Πλοήγηση ανά Θέμα "Binary alloys"
Αποτελέσματα 1-20 από 24
-
Atomic Scale Mechanisms of Multimode Oxide Growth on Nickel-Chromium Alloy: Direct in Situ Observation of the Initial Oxide Nucleation and Growth
(2021)The initial growth mode of oxide on alloy plays a decisive role in the development of protective oxide scales on metals and alloys, which is critical for their functionality for high temperature applications. However, the ... -
Bifunctional catalysts for overall water splitting: CoNi oxyhydroxide nanosheets electrodeposited on titanium sheets
(2019)In this work, CoNi oxyhydroxide nanosheets [CoNi-OOH-30(40)] are synthesized, through two simple steps, as efficient bifunctional catalysts in alkaline media. First, a shape-controlled CoNi-X alloy (X denotes electrodeposition ... -
Bimetallic Ni‒Co phosphide nanosheets self-supported on nickel foam as high-performance electrocatalyst for hydrogen evolution reaction
(2019)In this work, bimetallic nickel-cobalt phosphide (Ni-Co-P/NF) self-supported on nickel foam (NF) is synthesized for hydrogen evolution reaction (HER). A two-step method of electrodeposition with subsequently low-temperature ... -
Chronopotentiometric approach of CO2 reduction in molten carbonates
(2017)Carbon capture and valorization is a new route increasingly discussed to reduce greenhouse gas emissions. One of the paths foreseen for CO2 valorization is its transformation into fuels by electrochemical reduction of ... -
A density functional theory approach to the effects of C and N substitution at the B-site of the first boride MAX phase Nb2SB
(2021)MAX phases have diverse physical properties and as such are an important research field linked to numerous applications. The recent addition of boride member to the MAX family has further extended the physical properties ... -
Electrocatalytic reduction of nitrogen on FeAg/Si for ammonia synthesis: A simple strategy for continuous regulation of faradaic efficiency by controlling H+ ions transfer rate
(2021)Electrocatalytic nitrogen reduction offers a dream way to produce active nitrogen for agriculture and high-energy-dense carbon-free fuels for our blue planet. However, it suffers from extremely low faradaic efficiency ... -
Enhanced oxygen reduction and methanol oxidation reaction over self-assembled Pt-M (M = Co, Ni) nanoflowers
(2022)Herein, we introduce a facile approach to synthesize a unique class of Pt-M (M = Ni, Co) catalysts with a nanoflower structure for boosting both oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR). By ... -
Evidence of Au – Hg gilding process in post byzantine ecclesiastical silverwares (Chalices) of eastern Thessaly by PXRF
(2020)Silver and gold alloys have been widely applied in the making of precious objects during the byzantine and post byzantine eras. A major category is the “ecclesiastical silver”, which was used in the celebration of the ... -
Excavated and dendritic Pt-Co nanocubes as efficient ethylene glycol and glycerol oxidation electrocatalysts
(2019)Noble metal electrocatalysts with excavated and dendritic architectures have recently attracted growing attention for their large accessible surface areas and high density of under-coordinated atoms. However, it is a tough ... -
Facile synthesis of bimetallic Pt-Pd symmetry-broken concave nanocubes and their enhanced activity toward oxygen reduction reaction
(2019)In the present work, we are reporting a facile one-pot synthesis route to get Pt-Pd symmetry-broken concave nanocube (SBCNCs) structures in N, N-dimethylformamide (DMF) solutions under the effect of iodide ions and Poly ... -
Formation, doping, and lithium incorporation in LiFePO4
(2022)For over 25 years, lithium iron phosphate (LiFePO4) has been a material of interest for Li-ion batteries as it is environmentally benign, low cost, and structurally stable. Here, we employed density functional theory ... -
Glucose electrooxidation reaction in presence of dopamine and uric acid over ketjenblack carbon supported PdCo electrocatalyst
(2019)Herein, palladium-cobalt supported on ketjenblack (PCKB) electrocatalyst is synthesized and tested i) for the reaction of glucose electrooxidation (GOR) in presence of dopamine and uric acid and ii) for the simultaneous ... -
Hierarchically skeletal multi-layered Pt-Ni nanocrystals for highly efficient oxygen reduction and methanol oxidation reactions
(2021)Pt based materials are the most efficient electrocatalysts for the oxygen reduction reaction (ORR) and methanol oxidation reaction (MOR) in fuel cells. Maximizing the utilization of Pt based materials by modulating their ... -
Highly stable Pt-Co nanodendrite in nanoframe with Pt skin structured catalyst for oxygen reduction electrocatalysis
(2021)A novel self-etched engineering of Pt-Co nanodendrite in nanoframe (Pt-Co ND-NF) synthesized through a simple one-pot approach, for the first-time. The modulation mechanism of Pt-Co ND-NF formation is established by ... -
Input on the Measurement and Comprehension of CO2 Solubility in Molten Alkali Carbonates in View of Its Valorization
(2020)As the capture and valorization of CO2 in molten carbonates is nowadays becoming a strategic energy topic, the need of accurate solubility measurements of such molecule is becoming compulsory. This study provides a new set ... -
Lithium-sulfur battery cathodes made of porous biochar support CoFe@NC metal nanoparticles derived from Prussian blue analogues
(2019)Li–S batteries are considered as candidates for the next-generation secondary batteries due to their high energy density (~ 1672 mAh g−1). However, poor conductivity and shuttle effect have become the major obstacles for ... -
Mechanical performance of laser spot-welded joints in Al-Al/Cu solar thermal absorbers
(2018)The mechanical performance of laser spot welded joints used in Al-Cu and Al-Al thermal absorber systems has been evaluated under different laser welding and mechanical loading conditions. In the experimental investigation, ... -
One-pot synthesized boron-doped RhFe alloy with enhanced catalytic performance for hydrogen evolution reaction
(2018)Electrochemical water splitting has been highly recognized as a clean and sustainable method to produce hydrogen with high purity. An one-pot method to synthesize boron-doped RhFe alloy with excellent catalytic performance ... -
Oxygen reduction and hydrogen oxidation reaction on novel carbon supported PdxIry electrocatalysts
(2018)In the present work Vulcan XC-72 carbon supported Pd, Ir and PdxIry (with x:y atomic ratios of 3:1, 1:1, 1:3) electrocatalysts are thoroughly investigated for the reactions of hydrogen oxidation (HOR) and oxygen reduction ... -
Ranking eu agricultural sectors under the prism of alternative widths on window dea
(2021)Providing food security while preserving natural resources and reducing the use of production factors (land, labor, and capital), is a critical challenge for EU agricultural sectors in the 21st century. Sustainable Development ...