Cargando…

NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions

The change of atom density induced structural collapse in the transformation process from metal–organic frameworks (MOFs) to their inorganic counterparts is a major challenge to the achievement of porous hollow structures. Herein, we develop an amino acid-mediated strategy for transformation of NH(2...

Descripción completa

Detalles Bibliográficos
Autores principales: Gu, Zhizhi, Chen, Liyong, Li, Xuezhao, Chen, Lin, Zhang, Yingyue, Duan, Chunying
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6383330/
https://www.ncbi.nlm.nih.gov/pubmed/30881634
http://dx.doi.org/10.1039/c8sc05450a
_version_ 1783396826729152512
author Gu, Zhizhi
Chen, Liyong
Li, Xuezhao
Chen, Lin
Zhang, Yingyue
Duan, Chunying
author_facet Gu, Zhizhi
Chen, Liyong
Li, Xuezhao
Chen, Lin
Zhang, Yingyue
Duan, Chunying
author_sort Gu, Zhizhi
collection PubMed
description The change of atom density induced structural collapse in the transformation process from metal–organic frameworks (MOFs) to their inorganic counterparts is a major challenge to the achievement of porous hollow structures. Herein, we develop an amino acid-mediated strategy for transformation of NH(2)-MIL-125(Ti) to successfully synthesize well-defined porous cages of titanium oxides (PCT) due to sheets serving as structural scaffolds. On this basis, PCT supported Pt-based nanoparticles are generated via a similar synthetic route, and are utilized to study the selective hydrogenation of carbonyl groups in α,β-unsaturated aldehydes, benefiting from the specific structures of PCT and tunable electronic structures of Pt mainly affected by doping with metal species such as Co. In this case, Pt–Co/PCT composites give 96% selectivity for cinnamyl alcohol at 100% conversion of cinnamaldehyde under 0.2 MPa H(2) and 80 °C for 3 h. This research would offer a promising strategy for important organic transformations in academic and industrial research to selectively synthesize high-value-added products.
format Online
Article
Text
id pubmed-6383330
institution National Center for Biotechnology Information
language English
publishDate 2018
publisher Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-63833302019-03-15 NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions Gu, Zhizhi Chen, Liyong Li, Xuezhao Chen, Lin Zhang, Yingyue Duan, Chunying Chem Sci Chemistry The change of atom density induced structural collapse in the transformation process from metal–organic frameworks (MOFs) to their inorganic counterparts is a major challenge to the achievement of porous hollow structures. Herein, we develop an amino acid-mediated strategy for transformation of NH(2)-MIL-125(Ti) to successfully synthesize well-defined porous cages of titanium oxides (PCT) due to sheets serving as structural scaffolds. On this basis, PCT supported Pt-based nanoparticles are generated via a similar synthetic route, and are utilized to study the selective hydrogenation of carbonyl groups in α,β-unsaturated aldehydes, benefiting from the specific structures of PCT and tunable electronic structures of Pt mainly affected by doping with metal species such as Co. In this case, Pt–Co/PCT composites give 96% selectivity for cinnamyl alcohol at 100% conversion of cinnamaldehyde under 0.2 MPa H(2) and 80 °C for 3 h. This research would offer a promising strategy for important organic transformations in academic and industrial research to selectively synthesize high-value-added products. Royal Society of Chemistry 2018-12-12 /pmc/articles/PMC6383330/ /pubmed/30881634 http://dx.doi.org/10.1039/c8sc05450a Text en This journal is © The Royal Society of Chemistry 2019 https://creativecommons.org/licenses/by-nc/3.0/This article is freely available. This article is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported Licence (CC BY-NC 3.0)
spellingShingle Chemistry
Gu, Zhizhi
Chen, Liyong
Li, Xuezhao
Chen, Lin
Zhang, Yingyue
Duan, Chunying
NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions
title NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions
title_full NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions
title_fullStr NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions
title_full_unstemmed NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions
title_short NH(2)-MIL-125(Ti)-derived porous cages of titanium oxides to support Pt–Co alloys for chemoselective hydrogenation reactions
title_sort nh(2)-mil-125(ti)-derived porous cages of titanium oxides to support pt–co alloys for chemoselective hydrogenation reactions
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6383330/
https://www.ncbi.nlm.nih.gov/pubmed/30881634
http://dx.doi.org/10.1039/c8sc05450a
work_keys_str_mv AT guzhizhi nh2mil125tiderivedporouscagesoftitaniumoxidestosupportptcoalloysforchemoselectivehydrogenationreactions
AT chenliyong nh2mil125tiderivedporouscagesoftitaniumoxidestosupportptcoalloysforchemoselectivehydrogenationreactions
AT lixuezhao nh2mil125tiderivedporouscagesoftitaniumoxidestosupportptcoalloysforchemoselectivehydrogenationreactions
AT chenlin nh2mil125tiderivedporouscagesoftitaniumoxidestosupportptcoalloysforchemoselectivehydrogenationreactions
AT zhangyingyue nh2mil125tiderivedporouscagesoftitaniumoxidestosupportptcoalloysforchemoselectivehydrogenationreactions
AT duanchunying nh2mil125tiderivedporouscagesoftitaniumoxidestosupportptcoalloysforchemoselectivehydrogenationreactions