Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Thermodynamic Potentials01:26

Thermodynamic Potentials

1.3K
Thermodynamic potentials are state functions that are extremely useful in analyzing a thermodynamic system. They have dimensions of energy. The four important thermodynamic potentials are internal energy, enthalpy, Helmholtz free energy, and Gibbs free energy. These thermodynamic potentials can be expressed using two of the following variables: pressure, volume, temperature, and entropy. These two variables are expressed as the rate of change of the thermodynamic potential with respect to other...
1.3K
Entropy within the Cell01:22

Entropy within the Cell

12.4K
A living cell's primary tasks of obtaining, transforming, and using energy to do work may seem simple. However, the second law of thermodynamics explains why these tasks are harder than they appear. None of the energy transfers in the universe are completely efficient. In every energy transfer, some amount of energy is lost in a form that is unusable. In most cases, this form is heat energy. Thermodynamically, heat energy is defined as the energy transferred from one system to another that...
12.4K
Enthalpy of Solution02:39

Enthalpy of Solution

28.7K
There are two criteria that favor, but do not guarantee, the spontaneous formation of a solution:
28.7K
Aqueous Solutions and Heats of Hydration02:42

Aqueous Solutions and Heats of Hydration

16.8K
Water and other polar molecules are attracted to ions. The electrostatic attraction between an ion and a molecule with a dipole is called an ion-dipole attraction. These attractions play an important role in the dissolution of ionic compounds in water.
When ionic compounds dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution because water molecules surround and solvate the ions, reducing the strong electrostatic forces between them. This process...
16.8K
Entropy and Solvation02:05

Entropy and Solvation

8.0K
The process of surrounding a solute with solvent is called solvation. It involves evenly distributing the solute within the solvent. The rule of thumb for determining a solvent for a given compound is that like dissolves like. A good solvent has molecular characteristics similar to those of the compound to be dissolved. For example, polar solutions dissolve polar solutes, and apolar solvents dissolve apolar solutes. A polar solvent is a solvent that has a high dielectric constant (ϵ...
8.0K
Thermosensation01:43

Thermosensation

33.2K
Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
33.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Sterically protected π-electron systems for efficient solid-state photon upconversion.

Nature communications·2026
Same author

Enhancing photon upconversion properties in anthracene derivatives through meticulous control of excluded volume around π-systems.

Nanoscale·2026
Same author

Exploring Spin-State Selective Harvesting Pathways from Singlet Fission Dimers to a Near-Infrared-Emissive Spin-Flip Emitter.

Journal of the American Chemical Society·2026
Same author

Enthalpy-Entropy Compensation Governs the Solvent-Mixing Effect in Electrochemical Thermoelectric Conversion.

Journal of the American Chemical Society·2026
Same author

Reversible Supramolecular Hydrogel for Air-Tolerant Photon Upconversion: Key Development for Photocatalyst Recovery and Product Extraction in Aqueous Medium.

Chemistry of materials : a publication of the American Chemical Society·2025
Same author

Proton Conductive Supramolecular Architectures Based on a Cobalt Terpyridine-Biimidazole Complex: Hydrogen-Bonded Hexamer and Mixed-Valence 1D Chain.

Chemistry (Weinheim an der Bergstrasse, Germany)·2025

Related Experiment Video

Updated: Nov 29, 2025

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
09:09

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

Published on: February 5, 2020

7.4K

A Novel Thermocell System Using Proton Solvation Entropy.

Takashi Kobayashi1, Teppei Yamada2, Makoto Tadokoro3

  • 1Division of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|November 18, 2020
PubMed
Summary

Proton-coupled electron transfer reactions in thermocells significantly boost the Seebeck coefficient. This study highlights how releasing protons during redox reactions enhances thermoelectric conversion efficiency.

Keywords:
electron transferthermocellthermoelectric conversion

More Related Videos

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

2.0K
Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
07:18

Experimental System of Solar Adsorption Refrigeration with Concentrated Collector

Published on: October 18, 2017

14.9K

Related Experiment Videos

Last Updated: Nov 29, 2025

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation
09:09

Asymmetric Thermoelectrochemical Cell for Harvesting Low-grade Heat under Isothermal Operation

Published on: February 5, 2020

7.4K
Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials
09:23

Author Spotlight: Advancing Energy Solutions Using Nanocomposites as Processed Thermoelectric Materials

Published on: May 17, 2024

2.0K
Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
07:18

Experimental System of Solar Adsorption Refrigeration with Concentrated Collector

Published on: October 18, 2017

14.9K

Area of Science:

  • Electrochemistry
  • Materials Science
  • Thermoelectric Energy Conversion

Background:

  • The Seebeck coefficient (Se) is a key parameter for thermoelectric materials, determining their efficiency in converting heat to electricity.
  • Proton-coupled electron transfer (PCET) reactions involve the transfer of both protons and electrons, offering unique thermodynamic properties.
  • Enhancing Se in thermocells is crucial for developing efficient thermoelectric devices.

Purpose of the Study:

  • To investigate the impact of entropy changes in PCET reactions on the Seebeck coefficient of thermocells.
  • To explore the relationship between the number of dissociating protons and the magnitude of the redox reaction entropy (ΔSrc).
  • To demonstrate the potential of PCET reactions for efficient thermoelectric energy conversion.

Main Methods:

  • Utilized a redox pair of [Ru(Hx im)6 ]2+/3+ (Him=imidazole, x=0≈1) in thermocell experiments.
  • Employed temperature-dependent square wave voltammetry to accurately measure the Seebeck coefficient (Se).
  • Analyzed the correlation between Se and the redox reaction entropy (ΔSrc).

Main Results:

  • Observed a significantly enhanced Seebeck coefficient (Se) of -3.7 mV K-1 due to PCET reactions.
  • Demonstrated that Se is directly proportional to the redox reaction entropy (ΔSrc).
  • Found that ΔSrc increases with a greater number of dissociating protons during the redox reaction.

Conclusions:

  • PCET reactions offer a promising strategy for significantly improving the Seebeck coefficient in thermocells.
  • The number of protons released in PCET reactions is a critical factor in enhancing thermoelectric performance.
  • This work underscores the utility of PCET for advancing efficient thermoelectric energy conversion technologies.