首页|Electrochemical Impedance Analysis of Thermogalvanic Cells

Electrochemical Impedance Analysis of Thermogalvanic Cells

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Thermogalvanic cells(also known as thermo-electrochemical cells) that convert waste heat energy to electricity are a new type of energy conversion device.However,the electron transfer kinetics and mass transfer of redox couples have not been thoroughly studied.Here,the ion reaction and charge transport in thermogalvanic cells are investigated by electrochemical impedance analysis.We first propose the detailed impedance model followed experimental verification on three types of electrode materials.Parameters including kinetic rate constants and ion diffusion coefficients for the electrodes are obtained by fitting the impedance data.Our study shows explicitly that impedance analysis can provide useful information on selecting suitable electrode materials for thermogalvanic cells.

Thermogalvanic cellElectrochemical impedance spectroscopyKinetic rate constantCharge transferIon diffusion coefficient

YANG Peihua、FAN Hongjin

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School of Physical and Mathematical Sciences,Nanyang Technological University, Singapore 637371, Singapore

Supported by the AME Individual Research Grants 2018Project of the Agency for Science,Technology,and ResearchSingapore,and the MOE Tier 1 Grant

A1983c0026A*STARRG 157/19

2020

高等学校化学研究(英文版)
吉林大学

高等学校化学研究(英文版)

CSTPCDCSCDSCI
影响因子：0.871
ISSN：1005-9040
年,卷(期)：2020.36(3)
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