Dr Carlos Fernandez's Outputs (306)

Synthesis of nanoflower-shaped MXene derivative with unexpected catalytic activity for dehydrogenation of sodium alanates. (2017)
Journal Article
ZOU, G., LIU, B., GUO, J., ZHANG, Q., FERNANDEZ, C. and PENG, Q. 2017. Synthesis of nanoflower-shaped MXene derivative with unexpected catalytic activity for dehydrogenation of sodium alanates. ACS applied materials and interfaces [online], 9(8), pages 7611-7618. Available from: https://doi.org/10.1021/acsami.6b13973

Surface group modification and functionalization of two-dimensional materials in many cases are deemed as effective approaches to achieve some distinctive properties. Herein, we present a new nanoflower-shaped TiO2/C composite which was synthesized b... Read More about Synthesis of nanoflower-shaped MXene derivative with unexpected catalytic activity for dehydrogenation of sodium alanates..

Facile synthesis of a nickel sulfide (NiS) hierarchical flower for the electrochemical oxidation of H2O2 and the methanol oxidation reaction (MOR). (2017)
Journal Article
ZHANG, J., XU, C., ZHANG, D., ZHAO, J., ZHENG, S., SU, H., WEI, F., YUAN, B. and FERNANDEZ, C. 2017. Facile synthesis of a nickel sulfide (NiS) hierarchical flower for the electrochemical oxidation of H2O2 and the methanol oxidation reaction (MOR). Journal of the electrochemical society [online], 164(4), pages B92-B96. Available from: https://doi.org/10.1149/2.0221704jes

The synthesis of a novel hierarchical flower-like NiS via a solvothermal method for the electrochemcial oxidation of H2O2 on a carbon paste electrode with high catalytic activity for the (MOR) in an alkaline medium has been reported. Novel nickel sul... Read More about Facile synthesis of a nickel sulfide (NiS) hierarchical flower for the electrochemical oxidation of H2O2 and the methanol oxidation reaction (MOR)..

Theoretical treatment of diffusion and kinetics of osmium redox polymer mediated glucose oxidase enzyme electrodes: analytical expression of current density for varying potential. (2017)
Journal Article
KIRTHIGA, M., RAJENDRAN, L. and FERNANDEZ, C. 2017. Theoretical treatment of diffusion and kinetics of osmium redox polymer mediated glucose oxidase enzyme electrodes: analytical expression of current density for varying potential. Electrochimica acta [online], 230, pages 89-97. Available from: https://doi.org/10.1016/j.electacta.2017.01.149

We present for the first time a mathematical model of osmium redox polymer mediated glucose oxidase enzyme electrodes. This model is based on a system of three coupled nonlinear reaction-diffusion equations under steady-state conditions for biochemic... Read More about Theoretical treatment of diffusion and kinetics of osmium redox polymer mediated glucose oxidase enzyme electrodes: analytical expression of current density for varying potential..

The analysis and fabrication of a novel tin-nickel mixed salt electrolytic coloured processing and the performance of coloured films for Al-12.7Si-0.7Mg alloy in acidic and alkali corrosive environments. (2017)
Journal Article
SHANG, Y., LIU, C., FERNANDEZ, C., RAJENDRAN, L., KIRTHIGA, M., WANG, Y., NIU, D., LIU, D. and WANG, L. 2017. The analysis and fabrication of a novel tin-nickel mixed salt electrolytic coloured processing and the performance of coloured films for Al-12.7Si-0.7Mg alloy in acidic and alkali corrosive environments. International journal of precision engineering and manufacturing [online], 18(1), pages 93-98. Available from: https://doi.org/10.1007/s12541-017-0011-x

We present for the first time the analysis and fabrication of a novel Tin-Nickel mixed salt electrolytic coloured processing and the performance of coloured films for Al-12.7Si-0.7Mg alloy. This alloy is a novel alloy containing high silicon aluminum... Read More about The analysis and fabrication of a novel tin-nickel mixed salt electrolytic coloured processing and the performance of coloured films for Al-12.7Si-0.7Mg alloy in acidic and alkali corrosive environments..

Extending the capability of forensic electrochemistry to the novel psychoactive substance benzylpiperazine. (2016)
Journal Article
WADDELL, S.A., FERNANDEZ, C., INVERARITY, C.C. and PRABHU, R. 2017. Extending the capability of forensic electrochemistry to the novel psychoactive substance benzylpiperazine. Sensing and bio-sensing research [online], 13, pages 28-39. Available from: https://doi.org/10.1016/j.sbsr.2016.12.001

Benzylpiperazine (BZP) is a novel psychoactive substance that is commonly abused in tablet form as an 'ecstasy-type' drug. Electroanalysis offers genuine potential for field testing of bulk drug samples. This research is the first to investigate the... Read More about Extending the capability of forensic electrochemistry to the novel psychoactive substance benzylpiperazine..

Online state of charge estimation for the aerial lithium-ion battery packs based on the improved extended Kalman filter method. (2016)
Journal Article
WANG, S., FERNANDEZ, C., SHANG, L., LI, Z. and LI, J. 2017. Online state of charge estimation for the aerial lithium-ion battery packs based on the improved extended Kalman filter method. Journal of energy storage [online], 9, pages 69-83. Available from: https://doi.org/10.1016/j.est.2016.09.008

An effective method to estimate the integrated state of charge (SOC) value for the lithium-ion battery (LIB) pack is proposed, because of its capacity state estimation needs in the high-power energy supply applications, which is calculated by using t... Read More about Online state of charge estimation for the aerial lithium-ion battery packs based on the improved extended Kalman filter method..

Electrochemical determination of chemical oxygen demand using Ti/TiO2 electrode. (2016)
Journal Article
GE, Y., ZHAI, Y., NIU, D., WANG, Y., FERNANDEZ, C., RAMAKRISHNAPPA, T., HU, X. and WANG, L. 2016. Electrochemical determination of chemical oxygen demand using Ti/TiO2 electrode. International journal of electrochemical science [online], 11(12), pages 9812-9821. Available from: https://doi.org/10.20964/2016.12.05

To overcome the shortcomings of the conventional potassium dichromate method (PDM) for monitoring chemical oxygen demand (COD) of waters, many efforts have been made on developing quick and environment-friendly techniques. Among all alternatives, ele... Read More about Electrochemical determination of chemical oxygen demand using Ti/TiO2 electrode..

Characterisation of peroxidase-like activity of thermally synthesized gold nanoparticles. (2016)
Presentation / Conference Contribution
DOCEKALOVA, M., UHLIROVA, D., STANKOVA, M., KEPINSKA, M., SOCHOR, J., MILNEROWICZ, H., BABULA, P., FERNANDEZ, C., BRAZDOVA, M., ZIDKOVA, J., SUCHY, P. and KIZEK, R. 2016. Characterisation of peroxidase-like activity of thermally synthesized gold nanoparticles. In Proceedings of the 8th Nanomaterials international conference 2016 (NANOCON 2016): research and application, 19-21 October 2016, Brno, Czech Republic. Ostrava: Tanger Ltd [online], pages 429-434. Available from: https://www.confer.cz/nanocon/2016/download/506-characterisation-of-peroxidase-like-activity-of-thermally-synthesized-gold-nanoparticles.pdf

The development of nanotechnologies has attracted a lot of interest since it brings new possibilities in the field of nanomedical applications, from diagnostic methods to targeted nanotransporters. Gold nanoparticles (AuNPs) belong to a group of nano... Read More about Characterisation of peroxidase-like activity of thermally synthesized gold nanoparticles..

A new mathematical modelling using Homotopyperturbation method to solve nonlinear equations in enzymatic glucose fuel cells. (2016)
Journal Article
SARANYA, J., RAJENDRAN, L., WANG, L. and FERNANDEZ, C. 2016. A new mathematical modelling using Homotopyperturbation method to solve nonlinear equations in enzymatic glucose fuel cells. Chemical physics letters [online], 662, pages 317-326. Available from: https://doi.org/10.1016/j.cplett.2016.09.056

For the first time a mathematical modelling of the enzymatic glucose membraneless fuel cell with direct electron transfer has been reported. The niche of this mathematical modelling is the description of the new Homotopy perturbation method to solve... Read More about A new mathematical modelling using Homotopyperturbation method to solve nonlinear equations in enzymatic glucose fuel cells..

Adsorption removal of methylene blue from aqueous solution on carbon-coated Fe3O4 microspheres functionalized with chloroacetic acid. (2016)
Journal Article
ZHANG, Z., KIM, C., FERNANDEZ, C., SUNDARAM, M.M., RAMAKRISHNAPPA, T., WANG, Y., WANG, L., SUN, T. and HU, X. 2018. Adsorption removal of methylene blue from aqueous solution on carbon-coated Fe3O4 microspheres functionalized with chloroacetic acid. Science and engineering of composite materials [online], 25(2), pages 353-361. Available from: https://doi.org/10.1515/secm-2016-0138

We report the preparation and employability of carbon-coated Fe3O4 (Fe3O4/C) microspheres functionalized with chloroacetic acid (CAA) for the removal of methylene blue (MB) in aqueous solution. The prepared magnetic microspheres (Fe3O4/C-CAA) were ch... Read More about Adsorption removal of methylene blue from aqueous solution on carbon-coated Fe3O4 microspheres functionalized with chloroacetic acid..

Synergistic electronic pull of graphene oxide supported Pd nanoparticles on enhancing catalytic activity of electro deposited Pt nanoparticles for methanol oxidation reaction. (2016)
Journal Article
YOUSAF, A.B., KHAN, R., IMRAN, M., FERNANDEZ, C., YUAN, C-Z. and SONG, L. 2016. Synergistic electronic pull of graphene oxide supported Pd nanoparticles on enhancing catalytic activity of electro deposited Pt nanoparticles for methanol oxidation reaction. International journal of electrochemical science [online], 11(8), pages 6735-6746. Available from: https://doi.org/10.20964/2016.08.12

Graphene oxide supported clean Pd nanoparticles were synthesized by using CO as a reducing agent. Pt film was deposited on Pd NPs through electrochemical potential cycling method. The as-developed catalyst, which exhibits higher catalytic performance... Read More about Synergistic electronic pull of graphene oxide supported Pd nanoparticles on enhancing catalytic activity of electro deposited Pt nanoparticles for methanol oxidation reaction..

Effect of deflocculation on the efficiency of sludge reduction by Fenton process. (2016)
Journal Article
AMUDHA, V., KAVITHA, S., FERNANDEZ, C., ADISHKUMAR, S. and RAJESH BANU, J. 2016. Effect of deflocculation on the efficiency of sludge reduction by Fenton process. Environmental science and pollution research [online], 23(19), pages 19281-19291. Available from: https://doi.org/10.1007/s11356-016-7118-y

A novel approach to improve the efficiency of Fenton treatment for sludge reduction through the implication of a deflocculating agent citric acid, for the exclusion of extracellular polymeric substances (EPS) from waste-activated sludge (WAS), was in... Read More about Effect of deflocculation on the efficiency of sludge reduction by Fenton process..

Synthesis and characterization of high-quality PbI2 nanopowders from depleted SLA accumulator anode and cathode. (2016)
Journal Article
MALEVU, T.D., OCAYA, R.O., TSHABALALA, K.G. and FERNANDEZ, C. 2016. Synthesis and characterization of high-quality PbI2 nanopowders from depleted SLA accumulator anode and cathode. Applied physics A: materials science and processing [online], 122(7), article 630. Available from: https://doi.org/10.1007/s00339-016-0158-9

High-quality lead iodide (PbI2) nanoparticles were synthesized from both anode and cathode of a discarded sealed lead-acid accumulator as starting materials. The structure, morphology, chemical composition and optical properties of washed PbI2 were i... Read More about Synthesis and characterization of high-quality PbI2 nanopowders from depleted SLA accumulator anode and cathode..

Nutritional and methodological perspectives of zinc ions and complexes: physiological and pathological states. (2016)
Journal Article
MOLINA-LOPEZ, J., PLANELLS DEL POZO, E., FLOREA, D.L., FERNANDEZ, C., OSSO, B.Q., ZALEWSKA, M., KRIZKOVA, S., HEGER, Z., KIZEK, R. and ADAM, V. 2016. Nutritional and methodological perspectives of zinc ions and complexes: physiological and pathological states. International journal of electrochemical science [online], 11(6), pages 4470-4496. Available from: https://doi.org/10.20964/2016.06.38

Zinc, an essential element playing crucial roles in numerous physiological, but also pathological processes, is still one of the most studied elements. The main importance of this metal is especially based on the structural role of zinc ions in many... Read More about Nutritional and methodological perspectives of zinc ions and complexes: physiological and pathological states..

Disposable screen printed sensor for the electrochemical detection of methamphetamine in undiluted saliva. (2016)
Journal Article
BARTLETT, C.-A., TAYLOR, S., FERNANDEZ, C., WANKLYN, C., BURTON, D., ENSTON, E., RANICZKOWSKA, A., BLACK, M. and MURPHY, L. 2016. Disposable screen printed sensor for the electrochemical detection of methamphetamine in undiluted saliva. Chemistry central journal [online], 10, article number 3. Available from: https://doi.org/10.1186/s13065-016-0147-2

Background: Methamphetamine has an adverse effect on the ability to drive safely. Police need to quickly screen potentially impaired drivers therefore a rapid disposable test for methamphetamine is highly desirable. This is the first proof-of-concept... Read More about Disposable screen printed sensor for the electrochemical detection of methamphetamine in undiluted saliva..

Differential pulse voltammetric determination of albendazole and mebendazole in pharmaceutical formulations based on modified sonogel carbon paste electrodes with perovskite-type LaFeO3 nanoparticles. (2016)
Journal Article
DE MACEDO, I.Y.L., GARCIA, L.F., DE SOUZA, A.R., DA SILVA, A.M.L., FERNANDEZ, C., SANTOS, M.D.G., MAGALHÃES, R.S., TORRES, I.M.S. and GIL, E.S. 2016. Differential pulse voltammetric determination of albendazole and mebendazole in pharmaceutical formulations based on modified sonogel carbon paste electrodes with perovskite-type LaFeO3 nanoparticles. Journal of the Electrochemical Society [online], 163(8), pages B428-B434. Available from: https://doi.org/10.1149/2.0661608jes

Benzimidazoles, such as albendazole (AB) and mebendazole (MB), are common anthelmintic agents, widely used throughout the world to combat parasitic diseases. The electroanalytical sensing of AB and MB based on Perovskite-Type LaFeO3 nanoparticles mod... Read More about Differential pulse voltammetric determination of albendazole and mebendazole in pharmaceutical formulations based on modified sonogel carbon paste electrodes with perovskite-type LaFeO3 nanoparticles..

Correlation among physical and electrochemical behaviour of nanostructured electrolytic manganese dioxide from leach liquor and synthetic for aqueous asymmetric capacitor. (2016)
Journal Article
SUNDARAM, M.M., BISWAL, A., MITCHELL, D., JONES, R. and FERNANDEZ, C. 2016. Correlation among physical and electrochemical behaviour of nanostructured electrolytic manganese dioxide from leach liquor and synthetic for aqueous asymmetric capacitor. Physical chemistry chemical physics [online], 18(6), pp. 4711-4720. Available from: https://doi.org/10.1039/C5CP07141K

An attempt has been made to correlate the differences in structural parameters, surface areas, morphology etc. with the electrochemical capacitive behaviour of the EMDs. The nanostructured electrolytic manganese dioxides (EMD) have been synthesized t... Read More about Correlation among physical and electrochemical behaviour of nanostructured electrolytic manganese dioxide from leach liquor and synthetic for aqueous asymmetric capacitor..

Pharmaceutical electrochemistry: the electrochemical oxidation of paracetamol and its voltammetric sensing in biological samples based on screen printed graphene electrodes. (2015)
Journal Article
FERNANDEZ, C., HEGER, Z., KIZEK, R., RAMAKRISHNAPPA, T., BORUN, A. and FAISAL, N.H. 2015. Pharmaceutical electrochemistry: the electrochemical oxidation of paracetamol and its voltammetric sensing in biological samples based on screen printed graphene electrodes. International journal of electrochemical science [online], 10(9), pages 7440-7452. Available from: https://doi.org/10.1016/S1452-3981(23)17361-5

We present a sensitive, fast and unmodified sensor for the electrochemical detection of paracetamol. The electrochemical behaviours of paracetamol on screen printed graphene electrodes were investigated for the first time by cyclic voltammetry. The r... Read More about Pharmaceutical electrochemistry: the electrochemical oxidation of paracetamol and its voltammetric sensing in biological samples based on screen printed graphene electrodes..

Rare elements electrochemistry: the development of a novel electrochemical sensor for the rapid detection of Europium in environmental samples using gold electrode modified with 2-pyridinol-1-oxide. (2015)
Journal Article
CRUICKSHANK, L., OFFICER, S., POLLARD, P., PRABHU, R., STUTTER, M. and FERNANDEZ, C. 2015. Rare elements electrochemistry: the development of a novel electrochemical sensor for the rapid detection of Europium in environmental samples using gold electrode modified with 2-pyridinol-1-oxide. Analytical sciences [online], 31(7), pages 623-627. Available from: https://doi.org/10.2116/analsci.31.623

This work presents for the first time the electrochemical determination of europium using cyclic voltammetry at gold electrodes modified with 2-pyridinol-1-oxide. A well-defined oxidation peak was observed in cyclic voltammetry as a result of the oxi... Read More about Rare elements electrochemistry: the development of a novel electrochemical sensor for the rapid detection of Europium in environmental samples using gold electrode modified with 2-pyridinol-1-oxide..

Pharmaceutical electrochemistry: the electrochemical detection of aspirin utilising screen printed graphene electrodes as sensors platforms. (2015)
Journal Article
KRUANETR, S., PRABHU, R., POLLARD, P. and FERNANDEZ, C. 2015. Pharmaceutical electrochemistry: the electrochemical detection of aspirin utilising screen printed graphene electrodes as sensors platforms. Surface engineering and applied electrochemistry [online], 51(3), pages 283-289. Available from: https://doi.org/10.3103/S1068375515030114

A sensitive electrochemical sensor was designed for acetyl salicylic acid detection using graphene modified Screen Printed Electrodes. The electrochemical response of the sensor with graphene was improved compared to Screen Printed Electrodes without... Read More about Pharmaceutical electrochemistry: the electrochemical detection of aspirin utilising screen printed graphene electrodes as sensors platforms..