Vanadium carbide
View article: 2D molybdenum and vanadium nitrides synthesized by ammoniation of 2D transition metal carbides (MXenes)
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 for simultaneously tailoring the hydrogen sorption thermodynamics and kinetics of magnesium hydride Open
Magnesium hydride (MgH2) is a potential material for solid-state hydrogen storage. However, the thermodynamic and kinetic properties are far from practical application in the current stage. In this work, two-dimensional vanadium carbide (V…
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Titanium carbide-decorated graphite felt as high performance negative electrode in vanadium redox flow batteries Open
Binder free titanium carbide decorated graphite felt as high performance negative electrode in vanadium redox flow battery.
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Single-Atom-Substituted Mo<sub>2</sub>C<i>T</i><sub><i>x</i></sub>:Fe-Layered Carbide for Selective Oxygen Reduction to Hydrogen Peroxide: Tracking the Evolution of the MXene Phase Open
This work critically assesses the electrocatalytic activity, stability, and nature of the active phase of a two-dimensional molybdenum carbide (MXene) with single-atomic iron sites, Mo2CTx:Fe (Tx are surface terminating groups O, OH, and F…
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Vanadium‐modified hard carbon spheres with sufficient pseudographitic domains as high‐performance anode for sodium‐ion batteries Open
Hard carbons are promising anode materials for sodium‐ion batteries. To meet practical requirements, searching for durable and conductive carbon with a stable interface is of great importance. Here, we prepare a series of vanadium‐modified…
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The Fe–V Cofactor of Vanadium Nitrogenase Contains an Interstitial Carbon Atom Open
The first direct evidence is provided for the presence of an interstitial carbide in the FeV cofactor of Azotobacter vinelandii vanadium nitrogenase. As for our identification of the central carbide in the FeMo cofactor, we employed Fe K…
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Vanadium Carbide (V4C3) MXene as an Efficient Anode for Li-Ion and Na-Ion Batteries Open
Li-ion batteries (LIBs) and Na-ion batteries (SIBs) are deemed green and efficient electrochemical energy storage and generation devices; meanwhile, acquiring a competent anode remains a serious challenge. Herein, the density-functional th…
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Density functional theory calculations of iron - vanadium carbide interfaces and the effect of hydrogen Open
According to recent experimental research, vanadium-carbide precipitates can improve hydrogen resistance and hardness in steels. In the present article, density functional theory calculations are performed to study the structure and energe…
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Niobium carbide nanofibers as a versatile precursor for high power supercapacitor and high energy battery electrodes Open
Electrospun niobium carbide/carbon nanofibers are a facile precursor to derive highly nanoporous carbide-derived carbon for supercapacitor applications, or niobium pentoxide/carbon for battery electrodes.
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Production and Properties of High Entropy Carbide Based Hardmetals Open
Dense, high-entropy carbide cobalt-bonded hardmetals with two different compositions, namely (Hf-Ta-Ti-Nb-V)C-19.2 vol% Co and (Ta-Ti-Nb-V-W)C-19.2 vol% Co, were successfully manufactured by gas pressure sintering (SinterHIP) at 1400 °C an…
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Tuning the reactivity of molybdenum (oxy)carbide catalysts by the carburization degree: CO<sub>2</sub> reduction and anisole hydrodeoxygenation Open
Structure-performance relations for molybdenum (oxy)carbide catalysts evaluated for CO2 hydrogenation and anisole hydrodeoxygenation.
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Experimental and theoretical studies on two-dimensional vanadium carbide hybrid nanomaterials derived from V4AlC3 as excellent catalyst for MgH2 Open
Hydrogen is considered one of the most ideal future energy carriers. The safe storage and convenient transportation of hydrogen are key factors for the utilization of hydrogen energy. In the current investigation, two-dimensional vanadium …
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Vanadium pentoxide/carbide-derived carbon core–shell hybrid particles for high performance electrochemical energy storage Open
V2O5/carbide-derived carbon core–shell hybrid electrodes can be synthesized using vanadium carbide as the precursor. The resulting hybrid material shows high energy and power ratings for electrochemical energy storage.
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Laser powder bed fusion of functionally graded bi-materials: Role of VC on functionalizing AISI H13 tool steel Open
This study investigates the feasibility of fabricating defect-free functionally graded bi-materials (FGMs) with enhanced wear resistance via incorporation of vanadium carbide (VC) into H13 tool steel. Three distinct composite powders conta…
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Wear and Corrosion Resistance of Chromium–Vanadium Carbide Coatings Produced via Thermo-Reactive Deposition Open
Chromium carbide, vanadium carbide, and chromium–vanadium mixture coatings were deposited on AISI D2 steel via the thermo-reactive deposition/diffusion (TRD) technique. The carbides were obtained from a salt bath composed of molten borax, …
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Control of spintronic and electronic properties of bimetallic and vacancy-ordered vanadium carbide MXenes <i>via</i> surface functionalization Open
Control of spintronic and electronic properties of vanadium carbide i-MXenes via surface functionalization.
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First-principles study of vanadium carbides as electrocatalysts for hydrogen and oxygen evolution reactions Open
The origin of excellent performance of vanadium carbides (VC and V8V7) in hydrogen and oxygen evolution reactions (HER and OER) is revealed by first-principles calculations. It is found that the underlying mechanisms in HER/OER processes a…
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Role of CO2 During Oxidative Dehydrogenation of Propane Over Bulk and Activated-Carbon Supported Cerium and Vanadium Based Catalysts Open
CeO 2 , V 2 O 5 and CeVO 4 were synthesised as bulk oxides, or deposited over activated carbon, characterized by XRD, HRTEM, CO 2 -TPO, C 3 H 8 -TPR, DRIFTS and Raman techniques and tested in propane oxidative dehydrogenation using CO 2 . …
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In Situ Vanadium‐Deficient Engineering of V<sub>2</sub>C MXene: A Pathway to Enhanced Zinc‐Ion Batteries Open
This research examines vanadium‐deficient V 2 C MXene, a two‐dimensional (2D) vanadium carbide with exceptional electrochemical properties for rechargeable zinc‐ion batteries. Through a meticulous etching process, a V‐deficient, porous arc…
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Influence of Vanadium and Niobium Carbide Particles on the Mechanical, Microstructural, and Physical Properties of AA6061 Aluminum-Based Mono- and Hybrid Composite Using FSP Open
The ceramic particle reinforcement process is one of the most utilized techniques to enhance the metal surface. The current investigation uses vanadium and niobium carbides to reinforce the AA6061 alloy using the friction stir process (FSP…
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A Novel Comparative Study Based on the Economic Feasibility of the Ceramic Nanoparticles Role’s in Improving the Properties of the AA5250 Nanocomposites Open
In this paper, AA5250 aluminum sheets are reinforced with boron nitride (BN), silicon carbide (SiC), aluminum oxide (Al2O3), and vanadium carbide (VC). The nanocomposites metal matrix are manufactured using friction stir processing (FSP). …
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Impact of Hard and Soft Reinforcements on the Microstructure, Mechanical, and Physical Properties of the Surface Composite Matrix Manufactured by Friction Stir Processing Open
This work studies the effect of incorporating a mix of reinforcement particles of a hard and soft nature on the microstructure and mechanical and physical properties of a high-strength aluminum alloy, AA7075. A friction stir processing tec…
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Self-driven carbon atom implantation into fullerene embedding metal–carbon cluster Open
Hundreds of members have been synthesized and versatile applications have been promised for endofullerenes (EFs) in the past 30 y. However, the formation mechanism of EFs is still a long-standing puzzle to chemists, especially the mechanis…
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Microstructure And Properties Of WC-Co HVAF Coatings Obtained From Standard, Superfine And Modified By Sub-Micrometric Carbide Powders Open
In this paper, microstructure and some properties of various coatings based on WC-Co obtained by the High Velocity Air Fuel technique are discussed. Initially, two WC-Co 83-17 powders of standard and superfine size were examined as a feeds…
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Influencing Microstructure of Vanadium Carbide Reinforced FeCrVC Hardfacing during Gas Metal Arc Welding Open
Vanadium carbide (VC) reinforced FeCrVC hardfacings have become important to improve the lifetime of tools suffering abrasive and impact loads. This is because the microstructural properties of such hardfacings enable the primary VCs to ac…
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Carbide-Derived Carbon by Electrochemical Etching of Vanadium Carbides Open
Carbide-derived Carbon (CDC) has been demonstrated to be an excellent electrode material for electrochemical devices including supercapacitors due to its chemical and electrochemical stability, large specific surface area and controllable …
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Reactivity of vanadium oxytrichloride with β-diketones and diesters as precursors for vanadium nitride and carbide Open
Vanadium(V) oxytrichloride was reacted with 2,4-pentanedione, diethyl malonate, and diethyl succinate under inert conditions, forming compounds: dichloro(oxo)(2,4-pentanedione) vanadium(V) [1], dichloro(oxo)(diethyl malonate) vanadium(IV) …
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Wear and Friction Evaluation of Different Tool Steels for Hot Stamping Open
The aim of this work is to investigate the durability of tool steels for hot stamping by comparing the wear resistance of three hot work tool steels. Friction and wear behaviours of different tool steels sliding against a 22MnB5 uncoated s…
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Reaction-dominated combustion control of ammonium perchlorate-based composites by layered V2C MXene Open
Reactive combustion catalysts (RCCs) are emerging materials for the combustion control of ammonium perchlorate (AP)-based propellants owing to their unique ability to control burning rates, high atomic utilization, and high-energy output. …
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Synthesis of Vanadium Carbide by Mechanical Activation Assisted Carbothermic Reduction Open
Vanadium carbide is known, for its hardness and other unique properties, as a refractory material. The synthesis of vanadium carbide is always associated with the utilization of expensive active metals, such as aluminum, calcium and magnes…