C X, Quan Z W, Zhang C, Yang P, Li Y, Yu C, Lin J 2008 The Journal of Physical Chemistry C 112 12777

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