Results 51 to 60 of about 12,806 (266)

Oxide minerals of Kaavi kimberlites (Finland)

Известия высших учебных заведений: Геология и разведка, 2019
The mineralogical and petrogeochemical features of the Neoproterozoic kimberlite rocks of the Lahtojoki and Niilonsuo pipes of the Kaavi cluster (Kaavi-Kuopio, Finland) have been studied, differences in their petrogeochemical composition, quantitative ...
N. S. Azarova, A. V. Bovkun, V. K. Garanin, D. A. Varlamov, H. L. Hong   +4 more
doaj   +1 more source

Influence of the phase composition of the TiO₂ matrix on the optical properties and morphology of deposited C₃N₄O_x nanoparticles

Хімія, фізика та технологія поверхні, 2020
The use of oxygen modified graphite-like carbon nitride (C3N4Ox), photosensitive in the visible region of the optical spectrum, along with TiO2, photocatalytically active only in the ultraviolet region of the spectrum, in the C3N4Ox/TiO2 binary ...
M. E. Bondarenko, P. M. Silenko, Yu. M. Solonin, A. V. Ragulya, M. M. Zahornyi, V. V. Shvalagin, N. I. Gubareni, O. Yu. Khyzhun   +7 more
doaj   +1 more source

Interfacial Water Coordination on Ruthenium Oxide Nanoparticles Confined Within Covalent Organic Framework and Its Effect on Electrochemical Nitrate Reduction

Advanced Science, EarlyView.
We demonstrate how oxygen‐deficient ruthenium oxide (RuOx) nanoparticles confined within covalent organic framework achieve highly efficient nitrate‐to‐ammonia conversion. Strong interaction between RuOx nanoparticles and COF results in modified interfacial hydrogen‐bond water network and adsorption of nitrogenous intermediates.
Yun Li, Xin Zhao, Arsenii S. Portniagin, Yuxuan Wu, Desui Chen, Haochen Liu, Andrey L. Rogach   +6 more
wiley   +1 more source

Polymorphism of the Transition Metal Oxidotellurates NiTeO₄ and CuTe₂O₅

Crystals
As part of crystal growth experiments on transition metal oxidotellurates using chemical vapor transport reactions or hydrothermal conditions, single crystals of NiIITeVIO4 and CuIITeIV2O5 were obtained for the first time in the form of new modifications,
Matthias Weil, Enrique J. Baran
doaj   +1 more source

Preparation and Structural Characterizations of Titania Slag

High Temperature Materials and Processes, 2012
The thermal stability, crystal structures, microstructure, surface chemical functional groups and molecular structures of titania slag were characterized using TG/DSC, XRD, SEM, FT-IR and Raman spectroscopy techniques, respectively.
Chen Guo, Chen Jin, Srinivasakannan C., Peng Jinhui   +3 more
doaj   +1 more source

U-Pb geochronology of rutile: deciphering the cooling history of the Oaxacan Complex granulites, southern Mexico

Revista Mexicana de Ciencias Geológicas, 2020
Rutile (TiO2) is a heavy mineral, commonly found as accessory in many lithologies, such as basic igneous rocks, high-grade metamorphic units, as well as a detritus in sedimentary clastic rocks.
Miguel Gerardo Adame-Martínez, Luigi Augusto Solari, Carlos Ortega-Obregón, Fanis Abdullin   +3 more
doaj   +1 more source

Optimized Antimony‐Doped Tin Oxide Thin Films With Enhanced Electrical Properties for Low‐Emissivity Architectural Coatings

Advanced Science, EarlyView.
Antimony‐doped tin oxide (ATO) thin films were deposited by aerosol‐assisted chemical vapor deposition (AACVD) and systematically investigated to establish correlations between Sb doping level, structural properties and optoelectronic performance. Optimized films exhibited low sheet resistance, high carrier concentrations, and high visible transparency
Iqra Ramzan, Ivan P. Parkin, Claire J. Carmalt   +2 more
wiley   +1 more source

Pseudorutile-leucoxene-quartz ores of Timan ‒ a new genetic type of titanium raw materials: prospects for industrial development

Georesursy
The two largest deposits of Russia – Yaregskoye and Pizhemskoye belong to the same genetic type; hydrothermal-metamorphic indigenous deposits. They are located in the same Timan structure at a distance of no more than 230 km from each other. According to
A. B. Makeyev, S. G. Skublov, O. L. Galankina, E. A. Vasiliev, A. O. Krasotkina   +4 more
doaj   +1 more source

Thermally Assisted Photocatalytic Dehydrogenation of Methanol in Continuous Steady‐State Operation

Advanced Science, EarlyView.
Thermally assisted photocatalytic methanol dehydrogenation on Pt/TiO2 enables formaldehyde and hydrogen production far beyond thermodynamic limits. Continuous operation delivers up to 95% selectivity over 70 h, and oxygen microdosing strongly boosts conversion by regenerating surface oxygen sites.
Stubenrauch Florian, Nathrath Phillip, Schörner Markus, Mahayni Yazan, Fritsch Birk, Hutzler Andreas, Wasserscheid Peter, Bösmann Andreas, Schühle Patrick   +8 more
wiley   +1 more source

Tryphon rutilator

, 2016
Published as part of Ghahari, Hassan & Jussila, Reijo, 2016, Contribution to the knowledge of the fauna of Ichneumonidae (Hymenoptera: Ichneumonoidea) from Iran, pp. 119-124 in Beiträge Zur Entomologie = Contributions to Entomology 66 (1) on page 122, DOI: 10.21248/contrib.entomol.66.1.119-124, http://zenodo.org/record ...
Ghahari, Hassan, Jussila, Reijo
openaire   +2 more sources