A Soluble ‘Ba(Ni-ett)’ (ett = 1,1,2,2-Ethenetetrathiolate) Derived Thermoelectric Material

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Electronic Materials Letters Pub Date : 2023-09-01 DOI:10.1007/s13391-023-00454-z

Yaoyang Hu, Geoffrey Rivers, Michael P. Weir, David B. Amabilino, Christopher J. Tuck, Ricky D. Wildman, Oleg Makarovsky, Simon Woodward

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Abstract

We describe the synthesis and characterisation of the first of a new class of soluble ladder oligomeric thermoelectric material based on previously unutilised ethene-1,1,2,2-tetrasulfonic acid. Reaction of Ba(OH)₂ and propionic acid at a 1:1 stoichiometry leads to the formation of the previously unrecognised soluble [Ba(OH)(O₂CEt)]⋅H₂O. The latter when used to hydrolyse 1,3,4,6-tetrathiapentalene-2,5-dione (TPD), in the presence of NiCl₂, forms a new material whose elemental composition is in accord with the formula [(EtCO₂Ba)₄Ni₈{(O₃S)₂C = C(SO₃)₂}₅]⋅22H₂O (4). Compound 4 can be pressed into pellets, drop-cast as DMSO solutions or ink-jet printed (down to sub-mm resolutions). While its room temperature thermoelectric properties are modest (σ_max 0.04 S cm⁻¹ and Seebeck coefficient, α_max − 25.8 μV K⁻¹) we introduce a versatile new oligomeric material that opens new possible synthetic routes for n-type thermoelectrics.

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可溶性‘Ba（Ni ett）’（ett = 1,1,2,2-四硫代乙烯酯）衍生的热电材料

我们描述了基于以前未利用的乙烯-1,1,2,2-四磺酸的第一种新型可溶性梯形低聚热电材料的合成和特性。Ba(OH)2和丙酸以1:1的比例发生反应，形成了以前未曾认识到的可溶性[Ba(OH)(O2CEt)]⋅H2O。后者在 NiCl2 的存在下用于水解 1,3,4,6-四硫杂戊烯-2,5-二酮（TPD）时，会形成一种新材料，其元素组成符合[(EtCO2Ba)4Ni8{(O3S)2C = C(SO3)2}5]⋅22H2O（4）式。化合物 4 可压制成颗粒、滴铸成 DMSO 溶液或喷墨打印（分辨率可达亚毫米）。虽然它的室温热电性能不高（σmax 0.04 S cm-1 和塞贝克系数 αmax - 25.8 μV K-1），但我们介绍了一种多功能的新型低聚物材料，它为 n 型热电材料开辟了新的合成途径。

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来源期刊

Electronic Materials Letters 工程技术-材料科学：综合

CiteScore

4.70

自引率

20.80%

发文量

审稿时长

2.3 months

期刊介绍： Electronic Materials Letters is an official journal of the Korean Institute of Metals and Materials. It is a peer-reviewed international journal publishing print and online version. It covers all disciplines of research and technology in electronic materials. Emphasis is placed on science, engineering and applications of advanced materials, including electronic, magnetic, optical, organic, electrochemical, mechanical, and nanoscale materials. The aspects of synthesis and processing include thin films, nanostructures, self assembly, and bulk, all related to thermodynamics, kinetics and/or modeling.