Ignacio Sanjuán Moltó

• PhD
• Postdoc at University of Duisburg-Essen

The electrocatalytic oxidation of solketal (SOR) as the anodic reaction can be used to enhance hydrogen production efficiency due to its lower overpotential compared to the oxygen evolution reaction (OER). Additionally, solketal oxidation yields besides formate also high‐value C3 products, providing an advantage over the typical alternative reactio...

Ni-Co-based oxides (Ni-Co-O) are promising oxygen evolution reaction (OER) catalysts due to their adaptable structures, affordability, abundance, and strong electrochemical performance. While various studies explored the structure-activity relationships and OER mechanisms in these catalysts, comprehensive anode development requires a systematic wor...

We introduced a new class of gas diffusion electrodes (GDEs) with adjustable pore morphology. We fabricated intrinsically conductive polymer‐composite membranes containing carbon filler, enabling a pore structure variation through film casting cum phase separation protocols. We further selectively functionalized specific pore regions of the membran...

Because of their tunable porosity and specific surface area, porous materials are of high interest for the purification of wastewater by adsorption as well as in electrocatalysis, where, in particular, developing metal‐free carbon‐based catalysts for the oxygen reduction reaction (ORR) is researched. The carbon spheres presented here can meet these...

The investigation delves into the functionality exhibited by ferroelectric BiFe0.95Mn0.05O3 (BFM) nanoparticles (NPs) concerning the hydrogen evolution reaction (HER). The electrocatalytic activity of BFM NPs undergoes a transformative shift as a consequence of mono‐, di‐, and tri‐valent cation substitution. Notably, the strategic engineering of do...

Carbon dioxide electroreduction (CO 2 R) is a promising technology for mitigating industrial CO 2 emissions and generating valuable chemicals using renewable energy sources. Recent advances have centered on fine‐tuning catalyst materials and their micro‐environments, stimulating interest within the CO 2 R community. However, testing novel catalyst...

Simultaneous electroreduction of CO2 and H2O to syngas can provide a sustainable feed for established processes used to synthesize carbon‐based chemicals. The synthesis of MOx/M‐N‐Cs (M = Ni, Fe) electrocatalysts reported via one‐step pyrolysis that shows increased performance during syngas electrosynthesis at high current densities with adaptable...

Scanning electrochemical probe microscopy (SEPM) techniques can disclose the local electrochemical reactivity of interfaces in single-entity and sub-entity studies. Operando SEPM measurements consist of using a SEPM tip to investigate the performance of electrocatalysts, while the reactivity of the interface is simultaneously modulated. This powerf...

Abstract The glycerol oxidation reaction (GOR) has high potential in substituting the oxygen evolution reaction (OER) in electrochemical water splitting, enabling the synthesis of value‐added organic products. The Cu‐rich Cu−Co hydroxycarbonates show high activity in GOR and promote formate production but undergo severe Cu leaching in the presence...

A mixed Co and Ni boride precursor was synthesized via chemical reduction and subsequently annealed at 400 or 500 °C with or without prior addition of the monomer benzoxazine. The resulting mixed CoNiB materials were investigated as electrocatalysts for three alcohol oxidation reactions (AOR) in alkaline electrolyte: the oxidation of glycerol (GOR)...

Mixed Cu‐Co hydroxycarbonates of the type (Cu 1– x Co x ) 2 CO 3 (OH) 2 have been synthesized over the whole range of Cu‐Co substitution (0 ≤ x ≤ 1) by co‐precipitation and their electrocatalytic activity in the oxidation reactions of ethanol (EOR), ethylene glycol (EGOR) and glycerol (GOR) in alkaline environment was evaluated to retrieve composi...

Electrochemical conversion of CO2 (CO2RR) has received significant attention since it could provide pathways for renewable energy storage to energy‐dense chemicals and synthetic fuels. We developed a novel CuOx/Cu/C type electrocatalyst via pyrolysis, which we used to convert CO2 at industrially relevantly current densities using gas diffusion elec...

Gas diffusion electrodes (GDE) obtained by sputtering metal films on polytetrafluoroethylene (PTFE) membranes are among the most performant electrodes used to electrochemically reduce CO 2 . The present work reveals several essential aspects for fabricating performant PTFE‐based gas diffusion electrodes (GDEs) for CO 2 electroreduction (CO 2 R). We...

The urge for carbon‐neutral green energy conversion and storage technologies has invoked the resurgence of interest in applying brucite‐type materials as low‐cost oxygen evolution reaction (OER) electrocatalysts in basic media. Transition metal layered hydroxides belonging to the brucite‐type structure family have been shown to display remarkable e...

Electrochemical denitrification is a promising approach to remove NO3⁻ towards its conversion to innocuous N2. In this work, the electrocatalytic performance of Bi, Sn and BixSny carbon-supported nanoparticles (∼10 nm) was evaluated for the selective NO3⁻ electroreduction (NER) to N2. The different electrocatalysts were synthesised using a simple c...

In this work, a new paired electrolysis procedure is successfully introduced. This is a combination of two different processes: electrochemical water softening (EWS) and electrochemical production of weak acid solutions (EPWA). This paired electrolysis method is tested for hardness removal in a simulated solution of concentrates, such as that produ...

Hardness in membrane concentrates implies lower water recoveries in desalination. Electrochemical water softening is considered as a possible solution to control this hardness. This technique is based on the electrochemically forced precipitation of insoluble compounds of hardness ions onto the cathode surface. In this work we studied, in practical...

Epigenetic modifications in DNA are strongly linked to the triggering and development of pathophysiological disorders and cancer diseases. The halogenation of DNA via radical species, particularly the formation of 5-chlorocytosine (ClC), has recently emerged as epigenetic modification. This work deals for the first time with the exploration of the...

The electrochemical softening method to remove hardness from water has not been applied in desalination practice due to a high cathodic area requirement. In this work, the use of a 3D stainless steel wool cathode is proposed to overcome this technical limitation. An extensive comparison between the 3D cathode and a 2D Ti mesh has been presented, sh...

Thiol-containing compounds such as l-cysteine have been demonstrated to play an important role in metabolism and cellular growth, acting as powerful antioxidants. Consequently, their analytical determination in biological media has received a considerable amount of attention. In this work, an electrochemical sensor for the accurate electroanalytica...

Thiol-containing compounds such as L-cysteine have been demonstrated to play an important role in metabolism and cellular growth, acting as powerful antioxidants. Consequently, their analytical determination in biological media has received a considerable amount of attention. In this work, an electrochemical sensor for the accurate electroanalytica...

The development of electroanalytical methods for the detection and quantification of nucleotides in DNA offers vital implications in assessing the degree of oxidation or epigenetic modification in DNA. Unfortunately, the electrochemical response of oligonucleotides is strongly influenced by the size, composition and nucleic base sequence. In this a...

Epigenetic modifications have been associated by many studies with several types of diseases and metabolic dysfunctions. Specifically, N7-methyl modification of guanine (7-mG) is well established to be used as a biomarker for the detection and determination of DNA methylation. The use of an electrochemical sensor has the potential to provide a simp...

Despite 7-methylguanine (7mG) has a low biological relevance as a biomarker in DNA by itself, its increment may be correlated with the presence of methylating cytosine agents. In this work, screen-printed graphite electrodes (SPGE) were used to study the electrochemical characterization of 7mG by cyclic (CV) and square wave (SWV) voltammetry. The e...