Catalyzed decomposition of N2O on metal oxide supports

Nitrous Oxide Decomposition Over MCO3–Co3O4 (M = Ca, Sr, Ba) Catalysts

“…Based on these experimental observations a charge-transfer mechanism was suggested [54]. Similar mechanism is reported in the recent literature for direct nitrous oxide decomposition [24,34,55] as well as during its oscillation [56]. The first step in this mechanism involves N 2 O adsorption on active site, which is followed by decomposition to nitrogen gas and adsorbed oxygen.…”

A study on N2O catalytic decomposition over Co/MgO catalysts

“…For the best Co/MgO catalyst, the reaction temperature attained 50 and 100% N 2 O conversion was around 675 and 750 K, respectively. The activity is comparable with other Co-based catalysts, over which a 100% N 2 O conversion was attained mostly in the temperature range of 700-773 K [19][20][21]25,26]. The TPR results of cobalt in different supports (not shown here) exhibit that there are no direct relationship between the redox property of cobalt and the catalytic activity.…”

“…supported noble metals [3][4][5], mixed oxides with different structure [6][7][8][9][10], iron zeolites [11][12][13][14][15], have been investigated for N 2 O decomposition. Supported cobalt catalysts have received considerable attention due to high activity [16][17][18][19][20][21][22][23][24][25][26]. da Cruz et al [16] reported the studies of N 2 O decomposition on Co-ZSM-5 prepared with different methods and claimed that isolated Co 2+ ions showed high activity.…”

An investigation into the effect of Cs promotion on the catalytic activity of NiO in the direct decomposition of N2O

“…However, most of the catalytic systems are not efficient for the commercial exploitation [1,8]. The most active catalysts for N 2 O decomposition consist of metal exchanged zeolites [6,9] or mixed metal oxides [10]. The main problem with the decomposition catalysts is that their activities are severely inhibited by the presence of oxygen and water vapor.…”