Details
| Original language | English |
|---|---|
| Pages (from-to) | 73-79 |
| Number of pages | 7 |
| Journal | Microporous and Mesoporous Materials |
| Volume | 222 |
| Early online date | 22 Oct 2015 |
| Publication status | Published - 1 Mar 2016 |
Abstract
The present investigation is a case study of zeolite formation without external heating. The energy of the exothermic reaction of aluminum in aqueous NaOH solution was utilized as the thermal energy source of the whole crystallization process. Zeolites of structure types LTA, LTN, SOD and CAN were observed under insertion of aluminum, NaOH and sodium silicate as well as NaNO3 in the case of CAN. All products were obtained already after 4 h reaction time in a thermos beaker. The samples were only dried under open air over night to prevent any effect of a drying procedure at elevated temperature in a cabinet dryer. Analyses results according to XRD, SEM and FTIR were presented and discussed. Further modifications like insertion of aluminum waste material and the collection of the byproduct hydrogen are important upgrades in future to develop a cost effective technique on the basis of the proposed autothermal reaction with Al.
Keywords
- Autothermal synthesis, LTN, SOD and CAN, Synthesis modification, Zeolites LTA
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Microporous and Mesoporous Materials, Vol. 222, 01.03.2016, p. 73-79.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On the autothermal synthesis of zeolites
AU - Buhl, J. Ch
PY - 2016/3/1
Y1 - 2016/3/1
N2 - The present investigation is a case study of zeolite formation without external heating. The energy of the exothermic reaction of aluminum in aqueous NaOH solution was utilized as the thermal energy source of the whole crystallization process. Zeolites of structure types LTA, LTN, SOD and CAN were observed under insertion of aluminum, NaOH and sodium silicate as well as NaNO3 in the case of CAN. All products were obtained already after 4 h reaction time in a thermos beaker. The samples were only dried under open air over night to prevent any effect of a drying procedure at elevated temperature in a cabinet dryer. Analyses results according to XRD, SEM and FTIR were presented and discussed. Further modifications like insertion of aluminum waste material and the collection of the byproduct hydrogen are important upgrades in future to develop a cost effective technique on the basis of the proposed autothermal reaction with Al.
AB - The present investigation is a case study of zeolite formation without external heating. The energy of the exothermic reaction of aluminum in aqueous NaOH solution was utilized as the thermal energy source of the whole crystallization process. Zeolites of structure types LTA, LTN, SOD and CAN were observed under insertion of aluminum, NaOH and sodium silicate as well as NaNO3 in the case of CAN. All products were obtained already after 4 h reaction time in a thermos beaker. The samples were only dried under open air over night to prevent any effect of a drying procedure at elevated temperature in a cabinet dryer. Analyses results according to XRD, SEM and FTIR were presented and discussed. Further modifications like insertion of aluminum waste material and the collection of the byproduct hydrogen are important upgrades in future to develop a cost effective technique on the basis of the proposed autothermal reaction with Al.
KW - Autothermal synthesis
KW - LTN
KW - SOD and CAN
KW - Synthesis modification
KW - Zeolites LTA
UR - http://www.scopus.com/inward/record.url?scp=84945305101&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2015.10.004
DO - 10.1016/j.micromeso.2015.10.004
M3 - Article
AN - SCOPUS:84945305101
VL - 222
SP - 73
EP - 79
JO - Microporous and Mesoporous Materials
JF - Microporous and Mesoporous Materials
SN - 1387-1811
ER -