Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts

[Image: see text] Oxidative coupling of methane (OCM) over La(1–x)M(x)AlO(3−δ) (M = Ca, Sr, Ba; x = 0, 0.1, 0.2, 0.3) in an electric field at low temperature (423 K) was investigated. Among the tested catalysts, the La(0.7)Ca(0.3)AlO(3−δ) catalyst showed the highest performance in terms of C(2)H(6)...

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Autores principales: Sato, Ayaka, Ogo, Shuhei, Takeno, Yuna, Takise, Kent, Seo, Jeong Gil, Sekine, Yasushi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2019
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648777/
https://www.ncbi.nlm.nih.gov/pubmed/31460139
http://dx.doi.org/10.1021/acsomega.9b00594
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author Sato, Ayaka
Ogo, Shuhei
Takeno, Yuna
Takise, Kent
Seo, Jeong Gil
Sekine, Yasushi
author_facet Sato, Ayaka
Ogo, Shuhei
Takeno, Yuna
Takise, Kent
Seo, Jeong Gil
Sekine, Yasushi
author_sort Sato, Ayaka
collection PubMed
description [Image: see text] Oxidative coupling of methane (OCM) over La(1–x)M(x)AlO(3−δ) (M = Ca, Sr, Ba; x = 0, 0.1, 0.2, 0.3) in an electric field at low temperature (423 K) was investigated. Among the tested catalysts, the La(0.7)Ca(0.3)AlO(3−δ) catalyst showed the highest performance in terms of C(2)H(6) + C(2)H(4) yield (11.1%). Surface mobile oxygen species (O(2)(2–) or O(–)), which were considered as active oxygen species for the OCM reaction, increased with increasing Ca doping amount, and thereby the La(0.7)Ca(0.3)AlO(3−δ) catalyst showed the best catalytic activity.
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spelling pubmed-66487772019-08-27 Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts Sato, Ayaka Ogo, Shuhei Takeno, Yuna Takise, Kent Seo, Jeong Gil Sekine, Yasushi ACS Omega [Image: see text] Oxidative coupling of methane (OCM) over La(1–x)M(x)AlO(3−δ) (M = Ca, Sr, Ba; x = 0, 0.1, 0.2, 0.3) in an electric field at low temperature (423 K) was investigated. Among the tested catalysts, the La(0.7)Ca(0.3)AlO(3−δ) catalyst showed the highest performance in terms of C(2)H(6) + C(2)H(4) yield (11.1%). Surface mobile oxygen species (O(2)(2–) or O(–)), which were considered as active oxygen species for the OCM reaction, increased with increasing Ca doping amount, and thereby the La(0.7)Ca(0.3)AlO(3−δ) catalyst showed the best catalytic activity. American Chemical Society 2019-06-17 /pmc/articles/PMC6648777/ /pubmed/31460139 http://dx.doi.org/10.1021/acsomega.9b00594 Text en Copyright © 2019 American Chemical Society This is an open access article published under a Creative Commons Attribution (CC-BY) License (http://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html) , which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
spellingShingle Sato, Ayaka
Ogo, Shuhei
Takeno, Yuna
Takise, Kent
Seo, Jeong Gil
Sekine, Yasushi
Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts
title Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts
title_full Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts
title_fullStr Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts
title_full_unstemmed Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts
title_short Electric Field and Mobile Oxygen Promote Low-Temperature Oxidative Coupling of Methane over La(1–x)Ca(x)AlO(3−δ) Perovskite Catalysts
title_sort electric field and mobile oxygen promote low-temperature oxidative coupling of methane over la(1–x)ca(x)alo(3−δ) perovskite catalysts
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6648777/
https://www.ncbi.nlm.nih.gov/pubmed/31460139
http://dx.doi.org/10.1021/acsomega.9b00594
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