Dynamic and structural stability of cubic vanadium nitride
5 HR-XTEM images and SAED patterns are acquired in a JEOL 2100 transmission electron microscope equipped with a LaB6 crystal field-emission source operated at 200 keV. Cross-sectional specimens are prepared by …
AI-mottagningA novel method of preparing vanadium-based precursors and …
Vanadium nitride is widely used because of its excellent properties. The existing production methods are affected by the problems of complex preparation for the vanadium source, high temperature, and low N content. In this work, a wide range of vanadium solutions were used as the vanadium source to prepare
AI-mottagningQuantification of Active Sites and Elucidation of the Reaction ...
Author Manuscript Title: Quantification of Active Sites and Elucidation of Reaction Mechanism of Elec- trochemical Nitrogen Reduction Reaction on Vanadium Nitride Authors: Xuan Yang; Shyam Kattel; Jared Nash; Xiaoxia Chang; Jihong Lee; Yushan Yan; Jingguang Chen; Bingjun Xu, Ph.D. This is the author manuscript accepted for publication and has undergone full peer
AI-mottagning(PDF) Anode Material of Vanadium Nitride for ...
As a negative electrode material under aqueous alkaline test conditions, vanadium nitride has excellent properties such as a large potential window (1.2 V), good electronic conductivity, and high ...
AI-mottagningVanadium nitride | NV | CID 90570
Vanadium damages alveolar macrophages by decreasing the macrophage membrane integrity, thus impairing the cells'' phagocytotic ability and viability. The pentavalent form of vanadium, vanadate, is a potent inhibitor of …
AI-mottagningA novel method of preparing vanadium-based precursors and …
Vanadium nitride is widely used because of its excellent properties. The existing production methods are affected by the problems of complex preparation for the vanadium source, high temperature, and low N content. In this work, a wide range of vanadium solutions were used as the vanadium source to prepare vanadium nitride with high N content.
AI-mottagningStudy on reaction mechanism for the synthesis of vanadium nitride …
In recent years, high-strength low alloy steel has gained significant application in industry due to its special attributes such as heightened strength and toughness, as well as highlighted economic value [1, 2].This can largely be attributed to the incorporation of transition metal nitrides [3, 4].Vanadium nitride (VN), a typical transition metal nitride, exhibits …
AI-mottagningWebElements Periodic Table » Vanadium » vanadium nitride
The table shows element percentages for VN (vanadium nitride). Element % N: 21.57: V: 78.43: Isotope pattern for VN. The chart below shows the calculated isotope pattern for the formula VN with the most intense ion set to 100%. References.
AI-mottagningMetallic mesocrystal nanosheets of vanadium nitride for high ...
Transition metal nitrides (TMNs) are of particular interest by virtue of their synergic advantages of superior electrical conductivity, excellent environmental durability and high reaction selectivity, yet it is difficult to achieve flexible design and operation. Herein, mesocrystal nanosheets (MCNSs) of vanadium nitride (VN) are synthesized via a confined-growth route …
AI-mottagningNovel Hybrid Nanoparticles of Vanadium …
Abstract Hybrid materials of vanadium nitride and porous carbon nanoparticles (VN/PCNPs) were fabricated by a facile pyrolysis process of vanadium pentoxide (V2O5) xerogel and melamine at relatively low …
AI-mottagningVanadium nitride in low-alloy low-carbon steels
Vanadium nitride V3N has a hexagonal lattice. The composition varies within limits of V3N and V2N. The homogeneity range of VaN is 8.4-11.9%. The lattice constants are a =2.835 and c = 4.541 A, with c/a = 1.60 [7]. The presence of nitrogen and carbon atoms in the steel results in the formation of vanadium earbo- ...
AI-mottagningElectrochemical and Chemical Instability of Vanadium Nitride in …
Vanadium nitride: VN has been extensively used in various electrochemical applications such as in the field of electrochemical nitrogen reduction reaction, electrochemical …
AI-mottagningPRECIPITATION AND GRAIN REFINEMENT IN VANADIUM
to vanadium nitride. Thus, it was concluded that the main factor governing the formation of intragranular ferrite is the presence of VN precipitates in austenite which can develop coherent, low
AI-mottagningvanadium(III) nitride | H3NV
ChemSpider record containing structure, synonyms, properties, vendors and database links for vanadium(III) nitride
AI-mottagningLow temperature chemical vapor deposition of ...
The growth of vanadium nitride films is performed in a turbo-pumped chamber of high vacuum construction as described elsewhere. 13,14 The TDMAV precursor is kept in a reservoir maintained at room temperature, where it sublimes and is carried by an Ar carrier gas that flows through the source container to deliver the sublimed precursor to the ...
AI-mottagningEnergy Storage Mechanism of Vanadium Nitride via Intercalating ...
In this equation, VN x O y ||OH − represents the forming of electrical double layer and VN x O y-OH means the Faraday reaction between OH − and VN x O y can be seen that both are directly related with hydroxyl ions adsorbed on "non-specific sites". [11-13] Some …
AI-mottagningA novel method of preparing vanadium-based …
1 Introduction Transition metal nitrides are attracting increasing focus owing to their excellent physical and chemical properties. 1–4 Vanadium nitride is widely used in alloy components, coatings, battery materials, supercapacitor …
AI-mottagningNovel insights into the charge storage mechanism in …
The reported surface and volumetric capacitance values (1.2 F cm −2 and >700 F cm −3, respectively) of the 16 μm-thick vanadium nitride film obtained via production-compatible microelectronic deposition methods compete well with those of cutting-edge transition metal oxide/nitride materials, and exceed those of standard carbon electrodes. An arsenal of …
AI-mottagningEnergy Storage Mechanism of Vanadium Nitride via Intercalating ...
In particular, vanadium nitride (VN), as a typical pseudocapacitive anode material, has a wide operation potential (0 V ~ ‐1.2 V) and high theoretical specific capacitance (1, 350 F/g), which is ...
AI-mottagningThe vanadium-nitrogen system: a review
The Vanadium-Nitrogen System: A Review O.N. CARLSON, J. E SMITH, and R. H. NAFZIGER This paper is a critical review of the available phase equilibria, crystallographic, and …
AI-mottagningvanadium nitride
Notes. Go To: Top Data from NIST Standard Reference Database 69: NIST Chemistry WebBook The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment.
AI-mottagningImproving the electrophilicity of nitrogen on nitrogen-doped …
Nitrogen-doped carbon (NC) demonstrates great promise as an alternative electrocatalyst for the oxygen reduction reaction (ORR). The C atoms next to the N dopant have been identified as the exact active sites, and optimizing the electronic structure of N has a great effect on the activity. In this study, a novel VN@NC nanocomposite consisting of a vanadium …
AI-mottagningVanadium nitride for aqueous supercapacitors: a topic review
Supercapacitors have emerged as the most attractive complementary devices between batteries and conventional capacitors, while a high performance electrode material is key to their energy …
AI-mottagningGas-based reduction and nitridation for synthesis of vanadium nitride ...
VN can be prepared in various ways. Conventionally, VN is synthesized by carbothermal reduction of vanadium oxide or direct nitridation of pure metallic vanadium [12, 13].However, owing to the slow diffusion rate of solid–solid reaction, the former method usually requires a high temperature (above 1473 K) and a long reaction time, and large-scale …
AI-mottagningThin films of pure vanadium nitride: Evidence for anomalous non ...
An impressive gravimetric capacitance of 1300 F g −1 (surface capacitance ∼3.3 mF cm −2) reported by Choi et al., 2006 for nanosized vanadium nitride has stimulated considerable interest in vanadium nitride as a potential electrode material for energy storing systems – supercapacitors.The postulated mechanism of charge storage in vanadium nitride …
AI-mottagningNew Production Route for Vanadium Nitride Master Alloy
A vanadium nitride alloy can be used as an alloying source of nitrogen and vanadium elements in high-strength steel. In this study, comprehensive and systematic experiments were conducted to optimize the process conditions for producing a vanadium nitride alloy from the starting materials (V2O5 and Fe2O3). The reduction and nitridation behaviors of …
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