Results 61 to 70 of about 98,604 (301)

Designing materials for electrochemical carbon dioxide recycling [PDF]

, 2019
Electrochemical carbon dioxide recycling provides an attractive approach to synthesizing fuels and chemical feedstocks using renewable energy. On the path to deploying this technology, basic and applied scientific hurdles remain.
De Luna, P, Dinh, CT, Kim, D, Li, Y, Ross, MB, Sargent, EH, Yang, P   +6 more
core  

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Application of Tin Sulfide-Tin Dioxide Nanocomposite as Oxygen Gas-Sensing Agent

International Journal of Electrochemical Science, 2013
Tin sulfide-tin dioxide nanocomposite is synthesized by the pulsed-current electrochemical method on the surface of tin substrate. The prepared sample in conditions includes 92 mA.cm-2 current density, 13 Hz pulse frequency, 0.008 M sodium sulfide, pH 12.
Hassan Karami, Somayyeh Babaei
doaj   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Profuse Surface Activation of Ir‐Dispersed Titanium Nitride Bifunctional Electrocatalysts

Advanced Energy & Sustainability Research, 2021
Dispersing small amounts of rare‐earth metal on the surface of metallic nitrides displays great prospects for systematic tweaking of electrocatalytic activity.
Ganesan Anandhababu, Dickson D. Babu, Veerappan Manimuthu, Sambath Baskaran   +3 more
doaj   +1 more source

Selective low concentration ammonia sensing in a microfluidic lab-on-a-chip [PDF]

, 2006
In the medical community, there is a considerable interest in a diagnostic breath analyzer for ammonia that is selectively enough to measure in exhaled air and small enough for the small volumes available in such an application.
Berg, Albert van den, Delft, Koen M. van, Koelmans, W.W., Olthuis, Wouter, Timmer, Björn H.   +4 more
core   +3 more sources

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

A Facile and Highly Efficient Three Component Synthesis of Pyran and Chromene Derivatives in the Presence of Nano SnO2 as a catalyst [PDF]

شیمی کاربردی روز, 2015
Nano tin dioxide was employed as a catalyst for efficient and facile preparation of pyran derivatives via the one-pot three component condensation reaction of various aldehydes with malononitrile and dimedone.
سید محمد وحدت, مریم خاورپور, فرج اله محمدزاده   +2 more
doaj   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm, Jana Hubálková, Christian Schimpf, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +6 more
wiley   +1 more source

Properties of thin transparent SnO2:Sb films [PDF]

Журнал нано- та електронної фізики, 2009
We study the electrical and optical properties of tin dioxide films, produced by the spraying method of aqueous-alcoholic solution of tin tetrachloride with antimony trichloride addition.
S.L. Khrypko
doaj