Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Q-model of electrode reactions: altering force constants of intramolecular vibrations

Journal Article · · Physical Chemistry Chemical Physics. PCCP
DOI:https://doi.org/10.1039/c8cp03759k· OSTI ID:1480972
 [1];  [2]
  1. Arizona State Univ., Tempe, AZ (United States). Dept. of Physics and School of Molecular Sciences
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Chemistry
A theory of redox reactions involving electron transfer between a metal electrode and a molecule in solution is formulated in terms of two types of nuclear coordinates of the thermal bath: electrostatic polarization of the medium and local low-frequency vibrations. The polarization fluctuations follow Gaussian statistics. In contrast, the vibrational coordinate is allowed to change its force constant between two oxidation states of the reactant, which is projected onto non-Gaussian fluctuations of the reactant's electronic states. A closed-form analytical theory for the electrode redox reactions is formulated in terms of three reorganization energies: the reorganization energy for the electrostatic polarization of the medium and two internal (vibrational) reorganization energies for the reduced and oxidized states of the reactant. In conclusion, the theory predicts asymmetry between the cathodic and anodic branches of the electrode current driven by the corresponding difference in the vibrational force constants.
Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; SC0015641
OSTI ID:
1480972
Alternate ID(s):
OSTI ID: 1470573
Report Number(s):
BNL--209340-2018-JAAM
Journal Information:
Physical Chemistry Chemical Physics. PCCP, Journal Name: Physical Chemistry Chemical Physics. PCCP Journal Issue: 37 Vol. 20; ISSN 1463-9076; ISSN PPCPFQ
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Interfacial Electrochemistry book January 2010
Homogeneous and heterogeneous optical and thermal electron transfer journal May 1968
Outer-sphere electron transfer in polar solvents journal July 1980
Electron transfers in chemistry and biology journal August 1985
The potential-dependence and the upper limits of electrochemical rate constants journal November 1968
Asymmetry of inner-sphere reorganization energy for heterogeneous electron transfer journal June 1998
Electron transfer in retrospect and prospect 1: Adiabatic electrode processes journal July 1999
Non-Gaussian statistics of binding/unbinding events and the energetics of electron transfer reactions journal July 2008
An experimental comparison of the Marcus–Hush and Butler–Volmer descriptions of electrode kinetics applied to cyclic voltammetry. The one electron reductions of europium (III) and 2-methyl-2-nitropropane studied at a mercury microhemisphere electrode journal November 2011
Life of the Tafel equation: Current understanding and prospects for the second century journal March 2007
On the evaluation and analysis of the Marcus–Hush–Chidsey integral journal May 2011
Asymmetric Marcus theory: Application to electrode kinetics journal February 2012
On the evaluation of the Marcus–Hush–Chidsey integral journal April 2012
Simple formula for asymmetric Marcus–Hush kinetics journal July 2015
Application of Asymmetric Marcus–Hush Theory to Voltammetry in Room-Temperature Ionic Liquids journal March 2015
Elucidating the Oxygen Reduction Reaction Kinetics and the Origins of the Anomalous Tafel Behavior at the Lithium–Oxygen Cell Cathode journal February 2017
Second-order nonlinearity in poled-polymer systems journal January 1994
Dynamics of reactions in polar solvents. Semiclassical trajectory studies of electron-transfer and proton-transfer reactions journal June 1982
Relation between the electron-transfer rate and the free energy change of reaction journal October 1989
The driving-force dependence of electrochemical rate parameters: origins of anodic-cathodic asymmetries for metal-aquo redox couples journal December 1984
Intramolecular long-distance electron transfer in radical anions. The effects of free energy and solvent on the reaction rates journal May 1984
Large Electron Transfer Rate Effects from the Duschinsky Mixing of Vibrations journal June 2001
Proton-Coupled Electron Transfer of an Osmium Aquo Complex on a Self-Assembled Monolayer on Gold journal February 2004
Electrostatic Potentials and Free Energies of Solvation of Polar and Charged Molecules journal April 1997
Classical and Quantum Simulation of Electron Transfer Through a Polypeptide journal August 1999
Nonadiabatic Electron Transfer at Metal Surfaces journal March 2000
Activating lattice oxygen redox reactions in metal oxides to catalyse oxygen evolution journal January 2017
Charge transfer kinetics at the solid–solid interface in porous electrodes journal April 2014
Interfacial bridge-mediated electron transfer: mechanistic analysis based on electrochemical kinetics and theoretical modelling journal January 2007
A density functional theory based study of the electron transfer reaction at the cathode–electrolyte interface in lithium–air batteries journal January 2015
Simple schemes in chemical electron transfer formalism beyond single-mode quadratic forms: environmental vibrational dispersion and anharmonic nuclear motion journal January 1999
Asymmetric Marcus–Hush theory for voltammetry journal January 2013
Modeling the free energy surfaces of electron transfer in condensed phases journal January 2000
Solvent reorganization energy of electron-transfer reactions in polar solvents journal April 2004
On the Theory of Electron‐Transfer Reactions. VI. Unified Treatment for Homogeneous and Electrode Reactions journal July 1965
The Franck‐Condon Principle and Its Application to Crystals journal November 1952
Electrostatic Free Energy and Other Properties of States Having Nonequilibrium Polarization. I journal May 1956
Standard electrode potential, Tafel equation, and the solvation thermodynamics journal June 2009
Molecular model for aqueous ferrous–ferric electron transfer journal September 1988
Microscopic formulation of Marcus’ theory of electron transfer journal September 1995
Free energy functionals for polarization fluctuations: Pekar factor revisited journal February 2017
Electrode redox reactions with polarizable molecules journal April 2018
Free Energy and Temperature Dependence of Electron Transfer at the Metal-Electrolyte Interface journal February 1991
Application of the Method of Generating Function to Radiative and Non-Radiative Transitions of a Trapped Electron in a Crystal journal February 1955
A Critical Review of Li∕Air Batteries journal January 2012

Similar Records

Electrode redox reactions with polarizable molecules
Journal Article · Mon Apr 16 20:00:00 EDT 2018 · Journal of Chemical Physics · OSTI ID:1540171

Electrode Reactions in Slowly Relaxing Media
Journal Article · Thu Nov 16 19:00:00 EST 2017 · Journal of Chemical Physics · OSTI ID:1407474