Preparation of WS2 Nanoplates by Mechanical Activation Method
摘 要
以WO3和硫为原料, 采用机械活化法制备了2H-WS2纳米片; 采用XRD、SEM、TEM等手段研究了反应温度、保温时间及退火条件对产物的影响, 并分析了反应过程和机理。结果表明: 此方法的硫化过程为一步式反应, 球磨对这一过程起到了重要的作用; 球磨后的WS2纳米片退火时会发生非典型的自组装, 此过程受到退火温度的制约; 球磨可以限制退火时薄片的聚合长大, 从而得到均匀有序、厚度约30 nm的WS2纳米片。
Abstract
2H-WS2 nanoplates with thickness of 30 nm were obtained by a mechanical activation method using WO3 and sulfur as raw materials. The effects of temperature, preserving time and annealing conditions on products were characterized by XRD, SEM and TEM. The reaction process and reaction mechanism were analyzed. Results show that sulfurization was finished in only one step, and ball-milling played a crucial role in this reaction. A typical self-assembly step was realized in annealing process, and was controlled by the annealing temperature. In order to get homogeneous hexagonal WS2 nanoplates, ball-milling before annealing was necessary, which could prevent nanoplates from growing up.
中图分类号 TQ125.1
所属栏目 纳米材料
基金项目
收稿日期 2012/2/28
修改稿日期 2012/10/18
网络出版日期
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备注徐泽众(1987-), 男, 山东济南人, 硕士研究生。
引用该论文: XU Ze-zhong,WANG De-zhi,WU Zhuang-zhi,ZHU Wei,WANG Chang-long. Preparation of WS2 Nanoplates by Mechanical Activation Method[J]. Materials for mechancial engineering, 2013, 37(3): 61~64
徐泽众,王德志,吴壮志,朱威,王长龙. 机械活化法制备WS2纳米片[J]. 机械工程材料, 2013, 37(3): 61~64
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参考文献
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【5】ROTHSCHILD A,COHEN S R,TENNE R. WS2 nanotubes as tips in scanning probe microscopy[J].Appl Phys Lett,1999,75(25):4025-4027.
【6】YE L N, WU C Z, GUO W, et al. MoS2 hierarchical hollow cubic cages assembled by bilayers: one-step synthesis and their electrochemical hydrogen storage properties[J].Chem Commun, 2006,45:4738-4740.
【7】BALLIF C, REGULA M, LEVY F. Optical and electrical properties of semiconducting WS2 thin films: from macroscopic to local probe measurements[J].Sol Energy Mater Sol Cells,1999,57:189-207
【8】郑遗凡,宋旭春,刘波,等. 嵌套球形层状封闭结构纳米二硫化钨的合成与机理探讨[J].无机材料学报,2004,19(3):653-656.
【9】ZELENSKI C M, DORHOUT P K. Template synthesis of near-monodisperse1 microscale nanofibers and nanotubules of MoS2[J].J Am Chem Soc,1998,120:734-742.
【10】WU J F, FU X. A low-temperature solvothermal method to prepare hollow spherical WS2 nanoparticles modified by TOA[J].Mater Lett, 2007,61,(21):4332-4335.
【11】REMSKAR M, MRZEL A, SKRABA Z, et al. Self-assembly of subnanometer-diameter single-wall MoS2 nanotubes[J].Science,2001,292:479-481.
【12】ELLMER K. Preparation routes based on magnetron sputtering for tungsten disulfide (WS2) films for thin-film solar cells[J].Phys Stat Sol,2008,245(9):1745-1760.
【13】PARILLA P A, DILLON A C,JONES K M, et al. Studies of MoS2 structures produced by electron irradiation[J].Appl Phys Lett,1996,69(8):1065-1067.
【14】CHHOWALLA M, AMARATUNGA G A. Thin films of fullerene-like MoS2 nanoparticles with ultra-low friction and wear[J].Nature,2000,407:164-167.
【15】FELDMAN Y, WASSERMAN E, TENNE R. High-rate, gas-phase growth of MoS2 nested inorganic fullerenes and nanotubes[J].Science,1995,267:222-225.
【16】FELDMAN Y, ZAK A, TENNE R. New reactor for production of tungsten disulfide hollow onion-like (inorganic fullerene-like) nanoparticles[J].Solid State Sci,2000,2(6):663-672.
【17】YAN C L, XUE D F. Novel self-assembled MgO nanosheet and its precursors[J].J Phys Chem B,2005,109:12358-12361.
【18】XU A W, ANTONIETTI M, COLFEN H, et al. Uniform hexagonal plates of vaterite CaCO3 mesocrystals formed by biomimetic mineralization[J].Adv Funct Mater,2006,16: 903-908.
【19】MARGOLIN A, ROSENTSVEING R, ALBU-YARGON A, et al. Study of the growth mechanism of WS2 nanotubes produced by a fluidized bed reactor[J].J Mater Chem, 2004,14:617-624.
【20】曾一,赵鹏,王跃峰,等.气相反应条件对合成高纯度富勒烯结构二硫化钼的影响[J].中国钨业,2008,23(1):42-44
【21】WU Z Z, WANG D Z, LIANG X, et al. Novel hexagonal MoS2 nanoplates Formed by solid-state assembly of nanosheets[J].Journal of Crystal Growth,2010,312:1973-1976.
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