Daniel Martín-Yerga

Daniel Martín-Yerga
The University of Warwick · Department of Chemistry

About

56
Publications
24,634
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995
Citations
Citations since 2016
43 Research Items
916 Citations
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150

Publications

Publications (56)
Article
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Dopamine (DA) adsorption and electron-transfer kinetics are strongly sensitive to the structure and composition of carbon electrodes. Activation of carbon surfaces is a popular method to improve DA detection, but the role of carbon structural features on DA behavior remains uncertain. Herein, we use scanning electrochemical cell microscopy (SECCM)...
Article
An increased global demand for clean energy and a sustainable future has led to the intense investigation of hydrogen as a low-carbon energy source in fuel cells and chemical reductant in vital industries such as low-carbon steel production. However, the current status of H 2 production through water electrolysis in terms of global H 2 availability...
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Revealing how formation protocols influence the properties of the solid‐electrolyte interphase (SEI) on Si electrodes is key to developing the next generation of Li‐ion batteries. SEI understanding is, however, limited by the low‐throughput nature of conventional characterisation techniques. Herein, correlative scanning electrochemical cell microsc...
Article
Revealing how formation protocols influence the properties of the solid‐electrolyte interphase (SEI) on Si electrodes is key to developing the next generation of Li‐ion batteries. SEI understanding is, however, limited by the low‐throughput nature of conventional characterisation techniques. Herein, correlative scanning electrochemical cell microsc...
Article
Water electrolysis is a promising approach for the sustainable production of hydrogen, however, the unfavorable thermodynamics and sluggish kinetics of oxygen evolution reaction (OER) are associated with high anodic potentials. To lower the required potentials, an effective strategy is proposed to substitute OER with partial oxidation of degradatio...
Article
The development of alcohol-based electrolysis to enable the concurrent production of hydrogen with low electricity consumption still faces major challenges in terms of the maximum anodic current density achievable. Whilst noble metals enable a low electrode potential to facilitate alcohol oxidation, the deactivation of the catalyst at higher potent...
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Understanding the formation and properties of the solid‐electrolyte interphase (SEI) will enable the development of enhanced Li‐ion batteries (LiBs) and other battery types. Herein, we report scanning electrochemical cell microscopy (SECCM) in a glovebox to characterize the SEI formation on the basal surface of highly oriented pyrolytic graphite (H...
Article
Biomass electro‐oxidation is a promising approach for the sustainable generation of H2 by electrolysis with simultaneous synthesis of value‐added chemicals. In this work, we comparatively study the electro‐oxidation of two structurally‐different organic hydroxyacids, lactic acid and gluconic acid, to understand how the chemical structure of the hyd...
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Laser-scribed electrochemical paper-based devices (LS-ePADs) are emerging as a greener alternative to conventional carbon electrochemical sensors since their fabrication does not involve the use of chemicals and the resulting devices show good reproducibility, scalability, and interesting electrochemical properties. This work evaluates the electroc...
Article
The development of high-performance electrocatalysts for alcohol oxidation is still a major challenge to use these reactions for sustainable energy applications such as hydrogen production. In addition, understanding the reactivity under different hydrodynamic conditions is essential since the fuel is continuously fed to the anode in practical appl...
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Amongst promising available technologies enabling the transition to renewable energy sources, electrochemical oxidation of alcohols, in a direct fuel cell or in an electrolysis reaction (H2 production), can be an economically and sustainable alternative to currently used technologies. In this work, we highlight the advantages of a Pd-Ni bimetallic...
Article
The incorporation of engineered nanoparticles in commercial products and industrial processes has broadly increased in recent years, which raises concerns about their environmental impact. In this review, we present electrochemistry as a promising analytical tool towards the detection and characterization of nanoparticles for environmental purposes...
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A novel method exploiting the in situ reactivation of a PdNi catalyst to enhance the electro-oxidation of alcohols is reported. The periodic regeneration of the catalyst surface leads to significant...
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Nickel (oxy)hydroxides (NiOxHy) are promising cost-effective materials that exhibit a fair catalytic activity for the ethanol oxidation reaction (EOR) and could be used for sustainable energy conversion. Doping the NiOxHy structure with other metals could lead to enhanced catalytic properties but more research needs to be done to understand the rol...
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Screen-printed carbon electrodes (SPCEs) are widely used for electrochemical sensors. However, little is known about their electrochemical behavior at the microscopic level. In this work, we use voltammetric scanning electrochemical cell microscopy (SECCM), with dual-channel probes, to determine the microscopic factors governing the electrochemical...
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Innovative methods to achieve the user-friendly, quick, and highly sensitive detection of nanomaterials are urgently needed. Nanomaterials have increased importance in commercial products, and there are concerns about the potential risk that they entail for the environment. In addition, detection of nanomaterials can be a highly valuable tool in ma...
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Individual (bio)chemical entities could show a very heterogeneous behaviour under the same conditions that could be relevant in many biological processes of significance in the life sciences. Conventional detection approaches are only able to detect the average response of an ensemble of entities and assume that all entities are identical. From thi...
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In this work, an unexpected enhancement of the Raman signal for uric acid during the electrochemical oxidation of a silver electrode is presented. This behavior cannot be easily explained using classical models of Surface Enhanced Raman Scattering (SERS). Time resolved Raman spectroelectrochemistry is used to study this interesting process strongly...
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Spectroelectrochemical techniques are becoming increasingly versatile tools to solve a diverse range of analytical problems. Herein, the use of in situ real-time luminescence spectroelectrochemistry to quantify chloride ions is demonstrated. Utilizing the bleaching effect of chlorine-based electrogenerated products after chloride oxidation, it is s...
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Dynamic time-resolved Raman spectroelectrochemistry demonstrates the strong influence of the nanostructuring and surface charge of in situ activated disposable substrates for SERS detection. In specific conditions, a large enhancement factor...
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Electrochemically roughened silver surfaces have been widely employed for Surface-enhanced Raman scattering (SERS) assays. In most cases, the roughening process is usually performed ex situ with a specific electrolyte solution and, afterwards, the analyte is adsorbed on the substrate for the detection. This procedure has several possible issues: th...
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In this work, disposable thick-film copper electrodes were used for the detection of malachite green by Electrochemical Surface-Enhanced Raman Spectroscopy (EC-SERS). In situ real-time SERS detection of malachite green was performed during the activation of copper electrodes by voltammetry. This time-resolved method allowed to find dynamically the...
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Surface enhanced Raman scattering (SERS) is a powerful technique based on the intensification of the Raman signal because of the interaction of a molecule with a nanostructured metal surface. Electrochemically roughened silver has been widely used as SERS substrate in the qualitative detection of analytes at the ultra-trace level. However, its pote...
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In this work low-cost screen-printed transparency electrodes were fabricated and optimized for the simultaneous detection of lead and cadmium using square-wave anodic stripping voltammetry. Bismuth was employed in order to enhance preconcentration of the metals on the electrode surface. Transparency electrodes were integrated in sample vial caps fo...
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In this work, a compact instrument for time-resolved luminescence spectroelectrochemistry using low-cost disposable electrodes is reported. This instrument can be coupled with screen-printed electrodes via a specific cell and a reflection probe, which allows to observe changes occurring at the electrode/solution interface. This approach allowed to...
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Naratriptan, active pharmaceutical ingredient with antimigraine activity was electrochemically detected in untreated screen-printed carbon electrodes (SPCEs). Cyclic voltammetry and differential pulse voltammetry were used to carry out quantitative analysis of this molecule (in a Britton-Robinson buffer solution at pH 3.0) through its irreversible...
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Real-time spectroelectrochemistry of [Ru(bpy) 3 ] ²⁺ electroluminescence showed a strong correlation with electrochemical processes occurring at metal screen-printed electrodes. Luminescence was quenched when the metal oxidation takes place, but it behaved differently...
Article
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Electrochemical detection is one of the most important techniques for analysis of mercury. Electrodes with a high preconcentration capacity are employed to achieve a sensitive detection of mercury at concentrations harmless to health. The two most employed approaches in recent years are nanostructured electrodes and DNA-based assays. In the former...
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In this work, a novel method for the galvanostatic electrodeposition of copper nanoparticles on screen-printed carbon electrodes was developed. Nanoparticles of spherical morphology with sizes between 60 and 280 nm were obtained. The electrocatalytic effect of these copper nanospheres towards the oxidation of different sugars was studied. Excellent...
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In this work, a method for the detection of biotin was developed using a competitive electrochemical biosensor and cadmium-modified titanium phosphate nanoparticles (CdTiPNPs) as detection label. The electrochemical behaviour of CdTiPNPs was studied and a method for the detection of very low concentrations of these nanoparticles by anodic stripping...
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In this work, we report a simple and yet efficient stencil-printed electrochemical platform that can be integrated into the caps of sample containers and thus, allows in-field quantification of Cd(II) and Pb(II) in river water samples. The device exploits the low-cost features of carbon (as electrode material) and paper/polyester transparency sheet...
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Titanium Phosphate nanoparticles, TPNP, consisting of a NaTi2(PO4)3 core and a shell of hydrogenphosphate and dihydrogenphosphate of Titanium, undergo fast hydrolysis in water releasing phosphoric acid. This reaction is inhibited in the presence of metallic ions like Cd²⁺ or Hg²⁺, which are able to replace the protons of the shell acid phosphates....
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In this work, we describe the use of a magnetoelectrochemical support for screen-printed electrodes to improve the anodic stripping voltammetry of cadmium due to the generated magnetohydrodynamic (MHD) effect. To create a significant MHD effect, Fe(iii) was added at mM concentrations to the solution. The reduction of Fe(iii) simultaneously with the...
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Quantum dots (QDs) have special optical, surface, and electronic properties that make them useful for electrochemical applications. In this work, the electrochemical behavior of copper in ammonia medium is described using bare screen-printed carbon electrodes and the same modified with CdSe/ZnS QDs. At the bare electrodes, the electrogenerated Cu(i...
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In this work, the electrodeposition of nickel on screen-printed carbon electrodes was carried out. As themain novelty, a galvanostatic electrodeposition methodology (application of a constant current fora specific time) was chosen to perform the electrodeposition from a Ni(II) solution. Interestingly, theseconditions were able to generate nickel na...
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A lab appropriate to introduce voltammetric techniques and basic electrochemical parameters is described in this work. It is suitable to study theoretical concepts of electrochemistry in an applied way for analytical undergraduate courses. Two electroactive species, hexaammineruthenium and dopamine, are used as simple redox systems. Screen-printed...
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In this work, the selective electrodeposition of silver on quantum dots is described. The particular characteristics of the nanostructured silver thus obtained are studied by electrochemical and microscopic techniques. On one hand, the quantum dots were found to catalyse the silver electrodeposition, and on the other hand, a strong adsorption betwe...
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Screen-printed electrodes have become an essential tool in the development of electrochemical sensors and biosensors. Among the materials used for the fabrication, the most employed are the different forms of carbon. In this work, the electrochemical characterization of ordered mesoporous carbon screen-printed electrodes is carried out. The results...
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A comparative study of several screen-printed electrodes modified with electrochemically reduced graphene oxides (ERGO) by means of a constant current has been carried out. The ERGOs were produced from graphene oxides (GO) with different controlled functional groups contents and locations. The experimental reduction conditions were optimized for ea...
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A blocking-free one-step immunosensing strategy using 8-channel screen-printed arrays for the detection of anti-transglutaminase IgA antibodies, celiac disease biomarkers, was developed. A simple but novel immobilization approach to efficiently modify the surface of screen-printed electrodes with a recognition element was employed in order to minim...
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A miniaturized electrochemical biosensor array with in situ detection of quantum dots (QDs) was developed for the detection of anti-transglutaminase IgG antibodies (a celiac disease biomarker) in human sera. For the fabrication of the sensor, a 8-channel screen-printed carbon electrochemical arrays were used as transducers and modified with tissue-...
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The electrochemical determination of silver-modified titanium phosphate nanoparticles (Ag-TiPNPs) was performed using two electrochemical features of this novel kind of nanoparticles. First, a determination using the voltammetric activity of the silver from the Ag-TiPNPs was carried out. Secondly, the electrocatalytic effect of Ag-TiPNPs was shown...
Article
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A simple, fast, and inexpensive miniaturized electrochemical biosensor array with in situ detection of CdSe/ZnS quantum dots (QDs) is presented. This biosensor uses the affinity reaction between streptavidin and biotin, for biotin determination, but the methodology could be extended to other clinical biomarkers. Individual screen-printed carbon ele...
Article
Full-text available
The electrochemical behavior of mercury using different nanostructured screen-printed transducers has been studied. The first underpotential deposition (UPD) was chosen as the best electrodic process to detect low amounts of mercury on gold nanostructured electrodes. Several nanostructured electrochemical transducers using carbon nanotubes, graphen...

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