Solvothermal Synthesis of Tetrahedrite: Speeding Up the Process of Thermoelectric Material Generation

Derak J. James, Xu Lu, Donald T. Morelli, Stephanie L. Brock

Research output: Contribution to journalArticle

  • 16 Citations

Abstract

Derivatives of synthetic tetrahedrite, Cu12Sb4S13, are receiving increasing attention in the thermoelectric community due to their exploitation of plentiful, relatively nontoxic elements, combined with a thermoelectric performance that rivals that of PbTe-based compounds. However, traditional synthetic methods require weeks of annealing at high temperatures (450-600 °C) and periodic regrinding of the samples. Here we report a solvothermal method to produce tetrahedrite that requires only 1 day of heating at a relatively low temperature (155 °C). This allows preparation of multiple samples at once and is potentially scalable. The solvothermal material described herein demonstrates a dimensionless figure of merit (ZT) vs temperature curve comparable to that of solid-state tetrahedrite, achieving the same ZT of 0.63 at 720 K. As with the materials from solid-state synthesis, products from this rapid solvothermal synthesis can be improved by mixing in a 1:1 molar ratio with the Zn-containing natural mineral, tennantite, to achieve 0.9 mol equiv of Zn. This leads to a 36% increase in ZT at 720 K for solvothermal tetrahedrite, to 0.85.

LanguageEnglish (US)
Pages23623-23632
Number of pages10
JournalACS Applied Materials and Interfaces
Volume7
Issue number42
DOIs
StatePublished - Oct 28 2015

Profile

Temperature
Minerals
Annealing
Derivatives
Heating

Keywords

  • CuSbS
  • mineral
  • tennantite
  • zinc doping
  • ZT

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Solvothermal Synthesis of Tetrahedrite : Speeding Up the Process of Thermoelectric Material Generation. / James, Derak J.; Lu, Xu; Morelli, Donald T.; Brock, Stephanie L.

In: ACS Applied Materials and Interfaces, Vol. 7, No. 42, 28.10.2015, p. 23623-23632.

Research output: Contribution to journalArticle

@article{720c97c1d098447684c905ed54518136,
title = "Solvothermal Synthesis of Tetrahedrite: Speeding Up the Process of Thermoelectric Material Generation",
abstract = "Derivatives of synthetic tetrahedrite, Cu12Sb4S13, are receiving increasing attention in the thermoelectric community due to their exploitation of plentiful, relatively nontoxic elements, combined with a thermoelectric performance that rivals that of PbTe-based compounds. However, traditional synthetic methods require weeks of annealing at high temperatures (450-600 °C) and periodic regrinding of the samples. Here we report a solvothermal method to produce tetrahedrite that requires only 1 day of heating at a relatively low temperature (155 °C). This allows preparation of multiple samples at once and is potentially scalable. The solvothermal material described herein demonstrates a dimensionless figure of merit (ZT) vs temperature curve comparable to that of solid-state tetrahedrite, achieving the same ZT of 0.63 at 720 K. As with the materials from solid-state synthesis, products from this rapid solvothermal synthesis can be improved by mixing in a 1:1 molar ratio with the Zn-containing natural mineral, tennantite, to achieve 0.9 mol equiv of Zn. This leads to a 36{\%} increase in ZT at 720 K for solvothermal tetrahedrite, to 0.85.",
keywords = "CuSbS, mineral, tennantite, zinc doping, ZT",
author = "James, {Derak J.} and Xu Lu and Morelli, {Donald T.} and Brock, {Stephanie L.}",
year = "2015",
month = "10",
day = "28",
doi = "10.1021/acsami.5b07141",
language = "English (US)",
volume = "7",
pages = "23623--23632",
journal = "ACS applied materials & interfaces",
issn = "1944-8244",
publisher = "American Chemical Society",
number = "42",

}

TY - JOUR

T1 - Solvothermal Synthesis of Tetrahedrite

T2 - ACS applied materials & interfaces

AU - James,Derak J.

AU - Lu,Xu

AU - Morelli,Donald T.

AU - Brock,Stephanie L.

PY - 2015/10/28

Y1 - 2015/10/28

N2 - Derivatives of synthetic tetrahedrite, Cu12Sb4S13, are receiving increasing attention in the thermoelectric community due to their exploitation of plentiful, relatively nontoxic elements, combined with a thermoelectric performance that rivals that of PbTe-based compounds. However, traditional synthetic methods require weeks of annealing at high temperatures (450-600 °C) and periodic regrinding of the samples. Here we report a solvothermal method to produce tetrahedrite that requires only 1 day of heating at a relatively low temperature (155 °C). This allows preparation of multiple samples at once and is potentially scalable. The solvothermal material described herein demonstrates a dimensionless figure of merit (ZT) vs temperature curve comparable to that of solid-state tetrahedrite, achieving the same ZT of 0.63 at 720 K. As with the materials from solid-state synthesis, products from this rapid solvothermal synthesis can be improved by mixing in a 1:1 molar ratio with the Zn-containing natural mineral, tennantite, to achieve 0.9 mol equiv of Zn. This leads to a 36% increase in ZT at 720 K for solvothermal tetrahedrite, to 0.85.

AB - Derivatives of synthetic tetrahedrite, Cu12Sb4S13, are receiving increasing attention in the thermoelectric community due to their exploitation of plentiful, relatively nontoxic elements, combined with a thermoelectric performance that rivals that of PbTe-based compounds. However, traditional synthetic methods require weeks of annealing at high temperatures (450-600 °C) and periodic regrinding of the samples. Here we report a solvothermal method to produce tetrahedrite that requires only 1 day of heating at a relatively low temperature (155 °C). This allows preparation of multiple samples at once and is potentially scalable. The solvothermal material described herein demonstrates a dimensionless figure of merit (ZT) vs temperature curve comparable to that of solid-state tetrahedrite, achieving the same ZT of 0.63 at 720 K. As with the materials from solid-state synthesis, products from this rapid solvothermal synthesis can be improved by mixing in a 1:1 molar ratio with the Zn-containing natural mineral, tennantite, to achieve 0.9 mol equiv of Zn. This leads to a 36% increase in ZT at 720 K for solvothermal tetrahedrite, to 0.85.

KW - CuSbS

KW - mineral

KW - tennantite

KW - zinc doping

KW - ZT

UR - http://www.scopus.com/inward/record.url?scp=84946057784&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84946057784&partnerID=8YFLogxK

U2 - 10.1021/acsami.5b07141

DO - 10.1021/acsami.5b07141

M3 - Article

VL - 7

SP - 23623

EP - 23632

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

SN - 1944-8244

IS - 42

ER -