Results 1 to 10 of about 2,276,951 (291)

Synergistic Proton and Oxygen Ion Transport in Fluorite Oxide-Ion Conductor

open access: yesEnergy Material Advances
Current perovskite oxide electrolytes, i.e., acceptor-doped Ba(Ce,Zr)O3-δ, exhibit proton conductivity ranging from 10−3 to 10−2 S cm−1 at 600 °C for protonic ceramic fuel cells (PCFCs), which rely on the structural defects.
Yong Yu   +7 more
doaj   +4 more sources

Protic Imidazolium Polymer as Ion Conductor for Improved Oxygen Evolution Performance [PDF]

open access: yesPolymers, 2019
Improving the electrocatalytic performance of oxygen evolution reaction (OER) is essential for oxygen-involved electrochemical devices, including water splitting and rechargeable metal–air batteries. In this work, we report that the OER performance of commercial catalysts of IrO2, Co3O4, and Pt-C can be improved by replacing the traditional Nafion ...
Pengfei Fang   +2 more
exaly   +3 more sources

Tailoring sodium and oxygen mixed-ion conduction in the A-site non-stoichiometric NaNbO3-based ceramics [PDF]

open access: yesNature Communications
Tailoring the electronic or ionic conduction properties of solid-state electrolytes with precision is essential to fulfilling the functional demands of electrochemical energy storage and conversion technologies.
Zhiyong Liu   +7 more
doaj   +2 more sources

The preparation and electrochemical performance of Lu3+/Gd3+ co-doped ceria-chloride composite electrolyte

open access: yesInternational Journal of Electrochemical Science, 2021
In this study, Ce0.8Gd0.1Lu0.1O2-α was synthesized by a sol-gel method. And Ce0.8Gd0.1Lu0.1O2-α-(Na/K)Cl composite electrolyte was prepared at 750 °C.
Jilong Ma   +6 more
doaj   +1 more source

DC-Voltage-Induced High Oxygen Permeation through a Lanthanum Silicate Electrolyte with a Cerium Oxide Thin Film

open access: yesElectrochemistry, 2021
An oxide-ion-conductor-based oxygen pumping system can serve as an on-site oxygen separation system. Herein, we present the oxygen permeation capability of a Pt electrode/La-Sm-doped CeO2 (L-SDC) intermediate layer/c-axis-oriented La9.66Si5.3B0.7O26.14 ...
Shingo IDE   +5 more
doaj   +1 more source

Active participation of “inert” YSZ substrates on interface formation in Fe3O4/YSZ heterostructures

open access: yesApplied Surface Science Advances, 2021
The bulk and emerging interface properties of magnetite Fe3O4/YSZ(001) heterostructures grown by pulsed laser deposition are investigated. Fe3O4 thin films (4–38 nm) grow epitaxially in (111) orientation and undergo a Verwey transition at max.
Mai Hussein Hamed   +2 more
doaj   +1 more source

Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor

open access: yesHydrogen, 2022
An oxygen pump sensor was constructed using yttria-stabilized zirconia, which is an oxide ion conductor, and oxygen was discharged from steam to generate hydrogen.
Michihisa Fukumoto, Kano Nakajima
doaj   +1 more source

Effect of Gd and Ti co-doping on electrical performance of Bi2O3 oxygen ion conductor

open access: yesMaterials Research Express, 2022
In this study, a new oxygen ion conductor electrolyte material with high conductivity was reported. Bi _2 O _3 was co-doped with Gd _2 O _3 and TiO _2 by solid-phase synthesis method to obtain Bi _1–3x Gd _2x Ti _x O _1.5+ _δ and Bi _0.76 Gd _0.18−x Ti ...
Qiang Yang   +7 more
doaj   +1 more source

Evaluating the Rate-determining Steps of Oxygen Permeation in Ba0.5La0.5FeO3−δ Perovskite

open access: yesElectrochemistry, 2023
Perovskite oxides obtained from Ba1−xLaxFeO3−δ (BLF) are considered beneficial materials for electrodes of solid oxide fuel cells and oxygen permeation membranes because of their high oxygen permeability, which is a criterion of oxide ion (O2 ...
Md Saiful ALAM   +2 more
doaj   +1 more source

High-Temperature Behavior, Oxygen Transport Properties, and Electrochemical Performance of Cu-Substituted Nd1.6Ca0.4NiO4+δ Electrode Materials

open access: yesApplied Sciences, 2022
In this study, Nd1.6Ca0.4Ni1−yCuyO4+δ-based electrode materials for intermediate temperature solid oxide fuel cells (IT-SOFCs) are investigated. Materials of the series (y = 0–0.4) are obtained by pyrolysis of glycerol-nitrate compositions.
Tatiana Maksimchuk   +11 more
doaj   +1 more source

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