Little is known about the importance and/or mechanisms of biological mineral oxidation in sediments, partially due to the difficulties associated with culturing mineral-oxidizing microbes. We demonstrate that electrochemical enrichment is a feasible approach for isolation of microbes capable of gaining electrons from insoluble minerals. To this end we constructed sediment microcosms and incubat...

Electrochemistry is developed as a new chemical imaging modality for microfluidics. The technique is based on multipoint voltammetry using an embedded 20 × 10 miniature electrode array implemented on a customized printed circuit board. Electrode durability was enhanced by chemical modification of the electrode surfaces, which enabled continuous, stable use for over 2 months. A system-level appr...

In this paper, we described a glucose biosensor based on the co-electrodeposition of a poly(vinylimidazole) complex of [Os(bpy)2Cl](+/2+) (PVI-Os) and glucose oxidase (GOX) on a gold electrode surface. The one-step co-electrodeposition method provided a better control on the sensor construction, especially when it was applied to microsensor construction. The modified electrode exhibited the cla...

Thermoelectrochemical cells (TECs) have the potential to offer a continuous renewable electricity supply from a variety of thermal energy sources. Because of the thermal gradient, the device characteristics are a complex function of temperature dependent electrolyte transport properties, electrode electro-catalytic properties and the Seebeck coefficient of the redox couple. Understanding the in...

Anion templation is used to assemble novel redox-active bis-ferrocene functionalised rotaxane self-assembled monolayers (SAMs) on to gold electrode surfaces; after template removal, the unique SAM rotaxane binding domain is capable of selectively sensing chloride ions electrochemically.

A transient modelling framework for a vanadium redox-flow battery (RFB) is developed and experiments covering a range of vanadiumconcentration and electrolyte flow rate are conducted. The two-dimensional model is based on a comprehensive description of mass, charge and momentum transport and conservation, and is combined with a global kinetic model for reactions involving vanadium species. The ...

The intermittent nature of the sunlight and its increasing contribution to electricity generation is fostering the energy storage research. Direct solar charging of an auspicious type of redox flow battery could make solar energy directly and efficiently dispatchable. The first solar aqueous alkaline redox flow battery using low cost and environmentally safe materials is demonstrated. The elect...

Crystalline (PMePh(3))(2)[Cd(2)(dhbq)(3)], (dhbq(2-) = deprotonated 2,5-dihydroxybenzoquinone, H(2)dhbq), attached to electrode surfaces, survives repeated cycles of reduction followed by re-oxidation when placed in contact with aqueous electrolyte media. The results afford encouragement that a range of coordination networks containing redox active connecting ligands and/or redox active metal c...