Influence of alkali metal cations/type of activator on the structure of alkali-activated fly ash - ATR-FTIR studies

被引：80
作者：
Krol, M. [1 ]
Rozek, P. [1 ]
Chlebda, D. [2 ]
Mozgawa, W. [1 ]
机构：
[1] AGH Univ Sci & Technol, Fac Mat Sci & Ceram, 30 Mickiewicza Av, PL-30059 Krakow, Poland
[2] Jagiellonian Univ, Fac Chem, Gronostajowa 2, PL-30387 Krakow, Poland
来源：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2018年 / 198卷
关键词：
Geopolymer; Mechanism of alkali-activation; Coal fly ash; In-situ measurements; IR SPECTROSCOPY; GEOPOLYMERS; ZEOLITES; METAKAOLIN; MECHANISM; BEHAVIOR;
D O I：
10.1016/j.saa.2018.02.067
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
Coal fly ash as a secondary aluminosiliceous raw material that is commonly used in the so-called geopolymerization process has been activated with different alkali hydroxides solutions: LiOH, NaOH and KOH. Changes in the aluminosilicate structure of the material during alkali-activation have been analyzed in detail on the basis of ATR/FT-IR spectra. These changes mainly affect both the integral intensity and FWHM of bands in the range of 1200-950 cm(-1). however dehydration and carbonation process can be also analyzed based on obtaining results. (C) 2018 Elsevier B.V. All rights reserved.
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页码：33 / 37
页数：5
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