Research Article

Surface Modification of Fly Ash for Active Catalysis

Table 1

EDX analysis of prepared catalysts at different pre-treatment temperatures.

CatalystPre-treatment
temperature (K)
K (at.%)F (at.%)Al (at.%)O (at.%)

Fly ashNIL0.09NIL4.1050.2
Al2O3/fly ash673 K0.09NIL9.257.6
KF/fly ash473 K2.31.74.756.7
673 K2.71.84.856.9
873 K2.21.34.856.8
KF/Al2O3/fly ash473 K8.511.39.252.4
673 K9.112.19.451.9
873 K8.111.79.352.0
KF/Al2O3473 K20.819.612.746.9
673 K22.120.812.944.2
873 K18.817.717.246.3

[at.%: atomic percentage].