Eranda Nikolla
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View article: Probing Surface/Bulk Structural Chemistry of Key Components of Solid Oxide Electrochemical Cells with <i>In Situ</i>/<i>Operando</i> Raman Spectroscopy
Probing Surface/Bulk Structural Chemistry of Key Components of Solid Oxide Electrochemical Cells with <i>In Situ</i>/<i>Operando</i> Raman Spectroscopy Open
The remarkable attributes of solid oxide electrochemical cell technology (e.g., energy efficiency, low cost, scalability, low emissions, and operational flexibility, etc.) drive the wider adoption of electrochemical conversion routes for s…
View article: Uncovering the Pressure-Dependent Mechanism of CO<sub>2</sub> Hydrogenation to Methanol on Ga-Promoted Cu/ZrO<sub>2</sub> Using <i>Operando</i> Modulation-Excitation DRIFTS
Uncovering the Pressure-Dependent Mechanism of CO<sub>2</sub> Hydrogenation to Methanol on Ga-Promoted Cu/ZrO<sub>2</sub> Using <i>Operando</i> Modulation-Excitation DRIFTS Open
The synthesis of methanol via CO2 hydrogenation is attracting significant interest, with Cu-based catalysts currently leading this promising approach. Incorporating Ga and Zr promoters further enhances catalyst performance by suppressing t…
View article: Visible Light Photolysis at Single Atom Sites in Semiconductor Perovskite Oxides
Visible Light Photolysis at Single Atom Sites in Semiconductor Perovskite Oxides Open
Designing catalysts with well-defined active sites with chemical functionality responsive to visible light has significant potential for overcoming scaling relations limiting chemical reactions over heterogeneous catalyst surfaces. Visible…
View article: Deconvoluting XPS Spectra of La-Containing Perovskites from First-Principles
Deconvoluting XPS Spectra of La-Containing Perovskites from First-Principles Open
Perovskite-based oxides are used in electrochemical CO2 and H2O reduction in electrochemical cells due to their compositional versatility, redox properties, and stability. However, limited knowledge exists on the mechanisms driving these p…
View article: Trace Fe in alkaline electrolyte governs the OER activity of perovskite LaNiO3 and La2NiO4 via interaction with redox-active surface NiOxHy formed by applied bias.
Trace Fe in alkaline electrolyte governs the OER activity of perovskite LaNiO3 and La2NiO4 via interaction with redox-active surface NiOxHy formed by applied bias. Open
Accurate description of activity trends among perovskite oxide oxygen evolution catalysts using electronic descriptors requires that the bulk structure of the catalyst is comparable to that of the surface. Few studies have thus far address…
View article: Nanostructured mixed metal oxides as catalysts and method of making thereof
Nanostructured mixed metal oxides as catalysts and method of making thereof Open
A method of forming a metal oxide material having a rod shape or polyhedral nanostructure includes preparing a first reverse micro-emulsion system comprising an aqueous precipitating agent dispersion and a second reverse micro-emulsion sys…
View article: Deciphering the Mechanistic Role of Individual Oxide Phases and Their Combinations in Supported Mn–Na<sub>2</sub>WO<sub>4</sub> Catalysts for Oxidative Coupling of Methane
Deciphering the Mechanistic Role of Individual Oxide Phases and Their Combinations in Supported Mn–Na<sub>2</sub>WO<sub>4</sub> Catalysts for Oxidative Coupling of Methane Open
Oxidative coupling of methane (OCM) is an attractive direct route for upgrading methane to valuable chemicals. In this study, Temporal Analysis of Products (TAP) and steady state experiments are conducted to understand the role of individu…
View article: Reactivity of Pd–MO<sub>2</sub> encapsulated catalytic systems for CO oxidation
Reactivity of Pd–MO<sub>2</sub> encapsulated catalytic systems for CO oxidation Open
Encapsulated Pd@metal–oxide catalysts were investigated as alternative active structures to supported materials for CO oxidation; the effect of the metal oxide (TiO 2 , ZrO 2 , and CeO 2 ) on activity was studied and Pd@ZrO 2 exhibited the…
View article: Dynamic Surface Reconstruction Unifies the Electrocatalytic Oxygen Evolution Performance of Nonstoichiometric Mixed Metal Oxides
Dynamic Surface Reconstruction Unifies the Electrocatalytic Oxygen Evolution Performance of Nonstoichiometric Mixed Metal Oxides Open
Compositionally versatile, nonstoichiometric, mixed ionic-electronic conducting metal oxides of the form A n+1B n O3n+1 (n = 1 → ∞; A = rare-earth-/alkaline-earth-metal cation; B = transition-metal (TM) cation) remain a highly attractive c…
View article: Atomically dispersed Pb ionic sites in PbCdSe quantum dot gels enhance room-temperature NO2 sensing
Atomically dispersed Pb ionic sites in PbCdSe quantum dot gels enhance room-temperature NO2 sensing Open
Atmospheric NO 2 is of great concern due to its adverse effects on human health and the environment, motivating research on NO 2 detection and remediation. Existing low-cost room-temperature NO 2 sensors often suffer from low sensitivity a…
View article: Nanostructured, Targeted Layered Metal Oxides as Active and Selective Heterogeneous Electrocatalysts for Oxygen Evolution
Nanostructured, Targeted Layered Metal Oxides as Active and Selective Heterogeneous Electrocatalysts for Oxygen Evolution Open
Oxygen evolution reaction (OER) is an important chemical transformation that governs the performance of technologically relevant energy conversion and storage processes, such as electrochemical water splitting in electrolyzers and metal-ai…
View article: Tunable Catalytic Performance of Palladium Nanoparticles for H<sub>2</sub>O<sub>2</sub> Direct Synthesis via Surface-Bound Ligands
Tunable Catalytic Performance of Palladium Nanoparticles for H<sub>2</sub>O<sub>2</sub> Direct Synthesis via Surface-Bound Ligands Open
There is a critical need for sustainable routes to produce hydrogen peroxide, H2O2. A promising approach involves direct synthesis from molecular hydrogen and oxygen at (sub)ambient temperatures using unmodified supported Pd catalysts, whi…
View article: Electrochemical Conversion of Biomass-Based Oxygenated Compounds
Electrochemical Conversion of Biomass-Based Oxygenated Compounds Open
Dwindling fossil fuel resources and substantial release of CO 2 from their processing have increased the appeal to use biomass as a sustainable platform for synthesis of chemicals and fuels. Steps toward this will require selective upgradi…
View article: Efficient Oxygen Electrocatalysis by Nanostructured Mixed-Metal Oxides
Efficient Oxygen Electrocatalysis by Nanostructured Mixed-Metal Oxides Open
Oxygen electrocatalysis plays a critical role in the efficiency of important energy conversion and storage systems. While many efforts have focused on designing efficient electrocatalysts for these processes, optimal catalysts that are ine…