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Nanocrystals:solution-based synthesis and Applications as Nanocatalysts

Nano Research 2009年第1期2卷 30-46页

作者： Dingsheng Wang Ting Xie Yadong Li Department of Chemistry Tsinghua UniversityBeijing 100084China

Nanocrystals are emerging as key materials due to their novel shape-and size-dependent chemical and physical properties that differ drastically from their bulk *** main challenges in this field remain rationally controlled synthesis and large scale *** article reviews recent progress in our laboratory related to solution-based synthesis of various nanostructures,including zero-dimensional(0-D)nanocrystals,1-D nanowires and nanorods,hollow structures,and superlattice *** the other hand,the essential goal for nanoresearchers is to achieve industrial applications of nanostructured *** the past decades,these fascinating materials have been widely used in many promising fields such as nanofabrication,nanodevices,nanobiology,and ***,we focus on their applications as nanocatalysts and try to illustrate the main problems and future directions in this area based on our recent endeavors in catalytic applications of nanocrystals.

关键词： Nanocrystals solution-based synthesis nucleation and growth mechanism nanocatalysts

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Facile solution-based synthesis and Optical Properties of Co3O4 Nanoparticles at Low-temperature

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Chemical Research in Chinese Universities 2013年第6期29卷 1040-1044页

作者： LI Yun-ling ZHAO Jing-zhe ZHAO Yan HAO Xin-li HOU Zhen-yu College of Chemistry and Chemical Engineering Henan Institute of Science and TechnologyXinxiang 453003 P.R.China College of Chemistry and Chemical Engineering Hunan University Changsha 410082 P.R.China

Cobalt oxide（C0304） with different morphologies was achieved by a simple solution-based method. Various parallel experiments show that several experimental parameters, such as the concentrations of NaOH and ethylene glyeol（EG）, play important roles in the morphological controlling of C0304 nanoparticles. A lower concen- tration of NaOH favors quasi-spherical product with a uniform size of about 15 nm, whereas a higher concentration of NaOH generally leads to the formation of nanoplates with wide size distribution. In addition, C0304 nanorods were also obtained partially by introducing a certain amount of EG. A possible mechanism was proposed for the selective formation of C0304 with various morphologies. X-Ray diffraction（XRD）, infrared（IR） spectrometry, scanning elec- tron microscopy（SEM）, transmission electron microscopy（TEM） and UV-Vis spectrometry were used to characterize the samples.

关键词： Cobalt oxide solution-based synthesis Nanostructure Optical property

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Bi_(2)S_(3) Nanotubes:Facile synthesis and Growth Mechanism

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Nano Research 2009年第2期2卷 130-134页

作者： Dingsheng Wang Chenhui Hao Wen Zheng Xiaoling Ma Deren Chu Qing Peng Yadong Li Department of Chemistry Tsinghua UniversityBeijing 100084China

synthesis of tubular nanomaterials has become a prolific area of investigation due to their wide range of applications.A facile solution-based method has been designed to fabricate uniform Bi_(2)S_(3)nanotubes with average size of 20 nm×160 nm using only bismuth nitrate(Bi(NO_(3))_(3)·5H_(2)O)and sulfur powder(S)as the reactants and octadecylamine(ODA)as the *** X-ray diffraction(XRD),transmission electron microscopy(TEM),high-resolution TEM(HRTEM),and energy dispersive spectroscopy(EDX)experiments were employed to characterize the resulting Bi_(2)S_(3)nanotubes and the classic rolling mechanism was applied to explain their formation process.

关键词： Bi_(2)S_(3) nanotubes solution-based synthesis rolling mechanism

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