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Preparation, characterization and thermoelectric properties of a polyaniline matrix Ge0.94Pb0.01Bi0.05Te composite

  • Sude Ma , Hao Zeng , Changxing Zhang , Chun Liu , Jianjun Zhang and Qian Xu
Published/Copyright: August 28, 2017
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Materials Testing
From the journal Materials Testing Volume 59 Issue 9

Abstract

In times of industrialization, much low temperature waste heat is released and no viable technology exists which can produce electricity from this low energy density heat. So the long sought-after class thermoelectric (TE) material which directly achieves conversion between thermal and electrical energy obtains much attention. However, the traditional TE materials are alloys of inorganic materials and expensive, and most of them have some level of toxicity, so the research on organic TE materials is very important. The polyaniline (PANI, i. e., a conducting polymer) and PANI matrix Ge0.94Pb0.01Bi0.05Te composite material were prepared. The chemical structure, microstructure and thermoelectric properties were investigated by FTIR, XRD, SEM and ZEM. Results showed that the molecule chains in the PANI were not ranged very neatly, and Ge0.94Pb0.01Bi0.05Te in the composite material formed interconnected network as 20 wt.-% Ge0.94Pb0.01Bi0.05Te was added. Power factor of the composite material increased greatly while its ZT was almost two times of PANI. The addition of Ge0.94Pb0.01Bi0.05Te was an effective method to increase the thermoelectric properties of PANI.

Kurzfassung

Viel Verlustwärme mit niedriger Temperatur entweicht in der heutigen Industralisierung und keine nutzbare Technologie existiert, um Elektrizität aus dieser Wärme mit einer niedrigen Energiedichte zu produzieren. Deshalb bekommen thermoelektrische Materialien, die eine direkte Konversation von thermischer in elektrische Energie erreichen, erhöhte Aufmerksamkeit. Allerdings bestehen die traditionellen thermoelektrischen Materialien aus anorganischen Komponenten und sind teuer. Die meisten davon haben eine gewisse Toxizität, so dass die Erforschung organischer thermoelektrischer Materialien sehr wichtig ist. Hierzu wurde ein Polyanilin (PANI, eine Art leitfähiges Polymer) und ein PANI-Matrix-Ge0.94Pb0.01Bi0.05Te-Kompositmaterial hergestellt. Die chemische Struktur, die Mikrostruktur und die thermoelektrischen Eigenschaften wurden mittels FTIR, XRD, REM und ZEM untersucht. Die Ergebnisse zeigen, dass die Molekülketten im PANI nicht sehr geordnet vorliegen und dass das Ge0.94Pb0.01Bi0.05Te im Kompositmaterial ein zusammenhängendes Netzwerk bildete, wenn 20 wt.-% Ge0.94Pb0.01Bi0.05Te zugesetzt wurden. Der Leistungsfaktor des Kompositmaterials stieg signifikant, während sein ZT etwa das Zweifache des PANI-Werts betrug. Die Zugabe von Ge0.94Pb0.01Bi0.05Te ist ein effektives Verfahren, um die thermoelektrischen Eigenschaften von PANI zu erhöhen.

*Correspondence Address, Prof. Dr. Sude Ma, Key Laboratory of Fluid and Power Machinery of Ministry of Education, Center for Advanced Materials and Energy, Xihua University, No.999, Jinzhou Road, Jinniu District, Chengdu City, Sichuan Province, Chengdu 610039, China, E-mail:

Prof. Dr. Sude Ma, born 1976, is Full Professor of Polymer Science and Engineering at the Center for Advanced Materials and Energy, Xihua University, Chengdu, China, with expertise in functional materials. He received his Master and PhD degrees from Xi'an Jiaotong University, Xi'an, China in 2003 and 2006, respectively, and conducted postdoctoral research at Tsinghua University, Beijing, China from 2008 to 2010. He joined Xihua University in 2011.

Hao Zeng, born 1993, is a master student of Material Sciences and Engineering at the Center for Advanced Materials and Energy, Xihua University, Chengdu, China. He received his Bachelor degree from Xihua University in 2015. In the same year, he joined Prof. Sude Ma's group. His research interest focuses on the preparation and applications of functional materials.

Changxing Zhang, born 1993, is a master student of Material Sciences and Engineering at the Center for Advanced Materials and Energy, Xihua University, Chengdu, China. He received his Bachelor degree from Qingdao University of Technology, China in 2015. In 2016, he joined Prof. Sude Ma's group. His research interest focuses on the preparation and applications of functional materials.

Chun Liu, born in 1992, is a master student of Material Sciences and Engineering at the Center for Advanced Materials and Energy, Xihua University, Chengdu, China. He received his Bachelor degree from Xihua University in 2014. In the same year, he joined Prof. Sude Ma's group. His research interest focuses on the preparation and applications of functional materials.

Associate Prof. Dr. Jianjun Zhang is Associate Professor of Materials Science and Engineering at the School of Materials Science and Engineering, Xihua University, Chengdu, China, with expertise in wear resistant materials. He received his PhD degree from Xi'an Jiaotong University, Xi'an, China, in 2011. He joined Xihua University in 2012.

Qian Xu, born 1991, is a master student of Material Sciences and Engineering at the Center for Advanced Materials and Energy, Xihua University, Chengdu, China. He received his Bachelor degree from Xihua University in 2013. In the same year, he joined Prof. Sude Ma's group. His research interest focuses on the preparation and applications of functional materials.

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Published Online: 2017-08-28
Published in Print: 2017-09-01

© 2017, Carl Hanser Verlag, München

Articles in the same Issue

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Effect of contact pressure on multiaxial fretting fatigue behavior of Al-Zn-Mg alloy
  5. Effect of various initial concentrations of CTAB on the noncovalent modified graphene oxide (MGNO) structure and thermal stability
  6. Bauschinger effect at elevated temperatures in a 2024-T3 aluminum alloy for designing wind turbine components
  7. Effect of Ni interlayer on diffusion bonding of a W alloy and a Ta alloy
  8. Comparison of the welding behavior of P/M borated and I/M borated stainless steel
  9. Detection of interfacial debonding in epoxy resin-bonded lead-steel structure using laser ultrasonics
  10. Effects of deep cryo treatment of high speed steel on the turning process of a medium carbon steel
  11. Weldability of superalloys alloy 718 and ATI® 718Plus™ – A study performed by Varestraint testing
  12. Strength and mechanical response of C/C composite open-hole and bolted plates
  13. Pullout performance of modified threads in glass fiber reinforced plastic (GFRP) composites
  14. Physico-chemical characterization of slag waste from coal gasification syngas plants: Effect of the gasification temperature on slag waste as construction material
  15. Preparation, characterization and thermoelectric properties of a polyaniline matrix Ge0.94Pb0.01Bi0.05Te composite
  16. Surface roughness analysis of greater cutting depths during hard turning
  17. Properties of fine soils contaminated with gas oil
  18. Numerical calculation and stress analysis of crack evolution in coal with a central hole under nonuniform load
https://doi.org/10.3139/120.111073

Articles in the same Issue

  1. Inhalt/Contents
  2. Contents
  3. Fachbeiträge/Technical Contributions
  4. Effect of contact pressure on multiaxial fretting fatigue behavior of Al-Zn-Mg alloy
  5. Effect of various initial concentrations of CTAB on the noncovalent modified graphene oxide (MGNO) structure and thermal stability
  6. Bauschinger effect at elevated temperatures in a 2024-T3 aluminum alloy for designing wind turbine components
  7. Effect of Ni interlayer on diffusion bonding of a W alloy and a Ta alloy
  8. Comparison of the welding behavior of P/M borated and I/M borated stainless steel
  9. Detection of interfacial debonding in epoxy resin-bonded lead-steel structure using laser ultrasonics
  10. Effects of deep cryo treatment of high speed steel on the turning process of a medium carbon steel
  11. Weldability of superalloys alloy 718 and ATI® 718Plus™ – A study performed by Varestraint testing
  12. Strength and mechanical response of C/C composite open-hole and bolted plates
  13. Pullout performance of modified threads in glass fiber reinforced plastic (GFRP) composites
  14. Physico-chemical characterization of slag waste from coal gasification syngas plants: Effect of the gasification temperature on slag waste as construction material
  15. Preparation, characterization and thermoelectric properties of a polyaniline matrix Ge0.94Pb0.01Bi0.05Te composite
  16. Surface roughness analysis of greater cutting depths during hard turning
  17. Properties of fine soils contaminated with gas oil
  18. Numerical calculation and stress analysis of crack evolution in coal with a central hole under nonuniform load
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