Results 81 to 90 of about 5,091 (223)

Unveiling Entropy‐Driven Performance Enhancement in Double Perovskite Oxygen Electrodes for Protonic Ceramic Electrochemical Cells

Advanced Energy Materials, Volume 15, Issue 47, December 16, 2025.
Leveraging configurational entropy, high‐entropy double perovskite oxides (HEDPOs) enable unprecedented electrochemical performance in protonic ceramic electrochemical cells, achieving 1.77 W·cm−2 at 650 °C and 4.42 A·cm−2 at 1.3 V. Entropy‐stabilized structures facilitate rapid proton and oxygen ion transport with enhanced surface kinetics ...
Seeun Oh, Incheol Jeong, Dongyeon Kim, Hyeonggeun Kim, Ki‐Min Roh, Kang Taek Lee   +5 more
wiley   +1 more source

Sol–gel synthesis, X-ray photoelectron spectroscopy and electrical conductivity of Co-doped (La, Sr)(Ga, Mg)O3−δ perovskites [PDF]

, 2007
La0.8Sr0.2Ga0.8Mg0.2−xCoxO3−δ (LSGMC) powders containing different amounts of Co (x = 0.05 and 0.085) were prepared by a citrate sol–gel method. The powders were used to prepare highly phase-pure LSGMC sintered pellets with controlled composition and ...
Falsetti, A, Knauth, P, Polini, R, Schäf, O, Traversa, E   +4 more
core   +1 more source

Lead‐Free (K0.5Na0.5)NbO3 Unmodified Piezoceramics: A Reduction in the Energetic Budget of Solid State Synthesis and Sintering

Chemistry–Methods, Volume 5, Issue 12, November 2025.
The temperature of the solid‐state synthesis of pure (K0.5Na0.5)NbO3 piezo‐composition is reduced by using the niobium pentoxide reactant in the mixture of reagents after attrition milling for only 3h: a majoritarian (57 wt.% of the total Nb2O5 content) orthorhombic polymorph Pbam.
Maria Dore, José F. Bartolomé, Sonia Lopez‐Esteban, Marzia Mureddu, Costantino Cau, Stefano Enzo, Álvaro García, Sebastiano Garroni, Lorena Pardo   +8 more
wiley   +1 more source

TiO2 sintetizado por el método de precursor polimerico (Pechini): estructura de la resina intermedia [PDF]

, 2011
En este trabajo se ha utilizado el método de precursor polimérico (método de Pechini) para sintetizar dióxido de titanio, proceso que ha permitido tener un mayor control sobre la pureza del óxido y el tipo de fase que ha presentado el material obtenido,
Franco, Y., Vargas, M. A.
core  

Wet chemical synthesis and characterisation of Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ proton conductor [PDF]

, 2017
M. N. Khan would like to thank University of Brunei Darussalam for a Graduate Research Scholarship. L.C. Lim and P. Hing thank UBD, and Government of Brunei Darussalam (S&T 17) for a generous research grant under the UBD Energy programme.Ba0.5Sr0.5Ce0 ...
Azad, A. K., Hing, Peter, Irvine, J. T. S., Naeem Khan, M., Savaniu, C. D.   +4 more
core   +1 more source

Synthesis‐Driven Functionality in High‐Entropy Materials

Small, Volume 21, Issue 44, November 6, 2025.
This review explores how synthesis techniques shape the structure, morphology, and functional properties of high‐entropy materials for energy and electronic applications. By comparing diverse methods through nine key criteria and linking them to material performance, the work offers a practical framework to guide synthesis selection for targeted ...
Anurag Khandelwal, George Mathew, Subramshu Bhattacharya, Alexander Colsmann, Gabriel Cadilha Marques, Miriam Botros, Florian Strauss, Jiangyuan Xing, John Silvister Raju, Arivazhagan Ponnusamy, Jasmin Aghassi‐Hagmann, Torsten Brezesinski, Simon Schweidler, Ben Breitung   +13 more
wiley   +1 more source

The evolution of 'sol-gel' chemistry as a technique for materials synthesis [PDF]

, 2016
From its initial use to describe hydrolysis and condensation processes, the term ‘sol–gel’ is now used for a diverse range of chemistries.
Danks, Ashleigh, Hall, Simon, Schnepp, Z
core   +2 more sources

Sonochemical activation for BaTiO3 synthesis: A rapid and efficient route to the tetragonal phase

International Journal of Applied Ceramic Technology, Volume 22, Issue 6, November/December 2025.
Abstract Barium titanate is a highly promising ferroelectric material, but its synthesis is often based on lengthy and complex processes. This paper presents the development of an ultrafast synthesis route for producing high‐purity tetragonal BaTiO3. The method combines a brief sonochemical activation (15 min) with conventional calcination. Compared to
E. C. Silva, R. L. dos Santos, S. T. Monteiro, J. P. da Silva, Y. M. C. Pinto, L. Aguilera, F. X. Nobre, M. R. Morelli, A. P. Luz, Y. Leyet   +9 more
wiley   +1 more source

Síntese e caracterização de materiais termoelétricos baseados no sistema CA-Co-O [PDF]

, 2014
Mestrado em Engenharia FísicaOs óxidos de metais, como é o caso dos óxidos de cálcio e cobalto, são materiais de elevado interesse tecnológico atendendo às suas propriedades termoelétricas, o que poderá favorecer a sua utilização como conversor de ...
Miyazawa, Keiji
core  

Highly Active Air Electrode with Enhanced Proton Conduction via Isovalent Doping in a Layered Perovskite for Reversible Protonic Ceramic Cells

Advanced Functional Materials, Volume 35, Issue 41, October 8, 2025.
A Ni‐doped PBSCN20 air electrode is proposed as a promising air electrode material for reversible protonic ceramic cells. An isovalent doping significantly facilitates oxygen vacancy formation and proton uptake while simultaneously reducing the energy barrier for proton migration.
Jiwon Yun, Hyeongsik Shin, Seungchan Kim, Boseok Seong, Seongjae Lee, Kyeounghak Kim, Sun Hee Choi, Sihyuk Choi   +7 more
wiley   +1 more source