Results 31 to 40 of about 51,351 (261)

TỔNG HỢP VÀ ĐẶC TRƯNG VẬT LIỆU NANO ZnFe2O4

Tạp chí Khoa học Đại học Huế: Khoa học Tự nhiên, 2022
Trong nghiên cứu này, vật liệu nano ZnFe2O4 được tổng hợp thành công bằng phương pháp thủy nhiệt kết hợp với nung. Các yếu tố ảnh hưởng đến quá trình tổng hợp vật liệu như thời gian thủy nhiệt, nhiệt độ thủy nhiệt và nhiệt độ nung đã được khảo sát.
My Linh Nguyen Le, Mai Nguyen Do, Thi Ngoc Cam Do, Minh Ha Tran Thi   +3 more
doaj   +1 more source

FastNano Liquid: An Automated Platform for Small‐Angle X‐ray Scattering‐Based Materials Discovery

Advanced Engineering Materials, EarlyView.
We present FastNano Liquid, an automated small‐ and wide‐angle X‐ray scattering platform for the combined synthesis and characterization of (nano)materials. The platform is coupled to varied reactor workflows for both in situ studies of reaction kinetics and ex situ screening of synthesis conditions to support machine learning‐guided exploration ...
Pierre‐Baptiste Flandrin, Émeline Cournède, Jens Krarup, Michael Lesa, Foyzul Hasan, Amandine Séné, Arnaud Lahouati, David Benhaiem, Jérémie‐Luc Sanchez, Simon Delacroix, Thierry Gacoin, Fabienne Testard, Damien Faivre, David Carriere, Corinne Chevallard, Olivier Taché, Mark A. Levenstein   +16 more
wiley   +1 more source

Mechanochemical Synthesis of CuO/MgAl₂O₄ and MgFe₂O₄ Spinels for Vanillin Production from Isoeugenol and Vanillyl Alcohol

Molecules, 2019
CuO/MgAl2O4 and CuO/MgFe2O4 catalysts were successfully synthesized with the use of spinel supports by a very simple and low-cost mechanochemical method. High-speed ball-milling was used to synthesize these catalyst supports for the first time. Materials
Behgam Rahmanivahid, Maria Pinilla-de Dios, Mohammad Haghighi, Rafael Luque   +3 more
doaj   +1 more source

Effects of Slag Composition and Impurities of Alloys on the Inclusion Transformation during Industrial Ladle Furnace Refining

Metals, 2021
The inclusion of the MgO·Al2O3 (MA) spinel and CaO–Al2O3 are occasionally observed during the refining of Al–killed steel, even without the intentional additions of Ca and Mg.
Chunyang Liu, Yi Jia, Lixia Hao, Shaowei Han, Fuxiang Huang, Huixiang Yu, Xu Gao, Shigeru Ueda, Shin-ya Kitamura   +8 more
doaj   +1 more source

Disentangling Bulk and Surface Contributions to Charge and Discharge Fading in High‐Voltage LiCoO2

Advanced Functional Materials, EarlyView.
High‐voltage operation of LiCoO2 accelerates capacity fading through bulk and surface degradation. By introducing a LiTaO3 coating to selectively suppress surface degradation, bulk and surface contributions to charge and discharge fading are decoupled.
Hyungjoon Moon, Sangbin Park, Jaewoo Jung, Seongeun Lee, Chanwoo Jung, Min‐Sik Park, Won‐Sub Yoon   +6 more
wiley   +1 more source

[Hexaamminecobalt(III)] Dichloride Permanganate—Structural Features and Heat-Induced Transformations into (Co^II,Mn^II)(Co^III,Mn^III)₂O₄ Spinels

Inorganics, 2022
We synthesized and characterized (IR, Raman, UV, SXRD) hexaamminecobalt(III) dichloride permanganate, [Co(NH3)6]Cl2(MnO4) (compound 1) as the precursor of Co–Mn–spinel composites with atomic ratios of Co:Mn = 1:1 and 1:3.
Laura Bereczki, Vladimir M. Petruševski, Fernanda Paiva Franguelli, Kende Attila Béres, Attila Farkas, Berta Barta Holló, Zsuzsanna Czégény, Imre Miklós Szilágyi, László Kótai   +8 more
doaj   +1 more source

Designing Vanadium‐Based Oxide Electrocatalysts for Water Splitting: Experimental and Mechanistic Insights with Machine Learning

Advanced Functional Materials, EarlyView.
This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli, Amina Lahrichi, Hoje Chun, Rafael Gómez‐Bombarelli, Bruno G. Pollet   +4 more
wiley   +1 more source

Evolution of an alumina-magnesia/self-forming spinel castable. Part I: Microstructural features Evolução de um refratário de espinélio auto-formado de alumina-magnésia. Parte I: Aspectos microestruturais

Cerâmica, 1999
Refractories containing magnesium aluminate spinel (MgAl2O4) are materials for emerging technology in several applications like cement and steelmaking processes.
D. Gutiérrez-Campos, J. I. Diaz, R. M. Rodriguez   +2 more
doaj   +1 more source

Patterned ferrimagnetic thin films of spinel ferrites obtained directly by laser irradiation [PDF]

, 2013
Some spinel ferrites can be oxidized or transformed at moderate temperatures. Such modifications werecarried out on thin films of mixed cobalt copper ferrites and maghemite, by heating small regions with alow-power laser spot applied for about 100 ns ...
Pasquet, Isabelle, Tailhades, Philippe, Bonningue, Corine, Presmanes, Lionel, Pasquet, Isabel   +4 more
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source