Results 161 to 170 of about 30,801 (305)

Asymmetric Electrostrain/Electrobending in Piezoelectric Ceramics: Role of Defect Dipoles or Oxygen Vacancies

open access: yesAdvanced Science, EarlyView.
Defect‐configurational origins of the asymmetric apparent electrostrain are revealed in different piezoelectric ceramics via atomic‐scale visualization of defect configurations. Migration of oxygen vacancies leads to the electrobending effect in N2‐sintered BaTiO3, while defect dipoles in Ba0.99TiO2.99 generate true asymmetric electrostrain without ...
Jie Wang   +7 more
wiley   +1 more source

Novos materiais com ferro, com alta condutividade iónica de oxigénio

open access: yes, 2006
Doutoramento em Ciência e Engenharia de MateriaisPretende-se com este trabalho avaliar o potencial de novos materiais para aplicações de alta temperatura, nomeadamente membranas para separação de oxigénio e oxidação parcial de hidrocarbonetos, e pilhas ...
Shaula, Aliaksandr
core  

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

open access: yesAdv Mater
Hong Y   +11 more
europepmc   +1 more source

V2CTx MXene as a Sacrificial Promoter for NiFe Catalyst for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Science, EarlyView.
These findings demonstrate that V2CTx functions beyond passive conductive support as an active electronic participant whose structural legacy sustains durable performance even after vanadium leaching in Anion Exchange Membrane (AEM) Electrolysers. ABSTRACT Nickel‐iron layered double hydroxides (NiFe‐LDH) show excellent activity, their poor conductivity
Bastian Schmiedecke   +12 more
wiley   +1 more source

Correction: Alternative Strategy for Development of Dielectric Calcium Copper Titanate-Based Electrolytes for Low-Temperature Solid Oxide Fuel Cells. [PDF]

open access: yesNanomicro Lett
Rauf S   +10 more
europepmc   +1 more source

Sulfated Cyclocarya Paliurus Polysaccharide Sorchestrates the Gut Microbiome to Mobilize a Host‐Derived 12‐HEPE Against Ulcerative Colitis

open access: yesAdvanced Science, EarlyView.
A sulfated polysaccharide (SCP) from Cyclocarya paliurus alleviates ulcerative colitis by reshaping the gut microbiome. This remodeled microbiota orchestrates the upregulation of the host‐derived lipid 12‐HEPE, which directly inhibits the TLR4/NF‐κB pathway to suppress inflammation.
Xianxiang Chen   +11 more
wiley   +1 more source

Effects of PH3 and CH3Cl Contaminants on the Performance of Solid Oxide Fuel Cells

open access: yes, 2014
Solid oxide fuel cells (SOFCs) have been considered as one of the most efficient power generators that can directly convert chemical energy in the natural gas, biomas, or coal-derived gas to electrical energy.
Li, B.   +5 more
core  

Graphene/Zirconia Composites for Components in Solid Oxide Fuel Cells: Microstructure and Electrical Conductivity. [PDF]

open access: yesNanomaterials (Basel)
Coto-Ruiz FJ   +4 more
europepmc   +1 more source

An Embodied Paper‐Based Microfluidic Al‐Air Battery for Enduring Untethered Insect‐Scale Robots

open access: yesAdvanced Science, EarlyView.
This work presents a centimeter‐scale microfluidic aluminum–air battery (MFAAB) with dual‐surface anode and F−‐mediated byproduct decomposition. The design enables a high capacity of 2697.05 mAh/g Al and delivers tens of milliwatts to power LEDs, motors, and a toy car.
Yun Yang   +5 more
wiley   +1 more source

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