TY - JOUR
T1 - A Novel Thermocell System Using Proton Solvation Entropy
AU - Kobayashi, Takashi
AU - Yamada, Teppei
AU - Tadokoro, Makoto
AU - Kimizuka, Nobuo
N1 - Funding Information:
This work was partly supported by JST PRESTO Grant Number JPMJPR141D, JSPS KAKENHI Grant Numbers JP25220805, JP17H03046, JP20H02714, JP20K21176 JP19H05061 (Hydrogenomics), JP16H06513 (Coordination Asymmetry). We sincerely appreciated the fruitful discussion with Prof. Shigenori Fujikawa, who first provides us an idea of the entropy of proton solvation.
Funding Information:
This work was partly supported by JST PRESTO Grant Number JPMJPR141D, JSPS KAKENHI Grant Numbers JP25220805, JP17H03046, JP20H02714, JP20K21176 JP19H05061 (Hydrogenomics), JP16H06513 (Coordination Asymmetry). We sincerely appreciated the fruitful discussion with Prof. Shigenori Fujikawa, who first provides us an idea of the entropy of proton solvation.
Publisher Copyright:
© 2020 Wiley-VCH GmbH
PY - 2021/3/1
Y1 - 2021/3/1
N2 - The entropy change associated with proton-coupled electron transfer (PCET) reactions significantly enhance the Seebeck coefficient (Se) of thermocells. A redox pair of [Ru(Hxim)6]2+/3+ (Him=imidazole, x=0≈1) releases three protons in their one-electron redox reactions in thermocells, which gave a remarkably high Se of −3.7 mV K−1 as confirmed by temperature-dependent square wave voltammetry. The value of Se is proportional to the redox reaction entropy (ΔSrc), which increased with the number of dissociating protons. This result demonstrates the utility of PCET reaction toward efficient thermoelectric conversion.
AB - The entropy change associated with proton-coupled electron transfer (PCET) reactions significantly enhance the Seebeck coefficient (Se) of thermocells. A redox pair of [Ru(Hxim)6]2+/3+ (Him=imidazole, x=0≈1) releases three protons in their one-electron redox reactions in thermocells, which gave a remarkably high Se of −3.7 mV K−1 as confirmed by temperature-dependent square wave voltammetry. The value of Se is proportional to the redox reaction entropy (ΔSrc), which increased with the number of dissociating protons. This result demonstrates the utility of PCET reaction toward efficient thermoelectric conversion.
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U2 - 10.1002/chem.202004562
DO - 10.1002/chem.202004562
M3 - Article
C2 - 33205557
AN - SCOPUS:85101789339
SN - 0947-6539
VL - 27
SP - 4287
EP - 4290
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 13
ER -