Reduction of NOxover Fe/ZSM-5 Catalysts: Adsorption Complexes and Their Reactivity toward Hydrocarbons

Direct decomposition of NO by microwave heating over Fe/NaZSM-5

“…Bond observed that a local heating action existed at the interface of the two phases which had different abilities for absorbing microwave, and this action could promote a rapid increasing of the temperature of one phase, even could lead to rapid decomposition of this phase in MH [18]. It has been proved that FeZSM-5 has a good ability to adsorb NO [19,20], and the iron species have a special ability to absorb microwave energy. When NO is adsorbed on the catalyst of Fe, it will form a complex with Fe species.…”

Catalysis Research of Relevance to Carbon Management: Progress, Challenges, and Opportunities

“…Likewise, information on the reaction mechanisms and energetics of the reaction steps is also incomplete. [247][248][249][250] Alumina-based NO x reduction catalysts have been shown to exhibit high activity and selectivity at temperatures above 425°C. At high temperatures, their activities are higher than zeolite-based catalysts (e.g., Figure 20 for a SnO 2 /Al 2 O 3 catalyst); [251][252][253] however, they also have a relatively narrow operating temperature window of about 150°C.…”

Evolution of Fe species during the synthesis of over-exchanged Fe/ZSM5 obtained by chemical vapor deposition of FeCl3

“…Iron loaded zeolites have recently attracted renewed attention due to their outstanding catalytic properties [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. In particular, over-exchanged Fe/ZSM5 (Fe/Al molar ratio > 0.5) obtained through the chemical vapor deposition (CVD) of anhydrous iron trichloride has been reported to be very efficient in the selective catalytic reduction of nitrogen oxides using HydroCarbons (HC-SCR).…”