It is now generally agreed that in the process of aerobic oxidative phosphorylations there is no direct interaction of orthophosphate with the various oxidizable substrates which provide the energy necessary for the phosphorylation. Phosphorylation takes place during the passage of electrons from substrate to molecular oxygen. Since there are three main oxidationreduction systems of varied pote...

The anaerobic bacterium Clostdium kluyveti can catalyze the conversion of ethanol and acetate to butyrate and caproate (6). Tracer studies with growing cultures of this organism (2) have shown that this conversion involves an oxidation of ethanol to a a-carbon compound (“active” acetate) that is in approximate equilibrium with acetate. This activated a-carbon substance then condenses with ordin...

The ring size effect of macrocyclic TMC ligands in nonheme iron(IV)-oxo complexes has been examined in hydrogen atom transfer (HAT) and oxygen atom transfer (OAT) reactions; an iron(IV)-oxo complex bearing a smaller TMC ligand is more reactive in both HAT and OAT reactions, resulting from its high Fe(IV/III) redox potential.

An experimental method for measurement of local redox potential within multilayer electrodes was developed and applied to all-vanadium redox flow batteries (VRFBs). Through-plane measurement at the positive side reveals several important phenomena including potential distribution, concentration distribution of active species and the predominant reaction location within the porous carbon electro...

Invited for this month's cover picture is the group of Professor Toribio F. Otero at the Centre for Electrochemistry, Intelligent Materials and Devices at the Polytechnic University of Cartagena (Spain). The cover picture shows an electrochemical cell as well as three representative cyclic voltammetric responses, displaying the electrolyte potential window, the monomer oxidation-polymerization ...