Nickel-doped lanthanum cerate nanomaterials as highly active electrocatalysts
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
| Заглавие |
Nickel-doped lanthanum cerate nanomaterials as highly active electrocatalysts
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| Автор |
Butt, T. M.
Erum, S. Mujtaba, A. Medvedev, D. Janjua, N. K. |
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| Тематика |
CYCLIC VOLTAMMETRY
CYCLIC VOLTAMMETRY NI-DOPED LANTHANUM CERATES ELECTROCATALYSIS HIGH-TEMPERATURE IMPEDANCE SPECTROSCOPY NI-DOPED LANTHANUM CERATES OXYGEN EVOLUTION REACTION |
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| Описание |
The efficient oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) catalyst materials are crucial in the energy research domain due to their tunability. Structural modification in perovskites such as lanthanum cerates (LaCeO3) upon doping at A or B sites significantly affects the surface activity and enhances the catalysis efficacy. Herein, B-site nickel-doped lanthanum cerate (LaCe1-xNixO3±δ) nanopowders were applied as ORR indicators in high-temperature electrochemical impedance spectroscopy for solid-oxide fuel cell (SOFC) tests and in cyclic voltammetric OER investigations in alkaline medium. The integration into SOFC applications, via solid-state EIS in a co-pressed three-layered cell with LCNiO as cathode, is investigated in an oxygen–methane environment and reveals augmented conductivity with temperatures of 700–850°C. The higher electrokinetic parameters—including diffusion coefficients, Do heterogeneous rate constant, ko, and peak current density for OER in KOH-methanol at a LCNiO-9-modified glassy carbon electrode—serve as robust gauges of catalytic performance. CV indicators and EIS conductivities of LaCe1-xNixO3±δ nanomaterials indicate promising potencies for electrocatalytic energy applications. Copyright © 2022 Butt, Erum, Mujtaba, Medvedev and Janjua.
Quaid-i-Azam University, QAU Higher Education Commision, Pakistan, HEC, (14-4768) The authors highly acknowledge the financial support from Quaid-i-Azam University, Islamabad, and the Higher Education Commission of Pakistan under project No. 14-4768. |
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| Дата |
2024-04-08T11:05:38Z
2024-04-08T11:05:38Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Butt, TM, Erum, S, Mujtaba, A, Medvedev, D & Janjua, NK 2022, 'Nickel-doped lanthanum cerate nanomaterials as highly active electrocatalysts', Frontiers in Chemistry, Том. 10, 1064906. https://doi.org/10.3389/fchem.2022.1064906
Butt, T. M., Erum, S., Mujtaba, A., Medvedev, D., & Janjua, N. K. (2022). Nickel-doped lanthanum cerate nanomaterials as highly active electrocatalysts. Frontiers in Chemistry, 10, [1064906]. https://doi.org/10.3389/fchem.2022.1064906 2296-2646 Final All Open Access; Gold Open Access; Green Open Access https://www.frontiersin.org/articles/10.3389/fchem.2022.1064906/pdf https://www.frontiersin.org/articles/10.3389/fchem.2022.1064906/pdf http://elar.urfu.ru/handle/10995/131190 10.3389/fchem.2022.1064906 85143528407 000894801900001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
Frontiers Media S.A.
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| Источник |
Frontiers in Chemistry
Frontiers in Chemistry |
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