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Systematic characterization of transport and thermoelectric properties of a macroscopic graphene fiber
  • ISSN号:0441-3776
  • 期刊名称:《化学通报》
  • 时间:0
  • 分类:O[理学]
  • 作者机构:[1]Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China, [2]MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Key Laboratory of Adsorption and Separation Materials & Technologies of Zhejiang Province, Zhejiang University, Hangzhou 310027, China, [3]Department of Thermal Engineering, Tsinghua University, Beijing 100084, China, [4]Key Laboratory of Process Fluid Filtration and Separation, College of Mechanical and Transportation Engineering, China University ot Petroleum, Beijing, Beijing 102249, China
  • 相关基金:This work was supported by the National Natural Science Foundation of China (Nos. 51406236, 51576105, 51327001, 51336009, 51636002, 21325417 and 51533008), the Science Foundation of China University of Petroleum, Beijing (Nos. 2462013YJRC027, and 2462015YQ0402), the Science Fund for Creative Research Groups (No. 51321002), and Tsinghua University Initiative Scientific Research Program.
中文摘要:

Graphene,有非凡的电、热、有弹性的性能的二维的材料,是未来技术的一个潜在的候选人。然而, graphene 的优异性质还没为 graphenederived 被认识到宏观的结构象 graphene 纤维那样。在这研究,我们系统地调查了温度(T) 依赖者运输和 graphene 纤维的热电的性质,包括热传导性() ,电的电导率() ,并且 Seebeck 系数(S) 。从 45.8 ~ 149.7 Wd 增加

英文摘要:

Graphene, a two-dimensional material with extraordinary electrical, thermal, and elastic performance, is a potential candidate for future technologies. However, the superior properties of graphene have not yet been realized for graphenederived macroscopic structures such as graphene fibers. In this study, we systematically investigated the temperature (T )-dependent transport and thermoelectric properties of graphene fiber, including the thermal conductivity (A), electrical conductivity (o), and Seebeck coefficient (S). A increases from 45.8 to 149.7 W·m^-1·K^-1 and then decreases as T increases from 80 to 290 K, indicating the boundary-scattering and three-phonon Umklapp scattering processes. σ increases with T from 7.1 × 10^4 to 1.18 × 10^5 S·m^-1, which can be best explained by the hopping mechanism. S ranges from -3.9 to 0.8 μV·K^-1 and undergoes a sign transition at approximately 100 K.

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期刊信息
  • 《化学通报》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学院
  • 主办单位:中国化学会 中国科学院化学研究所
  • 主编:张德清
  • 地址:北京2709信箱
  • 邮编:100190
  • 邮箱:hxtb@iccas.ac.cn
  • 电话:010-62554183 62588928
  • 国际标准刊号:ISSN:0441-3776
  • 国内统一刊号:ISSN:11-1804/O6
  • 邮发代号:2-28
  • 获奖情况:
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:20665