TY - JOUR

T1 - Grafting reactions of perovskite-like bismuth titanate H2K0.5Bi2.5Ti4O13·H2O with n-alcohols

AU - Minich, Iana A.

AU - Silyukov, Oleg I.

AU - Mazur, Anton S.

AU - Zvereva, Irina A.

N1 - Funding Information: The study was supported by the Russian Foundation for Basic Research (grant № 18-03-00915 ). Iana A. Minich also thanks the Russian Foundation for Basic Research for its financial support (grant № 19-33-90050 ). Authors are also grateful to Saint Petersburg State University Research Park: Center for X-ray Diffraction Studies, Center for Optical and Laser Materials Research, Center for Chemical Analysis and Materials Research, Center for Thermal Analysis and Calorimetry, Magnetic Resonance Research Centre, Interdisciplinary Center for Nanotechnology and SDBSWeb: https://sdbs.db.aist.go.jp (National Institute of Advanced Industrial Science and Technology, 10.02.2020). Publisher Copyright: © 2020 Elsevier Ltd and Techna Group S.r.l. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/12/15

Y1 - 2020/12/15

N2 - The possibility to prepare new organic-inorganic hybrids by grafting reactions of the protonated perovskite-like oxide H2K0.5Bi2.5Ti4O13·H2O (HKBT4·H2O) with n-alcohols (with alkyl chain length nc = 1–4, 6, 10) has been studied. The reactions have been conducted by grafting using preliminarily n-butylamine and n-octylamine intercalated derivatives of HKBT4 and in the case of n-decanol, the alcohol exchange approach of shorter-chain alcohols substitution has been also performed. Grafting reactions have been conducted at various temperatures with a view to fully substitution the n-alkylamine by n-alcohols. The obtained samples have been characterized by powder XRD analysis, NMR spectroscopy, CHN analysis, and SEM. The thermal stability has been studied by thermogravimetric analysis. It was shown that the pure methanol and ethanol hybrids could not be obtained in conditions tested and the optimal conditions of preparation of other n-alcohol hybrids have been established. In addition, it was shown that the HKBT4 compound is easily subjected to bismuth reduction at high temperatures, leading to the destruction of the perovskite-like structure.

AB - The possibility to prepare new organic-inorganic hybrids by grafting reactions of the protonated perovskite-like oxide H2K0.5Bi2.5Ti4O13·H2O (HKBT4·H2O) with n-alcohols (with alkyl chain length nc = 1–4, 6, 10) has been studied. The reactions have been conducted by grafting using preliminarily n-butylamine and n-octylamine intercalated derivatives of HKBT4 and in the case of n-decanol, the alcohol exchange approach of shorter-chain alcohols substitution has been also performed. Grafting reactions have been conducted at various temperatures with a view to fully substitution the n-alkylamine by n-alcohols. The obtained samples have been characterized by powder XRD analysis, NMR spectroscopy, CHN analysis, and SEM. The thermal stability has been studied by thermogravimetric analysis. It was shown that the pure methanol and ethanol hybrids could not be obtained in conditions tested and the optimal conditions of preparation of other n-alcohol hybrids have been established. In addition, it was shown that the HKBT4 compound is easily subjected to bismuth reduction at high temperatures, leading to the destruction of the perovskite-like structure.

KW - Inorganic-organic hybrids

KW - Perovskites

KW - Powders: solid-state reaction

KW - Thermal properties

KW - Transition metal oxides

KW - MICROWAVE-ASSISTED FUNCTIONALIZATION

KW - ALKYLAMINES

KW - PROTONATED FORM

KW - INTERCALATION

KW - PHOTOCATALYTIC ACTIVITY

KW - AURIVILLIUS PHASE BI2SRTA2O9

KW - INTERLAYER SURFACE

KW - OXIDES

KW - LAYERED PEROVSKITE

KW - DERIVATIVES

UR - http://www.scopus.com/inward/record.url?scp=85088973731&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/69c671ff-9ea6-36f0-8810-17cdc5fb4373/

U2 - 10.1016/j.ceramint.2020.07.204

DO - 10.1016/j.ceramint.2020.07.204

M3 - Article

AN - SCOPUS:85088973731

VL - 46

SP - 29373

EP - 29381

JO - Ceramics International

JF - Ceramics International

SN - 0272-8842

IS - 18

ER -