Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions

Abstract In this article, palladated-magnetic nitrogen doped porous carbon was prepared from nano magnetic γ-Fe2O3 hollow sphere (h-Fe2O3) with high specific surface area and pore volume. To the purpose, initially h-Fe2O3 was prepared and covered with glucose via hydrothermal treatment with subseque...

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Autores principales:	Masoume Malmir, Majid M. Heravi, Zahra Amiri, Kosar Kafshdarzadeh
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/341950cadb6e4d07bf10238a4bbec974
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spelling	oai:doaj.org-article:341950cadb6e4d07bf10238a4bbec9742021-11-21T12:25:05ZMagnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions10.1038/s41598-021-99679-x2045-2322https://doaj.org/article/341950cadb6e4d07bf10238a4bbec9742021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99679-xhttps://doaj.org/toc/2045-2322Abstract In this article, palladated-magnetic nitrogen doped porous carbon was prepared from nano magnetic γ-Fe2O3 hollow sphere (h-Fe2O3) with high specific surface area and pore volume. To the purpose, initially h-Fe2O3 was prepared and covered with glucose via hydrothermal treatment with subsequent polymerization of organic shell. The polymerization of melamine-resorcinol–formaldehyde (MRF) was achieved in the presence of Cl-functionalized glucose coated h-Fe2O3 (h-Fe2O3@glu-MRF). Next, the prepared magnetic core–shell hollow sphere was palladated followed by carbonization to yield Pd@h-Fe2O3@C introducing more pores in its structure. The resulted compound, Pd@h-Fe2O3@C, was fully characterized, showing that carbonization process expressively increased the specific surface area. The resulted Pd@h-Fe2O3@C was successfully used for promoting C–C coupling reactions under mild reaction conditions as a heterogeneous catalyst and its activity was compared with some prepared control catalysts. This novel catalyst was magnetically separated simply by a magnet bar and recycled and reused at least in five consecutive runs, without considerable loss of its activity. It is note mentioning that, high recyclability with low Pd leaching are another gains of this protocol.Masoume MalmirMajid M. HeraviZahra AmiriKosar KafshdarzadehNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Masoume Malmir Majid M. Heravi Zahra Amiri Kosar Kafshdarzadeh Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions
description	Abstract In this article, palladated-magnetic nitrogen doped porous carbon was prepared from nano magnetic γ-Fe2O3 hollow sphere (h-Fe2O3) with high specific surface area and pore volume. To the purpose, initially h-Fe2O3 was prepared and covered with glucose via hydrothermal treatment with subsequent polymerization of organic shell. The polymerization of melamine-resorcinol–formaldehyde (MRF) was achieved in the presence of Cl-functionalized glucose coated h-Fe2O3 (h-Fe2O3@glu-MRF). Next, the prepared magnetic core–shell hollow sphere was palladated followed by carbonization to yield Pd@h-Fe2O3@C introducing more pores in its structure. The resulted compound, Pd@h-Fe2O3@C, was fully characterized, showing that carbonization process expressively increased the specific surface area. The resulted Pd@h-Fe2O3@C was successfully used for promoting C–C coupling reactions under mild reaction conditions as a heterogeneous catalyst and its activity was compared with some prepared control catalysts. This novel catalyst was magnetically separated simply by a magnet bar and recycled and reused at least in five consecutive runs, without considerable loss of its activity. It is note mentioning that, high recyclability with low Pd leaching are another gains of this protocol.
format	article
author	Masoume Malmir Majid M. Heravi Zahra Amiri Kosar Kafshdarzadeh
author_facet	Masoume Malmir Majid M. Heravi Zahra Amiri Kosar Kafshdarzadeh
author_sort	Masoume Malmir
title	Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions
title_short	Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions
title_full	Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions
title_fullStr	Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions
title_full_unstemmed	Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions
title_sort	magnetic composite of γ-fe2o3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for c–c coupling reactions
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/341950cadb6e4d07bf10238a4bbec974
work_keys_str_mv	AT masoumemalmir magneticcompositeofgfe2o3hollowsphereandpalladiumdopednitrogenrichmesoporouscarbonasarecoverablecatalystforcccouplingreactions AT majidmheravi magneticcompositeofgfe2o3hollowsphereandpalladiumdopednitrogenrichmesoporouscarbonasarecoverablecatalystforcccouplingreactions AT zahraamiri magneticcompositeofgfe2o3hollowsphereandpalladiumdopednitrogenrichmesoporouscarbonasarecoverablecatalystforcccouplingreactions AT kosarkafshdarzadeh magneticcompositeofgfe2o3hollowsphereandpalladiumdopednitrogenrichmesoporouscarbonasarecoverablecatalystforcccouplingreactions
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Magnetic composite of γ-Fe2O3 hollow sphere and palladium doped nitrogen-rich mesoporous carbon as a recoverable catalyst for C–C coupling reactions

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