In:
European Journal of Inorganic Chemistry, Wiley, Vol. 2018, No. 39 ( 2018-10-24), p. 4331-4337
Kurzfassung:
ATN‐type FeAPO‐39 molecular sieves with high iron content has been successfully synthesized under non‐solvent conditions, which is the first example of iron‐incorporated aluminophosphate with the ATN‐zeotype structure. The optimum synthetic conditions of this material were refined. It was found that the following synthetic conditions, i.e. a low P 2 O 5 /Al 2 O 3 ratio, a high DPA/Al 2 O 3 ratio (DPA: di‐ n ‐propylamine) and an elevated crystallization temperature, seemed to be more favorable for the non‐solvent synthesis of ATN phase. The composition and structural characteristics of resultant relatively pure FeAPO‐39 molecular sieves were intensively studied by XRD, FT‐IR, TG‐DTA, CHN elemental analysis, ICP‐AES, SEM, TEM, N 2 physisorption, UV/Vis diffuse reflectance spectroscopy and Mössbauer spectroscopy analyses. The iron content and zeolite yield of FeAPO‐39 material were found to be as high as 5.56 wt.‐% and 82.6 %, respectively. The results of FT‐IR, TG‐DTA and CHN elemental analysis indicate that DPA molecules may co‐direct the synthesis of ATN zeolites along with additional structure‐directing agent NH 4 + ions resulting from iron source. Owing to the specific structure‐directing role provided by iron source, the synthetic strategy presented here may find a potential application in the non‐solvent synthesis of other aluminosilicate and aluminophosphate zeolites with novel frameworks.
Materialart:
Online-Ressource
ISSN:
1434-1948
,
1099-0682
DOI:
10.1002/ejic.v2018.39
DOI:
10.1002/ejic.201800729
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2018
ZDB Id:
1475009-0
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