Redox mediators accelerate electrochemically-driven solubility cycling of molecular transition metal complexes.

Chemical Science
Katherine J LeeJillian L Dempsey

Abstract

The solubility of molecular transition metal complexes can vary widely across different redox states, leaving these compounds vulnerable to electron transfer-initiated heterogenization processes in which oxidation or reduction of the soluble form of the redox couple generates insoluble molecular deposits. These insoluble species can precipitate as suspended nanoparticles in solution or, under electrochemical conditions, as an electrode-adsorbed material. While this electrochemically-driven solubility cycling is technically reversible, the reverse electron transfer to regenerate the soluble redox couple state is a practical challenge if sluggish electron transfer kinetics result in a loss of electronic communication between the molecular deposits and the electrode. In this work, we present an example of this electrochemically-driven solubility cycling, report a novel strategy for catalytically enhancing the oxidation of the insoluble material using homogeneous redox mediators, and develop the theoretical framework for analysing and digitally simulating the action of a homogeneous catalyst on a heterogeneous substrate via cyclic voltammetry. First, a mix of electrochemical and spectroscopic methods are used to characterize an exa...Continue Reading

References

Mar 1, 1988·European Journal of Biochemistry·J E Frew, H A Hill
Jan 5, 2006·Journal of the American Chemical Society·Aaron D WilsonDaniel L DuBois
Jul 16, 2008·Chemical Reviews·Jean-Michel Savéant
Dec 25, 2012·Physical Chemistry Chemical Physics : PCCP·Qizhao HuangQing Wang
Feb 22, 2014·Inorganic Chemistry·Daniel L DuBois
Sep 24, 2014·Inorganic Chemistry·Eric S RountreeJillian L Dempsey
Dec 5, 2014·Chemical Communications : Chem Comm·Daniel J MartinJillian L Dempsey
Feb 11, 2015·The Analyst·Enno Kätelhön, Richard G Compton
Mar 17, 2016·Journal of the American Chemical Society·Cyrille CostentinJean-Michel Savéant
Mar 22, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Daniel J MartinJillian L Dempsey
May 6, 2017·Chemical Communications : Chem Comm·Courtney A DownesSmaranda C Marinescu
Oct 19, 2017·Chemical Society Reviews·Yu DingGuihua Yu
Feb 16, 2019·Chemical Reviews·Kristian E DalleErwin Reisner
Feb 14, 2020·Chemical Reviews·David G KwabiMichael J Aziz

❮ Previous
Next ❯

Methods Mentioned

BETA
delamination

Software Mentioned

MATLAB

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.