Methanol oxidation at single platinum nanoparticles by Chang, X, Batchelor-McAuley, C, Compton, RG

“…Upon impacting a potentiostated electrode and after ≤ 1 ms a steady-state reaction limited catalytic current is induced to occur at the platinum nanoparticle (nominal diameter 50 nm); the magnitude of the current is close to that seen for both larger arrays of nanoparticles and polycrystalline ‘bulk’ material suggesting that single entity activity is preserved in ensembles of nanoparticles. …”

Hydrogen peroxide reduction on single platinum nanoparticles by Chang, X, Batchelor-McAuley, C, Compton, RG

“…We reveal that at the single nanoparticle scale the direct platinum catalysed reduction of hydrogen peroxide is found – even at high overpotentials – not to be controlled by the rate mass-transport of the reagents to the interface but by a surface limited process. …”

Role of nanomorphology and interfacial structure of platinum nanoparticles in catalyzing the hydrogen oxidation reaction by Jiao, X, Batchelor-McAuley, C, Lin, C, Kätelhön, E, Tanner, E, Young, N, Compton, R

“…This work studies the hydrogen oxidation reaction using both single mesoporous platinum nanoparticles (rnp = 23.1 ± 2.1 nm) and low density random arrays of material. …”

Hydrogen oxidation reaction on platinum nanoparticles: understanding the kinetics of electrocatalytic reactions via “nano-impacts” by Jiao, X, Lin, C, Young, N, Batchelor-McAuley, C, Compton, R

“…<p>The kinetics of the hydrogen oxidation reaction (HOR) on platinum nanoparticles (PtNPs) is explored. The steady-state current for HOR on individual PtNPs is measured via the nanoimpact approach. …”

Voltammetry in sheep’s blood: membrane-free amperometric measurement of O2 concentration by Li, D, Batchelor-McAuley, C, Compton, R

“…This method was based on a bare platinum microdisc electrode coupled with the use of chronoamperometry. …”

Bipolar nanoimpact transients: Controlling the redox potential of nanoparticles in solution by Markham, J, Young, NP, Batchelor-McAuley, C, Compton, RG

“…In this work it is demonstrated how this nanoparticle “redox” potential determines—in the case of platinum—the surface functionality of the nanomaterial. …”

Carbon dioxide reduction in room temperature ionic liquids: the effect of the choice of electrode material, cation, and anion by Tanner, E, Batchelor-McAuley, C, Compton, R

“…No appreciable reduction is observable on either platinum or glassy carbon. Moreover, on silver the overpotential required for reduction is reduced by ca. 1.5 V compared with gold. …”

The Subtleties of the Reversible Hydrogen Evolution Reaction Arising from the Nonunity Stoichiometry by Jiao, X, Batchelor-McAuley, C, Kaetelhoen, E, Ellison, J, Tschulik, K, Compton, R

“…This Article provides a joint analytical, numerical, and experimental investigation into the reversible hydrogen evolution reaction at a platinum microelectrode. Literature obscurities and nuances are highlighted and corrected, allowing the presentation of an holistic overview of the electrochemical reaction at the reversible limit. …”

Handheld electrochemical device for the determination of the strength of garlic by Ngamchuea, K, Hurst, P, Batchelor-McAuley, C, Compton, R

“…Convenient and disposable platinum screen-printed electrodes are employed. All measurements and data analyses are performed within the device. …”

Electrochemical bromination of organosulfur containing species for the determination of the strength of garlic (A. sativum) by Hall, EM, Tschulik, K, Batchelor-McAuley, C, Compton, RG

“…Through the in situ formation of bromine at a platinum electrode the propyl disulfide can be readily detected at concentrations as low as 12.5 μM. …”

Substrate mediated dissolution of redox active nanoparticles; electron transfer over long distances by Xie, R-C, Batchelor-McAuley, C, Yang, M, Compton, RG

“…The dissolution kinetics of the surface-supported metal nanoparticles is compared on four substrate materials (i.e., glass, indium titanium oxide, glassy carbon and platinum) with different electrical conductivity. The three conductive substrates catalyse the redox-driven dissolution of Ag nanoparticles with the electrons transferred from the nanoparticles, via the macroscopic electrode to the dioxygen electron acceptor.…”

Towards direct electroanalysis in seawater: understanding the role of the buffer capacity of seawater in proton-coupled electron transfer reactions by Pindar, R, Batchelor-McAuley, C, Yang, M, Compton, R

“…Electrochemically and chemically reversible voltammetry is seen in aqueous 0.7 M NaCl at platinum macro-electrodes in the absence of a buffer whilst the presence of a chemically stable buffer systems, such as phosphate or formate, leads either to a cathodic shift in the oxidation potential for high buffer concentrations or to a split wave for concentrations approximately a factor of two less than the dissolved H2. …”