Results 51 to 60 of about 36,126 (211)

Alkaline Leaching: A Facile Surface Activation Strategy to Improve the Reactivity of Air Electrodes for Solid Oxide Fuel Cells

open access: yesAdvanced Materials, EarlyView.
This study shows that alkaline leaching of PrBa0.8Ca0.2Co2O5+δ under anodic bias selectively removes Ba and Ca, forming a cobalt‐rich and amorphous layer. The modified surface significantly boosts ORR activity, offering a simple and effective strategy to improve electrochemical device performance.
Yeongtaek Hong   +11 more
wiley   +1 more source

SIFAT TERMAL, ELEKTROKIMIA DAN STRUKTUR MIKRO OKSIDA PEROVSKIT GANDA SEBAGAI MATERIAL KATODA SOFC BEROPERASI PADA SUHU MENENGAH

open access: yesRekayasa Mesin, 2022
The oxides SmBa0.8Sr0.2Co2O5+δ (SBSC) have been explored as cathode materials for IT-SOFCs using SDC as the electrolyte. XRD was used to determine the structure of SBSC powder, and SEM was used to observe the morphology of the microstructure ...
Subardi Adi
doaj   +1 more source

Effect of Atomic Layer Deposition of Ultra‐Thin Oxide on Reactivity and Durability of Perovskite Oxygen Electrodes

open access: yesAdvanced Materials, EarlyView.
This table of contents illustrates that the mechanism for mitigating Sr segregation depends strongly on the chemistry of the coating layer. HfO2 electrostatically stabilizes the surface by lowering the surface oxygen vacancies, which serve as the driving force for Sr migration. On the other hand, Al2O3 and Fe2O3 react with segregated Sr to form Sr‐Al‐O
Jongsu Seo   +8 more
wiley   +1 more source

The Synthesis and Characterizations of CeY0.15Er0.05O2 Nanocrystal

open access: yesФізика і хімія твердого тіла, 2021
CeY0.15Er0.05O2 nanocrystal powders prepared via sol-gel method. Phases identification have been made X-ray diffraction, SEM-EDX, FTIR, thermal and impedance analysis. XRD data show that all powders were obtained with cubic fluorite structure.
Handan Özlü Torun
doaj   +1 more source

Transformasi Pekan Parit Raja: kajian terhadap kesejahteraan hidup masyarakat [PDF]

open access: yes, 2013
Isu utama yang dibangkitkan dalam kajian ini adalah mengenai isu kesejahteraan hidup masyarakat ekoran transformasi yang berlaku di Pekan Parit Raja dan kesannya.
Miskam, Nurasyikin
core  

The sol–gel route: A versatile process for up-scaling the fabrication of gas-tight thin electrolyte layers [PDF]

open access: yes, 2011
Sol–gel routes are often investigated and adapted to prepare, by suitable chemical modifications, submicronic powders and derived materials with controlled morphology, which cannot be obtained by conventional solid state chemistry paths.
Ansart, Florence   +5 more
core   +4 more sources

Unraveling the Synergistic Activity‐Stability Enhancement of a High‐Entropy Perovskite Air Electrode for Dual Ceramic Electrochemical Cells

open access: yesAdvanced Science, EarlyView.
A high‐entropy air electrode material, Gd0.2Pr0.2Ba0.2Sr0.2Ca0.2FeO3−δ (GPBSCF), is developed for both solid oxide fuel cells and reversible protonic ceramic cells. Its enhanced activity stems from increased oxygen vacancies/holes. The stability improvement is attributed to lattice distortion, while thermal expansion reduction is synergistically due to
Ying Zhang   +9 more
wiley   +1 more source

Lowered Sintering Temperature on Synthesis of La9.33Si6O26 (LSO) – La0.8Sr0.2Ga0.8Mg0.2O2.55 (LSGM) Electrolyte Composite and the Electrical Performance on La0.7Ca0.3MnO3 (LCM) Cathode

open access: yesJurnal Kimia Sains dan Aplikasi, 2018
Solid oxide fuel cell (SOFC) is the device that can convert chemical energy into electricity with highest efficiency among other fuel cell. La9.33Si6O26 (LSO) is the potential electrolyte at intermediate operation temperature SOFC. Low ionic conductivity
Yoga Trianzar Malik   +2 more
doaj   +1 more source

Prediction of the functional properties of ceramic materials from composition using artificial neural networks [PDF]

open access: yes, 2007
We describe the development of artificial neural networks (ANN) for the prediction of the properties of ceramic materials. The ceramics studied here include polycrystalline, inorganic, non-metallic materials and are investigated on the basis of their ...
Alford, N. Mc N.   +4 more
core   +2 more sources

Roadmap for High‐Throughput Ceramic Materials Synthesis and Discovery for Batteries

open access: yesAdvanced Energy Materials, EarlyView.
This work examines ceramic synthesis through the lens of high‐throughput synthesis and optimization, identifying opportunities for faster, adaptable routes. It emphasizes flexible liquid precursor–to–solid film methods over slower solid‐state approaches and highlights computer‐aided decision making to optimize both material properties and device ...
Jesse J. Hinricher   +10 more
wiley   +1 more source

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