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2003-2018 全部
为您找到包含“碲化物”的内容共3

陈美勇,刘俊来,胡建江,邹运鑫

2008-04-23

大兴安岭北段三道湾子金矿床属于中-低温热液型金矿床,含金石英脉产于上侏罗统塔木兰沟组粗面安山岩和粗面安山质角砾岩中。通过光学显微镜、扫描电子显微镜结合能谱分析,作者在矿脉中发现大量金、银。该矿

国家自然科学基金(40472105

中国地质大学(北京),中国地质大学(北京),黑龙江省地质调查研究总院, 哈尔滨,中国地质大学(北京)

#地球科学#

ZHAO Haoting,LI Guannan

In this paper, we have demonstrated a two-step method to synthesize Sb2Te3 nanorods by using Te nanorods as the self-sacrificed templates. Impurity-free poly-crystalline Sb2Te3 nanorods have been synthesized on a large scale. Strings of Sb2Te3 nanoplatelets have been also synthesized by adjusting the reaction condition for Te nanorod precursor,which may be attributed to the nucleation and epitaxial growth of the Sb2Te3 nanoplatelets on the surface of the templates by the reaction of unconsumed K2TeO3 with Sb3+ ions in the solution. The thermoelectric transport properties of the pressed Sb2Te3 nanorods sample were measured. Enhanced seebeck coefficient and reduced thermal conductivity were observed. The high resistivity of the sample may be ascribed to unoptimized interconnections.

2018-07-06

National Natural Science Foundation of China (51501159

Undergraduate Scientific and Technological Innovation Foundation(20172303003

Fundamental Research Funds for the Central Universities(XDJK2015C003

Faculty of Materials and Energy, Southwest University, Chongqing 400715,Faculty of Materials and Energy, Southwest University, Chongqing 400715

#Physics#

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Tai Guoan,Zeng Tian

A simple, surfactant-free, and high-efficient solvothermal approach has been developed to synthesize AgPbmSbTem+2 multicomponent thermoelectric sub-microwires. The AgPbmSbTem+2 nanostructures were prepared using Sb2(NO3)3, Pb(NO3)2, AgNO3 and Na2TeO3 as the reactants, ethylenediamine and ethylene diamine tetraacetic acid as the reducing and complexing agents. A diffusion-limited reaction mechanism was proposed to explain the formation of the nanostructures. The Seebeck coefficient of the bulk pellet pressed by the obtained AgPb18SbTe20 sub-microwires exhibits 22% enhancement over that of the corresponding bulk at room temperature. The synthetic route can be applied to gain other multicomponent telluride nanostructures.

2014-02-17

This work was supported by NSF (11302100)

The State Key Laboratory of Mechanics and Control of Mechanical Structures, College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China,College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, 29 Yudao Street, Nanjing 210016. China

#Materials Science#

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