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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.

Hydroperoxide-Mediated Degradation of Acetonitrile in the Lithium–Air Battery (2023)
Journal Article
McNulty, R. C., Jones, K. D., Holc, C., Jordan, J. W., Bruce, P. G., Walsh, D. A., …Johnson, L. R. (2023). Hydroperoxide-Mediated Degradation of Acetonitrile in the Lithium–Air Battery. Advanced Energy Materials, 13(3), Article 2300579. https://doi.org/10.1002/aenm.202300579

Understanding and eliminating degradation of the electrolyte solution is arguably the major challenge in the development of high energy density lithium–air batteries. The use of acetonitrile provides cycle stability comparable to current state-of-the... Read More about Hydroperoxide-Mediated Degradation of Acetonitrile in the Lithium–Air Battery.

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.

Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces (2022)
Journal Article
Amin, S. S., Cameron, J. M., Cousins, R. B., Wrigley, J., Liirò-Peluso, L., Sans, V., …Newton, G. N. (2022). Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces. Inorganic Chemistry Frontiers, 9(8), 1777-1784. https://doi.org/10.1039/d2qi00174h

The self-assembly of hierarchical nanostructures on surfaces is a promising strategy for the development of a wide range of new technologies, such as energy-storage devices and sensors. In this work we show that amphiphilic, organofunctionalized hybr... Read More about Redox-active hierarchical assemblies of hybrid polyoxometalate nanostructures at carbon surfaces.

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.

Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes (2022)
Journal Article
Jordan, J. W., Cameron, J. M., Lowe, G. A., Rance, G. A., Fung, K. L. Y., Johnson, L. R., …Newton, G. N. (2022). Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes. Angewandte Chemie International Edition, 61(8), Article e202115619. https://doi.org/10.1002/anie.202115619

We describe the preparation of hybrid redox materials based on polyoxomolybdates encapsulated within single-walled carbon nanotubes (SWNTs). Polyoxomolybdates readily oxidize SWNTs under ambient conditions in solution, and here we study their charge-... Read More about Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes.

Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes (2022)
Journal Article
Jordan, J. W., Cameron, J. M., Lowe, G. A., Rance, G. A., Fung, K. L. Y., Johnson, L. R., …Newton, G. N. (2022). Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes. Angewandte Chemie, 134(8), Article e202115619. https://doi.org/10.1002/ange.202115619

We describe the preparation of hybrid redox materials based on polyoxomolybdates encapsulated within single-walled carbon nanotubes (SWNTs). Polyoxomolybdates readily oxidize SWNTs under ambient conditions in solution, and here we study their charge-... Read More about Stabilization of Polyoxometalate Charge Carriers via Redox‐Driven Nanoconfinement in Single‐Walled Carbon Nanotubes.

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.

Molecular redox species for next-generation batteries (2021)
Journal Article
Cameron, J. M., Holc, C., Kibler, A. J., Peake, C. L., Walsh, D. A., Newton, G. N., & Johnson, L. R. (2021). Molecular redox species for next-generation batteries. Chemical Society Reviews, 50(10), 5863-5883. https://doi.org/10.1039/d0cs01507e

This Tutorial Review describes how the development of dissolved redox-active molecules is beginning to unlock the potential of three of the most promising ‘next-generation’ battery technologies – lithium–air, lithium–sulfur and redox-flow batteries.... Read More about Molecular redox species for next-generation batteries.

2021 roadmap on lithium sulfur batteries (2021)
Journal Article
Robinson, J. B., Xi, K., Kumar, R. V., Ferrari, A. C., Au, H., Titirici, 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.

Best Practice for Evaluating Electrocatalysts for Hydrogen Economy (2020)
Journal Article
Bird, M. A., Goodwin, S. E., & Walsh, D. A. (2020). Best Practice for Evaluating Electrocatalysts for Hydrogen Economy. ACS Applied Materials and Interfaces, 12(18), 20500-20506. https://doi.org/10.1021/acsami.0c03307

Screening new electrocatalysts is key to the development of new materials for next-generation energy devices such as fuel cells and electrolysers. The counter electrodes used in such tests are often made from materials such as Pt and Au, which can di... Read More about Best Practice for Evaluating Electrocatalysts for Hydrogen Economy.

Host–Guest Hybrid Redox Materials Self‐Assembled from Polyoxometalates and Single‐Walled Carbon Nanotubes (2019)
Journal Article
Jordan, J. W., Lowe, G. A., McSweeney, R. L., Stoppiello, C. T., Lodge, R. W., Skowron, S. T., …Khlobystov, A. N. (2019). Host–Guest Hybrid Redox Materials Self‐Assembled from Polyoxometalates and Single‐Walled Carbon Nanotubes. Advanced Materials, 31(41), Article 1904182. https://doi.org/10.1002/adma.201904182

The development of next‐generation molecular‐electronic, electrocatalytic, and energy‐storage systems depends on the availability of robust materials in which molecular charge‐storage sites and conductive hosts are in intimate contact. It is shown he... Read More about Host–Guest Hybrid Redox Materials Self‐Assembled from Polyoxometalates and Single‐Walled Carbon Nanotubes.

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.