Results 11 to 20 of about 113 (96)

Quasireversible cyclic voltammetry of a surface confined redox system: a mathematical treatment

Electrochemistry Communications, 2005
By removing complications caused by transport, the surface confinement of substrate and product members of a redox pair simplifies the relationships governing transient electrode reactions, often permitting a mathematical solution even when the voltammetry is kinetically controlled.
Jan C Myland, Keith B Oldham
exaly   +2 more sources

Homotopy analysis method for discrete quasi-reversibility mollification method of nonhomogeneous backward heat conduction problem

Nonlinear Engineering, 2023
In this article, the inverse time problem is investigated. Regarding the ill-posed linear problem, utilize the quasi-reversibility method first. This problem has been regularized and after that provides an iterative regularizing strategy for noisy input ...
Rahimi Mostafa, Rostamy Davood
doaj   +1 more source

Solving the Helmholtz Equation Together with the Cauchy Boundary Conditions by a Modified Quasi-Reversibility Regularization Method

Journal of Mathematics, 2022
The Quasi-Reversibility Regularization Method (Q-RRM) provides stable approximate solution of the Cauchy problem of the Helmholtz equation in the Hilbert space by providing either additional information in the Laplace-type operator in the Helmholtz ...
Benedict Barnes, Isaac Addai, Francis Ohene Boateng, Ishmael Takyi   +3 more
doaj   +1 more source

Lorenz Bifurcation: Instabilities in Quasireversible Systems

Physical Review Letters, 1999
Summary: We describe the two generic instabilities which arise in quasireversible systems and show that their normal forms are the well-known real Lorenz equations and the Maxwell-Bloch equations. We present for the first time analytic predictions for the appearance of Lorenz chaos and we describe a simple mechanical system which experimentally ...
Clerc Gavilán, Marcel, Coullet, Pierre, Tirapegui Zurbano, Enrique   +2 more
openaire   +1 more source

A quasi-reversibility regularization method for a Cauchy problem of the modified Helmholtz-type equation

Boundary Value Problems, 2019
The Cauchy problem of the modified Helmholtz-type equation is severely ill-posed, i.e., the solution does not depend continuously on the given Cauchy data. Thus the regularization methods are required to recover the numerical stability. In this paper, we
Hong Yang, Yanqi Yang
doaj   +1 more source

Reversible and Quasireversible Electron Transfer under Conditions of Differential Square-Wave Voltammetry

The Journal of Physical Chemistry C, 2022
A theoretical analysis of reversible and quasireversible electrode reactions of a dissolved redox couple under conditions of the novel technique of differential square-wave voltammetry (DSWV) is presented. The technique is recently introduced as a hybrid form between differential pulse voltammetry (DPV) and square-wave voltammetry (SWV) as the two most
Dariusz Guziejewski, Leon Stojanov, Rubin Gulaboski, Valentin Mirceski   +3 more
openaire   +2 more sources

Boron‐Difluoride Curcuminoid Dendrimers as Organic Near‐Infrared Photothermal Materials

ChemPhotoChem, Volume 10, Issue 5, May 2026.
Dendritic boron‐difluoride curcuminoids are presented that show near‐infrared emission and high rates of nonradiative decay. Water‐dispersible nanoparticles containing these materials were prepared that show near‐infrared emission and photothermal properties, with photothermal conversion efficiencies of 58%–66%. Organic molecules with absorption in the
Angelica Sevilla‐Pym, Lemin Li, Jana R. Caine, Anastasia Yu. Gitlina, Zachary M. Hudson   +4 more
wiley   +1 more source

Metal Organic Framework‐Modified Carbon Fiber Microelectrodes for Enhanced Neurochemical Detection

ChemElectroChem, Volume 13, Issue 8, 15 April 2026.
In this work, we modified carbon fiber microelectrodes (CFMEs) with the iron‐based metal organic framework MIL‐88B(Fe) and examined their performance using fast scan cyclic voltammetry (FSCV). The modification enhanced the dopamine signal at low concentrations and enabled consistent nanomolar detection, while maintaining clear peak separation in ...
Teflah Alshammari, Daniel Coughlin, Nadrah Aldaeefi, Nadiah Alyamni, Alexander G. Zestos   +4 more
wiley   +1 more source

A Sustainable and Low‐Cost Zn‐Lignosulfonate Redox Flow Battery

Batteries &Supercaps, Volume 9, Issue 4, April 2026.
A cost‐effective Zn/lignosulfonate (NaLS) hybrid flow battery using 20 kDa NaLS delivers 3.52 Ah L−1 at 30 mM, with an average discharge voltage of 1.01 V, outperforming smaller NaLS. This sustainable design leverages industrial and bio‐based lignosulfonates, cheaper size exclusion membrane, and abundant Zn for ecofriendly, scalable energy storage ...
Athul Seshadri Ramanujam, Paula Navalpotro, Nagaraj Patil, Rebeca Marcilla   +3 more
wiley   +1 more source

Redox‐Dependent Luminescence in a Pentavalent Uranyl Complex

ChemistryEurope, Volume 4, Issue 4, April 2026.
Redox‐dependent luminescence in a molecular pentavalent uranyl complex supported by a pyridine dipyrrolide pincer ligand is presented. Electrochemical and chemical reduction of the uranyl(VI) species provides a stable uranyl(V) complex that emits blue light from a high‐energy excited state. The anti‐Kasha emission is credited to the presence of “nested”
Leyla R. Valerio, Asmita Sen, William W. Brennessel, Carsten Milsmann, Jochen Autschbach, Ellen M. Matson   +5 more
wiley   +1 more source