Files in this item
Ni-rGO-zeolite nanocomposite : an efficient heterogeneous catalyst for one-pot synthesis of triazoles in water
Item metadata
dc.contributor.author | Choudhury, Prasun | |
dc.contributor.author | Chattopadhyay, Shreyasi | |
dc.contributor.author | De, Goutam | |
dc.contributor.author | Basu, Basudeb | |
dc.date.accessioned | 2021-05-10T13:30:15Z | |
dc.date.available | 2021-05-10T13:30:15Z | |
dc.date.issued | 2021-03-19 | |
dc.identifier.citation | Choudhury , P , Chattopadhyay , S , De , G & Basu , B 2021 , ' Ni-rGO-zeolite nanocomposite : an efficient heterogeneous catalyst for one-pot synthesis of triazoles in water ' , Materials Advances , vol. Advance Article . https://doi.org/10.1039/d1ma00143d | en |
dc.identifier.issn | 2633-5409 | |
dc.identifier.other | PURE: 274092337 | |
dc.identifier.other | PURE UUID: d76ba0bb-ee15-476f-9530-f9c4e3bac28b | |
dc.identifier.other | RIS: urn:103F659FD887EA12D746C40879861E85 | |
dc.identifier.other | WOS: 000639036800001 | |
dc.identifier.other | Scopus: 85105883518 | |
dc.identifier.uri | https://hdl.handle.net/10023/23142 | |
dc.description | Financial support from SERB, New Delhi is gratefully acknowledged (Grant No EMR/2015/000549). PC and SC thanks UGC, New Delhi, for Senior Research Fellowship under UGC-NET. | en |
dc.description.abstract | An important group of pharmaceutical materials, 1,2,3-triazoles, has been synthesised using a Ni-based nanocomposite catalyst (Ni-rGO-zeolite) through azide alkyne cycloaddition (NiAAC). First, a GO-zeolite hybrid was prepared through protonation of a Na-Y-zeolite by H+ ions originating from the -COOH groups of GO. Subsequently the GO-zeolite was treated with Ni-acetate solvothermally in the presence of NaBH4 (reducing atmosphere). Under the solvothermal conditions a significant part of the incorporated Ni ions in the GO-zeolite were reduced to Ni(0) and simultaneously GO was transformed into rGO. The resulting ternary nanocomposite, Ni-rGO-zeolite, serves as a highly efficient heterogeneous catalyst, and shows excellent regioselectivity forming 1,4-disubstituted-1,2,3-triazoles as the sole product at a low loading of the nickel (similar to 2.6 mol% with respect to the substrate) with recyclability, and without any significant leaching of the metal. In addition, the Ni-rGO-zeolite exhibits enhanced efficiency under aqueous conditions, proficiency with varying substrates and overcomes some of the shortcomings of the previously reported limited number of Ni-based and other catalysts. The catalytic process is believed to involve the active Ni(0) species, which is stabilized by electron rich rGO that is supported on the microporous high-surface-area zeolite. | |
dc.format.extent | 9 | |
dc.language.iso | eng | |
dc.relation.ispartof | Materials Advances | en |
dc.rights | Copyright © 2021 The Author(s). Published by the Royal Society of Chemistry. article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. | en |
dc.subject | QD Chemistry | en |
dc.subject | T-NDAS | en |
dc.subject.lcc | QD | en |
dc.title | Ni-rGO-zeolite nanocomposite : an efficient heterogeneous catalyst for one-pot synthesis of triazoles in water | en |
dc.type | Journal article | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. School of Chemistry | en |
dc.identifier.doi | https://doi.org/10.1039/d1ma00143d | |
dc.description.status | Peer reviewed | en |
This item appears in the following Collection(s)
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.