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Structure and chemical composition of the Mg electrode during cycling in a simple glyme electrolyte (2024)
Journal Article
Dimogiannis, K., Sankowski, A., Holc, C., Parmenter, C. D., Newton, G. N., Walsh, D. A., …Johnson, L. R. (2024). Structure and chemical composition of the Mg electrode during cycling in a simple glyme electrolyte. Energy Storage Materials, 67, Article 103280. https://doi.org/10.1016/j.ensm.2024.103280

The volumetric energy density of magnesium exceeds that of lithium, making magnesium batteries particularly promising for next-generation energy storage. However, electrochemical cycling of magnesium electrodes in common battery electrolytes is coulo... Read More about Structure and chemical composition of the Mg electrode during cycling in a simple glyme electrolyte.

A lithium-air battery and gas handling system demonstrator (2023)
Journal Article
Jordan, J. W., Vailaya, G., Holc, C., Jenkins, M., McNulty, R. C., Puscalau, C., …Johnson, L. R. (2024). A lithium-air battery and gas handling system demonstrator. Faraday Discussions, 248, 381-391. https://doi.org/10.1039/d3fd00137g

The lithium-air (Li-air) battery offers one of the highest practical specific energy densities of any battery system at >400 W h kgsystem−1. The practical cell is expected to operate in air, which is flowed into the positive porous electrode where it... Read More about A lithium-air battery and gas handling system demonstrator.

Voltammetric Evidence of Proton Transport through the Sidewalls of Single-Walled Carbon Nanotubes (2023)
Journal Article
Jordan, J. W., Mortiboy, B., Khlobystov, A. N., Johnson, L. R., Newton, G. N., & Walsh, D. A. (2023). Voltammetric Evidence of Proton Transport through the Sidewalls of Single-Walled Carbon Nanotubes. Journal of the American Chemical Society, 145(16), 9052–9058. https://doi.org/10.1021/jacs.3c00554

Understanding ion transport in solid materials is crucial in the design of electrochemical devices. Of particular interest in recent years is the study of ion transport across 2-dimensional, atomically thin crystals. In this contribution, we describe... Read More about Voltammetric Evidence of Proton Transport through the Sidewalls of Single-Walled Carbon Nanotubes.

Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response (2022)
Journal Article
Wadge, M. D., Bird, M. A., Sankowski, A., Constantin, H., Fay, M. W., Cooper, T. P., …Grant, D. M. (2023). Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response. Advanced Materials Interfaces, 10(5), Article 2201523. https://doi.org/10.1002/admi.202201523

This study describes the chemical conversion and heat treatment of Ti6Al4V microspheres (Ti6_MS), and the resulting effects on their electrocatalytic properties. The wet-chemical conversion (5.0m NaOH, 60°C, 24h; Sample label: Ti6_TC) converts the to... Read More about Nanostructured, Alkaline Titanate‐Converted, and Heat‐Treated Ti6Al4V Microspheres via Wet‐Chemical Alkaline Modification and their ORR Electrocatalytic Response.

Electrochemical Oscillatory Baffled Reactors Fabricated with Additive Manufacturing for Efficient Continuous-Flow Oxidations (2022)
Journal Article
Alvarez, E., Romero-Fernandez, M., Iglesias, D., Martinez-Cuenca, R., Okafor, O., Delorme, A., …Sans, V. (2022). Electrochemical Oscillatory Baffled Reactors Fabricated with Additive Manufacturing for Efficient Continuous-Flow Oxidations. ACS Sustainable Chemistry and Engineering, 10(7), 2388-2396. https://doi.org/10.1021/acssuschemeng.1c06799

Electrochemical continuous-flow reactors offer a great opportunity for enhanced and sustainable chemical syntheses. Here, we present a novel application of electrochemical continuous-flow oscillatory baffled reactors (ECOBRs) that combines advanced m... Read More about Electrochemical Oscillatory Baffled Reactors Fabricated with Additive Manufacturing for Efficient Continuous-Flow Oxidations.

Organic–Inorganic Hybrid Polyoxotungstates As Configurable Charge Carriers for High Energy Redox Flow Batteries (2021)
Journal Article
Peake, C. L., Kibler, A. J., Newton, G. N., & Walsh, D. A. (2021). Organic–Inorganic Hybrid Polyoxotungstates As Configurable Charge Carriers for High Energy Redox Flow Batteries. ACS Applied Energy Materials, 4(9), 8765-8773. https://doi.org/10.1021/acsaem.1c00800

We describe the synthesis and electrochemical analysis of the phenyl siloxane-hybridized phosphotungstate Keggin-type polyoxometalate (POM) TBA3[PW11O39(SiC6H5)2O] (TBA3W11SiPh) and its performance as the charge carrier in nonaqueous redox flow batte... Read More about Organic–Inorganic Hybrid Polyoxotungstates As Configurable Charge Carriers for High Energy Redox Flow Batteries.

Electrochemistry of redox-active molecules confined within narrow carbon nanotubes (2021)
Journal Article
Jordan, J. W., Townsend, W. J. V., Johnson, L. R., Walsh, D. A., Newton, G. N., & Khlobystov, A. N. (2021). Electrochemistry of redox-active molecules confined within narrow carbon nanotubes. Chemical Society Reviews, 50(19), 10895-10916. https://doi.org/10.1039/d1cs00478f

Confinement of molecules within nanocontainers can be a powerful tool for controlling the states of guest-molecules, tuning properties of host-nanocontainers and triggering the emergence of synergistic properties within the host–guest systems. Among... Read More about Electrochemistry of redox-active molecules confined within narrow carbon nanotubes.

2021 roadmap on lithium sulfur batteries (2021)
Journal Article
Robinson, J. B., Xi, K., Kumar, R. V., Ferrari, A. C., Au, H., Titirici, M.-M., …Shearing, P. R. (2021). 2021 roadmap on lithium sulfur batteries. Journal of Physics: Energy, 3(3), Article 031501. https://doi.org/10.1088/2515-7655/abdb9a

Batteries that extend performance beyond the intrinsic limits of Li-ion batteries are among the most important developments required to continue the revolution promised by electrochemical devices. Of these next-generation batteries, lithium sulfur (L... Read More about 2021 roadmap on lithium sulfur batteries.

Gel-Polymer Electrolytes Based on Poly(Ionic Liquid)/Ionic Liquid Networks (2020)
Journal Article
Sen, S., Goodwin, S. E., Barbará, P. V., Rance, G. A., Wales, D., Cameron, J. M., …Walsh, D. A. (2021). Gel-Polymer Electrolytes Based on Poly(Ionic Liquid)/Ionic Liquid Networks. ACS Applied Polymer Materials, 3(1), 200-208. https://doi.org/10.1021/acsapm.0c01042

The use of electrically charged, polymerized ionic liquids (polyILs) offers opportunities for the development of gel-polymer electrolytes (GPEs), but the rational design of such systems is in its infancy. In this work, we compare the properties of po... Read More about Gel-Polymer Electrolytes Based on Poly(Ionic Liquid)/Ionic Liquid Networks.

Functionalization of Carbon Surfaces Tunes the Redox Stability of Polyoxometalate@Carbon Electrodes (2020)
Journal Article
Mughal, N. S., Walsh, D. A., & Newton, G. N. (2020). Functionalization of Carbon Surfaces Tunes the Redox Stability of Polyoxometalate@Carbon Electrodes. ACS Applied Energy Materials, 3(12), 12308-12315. https://doi.org/10.1021/acsaem.0c02360

The use of redox-active polyoxometalates (POMs) offers unique opportunities for the development of advanced functional materials, but the use of such systems is often limited by their instability in operando. To enhance the functional stability of PO... Read More about Functionalization of Carbon Surfaces Tunes the Redox Stability of Polyoxometalate@Carbon Electrodes.

Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles (2020)
Journal Article
Martin, C., Kastner, K., Cameron, J. M., Hampson, E., Alves Fernandes, J., Gibson, E. K., …Newton, G. N. (2020). Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles. Angewandte Chemie International Edition, 59(34), 14331-14335. https://doi.org/10.1002/anie.202005629

We report the design and preparation of multifunctional hybrid nanomaterials through the stabilization of gold nanoparticles with thiol‐functionalised hybrid organic–inorganic polyoxometalates (POMs). The covalent attachment of the hybrid POM forms n... Read More about Redox‐Active Hybrid Polyoxometalate‐Stabilised Gold Nanoparticles.

Efficient Electrocatalytic CO2 Reduction Driven by Ionic Liquid Buffer‐Like Solutions (2019)
Journal Article
Goncalves, W. D. G., Zanatta, M., Simon, N. M., Rutzen, L. M., Walsh, D. A., & Dupont, J. (2019). Efficient Electrocatalytic CO2 Reduction Driven by Ionic Liquid Buffer‐Like Solutions. ChemSusChem, 12(18), 4170-4175. https://doi.org/10.1002/cssc.201901076

We show here that electrocatalysis of CO2 reduction in aqueous electrolytes containing the ionic liquid (IL) 1-n-butyl-2,3dimethylimidazolium acetate ([BMMIm][OAc]) and dimethyl sulfoxide (DMSO) proceeds at low overpotentials (−0.9 V vs. Ag/AgCl) at... Read More about Efficient Electrocatalytic CO2 Reduction Driven by Ionic Liquid Buffer‐Like Solutions.

The nature of proton shuttling in protic ionic liquid fuel cells (2019)
Journal Article
Smith, D. E., & Walsh, D. A. (2019). The nature of proton shuttling in protic ionic liquid fuel cells. Advanced Energy Materials, 9(24), Article 1900744. https://doi.org/10.1002/aenm.201900744

It has been proposed previously that protic ionic liquids (PILs) such as diethylmethylammonium triflate could be used as the electrolytes in nonhumidified, intermediate temperature H2 fuel cells, potentially offering the prospect of high conductivity... Read More about The nature of proton shuttling in protic ionic liquid fuel cells.

Valorization of lignin waste: high electrochemical capacitance of lignin-derived carbons in aqueous and ionic liquid electrolytes (2018)
Journal Article
Sangchoom, W., Walsh, D. A., & Mokaya, R. (2018). Valorization of lignin waste: high electrochemical capacitance of lignin-derived carbons in aqueous and ionic liquid electrolytes. Journal of Materials Chemistry A, 6(38), 18701-18711. https://doi.org/10.1039/c8ta07632d

This report describes the utilization of waste lignin-derived activated carbons (LACs) as high-energy/high-power electrode materials for electric double layer capacitors(EDLCs). The influence of carbon-pore structure on the capacitance of the LACs in... Read More about Valorization of lignin waste: high electrochemical capacitance of lignin-derived carbons in aqueous and ionic liquid electrolytes.

Conducting Polymer Nanocomposite-Based Supercapacitors (2016)
Book Chapter
Liew, S. Y., Walsh, D. A., & Chen, G. Z. (2016). Conducting Polymer Nanocomposite-Based Supercapacitors. In V. Kumar, S. Kalia, & H. C. Swart (Eds.), Conducting polymer hybrids (269-304). Springer International Publishing. https://doi.org/10.1007/978-3-319-46458-9_9

The use of nanocomposites of electronically-conducting polymers for supercapacitors has increased significantly over the past years, due to their high capacitances and abilities to withstand many charge-discharge cycles. We have recently been investi... Read More about Conducting Polymer Nanocomposite-Based Supercapacitors.

Extremely Stable Platinum-Amorphous Carbon Electrocatalyst within Hollow Graphitized Carbon Nanofibers for the Oxygen Reduction Reaction (2016)
Journal Article
Gimenez-Lopez, M. D. C., Kurtoglu, A., Walsh, D. A., & Khlobystov, A. N. (2016). Extremely Stable Platinum-Amorphous Carbon Electrocatalyst within Hollow Graphitized Carbon Nanofibers for the Oxygen Reduction Reaction. Advanced Materials, 28(41), 9103-9108. https://doi.org/10.1002/adma.201602485

Unprecedented electrochemical stabilization of platinum nanoparticles (PtNPs) is presented, upon insertion into shortened hollow graphitized carbon nanofibers (PtNP@S-GNF) toward the oxygen-reduction reaction for fuel-cell applications. In contrast t... Read More about Extremely Stable Platinum-Amorphous Carbon Electrocatalyst within Hollow Graphitized Carbon Nanofibers for the Oxygen Reduction Reaction.

Biomass-derived activated carbon with simultaneously enhanced CO2 uptake for both pre and post combustion capture applications (2015)
Journal Article
Coromina, H. M., Walsh, D. A., & Mokaya, R. (2015). Biomass-derived activated carbon with simultaneously enhanced CO2 uptake for both pre and post combustion capture applications. Journal of Materials Chemistry A, 4(1), https://doi.org/10.1039/C5TA09202G

We report on the synthesis and CO2 uptake capabilities of a series of activated carbons derived from biomass raw materials, Jujun grass and Camellia japonica. The carbons were prepared via hydrothermal carbonization of the raw materials, which yielde... Read More about Biomass-derived activated carbon with simultaneously enhanced CO2 uptake for both pre and post combustion capture applications.

Synergistic catalyst-support interactions in a graphene-Mn3O4 electrocatalyst for vanadium redox flow batteries (2015)
Journal Article
Ejigu, A., Edwards, M., & Walsh, D. A. (2015). Synergistic catalyst-support interactions in a graphene-Mn3O4 electrocatalyst for vanadium redox flow batteries. ACS Catalysis, 5(12), https://doi.org/10.1021/acscatal.5b01973

The development of vanadium redox flow batteries (VRFBs) is partly limited by the sluggishness of the electrochemical reactions at conventional carbon-based electrodes. The VO2+/VO2+ redox reaction is particularly sluggish and improvements in battery... Read More about Synergistic catalyst-support interactions in a graphene-Mn3O4 electrocatalyst for vanadium redox flow batteries.

Room temperature ionic liquid electrolytes for redox flow batteries (2015)
Journal Article
Ejigu, A., Greatorex-Davies, P., & Walsh, D. A. (2015). Room temperature ionic liquid electrolytes for redox flow batteries. Electrochemistry Communications, 54, https://doi.org/10.1016/j.elecom.2015.01.016

Redox flow batteries (RFBs) usually contain aqueous or organic electrolytes. The aim of this communication is to explore the suitability of room temperature ionic liquids (RTILs) as solvents for RFBs containing metal complexes. Towards this aim, the... Read More about Room temperature ionic liquid electrolytes for redox flow batteries.