Results 61 to 70 of about 88,937 (317)
Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework
Advanced Functional Materials, EarlyView.The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu +13 more
wiley +1 more source
Development of cost-effective scrap-tolerant bulk-scale high entropy alloys
Journal of Alloys and Metallurgical SystemsDeveloping bulk high entropy alloys (HEAs) with good strength and ductility combinations is challenging. Many of the currently reported HEAs are prepared from pure metals.
Rahul Kumar +4 more
doaj +1 more source
Influence of dispersion aluminum powder on the burning rate of mixed solid fuel
MATEC Web of Conferences, 2018 In work results of experimental study of influence dispersion of metal powder on burning rate in mixed solid fuel are provided. As metal fuel used additive of aluminum of different type depending on dispersion of powder.
Zolotorev Nikolay +2 more
doaj +1 more source
Metal-Supported Solid Oxide Fuel Cells [PDF]
Electrochemical and Solid-State Letters, 2003 Low cost, colloidal deposition methods have been utilized to produce novel solid oxide fuel cell structures on metal alloy support electrodes. YSZ films were deposited on iron-chrome supports on top of a thin Ni/YSZ catalytic layer, and sintered at 1350 degrees C, in a reducing atmosphere.
Villarreal, I. +5 more
openaire +2 more sources
Precious Metal Recovery from Fuel Cell MEA's [PDF]
, 2004 In 2003, Engelhard Corporation received a DOE award to develop a cost-effective, environmentally friendly approach to recover Pt from fuel cell membrane electrode assemblies (MEA’s).
Shore, Lawrence
core
Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina
Advanced Functional Materials, EarlyView.Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand +5 more
wiley +1 more source
Yuanzineng kexue jishuPassive shutdown procedures can be initiated by the Curie point passive shutdown device, which is a sophisticated reactor safety mechanism that augments the coolant temperature at the core outlet to ensure safety.
LI Xinyu, ZHANG Xisi, XUE Fangyuan, LIU Yizhe
doaj +1 more source
Addition Effect of Fluoride Compounds for Zr Electrorefining in LiCl-KCl Molten Salts
International Journal of Electrochemical Science, 2016 The effect of fluoride compounds on Zr electrorefining is investigated for Zirlo cladding tubes in LiCl- KCl based molten salts. Cyclic voltammetric curves exhibit a modification of electrochemical behaviors of Zr ions from a two-step reduction process ...
Chang Hwa Lee +6 more
doaj +1 more source
Break-down of Losses in High Performing Metal-Supported Solid Oxide Fuel Cells [PDF]
, 2012 Metal supported SOFC designs offer competitive advantages such as reduced material costs and improved mechanical robustness. On the other hand, disadvantages might arise due to possible corrosion of the porous metal parts during processing and operation ...
T. Klemensø +11 more
core +1 more source
Advanced Functional Materials, EarlyView.Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum +5 more
wiley +1 more source