Intercalation of an oxalatooxoniobate complex into layered double hydroxide and layered zinc hydroxide nitrate

被引：62

作者：

Carbajal Arizaga, Gregorio Guadalupe ^{[1
]}

Ferreira da Costa Gardolinski, Jose Eduardo ^{[2
]}

Schreiner, Wido Herwig ^{[3
]}

Wypych, Fernando ^{[1
]}

机构：

[1] Univ Fed Parana, Dept Chem, Ctr Pesquisas Quim Aplicada, CEPESQ, BR-81531990 Curitiba, Pr, Brazil

[2] Univ Fed Parana, Dept Geol, Lab Anal Minerais & Rochas, LAMIR, BR-81531990 Curitiba, Pr, Brazil

[3] Univ Fed Parana, Lab Superficies & Interfaces, BR-81531990 Curitiba, Pr, Brazil

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2009年 / 330卷 / 02期

关键词：

Layered double hydroxide; Layered hydroxide salt; Intercalation; Zinc hydroxide nitrate; Niobium complex; COBALT OXIDE SPINELS; CHEMICAL-MODIFICATION; INFRARED-SPECTRA; RAMAN-SPECTRA; ATR-FTIR; SPECTROSCOPY; CATALYSTS; SALTS; TRANSITION; MALONATE;

D O I：

10.1016/j.jcis.2008.10.025

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A Zn/Al layered double hydroxide with molar ratio of 3 was prepared by coprecipitation in alkaline pH and used as a matrix to intercalate the ionic complex diaquadioxalatooxoniobate(V) (DDON), derived from NH4[NbO(C2O4)(2)(H2O)(2)]center dot 2H(2)O. In a similar way, the layered zinc hydroxide nitrate, Zn-5(OH)(8)(NO3)(2)center dot 2H(2)O, was synthesized, preexpanded with azelate ions (-OOC(CH2)(7)COO-), and then intercalated with the niobium complex. For both layered matrices, the results from X-ray powder diffactometry, Fourier transform infrared spectroscopy, and thermal analysis (TG/s-DTA) indicate the presence of the oxalate ion. In addition, results from X-ray photoelectron and Raman spectroscopy indicate the presence of the niobium center bonded to oxygen atoms. Finally, diffuse reflectance UV-vis spectroscopy suggests that the niobium centers are coordinated to oxalate ions. This is the first report of the intercalation of niobium into a layered matrix. (c) 2008 Elsevier Inc. All rights reserved.

引用

页码：352 / 358

页数：7

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