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Designed Reversible Alkylamine Intercalation–Deintercalation in the Layered Perovskite‐Type Oxide KCa 2 Nb 3 O 10
Author(s) -
Sun Chuansheng,
Peng Peng,
Zhu Lirong,
Zheng Wenjun,
Zhao Yongnan
Publication year - 2008
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800271
Subject(s) - chemistry , intercalation (chemistry) , raman spectroscopy , protonation , perovskite (structure) , inorganic chemistry , thermogravimetric analysis , oxide , ion exchange , crystallography , ion , organic chemistry , physics , optics
Reactions have been designed to verify the reversibility of butylamine intercalation–deintercalation in the layered perovskite‐type oxide KCa 2 Nb 3 O 10 . The reactions include ion exchange to form HCa 2 Nb 3 O 10 · 1.5H 2 O, butylamine intercalation for producing C 4 H 9 NH 3 Ca 2 Nb 3 O 10 , transformation of C 4 H 9 NH 3 Ca 2 Nb 3 O 10 into HCONH 3 Ca 2 Nb 3 O 10 by formamide substitution and conversion of HCONH 3 Ca 2 Nb 3 O 10 into HCa 2 Nb 3 O 10 · 1.5H 2 O again by ion exchange. The complete reaction cycles were monitored by XRD, Raman spectroscopy, thermogravimetric (TG) and elemental analysis, and the resulting information was used to propose the structure evolution and to determine the organic components of the products. The well‐matched powder X‐ray diffraction (XRD) patterns and Raman spectra between the initial and recovered protonated materials confirmed that they have identical structural features of a protonated triple‐layered perovskite. The C, H and N elemental analysis results and TG data indicate that the regenerated layered perovskite‐type oxides also have a high capacity for alkylamine intercalation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)