Results 31 to 40 of about 3,506 (171)

Nanocubes and Cuboctahedra: Entropic Stabilization Versus Thermal Segregation in Rock Salt‐ and Spinel‐Type Multinary Oxides from Spray‐Flame Synthesis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Spray‐flame synthesis enables highly flexible and scalable production of multinary and high‐entropy oxide nanoparticles due to high synthesis temperatures with subsequent quenching. Temperature‐dependent in situ diffraction of as‐synthesized materials clearly reveals entropy stabilization in rock salt lattices, while spinels—featuring tetrahedral and ...
Mohammed‐Ali Sheikh, Steven Angel, Sabrina Schleich, Leon Müller, Jan Ternieden, Hatem M. A. Amin, Christof Schulz, Hartmut Wiggers   +7 more
wiley   +1 more source

Influência do tipo de solvente na síntese de mulita pelo método Pechini

Cerâmica
Resumo Mulita é um aluminossilicato com grande importância na tecnologia cerâmica. Sua síntese através de métodos químicos tem sido extensivamente estudada, no entanto, não se observam estudos da sua obtenção pelo método Pechini.
A. N. S. Braga, V. N. Simões, H. L. Lira, G. A. Neves, R. R. Menezes   +4 more
doaj   +1 more source

Caracterização do pigmento de ZnCr2O4 sintetizado pelo método dos precursores poliméricos

Cerâmica, 2014
O pigmento de cromita de zinco foi sintetizado pelo método Pechini. Inicialmente, realizou-se um estudo de análise termodinâmica, visando prever os detalhes operacionais para síntese do pigmento pelo método de co-precipitação química.
E. V. Senatore, S. F. Santos, T. Ogasawara   +2 more
doaj   +1 more source

A Comparison of the Role of the Chelating Agent on the Structure of Lithium Conducting Solid Electrolyte Li_1.4Al_0.4Ti_1.6(PO₄)₃: Pechini vs. Modified Pechini-Type Methods

Batteries, 2020
In recent years, solid lithium-ion conductors have been widely studied because of their applications as electrodes and solid electrolytes in rechargeable lithium-ion batteries.
Mohammad Reza Ghaani, Amir Masoud Mohtasebi, Razie Tajeri, Pirooz Marashi   +3 more
doaj   +1 more source

Avaliação de argilas pura e impregnada com SnO2 como catalisador para a produção de biodiesel

Cerâmica, 2015
ResumoA versatilidade de materiais naturais como as argilas tem chamado a atenção para a sua aplicação em estudos científicos. Neste trabalho foi avaliado o enriquecimento dessas propriedades com a impregnação de SnO2 na superfície desse material, e seu ...
A. M. Neris, D. Araújo, Y. Cavalcante, A. F. F Farias, K. F. Moura, A. A. Cutrin, J. D. S. S. Nascimento, E. Longo, A. G. Souza, I. M. G. Santos   +9 more
doaj   +1 more source

Materiais cerâmicos catalíticos à base de hexa-aluminato de metais alcalino terrosos (Ba e Ca): síntese e análise estrutural

Cerâmica, 2015
ResumoO objetivo desse trabalho é desenvolver catalisadores cerâmicos compostos por hexa-aluminatos de metais alcalinos terrosos (Ca e Ba) - CaAl12O19 e BaAl12O19, respectivamente, na forma de pó cerâmico, por meio dos métodos de síntese Pechini e da ...
L. S. Neiva, C. R. P. B. Borges, M. I. Brasileiro, L. M. Novaes, A. M. Cabral, J. B. L. Oliveira   +5 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, Volume 38, Issue 51, 11 September 2026.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Nanocrystalline Iridium Oxide Stabilized by Magnesium–Titanium–Spinel as Active Acidic Oxygen Evolution Reaction Catalyst

Advanced Energy and Sustainability Research, Volume 7, Issue 9, September 2026.
Iridium–magnesium–titanium spinels increase the mass specific iridium activity and therefore can lower the noble metal loading in PEM water electrolysis. The synthesis of such catalyst is shown and the catalyst is thoroughly characterized. The increase in activity is contributed to the formation of small IrOx clusters in the transitional state from ...
Timo Prölß, Philipp Parzinger, Achim Alkemper, Andreas Hutzler, Abbas Beheshti Askari, Nobutaka Maeda, Jan P. Hofmann, Tanja Franken   +7 more
wiley   +1 more source

Synthesis of MgB4O7 and Li2B4O7 crystals by proteic sol–gel and Pechini methods

, 2016
Magnesium-tetraborates and lithium-tetraborates are excellent detectors for ionizing radiation. However, manufacturing these crystalline structures is challenging as it involves multi-step chemical processes and toxic reagents.
d’Errico, Francesco, Lima, Héstia Raíssa Batista Reis, de Souza, Susana Oliveira, Sussuchi, Eliana Midori, Nascimento, Débora Siqueira   +4 more
core   +1 more source

GREEN AND CONVENTIONAL SYNTHESIS OF NiO NANOPARTICLES: IMPACT OF ERUCA SATIVA ON PHOTOCATALYSIS

Materiali in Tehnologije
In this study, we report a hybrid synthesis route to nickel oxide (NiO) nanoparticles that combines conventional sol–gel and Pechini methods with a green, bio-mediated approach using Eruca sativa (rocket) extract for the first time in NiO synthesis. This
Samia Remli, Djanette Meriem Blizak, Salah Blizak   +2 more
doaj   +1 more source