Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†

Abstract The plasma-mediated decomposition of volatile organic compounds has previously been investigated in the gas phase with metal oxides as heterogeneous catalysts. While the reactive species in plasma itself are well investigated, very little is known about the influence of metal catalysts in s...

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Autores principales:	Dariusz Śmiłowicz, Friederike Kogelheide, Anna Lena Schöne, Katharina Stapelmann, Peter Awakowicz, Nils Metzler-Nolte
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/50034d9ca002418f95294199cf01fd2e
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spelling	oai:doaj.org-article:50034d9ca002418f95294199cf01fd2e2021-12-02T11:43:51ZCatalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†10.1038/s41598-020-78683-72045-2322https://doaj.org/article/50034d9ca002418f95294199cf01fd2e2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78683-7https://doaj.org/toc/2045-2322Abstract The plasma-mediated decomposition of volatile organic compounds has previously been investigated in the gas phase with metal oxides as heterogeneous catalysts. While the reactive species in plasma itself are well investigated, very little is known about the influence of metal catalysts in solution. Here, we present initial investigations on the time-dependent plasma-supported oxidation of benzyl alcohol, benzaldehyde and phenol in the presence of molecular iron complexes in solution. Products were identified by HPLC, ESI-MS, FT-IR, and $$^{1}\hbox {H NMR}$$ 1 H NMR spectroscopy. Compared to metal-free oxidation of the substrates, which is caused by reactive oxygen species and leads to a mixture of products, the metal-mediated reactions lead to one product cleanly, and faster than in the metal-free reactions. Most noteworthy, even catalytic amounts of metal complexes induce these clean transformations. The findings described here bear important implications for plasma-supported industrial waste transformations, as well as for plasma-mediated applications in biomedicine, given the fact that iron is the most abundant redox-active metal in the human body.Dariusz ŚmiłowiczFriederike KogelheideAnna Lena SchöneKatharina StapelmannPeter AwakowiczNils Metzler-NolteNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Dariusz Śmiłowicz Friederike Kogelheide Anna Lena Schöne Katharina Stapelmann Peter Awakowicz Nils Metzler-Nolte Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
description	Abstract The plasma-mediated decomposition of volatile organic compounds has previously been investigated in the gas phase with metal oxides as heterogeneous catalysts. While the reactive species in plasma itself are well investigated, very little is known about the influence of metal catalysts in solution. Here, we present initial investigations on the time-dependent plasma-supported oxidation of benzyl alcohol, benzaldehyde and phenol in the presence of molecular iron complexes in solution. Products were identified by HPLC, ESI-MS, FT-IR, and $$^{1}\hbox {H NMR}$$ 1 H NMR spectroscopy. Compared to metal-free oxidation of the substrates, which is caused by reactive oxygen species and leads to a mixture of products, the metal-mediated reactions lead to one product cleanly, and faster than in the metal-free reactions. Most noteworthy, even catalytic amounts of metal complexes induce these clean transformations. The findings described here bear important implications for plasma-supported industrial waste transformations, as well as for plasma-mediated applications in biomedicine, given the fact that iron is the most abundant redox-active metal in the human body.
format	article
author	Dariusz Śmiłowicz Friederike Kogelheide Anna Lena Schöne Katharina Stapelmann Peter Awakowicz Nils Metzler-Nolte
author_facet	Dariusz Śmiłowicz Friederike Kogelheide Anna Lena Schöne Katharina Stapelmann Peter Awakowicz Nils Metzler-Nolte
author_sort	Dariusz Śmiłowicz
title	Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
title_short	Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
title_full	Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
title_fullStr	Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
title_full_unstemmed	Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
title_sort	catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/50034d9ca002418f95294199cf01fd2e
work_keys_str_mv	AT dariuszsmiłowicz catalyticoxidationofsmallorganicmoleculesbycoldplasmainsolutioninthepresenceofmolecularironcomplexes AT friederikekogelheide catalyticoxidationofsmallorganicmoleculesbycoldplasmainsolutioninthepresenceofmolecularironcomplexes AT annalenaschone catalyticoxidationofsmallorganicmoleculesbycoldplasmainsolutioninthepresenceofmolecularironcomplexes AT katharinastapelmann catalyticoxidationofsmallorganicmoleculesbycoldplasmainsolutioninthepresenceofmolecularironcomplexes AT peterawakowicz catalyticoxidationofsmallorganicmoleculesbycoldplasmainsolutioninthepresenceofmolecularironcomplexes AT nilsmetzlernolte catalyticoxidationofsmallorganicmoleculesbycoldplasmainsolutioninthepresenceofmolecularironcomplexes
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Catalytic oxidation of small organic molecules by cold plasma in solution in the presence of molecular iron complexes†

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