Results 111 to 120 of about 846,225 (353)

Short O-O separation in layered oxide Na0.67CoO2 enables an ultrafast oxygen evolution reaction. [PDF]

, 2019
The layered oxide Na0.67CoO2 with Na+ occupying trigonal prismatic sites between CoO2 layers exhibits a remarkably high room temperature oxygen evolution reaction (OER) activity in alkaline solution.
Dolocan, Andrei, Goodenough, John B, Lei, Ming, Li, Yutao, Lü, Xujie, Park, Kyusung, Wang, Hao, Wu, Jinpeng, Wu, Nan, Xin, Sen, Yang, Wanli   +10 more
core  

Effect of Laser Deoxidation on Adhesive‐Bonded Aluminum in an Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
This study investigates laser ablation of aluminum under oxygen‐free conditions. The goal is to produce oxide‐free substrates that enable improved adhesive bonding with epoxy. Optimized laser parameters (90% overlap, 300 µJ) combined with oxide‐free substrates result in the highest tensile strength of the adhesive bond.
Sandra Gerland, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Ludger Overmeyer, Annika Raatz   +5 more
wiley   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Effect of Calcium Ions on the Surface Properties of Heterogenite and Conducive to Sulfidization Flotation: Insight from Oxygen Vacancy

, 2023
Yongqiang Gao, Mengtao Wang, Guofan Zhang   +2 more
openalex   +1 more source

COMPARISON OF THE INFLUENCE OF IRON AND COPPER IONS ON WATER POLLUTION PROCESSES AT 20 ⁰C USING HYDRAZINE

Екологія, людина, суспільство
The kinetics of oxygen removal processes from water using gyrazine hydrate were studied. A comparison method was used to determine a more effective reagent.
Микола КОСМИНА, Юлія НОСАЧОВА   +1 more
doaj   +1 more source

An ab initio study of intrinsic defects in zirconolite

, 2011
Zirconolite, CaZrTi2O7, is a proposed ceramic for the use in disposal of highly active nuclear waste. Density functional theory (DFT) has been used, in conjunction with a random search technique, to identify the stable interstitial sites for the ...
Duffy, Dorothy M., Morris, Andrew J., Mulroue, Jack   +2 more
core   +1 more source

Nonthermal Plasma Reduction of Nickel Oxide Layers by Atmospheric Pressure Dielectric Barrier Discharge in Argon/Hydrogen

Advanced Engineering Materials, EarlyView.
This work explores the reduction of nickel oxide layers using dielectric barrier discharge plasma in an argon–hydrogen atmosphere. The results reveal a strong temperature dependence, enabling complete reduction of thick oxide layers at 200°C within seconds.
Maria Argirusi, Viktor Udachin, Sascha Jan Zimmermann, Alexander Tillmanns, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +5 more
wiley   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, Volume 28, Issue 11, 3 June 2026.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Composition and structure of tungsten antimony acid

Конденсированные среды и межфазные границы
Tungsten antimony acids (TAA) with the composition H(2)Sb(2)WXO6·nH2O (0 < x ≤ 1.45; 0 < n ≤ 2.0) have been synthesized by hydrolysis of antimony trichloride pre-oxidized with nitric acid in the presence of varying amounts of Na2WO4.
Pyotr V. Timushkov, Vladimir A. Burmistrov, Maxim N. Ulyanov, Victor N. Semenov   +3 more
doaj   +1 more source

Site-selective Mott transition in rare earth nickelates

, 2012
A combination of density functional and dynamical mean field theory calculations are used to show that the remarkable metal-insulator transition in the rare earth nickelate perovskites arise from a site-selective Mott phase, in which the $d$-electrons on
Marianetti, Chris A., Millis, Andrew J., Park, Hyowon   +2 more
core   +1 more source