Gram-Scale Synthesis of Tetrahedrite Nanoparticles and Their Thermoelectric Properties

Takeshi Nakada; Mari Takahashi; Chiko Shijimaya; Koichi Higashimine; Wei Zhou; Pratibha Dwivedi; Michihiro Ohta; Hiroshi Takida; Takeo Akatsuka; Masanobu Miyata; Shinya Maenosono

doi:10.1021/acs.langmuir.9b03003

Gram-Scale Synthesis of Tetrahedrite Nanoparticles and Their Thermoelectric Properties

Langmuir. 2019 Dec 10;35(49):16335-16340. doi: 10.1021/acs.langmuir.9b03003. Epub 2019 Nov 21.

Affiliations

¹ School of Materials Science , Japan Advanced Institute of Science and Technology , 1-1 Asahidai , Nomi , Ishikawa 923-1292 , Japan.
² Center for Nano Materials and Technology , Japan Advanced Institute of Science and Technology , 1-1 Asahidai , Nomi , Ishikawa 923-1292 , Japan.
³ Research Institute for Energy Conservation , National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba , Ibaraki 308-8568 , Japan.
⁴ Research Center , Nippon Shokubai Co., Ltd. , Himeji , Hyogo 671-1292 , Japan.

PMID: 31715104
DOI: 10.1021/acs.langmuir.9b03003

Abstract

Here, we report a method for facile gram-scale synthesis of tetrahedrite (Cu₁₂Sb₄S₁₃) nanoparticles (NPs) with high quality and good reproducibility. The obtained NPs had a well-defined tetrahedral shape with a mean edge length of ∼70 nm. We sintered the NPs by the hot press technique to fabricate a nanostructured pellet for thermoelectric measurements. The figure of merit (ZT) value of the pellet was 0.52 at 675 K, which was comparable with the ZT value of the non-nanostructured counterpart.