Results 11 to 20 of about 21,022 (289)

Microemulsion mediated synthesis of BaTiO3 – Ag nanocomposites [PDF]

open access: yesProcessing and Application of Ceramics, 2009
BaTiO3 – Ag composite nanopowders were synthesized via microemulsion mediated synthesis through the hydrolytic decomposition of mixed metal alkoxide solutions as precursor for the BaTiO3 and the reduction of silver nitrate in the presence of ...
Songhak Yoon   +4 more
doaj   +2 more sources

A Combinatorial Method for Discovery of BaTiO3-based Positive Temperature Coefficient Resistors [PDF]

open access: yes, 2010
PhDThe conventional materials discovery is a kind of empirical (“trial and error”) science that of handling one sample at a time in the processes of synthesis and characterization.
Chen, Yulong
core   +4 more sources

Electrical Properties of Un-doped and Doped EuTiO3-based Perovskites [PDF]

open access: yes, 2013
Un-doped and doped EuTiO3 (ET) ceramics were prepared in 5%H2/95%N2 and N2 atmospheres at various temperatures (1350, 1450 and 1500 oC). For un-doped ET, higher pellet density (above 90%) and larger grain sized ceramics were obtained from the higher ...
WANG, JING
core   +6 more sources

Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective. [PDF]

open access: yesAdv Sci (Weinh)
This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Lu R   +6 more
europepmc   +2 more sources

Mechanochemical Piezoelectric Catalysis: Advancing the Hydrogenation of Alkenes. [PDF]

open access: yesAdv Sci (Weinh)
This study presents mechanochemical piezoelectric catalysis for alkene hydrogenation, eliminating the need for transition metals, H2, and solvents. The method effectively hydrogenates diverse activated and unactivated alkenes and shows potential for modifying bioactive molecules in pharmaceuticals.
Ai Z   +5 more
europepmc   +2 more sources

Insights into the BaTiO3-Pb Perovskite Semiconducting Layer in PbO2 Electrode Preparation by Electrochemical Deposition and Its Performance Evaluation

open access: yesInternational Journal of Electrochemical Science, 2017
PbO2 electrode has high water splitting potential as that of BDD electrode, but no stability was shown in electrochemically deposited PbO2 electrode. In this work, the effect of lower layer (a perovskite type dielectric BaTiO3) on PbO2 electrodeposition ...
G. Muthuraman, K. Kannan, I.S. Moon
doaj   +1 more source

Electrical and Physical Characterization of Bulk Ceramics and Thick Layers of Barium Titanate Manufactured Using Nanopowders [PDF]

open access: yes, 2007
Fine powders of BaTiO3 are synthesized by hydrothermal processing at 250 C for 7 h. Two different starting mixtures were used, TiCl3 + BaCl2 and TiO2 + BaCl2. The size of the resulting crystallites was close to 20 nm in both cases.
Durand, Bernard   +7 more
core   +1 more source

Significant improvement in Curie temperature and piezoelectric properties of BaTiO3 with minimum Pb addition

open access: yesJournal of Asian Ceramic Societies, 2019
Dense Ba1-xPbxTiO3 (x = 0–0.20) samples (>90% TD) were fabricated through a solid-state reaction route involving wet ball milling for 24 h and calcination at 1150°C for 4 h, followed by sintering at 1300°C for 4 h.
Sandeep Butee   +5 more
doaj   +1 more source

Detection of Degraded Formulated BaTiO<sub>3</sub> Induced by Oxygen Vacancy Migration Using Ultrasonic Attenuation. [PDF]

open access: yesAdv Sci (Weinh)
Oxygen vacancy migration is a key degradation mechanism for the majority of MLCCs. There are limitations with spatially identifying regions of a capacitor that have degraded due to oxygen vacancy migration. This work showcases ultrasonic attenuation as a non‐electrical and nondestructive technique of identifying oxygen vacancy degraded regions of an ...
Jones HN   +3 more
europepmc   +2 more sources

Greatly enhanced permittivity in BaTiO3-epoxy dielectric composites with improved connectivity of ceramic phase

open access: yesJournal of Materiomics, 2021
BaTiO3-epoxy dielectric composites were prepared by curing the liquid epoxy monomer that infiltrated into the partially-sintered BaTiO3 porous ceramics.
Meng Cao   +4 more
doaj   +1 more source

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