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The effect of 3d-electron configuration entropy on the temperature coefficient of redox potential in Co1−zMnz Prussian blue analogues

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Abstract

Recently, it was reported that a thermocell can convert temperature into electrical energy by using the difference in the thermal coefficient (α ≡ dV/dT) of the redox potential (V) between the cathode and anode materials. Here, we systematically investigated α of NaxCo1−zMnz[Fe(CN)6]y (Co1−zMnz-PBA) against Mn concentration (z). The z-dependence of α is interpreted in terms of the 3d-electron configuration entropy (ΔS3d) of the redox site. Utilization of S3d is a strategy effective for the design of high-|α| materials for energy harvesting thermocells.

Graphical abstract: The effect of 3d-electron configuration entropy on the temperature coefficient of redox potential in Co1−zMnz Prussian blue analogues

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Publication details

The article was received on 31 Oct 2018, accepted on 12 Nov 2018 and first published on 13 Nov 2018


Article type: Paper
DOI: 10.1039/C8DT04338H
Citation: Dalton Trans., 2019, Advance Article
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    The effect of 3d-electron configuration entropy on the temperature coefficient of redox potential in Co1−zMnz Prussian blue analogues

    H. Iwaizumi, Y. Fujiwara, Y. Fukuzumi and Y. Moritomo, Dalton Trans., 2019, Advance Article , DOI: 10.1039/C8DT04338H

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