Vanadium ≈ Vanadium
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High-performance transition metal–doped Pt <sub>3</sub> Ni octahedra for oxygen reduction reaction Open
Molybdenum doping drives high activity Platinum (Pt) is an effective catalyst of the oxygen reduction reaction in fuel cells but is scarce. One approach to extend Pt availability is to alloy it with more abundant metals such as nickel (Ni)…
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Conductive porous vanadium nitride/graphene composite as chemical anchor of polysulfides for lithium-sulfur batteries Open
Although the rechargeable lithium–sulfur battery is an advanced energy storage system, its practical implementation has been impeded by many issues, in particular the shuttle effect causing rapid capacity fade and low Coulombic efficiency.…
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Atomic weights of the elements 2013 (IUPAC Technical Report) Open
The biennial review of atomic-weight determinations and other cognate data has resulted in changes for the standard atomic weights of 19 elements. The standard atomic weights of four elements have been revised based on recent determination…
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Ultralong cycle stability of aqueous zinc-ion batteries with zinc vanadium oxide cathodes Open
Hierarchically porous zinc vanadium oxide cathodes contribute to high-rate and ultralong-life aqueous rechargeable zinc batteries.
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Mechanistic Insights into Electrochemical Nitrogen Reduction Reaction on Vanadium Nitride Nanoparticles Open
Renewable production of ammonia, a building block for most fertilizers, via the electrochemical nitrogen reduction reaction (ENRR) is desirable; however, a selective electrocatalyst is lacking. Here we show that vanadium nitride (VN) nanop…
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Recent progress in the phase-transition mechanism and modulation of vanadium dioxide materials Open
Metal-to-insulator transition (MIT) behaviors accompanied by a rapid reversible phase transition in vanadium dioxide (VO2) have gained substantial attention for investigations into various potential applications and obtaining good material…
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Catalytic Applications of Vanadium: A Mechanistic Perspective Open
The chemistry of vanadium has seen remarkable activity in the past 50 years. In the present review, reactions catalyzed by homogeneous and supported vanadium complexes from 2008 to 2018 are summarized and discussed. Particular attention is…
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A Perspective on the Selective Catalytic Reduction (SCR) of NO with NH<sub>3</sub> by Supported V<sub>2</sub>O<sub>5</sub>–WO<sub>3</sub>/TiO<sub>2</sub> Catalysts Open
We report the selective catalytic reduction (SCR) of NOx with NH3 to harmless N2 and H2O plays a crucial role in reducing highly undesirable NOx acid gas emissions from large utility boilers, industrial boilers, municipal waste plants, and…
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2D molybdenum and vanadium nitrides synthesized by ammoniation of 2D transition metal carbides (MXenes) Open
Synthesis of 2D transition metal nitrides can be achieved by ammoniation of carbide MXenes (Mo2CTxand V2CTx) at elevated temperatures.
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Two-Dimensional Vanadium Carbide (MXene) as Positive Electrode for Sodium-Ion Capacitors Open
Ion capacitors store energy through intercalation of cations into an electrode at a faster rate than in batteries and within a larger potential window. These devices reach a higher energy density compared to electrochemical double layer ca…
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Vanadium Oxide: Phase Diagrams, Structures, Synthesis, and Applications Open
Vanadium oxides with multioxidation states and various crystalline structures offer unique electrical, optical, optoelectronic and magnetic properties, which could be manipulated for various applications. For the past 30 years, significant…
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Anomalously low electronic thermal conductivity in metallic vanadium dioxide Open
Decoupling charge and heat transport In metals, electrons carry both charge and heat. As a consequence, electrical conductivity and the electronic contribution to the thermal conductivity are typically proportional to each other. Lee et al…
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Concentrated dual-cation electrolyte strategy for aqueous zinc-ion batteries Open
A dual-cation concentrated electrolyte has been developed to enable a stable Zn anode and a vanadium-oxide-based cathode for efficient aqueous Zn-ion batteries.
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Achieving Both High Voltage and High Capacity in Aqueous Zinc‐Ion Battery for Record High Energy Density Open
In this work, a high‐voltage output and long‐lifespan zinc/vanadium oxide bronze battery using a Co 0.247 V 2 O 5 ⋅0.944H 2 O nanobelt is developed. The high crystal architecture could enable fast and reversible Zn 2+ intercalation/deinter…
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V2O5 Nanospheres with Mixed Vanadium Valences as High Electrochemically Active Aqueous Zinc-Ion Battery Cathode Open
A V 4+ -V 2 O 5 cathode with mixed vanadium valences was prepared via a novel synthetic method using VOOH as the precursor, and its zinc-ion storage performance was evaluated. The products are hollow spheres consisting of nanoflakes. The V…
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Transition Metal‐Promoted V<sub>2</sub>CO<sub>2</sub> (MXenes): A New and Highly Active Catalyst for Hydrogen Evolution Reaction Open
Developing alternatives to precious Pt for hydrogen production from water splitting is central to the area of renewable energy. This work predicts extremely high catalytic activity of transition metal (Fe, Co, and Ni) promoted two‐dimensio…
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A bound reaction intermediate sheds light on the mechanism of nitrogenase Open
Sulfur steps aside for nitrogen Enzymatic conversion of molecular nitrogen to ammonia requires a dance of electrons and protons. The stage for that dance is the nitrogenase cofactor, a carefully constructed cluster of iron, sulfur, and car…
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Polymeric vanadyl species determine the low-temperature activity of V-based catalysts for the SCR of NO <sub> <i>x</i> </sub> with NH <sub>3</sub> Open
The coupling effect of polymeric vanadyl species greatly promotes the NH 3 -SCR de-NO x process over vanadia-based catalysts.
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The Significance of Lewis Acid Sites for the Selective Catalytic Reduction of Nitric Oxide on Vanadium‐Based Catalysts Open
The long debated reaction mechanisms of the selective catalytic reduction (SCR) of nitric oxide with ammonia (NH 3 ) on vanadium‐based catalysts rely on the involvement of Brønsted or Lewis acid sites. This issue has been clearly elucidate…
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The role of vanadium in biology Open
Biological functions of vanadium are based on both the vanadate–phosphate analogy and interactions of the oxidovanadium moiety with proteins.
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Review on Sol-Gel Synthesis of Perovskite and Oxide Nanomaterials Open
Sol-Gel is a low cost, well-established and flexible synthetic route to produce a wide range of micro- and nanostructures. Small variations in pH, temperature, precursors, time, pressure, atmosphere, among others, can lead to a wide family…
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A High Energy Density Vanadium Redox Flow Battery with 3 M Vanadium Electrolyte Open
In this paper, a high energy density vanadium redox battery employing a 3 M vanadium electrolyte is reported. To stabilise the highly supersaturated vanadium solutions, several additives were evaluated as possible stabilizing agents for th…
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Metallic Vanadium Disulfide Nanosheets as a Platform Material for Multifunctional Electrode Applications Open
Nanothick metallic transition metal dichalcogenides such as VS2 are essential building blocks for constructing next-generation electronic and energy-storage applications, as well as for exploring unique physical issues associated with the …
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Amorphous Cobalt Vanadium Oxide as a Highly Active Electrocatalyst for Oxygen Evolution Open
The water-splitting reaction provides a promising mechanism to store renewable energies in the form of hydrogen fuel. The oxidation half-reaction, the oxygen evolution reaction (OER), is a complex four-electron process that constitutes an …
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The Synthesis Process and Thermal Stability of V2C MXene Open
The effect of etching solution on the synthesis process of two-dimensional vanadium carbide (V2C MXene) was researched. Three etching solutions were used to etch ternary carbide V2AlC at 90 °C. The three solutions were: lithium fluoride + …
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Vanadium geochemistry in the biogeosphere –speciation, solid-solution interactions, and ecotoxicity Open
Vanadium is a metal that receives increasing attention due to its possible toxicity and its increased use in society, i.e. in high-grade steel and in vanadium redox-flow batteries. Already today, the global biogeochemical cycle of vanadium…
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Global biogeochemical cycle of vanadium Open
Significance Human emissions of vanadium to atmosphere exceed natural sources by a factor of 1.7 and are destined to rise dramatically as we switch to the use of heavy oils, tar sands, and bitumen as combustion sources. Breathing vanadium-…
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Quantum Coherence Times Enhancement in Vanadium(IV)-based Potential Molecular Qubits: the Key Role of the Vanadyl Moiety Open
In the search for long-lived quantum coherence in spin systems, vanadium(IV) complexes have shown record phase memory times among molecular systems. When nuclear spin-free ligands are employed, vanadium(IV) complexes can show at low temper…
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Vanadium Dioxide Cathodes for High‐Rate Photo‐Rechargeable Zinc‐Ion Batteries Open
Photovoltaics are an important source of renewable energy, but due to the intermittent nature of insolation, solar cells usually need to be connected to rechargeable batteries, electrochemical capacitors or other energy storage devices, wh…
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Inhibition of Vanadium Cathodes Dissolution in Aqueous Zn‐Ion Batteries Open
Aqueous zinc‐ion batteries (AZIBs) have experienced a rapid surge in popularity, as evident from the extensive research with over 30 000 articles published in the past 5 years. Previous studies on AZIBs have showcased impressive long‐cycle…