Results 51 to 60 of about 3,717 (223)

NiCo‐Layered Double Hydroxide‐Decorated Oxygen Vacancy‐Engineered BiVO4 Photoanode for Efficient Photoelectrochemical Water Oxidation

ChemPhotoChem, Volume 10, Issue 8, August 2026.
Decorating a hydrogen‐treated BiVO4 photoanode with nickel‐cobalt‐layered double hydroxide (NiCo‐LDH) led to a 3.8‐fold increase in the photocurrent density relative to that of pristine BiVO4. Hydrogen annealing introduces oxygen vacancies into the BiVO4 lattice, thereby increasing donor density, while NiCo‐LDH modification enhances charge‐transfer ...
Md. Masum Billah, Wai Kian Tan, Hiroyuki Muto, Atsunori Matsuda, Go Kawamura   +4 more
wiley   +1 more source

Manganese Oxide Catalysts for Lithium–Oxygen Batteries: Structures, Mechanisms, and Reaction Pathway Engineering

Small, Volume 22, Issue 44, 7 August 2026.
How do the morphologies, crystal structures, and electronic properties of manganese oxides influence oxygen reaction pathways in lithium–oxygen batteries (LOBs)? This review systematically summarizes structure‐dependent catalytic mechanisms and recent engineering strategies, highlighting how defect engineering, compositional modulation, and reaction ...
Ruiqin Peng, Linna Dai, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Guifang Zeng, Yanhong Tian, Andreu Cabot, Qing Sun   +7 more
wiley   +1 more source

Síntese pelo método da coprecipitação e caracterização estrutural do tungstato de cálcio com estrutura tipo scheelita

Cerâmica, 2013
Nanocristais de CaWO4 foram sintetizados pelos métodos de coprecipitação com diferentes razões do solvente (água/etilenoglicol) e processados à temperatura ambiente.
E. G. Vieira, P. A. A. Sousa, J. M. E. Matos, M. R. M. C. Santos   +3 more
doaj   +1 more source

Surface Characterization of Scheelites

Adsorption Science & Technology, 1985
Tungstates and molybdates of Ca, Sr and Cd have been prepared by precipitation. X-ray diffractograms prove them to be stoichiometric compounds with scheelite structure. The surface of the products and its evolution with thermal treatment have been studied by thermogravimetry and scanning electron microscopy.
J. E. Herrero García, J. M. Guil Pinto, A. Ruiz Paniego   +2 more
openaire   +1 more source

Impact‐diagnostic criteria for use in confirming a meteorite impact origin of terrestrial geological structures: Recommendations by the Impact Cratering Committee of the Meteoritical Society

Meteoritics &Planetary Science, Volume 61, Issue 7, Page 1538-1565, July 2026.
Abstract The framework of the Impact Cratering Committee (ICC) of the Meteoritical Society was approved in 2020, with the first committee members appointed in 2023. The ICC has a mandate to (1) approve, maintain, and update a database of confirmed terrestrial meteorite impact structures, (2) define and regularly update the criteria used for ...
A. J. Cavosie, S. Alwmark, D. Baratoux, G. Consolmagno, L. Ferrière, S. Goderis, N. Hauser, T. Kenkmann, C. Koeberl, G. R. Osinski, A. E. Pickersgill, M. Schönbächler   +11 more
wiley   +1 more source

Skarn-scheelite ores beneficiation stimulation using ultrasonic treatment

E3S Web of Conferences, 2018
The impact of acoustic vibrations on physical and chemical properties of circulating water, heterogenic systems of pulps of sulphide and scheelite cycles flotations, collectors (IMA-I413p (potassium butyl xanthate), sodium oleate of commercial acid B-115)
Shepeta Elena, Samatova Luiza
doaj   +1 more source

Thermal and Photocatalytic Conversion of CO2 to Ethanol: Advances in Catalyst Design, Challenges, and Opportunities

ChemSusChem, Volume 19, Issue 12, 26 June 2026.
This review examines thermo‐ and photocatalytic routes for converting CO2 to ethanol and analyzes how metal alloying, promoters, supports, surface structure, and semiconductor design govern catalyst activity, selectivity, and stability. It integrates mechanistic insights from experimental and theoretical studies and identifies the main challenges and ...
Bryan Rocano‐Merchan, Alejandro Cañete‐Arché, Asier Agrelo‐Lestón, Jonatan Perez‐Arce, Zoraida Freixa, Ander Centeno‐Pedrazo, Max García‐Melchor, Eduardo J. Garcia‐Suarez   +7 more
wiley   +1 more source

The impact of high-power electromagnetic pulses on the surface state and technological properties of the calciferous minerals [PDF]

Journal of Mining and Metallurgy. Section A: Mining, 2019
The modification of structural chemical properties of natural fluorite, scheelite and calcite under the impact of high-power electromagnetic pulses (HPEMP-treatment) were studied with help of adsorption of acid-base indicators. It was determined that the
Chanturiya V.A., Zh Bunin I., Ryazantseva M.V.   +2 more
doaj  

Mineralogy of Historic Scheelite Mine Tailings at Glenorchy, Otago, New Zealand

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Otago Schist orogenic mineral deposits with scheelite and gold in the Glenorchy area are mineralogically and geochemically similar to, but structurally different from, those at the active Macraes gold mine in East Otago. Glenorchy veins were mined for scheelite up to 1970s, and an abandoned processing battery site at Glenorchy is now being managed for ...
Dave Craw, Marshall Palmer, Doug MacKenzie   +2 more
wiley   +1 more source

Formation and environmental significance of aqueous contaminants at a wolframite-scheelite-hosted tungsten deposit

, 2018
Environmental effects of tungsten (W) are under growing interest and scrutiny due to the increasing use of the metal for munitions and industrial applications.
Caitlin Ashley McKinnon (12301625)
core   +1 more source