James. J. Walsh
Research Subjects
James. J. Walsh has a total of 71 co-authors. Here are the top co-authors by number of shared publications:
- Alexander J. Cowan
Stephenson Institute for Renewable Energy and Department of Chemistry University of Liverpool Liverpool UK
12 shared publications - Robert J. Forster
Dublin City University
10 shared publications - Tia E. Keyes
School of Chemical Sciences and National Centre for Sensor Research, Dublin City University, Dublin 9, Ireland
8 shared publications - Gaia Neri
Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool, L69 7ZF, UK
5 shared publications - Alan Maxwell Bond
School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
4 shared publications Charlotte L. Smith
Department of Chemistry, Stephenson Institute for Renewable Energy, The University of Liverpool, Liverpool L69 7ZF, United Kingdom
4 shared publications
Latest Publications
- Open Access
- 17 November 2022
- Published by American Chemical Society (ACS) in ACS Omega
- Vol. 7 (48) , 43381-43389
Organic–Inorganic Hybrid Films of the Sulfate Dawson Polyoxometalate, [S2W18O62]4–, and Polypyrrole for Iodate Electrocatalysis
The Dawson-type sulfate polyoxometalate (POM) [S2W18O62]4- has successfully been entrapped in polypyrrole (PPy) films on glassy carbon electrode (GCE) surfaces through pyrrole electropolymerization. Films of varying POM loadings (i.e., thickness) were grown by chronocoulometry. Film-coated electrodes were then characterized using voltammetry, revealing POM surface coverages ranging from 1.9 to 11.7 × 10-9 mol·cm-2, and were stable over 100 redox cycles. Typical film morphology and composition were revealed to be porous using atomic force microscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy, and the effects of this porosity on POM redox activity were probed using AC impedance. The hybrid organic-inorganic films exhibited a good electrocatalytic response toward the reduction of iodate with a sensitivity of 0.769 μA·cm-2·μM-1.
- 17 November 2022
- Published by American Chemical Society (ACS) in ACS Omega
- Vol. 7 (48) , 43381-43389
Open AccessOrganic–Inorganic Hybrid Films of the Sulfate Dawson Polyoxometalate, [S2W18O62]4–, and Polypyrrole for Iodate Electrocatalysis
The Dawson-type sulfate polyoxometalate (POM) [S2W18O62]4- has successfully been entrapped in polypyrrole (PPy) films on glassy carbon electrode (GCE) surfaces through pyrrole electropolymerization. Films of varying POM loadings (i.e., thickness) were grown by chronocoulometry. Film-coated electrodes were then characterized using voltammetry, revealing POM surface coverages ranging from 1.9 to 11.7 × 10-9 mol·cm-2, and were stable over 100 redox cycles. Typical film morphology and composition were revealed to be porous using atomic force microscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy, and the effects of this porosity on POM redox activity were probed using AC impedance. The hybrid organic-inorganic films exhibited a good electrocatalytic response toward the reduction of iodate with a sensitivity of 0.769 μA·cm-2·μM-1.
- 21 May 2020
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 22 (22) , 12766-12771
Investigating the effects of pyridine and poly(4-vinylpyridine) on CO 2 reduction electrocatalysis at gold electrodes using in situ surface-enhanced Raman spectroelectrochemistry
CO 2 reduction (CO 2 RR) at metal electrodes is altered in the presence of pyridine and related species.
- 21 May 2020
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 22 (22) , 12766-12771
Investigating the effects of pyridine and poly(4-vinylpyridine) on CO 2 reduction electrocatalysis at gold electrodes using in situ surface-enhanced Raman spectroelectrochemistry
CO 2 reduction (CO 2 RR) at metal electrodes is altered in the presence of pyridine and related species.
- Open Access
- 30 October 2018
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 42 (23) , 19020-19025
Amino acid appended perylene bisimides: self-assembly, immobilization on nanocrystalline TiO2, and electrochromic properties
Titanium dioxide (TiO2) nanoparticle films have been used as a conducting support for the immobilisation of alanine-appended perylene bisimides (PBI-A) via dip-coating and carboxylate chemisorption.
- 30 October 2018
- Published by Royal Society of Chemistry (RSC) in New Journal of Chemistry
- Vol. 42 (23) , 19020-19025
Open AccessAmino acid appended perylene bisimides: self-assembly, immobilization on nanocrystalline TiO2, and electrochromic properties
Titanium dioxide (TiO2) nanoparticle films have been used as a conducting support for the immobilisation of alanine-appended perylene bisimides (PBI-A) via dip-coating and carboxylate chemisorption.
- 29 October 2018
- Published by Springer Nature in Nature Catalysis
- Vol. 1 (12) , 952-959
Detection of catalytic intermediates at an electrode surface during carbon dioxide reduction by an earth-abundant catalyst
- 29 October 2018
- Published by Springer Nature in Nature Catalysis
- Vol. 1 (12) , 952-959
Detection of catalytic intermediates at an electrode surface during carbon dioxide reduction by an earth-abundant catalyst
- 1 October 2018
- Published by Elsevier in Electrochimica Acta
- Vol. 287, 78-86
Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide
- 1 October 2018
- Published by Elsevier in Electrochimica Acta
- Vol. 287, 78-86
Polypyrrole entrapped 18-molybdodisulphate anion for the detection of hydrogen peroxide
- Open Access
- 18 July 2018
- Published by American Chemical Society (ACS) in Organometallics
- Vol. 38 (6) , 1224-1229
Water-Soluble Manganese Complex for Selective Electrocatalytic CO2 Reduction to CO
Relatively few solution electrocatalysts for CO2 reduction in aqueous solutions are reported. However, to be sustainable, electrocatalytic CO2 reduction is likely to be coupled to water oxidation in a complete device. Here we report a water-soluble Mn polypyridyl complex for the electrocatalytic reduction of CO2 to CO. This complex shows activity across a broad pH range and an excellent selectivity at pH 9 (3.8:1, CO/H2). Cyclic voltammetry indicates activity across a range of different electrode materials (boron-doped diamond, glassy carbon, and Hg/Au amalgams).
- 18 July 2018
- Published by American Chemical Society (ACS) in Organometallics
- Vol. 38 (6) , 1224-1229
Open AccessWater-Soluble Manganese Complex for Selective Electrocatalytic CO2 Reduction to CO
Relatively few solution electrocatalysts for CO2 reduction in aqueous solutions are reported. However, to be sustainable, electrocatalytic CO2 reduction is likely to be coupled to water oxidation in a complete device. Here we report a water-soluble Mn polypyridyl complex for the electrocatalytic reduction of CO2 to CO. This complex shows activity across a broad pH range and an excellent selectivity at pH 9 (3.8:1, CO/H2). Cyclic voltammetry indicates activity across a range of different electrode materials (boron-doped diamond, glassy carbon, and Hg/Au amalgams).
- Open Access
- 1 April 2018
- Published by Elsevier in Journal of Electroanalytical Chemistry
- Vol. 815, 86-89
Facile assembly of polyoxometalate-polyelectrolyte films on nano-MO2 (M = Sn, Ti) for optical applications
- 1 April 2018
- Published by Elsevier in Journal of Electroanalytical Chemistry
- Vol. 815, 86-89
Open AccessFacile assembly of polyoxometalate-polyelectrolyte films on nano-MO2 (M = Sn, Ti) for optical applications
- Open Access
- 19 February 2018
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 20 (10) , 6811-6816
Directing the mechanism of CO 2 reduction by a Mn catalyst through surface immobilization
Immobilization of a Mn polypyridyl CO 2 reduction electrocatalyst on nanocrystalline TiO 2 electrodes yields an active heterogeneous system and also significantly triggers a change in voltammetric and catalytic behaviour, relative to in solution.
- 19 February 2018
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 20 (10) , 6811-6816
Open AccessDirecting the mechanism of CO 2 reduction by a Mn catalyst through surface immobilization
Immobilization of a Mn polypyridyl CO 2 reduction electrocatalyst on nanocrystalline TiO 2 electrodes yields an active heterogeneous system and also significantly triggers a change in voltammetric and catalytic behaviour, relative to in solution.
- Open Access
- 29 March 2017
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry A
- Vol. 5 (16) , 7555-7563
pH dependent photocatalytic hydrogen evolution by self-assembled perylene bisimides
We show the importance of the self-assembly of a perylene bisimide on its photocatalytic activity.
- 29 March 2017
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry A
- Vol. 5 (16) , 7555-7563
Open AccesspH dependent photocatalytic hydrogen evolution by self-assembled perylene bisimides
We show the importance of the self-assembly of a perylene bisimide on its photocatalytic activity.