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Performance of lyotropic liquid crystal-based photoelectrochemical capacitors for solar-to- electrical energy conversion (2018)
Conference Proceeding
Halls, J. E., Ward, H. J., Althali, A. A., Testut, L., Kocsis, D., Alhassan, H. S., …Wadhawan, J. D. (2018). Performance of lyotropic liquid crystal-based photoelectrochemical capacitors for solar-to- electrical energy conversion. In SIPS 2018, 2017-

Regenerative photoelectrochemical capacitors, adapted from a experimental system previously reported (J. E. Halls, J. D. Wadhawan, Energy Environ. Sci., 2012, 5, 6541) and based on the doping of a lamellar lyotropic liquid crystal with visible light... Read More

Synthesis and antibacterial effects of cobalt–cellulose magnetic nanocomposites (2017)
Journal Article
Kelly, S., Kornherr, A., Alahmadi, N. S., Betts, J. W., Francesconi, M. G., Prior, T. J., …Kornherr, A. (2016). Synthesis and antibacterial effects of cobalt–cellulose magnetic nanocomposites. RSC advances, 7(32), (20020-20026). doi:10.1039/c7ra00920h. ISSN 2046-2069

© The Royal Society of Chemistry. Green synthesis is employed to prepare cobalt/cellulose nanocomposites with cubic (α-cobalt) cobalt as a main component with antibacterial and magnetic properties. An in situ reduction of aqueous solutions of cobalt... Read More

A mechanistic study of the EC′ mechanism – the split wave in cyclic voltammetry and square wave voltammetry (2016)
Journal Article
Ward, H. J., Lawrence, N. S., Wadhawan, J. D., Cooper, J. J., Fisher, A. C., & Song, P. (in press). A mechanistic study of the EC′ mechanism – the split wave in cyclic voltammetry and square wave voltammetry. RSC advances, 6(74), (70237-70242). doi:10.1039/c6ra08723j. ISSN 2046-2069

In this paper, a detailed investigation of electrochemical reactions coupled with homogenous chemical steps using cyclic voltammetry (CV) and square wave voltammetry (SWV) was carried out to study the electrocatalytic (EC’) mechanism. In CV, paramete... Read More

Study of Pyridine-Mediated Electrochemical Reduction of CO2 to Methanol at High CO2 Pressure (2016)
Journal Article
Haywood, S. K., Rybchenko, S. I., Touhami, D., & Wadhawan, J. D. (2016). Study of Pyridine-Mediated Electrochemical Reduction of CO2 to Methanol at High CO2 Pressure. ChemSusChem, 9(13), (1660-1669). doi:10.1002/cssc.201600267. ISSN 1864-5631

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim The recently proposed highly efficient route of pyridine-catalyzed CO 2 reduction to methanol was explored on platinum electrodes at high CO 2 pressure. At 55 bar (5.5 MPa) of CO 2 , the bulk elec... Read More

Mg/Ca ratios in freshwater microbial carbonates: Thermodynamic, kinetic and vital effects (2014)
Journal Article
Pedley, H., Greenway, G., Rogerson, M., Wadhawan, J., & Saunders, P. (2014). Mg/Ca ratios in freshwater microbial carbonates: Thermodynamic, kinetic and vital effects. Geochimica et cosmochimica acta, 147, (107-118). doi:10.1016/j.gca.2014.10.014. ISSN 0016-7037

The ratio of magnesium to calcium (Mg/Ca) in carbonate minerals in an abiotic setting is conventionally assumed to be predominantly controlled by (Mg/Ca)solution and a temperature dependant partition coefficient. This temperature dependence suggests... Read More

Wastewater as a photoelectrochemical fuel source: light-to-electrical energy conversion with organochloride remediation (2012)
Journal Article
Halls, J. E., Johnson, T., Altalhi, A. A., & Wadhawan, J. D. (2012). Wastewater as a photoelectrochemical fuel source: light-to-electrical energy conversion with organochloride remediation. Electrochemistry communications, 22, (4-7). doi:10.1016/j.elecom.2012.04.024. ISSN 1388-2481

A photogalvanic cell that employs 2,4-dichlorophenol as a fuel source, an N-substituted phenothiazine as light harvester, and sacrificial zinc anode is presented, and shown to afford a ca. 4% light-to-electrical power conversion efficiency in violet... Read More

Electrochemistry of organometallic lyotropic chromonic liquid crystals (2012)
Journal Article
Halls, J. E., Bourne, R. W., Wright, K. J., Partington, L. I., Tamba, M. G., Zhou, Y., …Wadhawan, J. D. (2012). Electrochemistry of organometallic lyotropic chromonic liquid crystals. Electrochemistry communications, 19(1), (50-54). doi:10.1016/j.elecom.2012.02.032. ISSN 1388-2481

Two aqueous lyotropic chromonic liquid crystals made from nickel(II) or copper(II) phthalocyananine tetrasulfonic acid tetrasodium salt are prepared with characterisation through optical polarising microscopy, X-ray diffraction and conductivity. Thes... Read More

Voltammetric Immunoassay for the Detection of Protein Biomarkers (2012)
Journal Article
Haswell, S. J., Dou, Y., Wadhawan, J., & Greenman, J. (2012). Voltammetric Immunoassay for the Detection of Protein Biomarkers. Electroanalysis, 24(2), 264-272. doi:10.1002/elan.201100676

A strategy for a fast (ca. 20 min), specific, electrochemical immunoassay for the cardiac biomarker creatine kinase (CK) and the human cytokine interleukin 10 (IL10) has been developed in this paper. The polyaniline modified gold surface formed from... Read More

Photogalvanic cells based on lyotropic nanosystems: towards the use of liquid nanotechnology for personalised energy sources (2012)
Journal Article
Wadhawan, J. D., & Halls, J. E. (2012). Photogalvanic cells based on lyotropic nanosystems: towards the use of liquid nanotechnology for personalised energy sources. Energy & environmental science, 5(4), (6541-6551). doi:10.1039/c2ee03169h. ISSN 1754-5692

A lightweight, autonomous and practical, proof-of-concept electrical power source is developed within this work. It comprises a photoredox-active material embedded within the non-ionic surfactant subphase, with a second redox reagent present within t... Read More

Biphasic voltammetry of N, N, N ', N '-tetraphenyl-para-phenylenediamine microdroplets, microparticles and microparticle suspensions (2011)
Journal Article
Halls, J. E., & Wadhawan, J. D. (2011). Biphasic voltammetry of N, N, N ', N '-tetraphenyl-para-phenylenediamine microdroplets, microparticles and microparticle suspensions. Electroanalysis, 23(4), (997-1006). doi:10.1002/elan.201000633. ISSN 1040-0397

The aqueous biphasic voltammetry of the title compound is examined when it is immobilised on an electrode surface either when dissolved in an array of nitrobenzene droplets, in the form of solid microparticles, or when an electrode is immersed into a... Read More

Viability of plant spore exine capsules for microencapsulation (2010)
Journal Article
Barrier, S., Diego-Taboada, A., Thomasson, M. J., Pointon, J. C., Wadhawan, J. D., Beckett, S. T., …Wadhawan, J. (2011). Viability of plant spore exine capsules for microencapsulation. Journal of materials chemistry, 21(4), (975-981). doi:10.1039/c0jm02246b. ISSN 0959-9428

Sporopollenin exine capsules (SECs) (outer exoskeletal wall of the spores of Lycopodium clavatum) were extracted and examined for their potential use as microcapsules. They were shown, by laser scanning confocal microscopy (LSCM), to be void of their... Read More

Comparison of Birch with electrochemical reduction of 2,3-diphenyl-1,4- diazaspiro[4.5]deca-1,3-diene (2010)
Journal Article
Zhou, Y., Andreou, A., Biktagirov, E., Eames, J., & Wadhawan, J. (2010). Comparison of Birch with electrochemical reduction of 2,3-diphenyl-1,4- diazaspiro[4.5]deca-1,3-diene. Electrochemistry communications, 12(11), (1493-1497). doi:10.1016/j.elecom.2010.08.016. ISSN 1388-2481

Reduction of 2,3-diphenyl-1,4-diazaspiro[4.5]deca-1,3-diene is investigated both voltammetrically (glassy-carbon electrode, 20°C, non-aqueous-solvents) and using dissolving-metals (sodium, −78°C, tetrahydrofuran (THF)/NH3(l)). Remarkabl... Read More