Čitaković, Nada

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Structural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite)

Kljajević, Ljiljana M.; Melichova, Zuzana; Stojmenović, Marija; Todorović, Bratislav Ž; Pavlović, Vladimir B.; Čitaković, Nada; Nenadović, Snežana S.

(Skopje : Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University, 2019) 

TY  - JOUR
AU  - Kljajević, Ljiljana M.
AU  - Melichova, Zuzana
AU  - Stojmenović, Marija
AU  - Todorović, Bratislav Ž
AU  - Pavlović, Vladimir B.
AU  - Čitaković, Nada
AU  - Nenadović, Snežana S.
PY  - 2019
UR  - https://mjcce.org.mk/index.php/MJCCE/article/view/1678
UR  - https://dais.sanu.ac.rs/123456789/7042
AB  - Geopolymers (GP) were successfully synthesized from metabentonite (MB), metadiatomite (MD) and metakaolinite (MK). Characterization of their phase structure and microstructure was performed by XRD, FTIR, SEM/EDX methods. A SEM micrograph of GPMD shows a homogeneous surface with some longitudinal cavities in the gel, and it is significantly different from the micrographs of the other two geopolymer samples, GPMB and GPMK. A considerable amount of unreacted particles, as well as the presence of pores in the geopolymer matrix of GPMK and GPMD, indicate an incomplete reaction in the system. Aluminosilicate inorganic polymers, geopolymers, are quasi solid electrolytes which possess a high electrical conductivity at room temperature in relation to materials of similar chemical composition. The highest conductivity was found for the sample obtained from GPMK, amounting to 2.14 × 10–2 Ω–1cm–1at 700 ºC. The corresponding activation energies of conductivity for this sample amounted to 0.33 eV in the temperature range of 500–700 ºC. The geopolymer synthesized from metakaolin has good ionic conductivity values, which recommends it for use as an alternative material for an SOFC (Solid Oxide Fuel Cell).
PB  - Skopje : Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Structural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite)
SP  - 283
EP  - 292
VL  - 38
IS  - 2
DO  - 10.20450/mjcce.2019.1678
UR  - https://hdl.handle.net/21.15107/rcub_dais_7042
ER  - 
@article{
author = "Kljajević, Ljiljana M. and Melichova, Zuzana and Stojmenović, Marija and Todorović, Bratislav Ž and Pavlović, Vladimir B. and Čitaković, Nada and Nenadović, Snežana S.",
year = "2019",
abstract = "Geopolymers (GP) were successfully synthesized from metabentonite (MB), metadiatomite (MD) and metakaolinite (MK). Characterization of their phase structure and microstructure was performed by XRD, FTIR, SEM/EDX methods. A SEM micrograph of GPMD shows a homogeneous surface with some longitudinal cavities in the gel, and it is significantly different from the micrographs of the other two geopolymer samples, GPMB and GPMK. A considerable amount of unreacted particles, as well as the presence of pores in the geopolymer matrix of GPMK and GPMD, indicate an incomplete reaction in the system. Aluminosilicate inorganic polymers, geopolymers, are quasi solid electrolytes which possess a high electrical conductivity at room temperature in relation to materials of similar chemical composition. The highest conductivity was found for the sample obtained from GPMK, amounting to 2.14 × 10–2 Ω–1cm–1at 700 ºC. The corresponding activation energies of conductivity for this sample amounted to 0.33 eV in the temperature range of 500–700 ºC. The geopolymer synthesized from metakaolin has good ionic conductivity values, which recommends it for use as an alternative material for an SOFC (Solid Oxide Fuel Cell).",
publisher = "Skopje : Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Structural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite)",
pages = "283-292",
volume = "38",
number = "2",
doi = "10.20450/mjcce.2019.1678",
url = "https://hdl.handle.net/21.15107/rcub_dais_7042"
}
Kljajević, L. M., Melichova, Z., Stojmenović, M., Todorović, B. Ž., Pavlović, V. B., Čitaković, N.,& Nenadović, S. S.. (2019). Structural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite). in Macedonian Journal of Chemistry and Chemical Engineering
Skopje : Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss. Cyril & Methodius University., 38(2), 283-292.
https://doi.org/10.20450/mjcce.2019.1678
https://hdl.handle.net/21.15107/rcub_dais_7042
Kljajević LM, Melichova Z, Stojmenović M, Todorović BŽ, Pavlović VB, Čitaković N, Nenadović SS. Structural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite). in Macedonian Journal of Chemistry and Chemical Engineering. 2019;38(2):283-292.
doi:10.20450/mjcce.2019.1678
https://hdl.handle.net/21.15107/rcub_dais_7042 .
Kljajević, Ljiljana M., Melichova, Zuzana, Stojmenović, Marija, Todorović, Bratislav Ž, Pavlović, Vladimir B., Čitaković, Nada, Nenadović, Snežana S., "Structural and electrical properties of geopolymer materials based on different precursors (kaolin, bentonite and diatomite)" in Macedonian Journal of Chemistry and Chemical Engineering, 38, no. 2 (2019):283-292,
https://doi.org/10.20450/mjcce.2019.1678 .,
https://hdl.handle.net/21.15107/rcub_dais_7042 .
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