Outputs (50)

Electrochemical Goniometry: Keystone Reactivity at the Three-Phase Boundary (2024)
Journal Article
Varley, T. S., Lawrence, N. S., & Wadhawan, J. D. (online). Electrochemical Goniometry: Keystone Reactivity at the Three-Phase Boundary. Journal of Solid State Electrochemistry, https://doi.org/10.1007/s10008-024-05932-4

Contact angles of liquid, spherical cap droplets immobilised on an electrode surface and bathed by a fluid are important, quantifiable measures of the liquid/fluid interfacial tension. Optical goniometry, even if computer assisted, suffers when the c... Read More about Electrochemical Goniometry: Keystone Reactivity at the Three-Phase Boundary.

Editorial overview: Innovative methods in electrochemistry (2023): Electrochemical techniques: Smart approaches for timely problems (2023)
Journal Article
Wadhawan, J., & Maisonhaute, E. (2024). Editorial overview: Innovative methods in electrochemistry (2023): Electrochemical techniques: Smart approaches for timely problems. Current Opinion in Electrochemistry, 43, Article 101426. https://doi.org/10.1016/j.coelec.2023.101426

Oxidative Dissolution of Lithium and Manganese from Lithium Manganospinel (LiMn 2 O 4 ): Towards Climate-Smart Processes for Critical Metal Recycling (2023)
Journal Article
Ward, R. A., Kocsis, D., & Wadhawan, J. D. (2023). Oxidative Dissolution of Lithium and Manganese from Lithium Manganospinel (LiMn 2 O 4 ): Towards Climate-Smart Processes for Critical Metal Recycling. Energy advances, https://doi.org/10.1039/d2ya00196a

This work reports the oxidative breakdown of the LiMn2O4 structure using alkaline hypochlorite, as a method for recovering both lithium and manganese species. The heterogeneous dissolution rate for this process is monitored through the formation of t... Read More about Oxidative Dissolution of Lithium and Manganese from Lithium Manganospinel (LiMn 2 O 4 ): Towards Climate-Smart Processes for Critical Metal Recycling.

Empowering clean water whilst safeguarding water distribution pipeline integrity: Towards manganese- and iron-free lime hydrate for water treatment (2023)
Journal Article
Wadhawan, J. D., Kocsis, D., Meyer, C., Ward, R., Thompson, M., Prior, T. J., Kelly, S. M., & Lawrence, N. (2023). Empowering clean water whilst safeguarding water distribution pipeline integrity: Towards manganese- and iron-free lime hydrate for water treatment. Environmental Science: Water Research & Technology, https://doi.org/10.1039/d2ew00109h

Hydrated limes are amongst the most economically valuable alkalis used by the water industry for the treatment of potable water. They are typically manufactured from the thermal decomposition of high purity limestones. However, the latter contain bot... Read More about Empowering clean water whilst safeguarding water distribution pipeline integrity: Towards manganese- and iron-free lime hydrate for water treatment.

Nafion® Coated Electropolymerised Flavanone-based pH Sensor (2022)
Journal Article
Miranda, M., Carvetta, C., Sisodia, N., Shirley, L., Day, C., McGuinness, K., …Lawrence, N. S. (in press). Nafion® Coated Electropolymerised Flavanone-based pH Sensor. Electroanalysis, https://doi.org/10.1002/elan.202100652

This work summarizes the electrochemical response of flavanone carbon composite electrodes in comparison with Nafion®-coated flavanone carbon composite electrodes, for use as voltammetric pH sensors in both buffered and low-buffered media. Square wav... Read More about Nafion® Coated Electropolymerised Flavanone-based pH Sensor.

Asymmetric and Anharmonic Electrode Kinetics: Evaluation of a Model for Electron Transfer with Concerted Rupture of Weak, Inner Shell Interactions (2021)
Journal Article
Lawrence, N. S., Schöllhorn, B., & Wadhawan, J. D. (2021). Asymmetric and Anharmonic Electrode Kinetics: Evaluation of a Model for Electron Transfer with Concerted Rupture of Weak, Inner Shell Interactions. ChemistrySelect, 6(46), 13331-13335. https://doi.org/10.1002/slct.202103526

A surface-integrated form of the widely used (anharmonic) Lennard-Jones 12–6 interaction potential, the Lennard-Jones 9–3 potential, is used to develop a quadratic activation/driving force relationship that gives rise to asymmetric Tafel plots for el... Read More about Asymmetric and Anharmonic Electrode Kinetics: Evaluation of a Model for Electron Transfer with Concerted Rupture of Weak, Inner Shell Interactions.

In situ recalibration of ion selective electrodes (2021)
Journal Article
Wadhawan, J. D., Sisodia, N., Lawrence, N. S., & McGuinness, K. L. (2022). In situ recalibration of ion selective electrodes. Sensors and Diagnostics, 1(1), 134-138. https://doi.org/10.1039/d1sd00003a

Reference electrode drift resulting from the exchange of ions at the solution/reference electrode chamber interface is the number one reason why ion selective electrodes and pH sensors in particular require recalibration, costing companies up to 70%... Read More about In situ recalibration of ion selective electrodes.

Unravelling the Occurrence of Mediator-Blood Protein Interactions via the Redox Catalysis of the Physiological Gasotransmitter Hydrogen Sulfide (2021)
Journal Article
Ward, H. J., Ward, R. A., Lawrence, N. S., & Wadhawan, J. D. (2021). Unravelling the Occurrence of Mediator-Blood Protein Interactions via the Redox Catalysis of the Physiological Gasotransmitter Hydrogen Sulfide. ChemistrySelect, 6(37), 10059-10062. https://doi.org/10.1002/slct.202102974

Ferrocenemethanol is employed as an aqueous, homogeneous redox mediator for hydrogen sulfide. The reaction is seen to follow an EC’ mechanism over the range 6≤pH≤9, with bisulfide reacting four times more rapidly than hydrogen sulfide. In the presenc... Read More about Unravelling the Occurrence of Mediator-Blood Protein Interactions via the Redox Catalysis of the Physiological Gasotransmitter Hydrogen Sulfide.

Interaction of temperature, salinity and extracellular polymeric substances controls trace element incorporation into tufa calcite (2021)
Journal Article
Rogerson, M., Pedley, H. M., Greenway, G. M., & Wadhawan, J. D. (in press). Interaction of temperature, salinity and extracellular polymeric substances controls trace element incorporation into tufa calcite. The Depositional Record, https://doi.org/10.1002/dep2.160

The influence of extracellular polymeric substances on carbonate mineral growth in natural settings remains one of the most poorly understood contributors to the growth of non-marine carbonate sediments. The influences of these materials are complica... Read More about Interaction of temperature, salinity and extracellular polymeric substances controls trace element incorporation into tufa calcite.

Decorating BODIPY with electron-withdrawing NO group: spectroelectrochemical consequences and computational investigation (2021)
Journal Article
Silva, T. L., Nascimento, T. A. D., Almeida, A. K. . A. . D., Melo, S. M. . G., Silva, J. C. . S. . D., Xavier, J. A., …Goulart, M. O. (2021). Decorating BODIPY with electron-withdrawing NO group: spectroelectrochemical consequences and computational investigation. ChemElectroChem, 8(15), 2921-2934. https://doi.org/10.1002/celc.202100609

4,4-difluoro-5,7-dimethyl-4-bora-3a,4a-diaza-s-indacene (BODIPY) and derivatives are an outstanding class of fluorescent dyes. Herein, we report on the introduction of a nitrosyl moiety into the BODIPY structure and its dramatic effect on the observe... Read More about Decorating BODIPY with electron-withdrawing NO group: spectroelectrochemical consequences and computational investigation.