A new 3-D coordination polymer as a precursor for CuI-based thermoelectric composites

Shi Qiang Bai, Ivy Hoi Ka Wong, Nan Zhang, Karen Lin Ke, Ming Lin, David James Young, T. S.Andy Hor

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Two complexes, [Cu6I6(L1)3]n (I) and [Cu4I4(L2)2]n (II) (L1 = 1,4-bis(phenylthio)but-2-yne; L2 = 1,4-bis(phenylthio)butane), as precursors for thermoelectric composites were prepared using a literature procedure. During the preparation of I, an unexpected 3-D polymorph [Cu4I4(L1)2]n (1) with a triclinic space group and an infinite [CuI]n staircase structure was obtained. This new polymorph (1) exhibited the same structure at both room temperature and 173 K. Complexes 1 and II were therefore pyrolysed to composites 2 and 3, respectively, at 400 °C under a nitrogen gas flow. Composite 3 was pale in color with a low carbon content (0.05 wt%) and easily disassembled during handling. By comparison, the high carbon containing (10.2 wt%) composite 2 can be compressed into a robust, light pellet (density 3.58 g cm−3), which showed a moderate to high Seebeck coefficient (543-1308 μV K−1) over the temperature range 70-240 °C.

Original languageEnglish
Pages (from-to)16292-16298
Number of pages7
JournalDalton Transactions
Volume47
Issue number45
DOIs
Publication statusPublished - 7 Dec 2018
Externally publishedYes

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Polymers
Composite materials
Polymorphism
Carbon
Seebeck coefficient
Flow of gases
Nitrogen
Color
Temperature

Cite this

Bai, S. Q., Wong, I. H. K., Zhang, N., Lin Ke, K., Lin, M., Young, D. J., & Hor, T. S. A. (2018). A new 3-D coordination polymer as a precursor for CuI-based thermoelectric composites. Dalton Transactions, 47(45), 16292-16298. https://doi.org/10.1039/c8dt03219j
Bai, Shi Qiang ; Wong, Ivy Hoi Ka ; Zhang, Nan ; Lin Ke, Karen ; Lin, Ming ; Young, David James ; Hor, T. S.Andy. / A new 3-D coordination polymer as a precursor for CuI-based thermoelectric composites. In: Dalton Transactions. 2018 ; Vol. 47, No. 45. pp. 16292-16298.
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abstract = "Two complexes, [Cu6I6(L1)3]n (I) and [Cu4I4(L2)2]n (II) (L1 = 1,4-bis(phenylthio)but-2-yne; L2 = 1,4-bis(phenylthio)butane), as precursors for thermoelectric composites were prepared using a literature procedure. During the preparation of I, an unexpected 3-D polymorph [Cu4I4(L1)2]n (1) with a triclinic space group and an infinite [CuI]n staircase structure was obtained. This new polymorph (1) exhibited the same structure at both room temperature and 173 K. Complexes 1 and II were therefore pyrolysed to composites 2 and 3, respectively, at 400 °C under a nitrogen gas flow. Composite 3 was pale in color with a low carbon content (0.05 wt{\%}) and easily disassembled during handling. By comparison, the high carbon containing (10.2 wt{\%}) composite 2 can be compressed into a robust, light pellet (density 3.58 g cm−3), which showed a moderate to high Seebeck coefficient (543-1308 μV K−1) over the temperature range 70-240 °C.",
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Bai, SQ, Wong, IHK, Zhang, N, Lin Ke, K, Lin, M, Young, DJ & Hor, TSA 2018, 'A new 3-D coordination polymer as a precursor for CuI-based thermoelectric composites', Dalton Transactions, vol. 47, no. 45, pp. 16292-16298. https://doi.org/10.1039/c8dt03219j

A new 3-D coordination polymer as a precursor for CuI-based thermoelectric composites. / Bai, Shi Qiang; Wong, Ivy Hoi Ka; Zhang, Nan; Lin Ke, Karen; Lin, Ming; Young, David James; Hor, T. S.Andy.

In: Dalton Transactions, Vol. 47, No. 45, 07.12.2018, p. 16292-16298.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Bai, Shi Qiang

AU - Wong, Ivy Hoi Ka

AU - Zhang, Nan

AU - Lin Ke, Karen

AU - Lin, Ming

AU - Young, David James

AU - Hor, T. S.Andy

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