core shell hollow structured iridium nickel nitride
Template-Based Synthesis of Aluminum Nitride Hollow
23 core-shell nanofibers as well as microtube-in-microtube ZnAl 2O 4 assemblies24 were also fabricated successfully by combining electrospinning and ALD processes. To the best of our knowledge synthesis of AlN hollow nanostructures by combining electrospinning and ALD has not yet been reported. Here we report on the template-based synthesis
Get PriceInto the carbon A matter of core and shell in advanced
The authors carried out a comparative work by removing either the surface metal dopant or by destroying the core–shell structure. They noted a synergy between the metal dopant and the inner NiFe NPs with the latter modifying the electronic structure of the shell by acting as an electron receptor. 30 30. T.
Get PriceReducing Iridium Loading in Oxygen Evolution Reaction
Several group VIII transition metal (Fe Co and Ni) nitrides are studied as core materials with Ir/Fe 4 N core–shell particles showing enhancement in both OER activity and stability. In situ X-ray absorption fine structure measurements are used to determine the structure and stability of the core–shell catalysts under OER conditions.
Get PriceIET Digital Library Synthesis of graphitic carbon nitride
Dec 18 2019 · In this work graphitic carbon nitride nanosheets decorated like nickel oxide microspheres (NiO/g-C3N4 Ni/CN) were successfully synthesised by a simple hydrothermal method. The morphologies of the as-prepared samples were analysed by scanning electron microscopy and the diameter of the microspheres was found to be about 2.5 μm. At an optimum working temperature of
Get PriceDesigning Electrocatalysts for the Hydrogen Evolution
"Core-Shell Hollow-Structured Iridium-Nickel Nitride Nanoparticles for the Hydrogen Evolution Reaction" J. Mater. Chem. A 2014 2 . (work at BNL) Metal Phosphides "Ternery Interstitial Metal Phosphides" Stablized Metal Carbides
Get PriceNon-noble metal-nitride based electrocatalysts for high
Nov 08 2019 · The formation of a metal nitride-metal oxide/oxy(hydroxide) core-shell structure may also facilitate electron transfer from the NiFeN core to the oxidized species (Supplementary Fig. 29).
Get PriceCore–shell hollow-structured iridium–nickel nitride
Abstract We synthesized core–shell hollow-structured iridium–nickel nitride nanoparticles and then evaluated their activity in the hydrogen evolution reaction (HER). Coupling Ni nitrides with the IrNi cores enhances the HER activity of Ir shells to a
Get PriceElectrodeposition of Iridium-Nickel Thin Films on Copper
The iridium-nickel alloy is of particular interest because of the complete miscibility of iridium and nickel and the absence of intermetallic compounds in the binary phase diagram. Kuttiyiel et al. (21) synthesised core-shell hollow-structured Ir–Ni–N nanoparticles and then evaluated their HER activity.
Get PriceLigand‐Free Platinum Nanoparticles Encapsulated in a
You Na Ko Yun Chan Kang Seung Bin Park Continuous one-pot synthesis of sandwich structured core–shell particles and transformation to yolk–shell particles Chemical Communications 10.1039/c3cc41355a 49 37 (3884) (2013).
Get PriceElectrodeposition of Iridium-Nickel Thin Films on Copper
The iridium-nickel alloy is of particular interest because of the complete miscibility of iridium and nickel and the absence of intermetallic compounds in the binary phase diagram. Kuttiyiel et al. (21) synthesised core-shell hollow-structured Ir–Ni–N nanoparticles and then evaluated their HER activity.
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Deep eutectic solvent approach towards nickel/nickel nitride nanocomposites Iridium-based nanowires as highly active oxygen evolution reaction electrocatalysts Hydrocarbon catalyzed-selective catalytic reduction catalysts using core-shell atomic layer deposited CeO2 and ZrO2
Get PriceBimetallic iron-iridium alloy nanoparticles supported on
Dec 05 2020 · Core-shell structured Ni 12 P 5 /Ni 3 (PO 4) 2 hollow spheres as bifunctional and efficient electrocatalysts for overall water electrolysis. Core-shell hollow-structured iridium-nickel nitride nanoparticles for the hydrogen evolution reaction. J. Mater. Chem. A 2 (2014) pp. 10.1039/c3ta14301e.
Get PriceDesign of NiO Flakes CoMoO 4 Nanosheets Core-Shell
As typical electrode materials for supercapacitors low specific capacitance and insufficient cycling stability of transition metal oxides (TMOs) are still the problems that need to be solved. Design of core-shell structure is considered as an effective method for preparation of high-performance electrode materials. In this work NiO flakes CoMoO4 nanosheets/Ni foam (NiO flakes CoMoO4 NSs/NF
Get PricePit (nuclear weapon)Wikipedia
The pit named after the hard core found in fruits such as peaches and apricots is the core of an implosion nuclear weaponthe fissile material and any neutron reflector or tamper bonded to it. Some weapons tested during the 1950s used pits made with U-235 alone or in composite with plutonium but all-plutonium pits are the smallest in diameter and have been the standard since the early
Get PriceEnergy dissipation mechanisms in hollow Cambridge Core
If this is the first time you use this feature you will be asked to authorise Cambridge Core to connect with your
Get Priceaccount. Find out more about sending content to Google Drive . Energy dissipation mechanisms in hollow metallic microlattices USA1Nitride stabilized core/shell
Nitride stabilized metal (M or Pt(M)) nanoparticles and methods for their manufacture are disclosed. In one embodiment the metal nanoparticles have a nonporous noble metal shell with a nitride-stabilized non-noble metal core. The nitride-stabilized core provides a stabilizing effect under high oxidizing conditions suppressing the noble metal dissolution during potential cycling.
Get PriceIridiumPeriodic Table
Hydrogen is a chemical element with atomic number 1 which means there are 1 protons and 1 electrons in the atomic structure.The chemical symbol for Hydrogen is H. With a standard atomic weight of circa 1.008 hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe constituting roughly 75 of all baryonic mass.
Get PriceSynergizing aliovalent doping and interface in
NiV email protected heterostructured nanosheet arrays was proposed.. An in-situ electrochemical surface reconfiguration (ESR) on Ni 3 email protected 3 VN takes place.. Aliovalent V-doping and abundant core-shell interfaces lead to a high OER activity. • email protected delivers an ultralow overpotential of 233 mV at 50 mA cm –2. DFT calculations were performed to identify the
Get PriceIET Digital Library Synthesis of graphitic carbon nitride
Dec 18 2019 · In this work graphitic carbon nitride nanosheets decorated like nickel oxide microspheres (NiO/g-C3N4 Ni/CN) were successfully synthesised by a simple hydrothermal method. The morphologies of the as-prepared samples were analysed by scanning electron microscopy and the diameter of the microspheres was found to be about 2.5 μm. At an optimum working temperature of
Get PriceCdSe/ZnS core-shell type quantum dots Sigma-Aldrich
60 matches found for CdSe/ZnS core-shell type quantum dots Advanced Search Structure Search Sort By Relevance Name ↑ Name ↓ Base Name ↑ Base Name ↓ Formula Weight ↑ Formula Weight ↓
Get PriceDesigning Electrocatalysts for the Hydrogen Evolution
"Core-Shell Hollow-Structured Iridium-Nickel Nitride Nanoparticles for the Hydrogen Evolution Reaction" J. Mater. Chem. A 2014 2 . (work at BNL) Metal Phosphides "Ternery Interstitial Metal Phosphides" Stablized Metal Carbides
Get PriceElectrodeposition of Iridium-Nickel Thin Films on Copper
The iridium-nickel alloy is of particular interest because of the complete miscibility of iridium and nickel and the absence of intermetallic compounds in the binary phase diagram. Kuttiyiel et al. (21) synthesised core-shell hollow-structured Ir–Ni–N nanoparticles and then evaluated their HER activity.
Get PricePt monolayer shell on nitrided alloy core — A path to
The alloyed AuNi nanoparticles made the Pt shell more catalytically active for the ORR than the core–shell structured AuNi nanoparticles. The Pt monolayer more » supported on the alloyed AuNi nanoparticles showed the Pt mass and specific activities as high as 1.52 A mg –1 and 1.18 mA cm –2 respectively with almost no loss over 5 000
Get PriceDopant-Assisted Control of the Crystallite Domain Size in
The IrCuM shell abounding in small crystalline domains derived from the large lattice mismatch between the core and shell would lead to the formation of a hollow structure composed of aggregates multiple grains of IrCuM alloy which eventually would be transformed into hollow aggregates of loosely knit IrO 2 a-IrO x domains after OER operation as illustrated in Figure 1.
Get PriceTemplate-Based Synthesis of Aluminum Nitride Hollow
23 core-shell nanofibers as well as microtube-in-microtube ZnAl 2O 4 assemblies24 were also fabricated successfully by combining electrospinning and ALD processes. To the best of our knowledge synthesis of AlN hollow nanostructures by combining electrospinning and ALD has not yet been reported. Here we report on the template-based synthesis
Get PriceEngineering stable electrocatalysts by synergistic
Dec 16 2019 · The exceptional durability of fully coated materials highlights the potential of core–shell architectures using earth-abundant transition metal carbide (TMC) and nitride (TMN) cores for future
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