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- Title
Hydrothermally grown nano-manganese oxide on clinoptilolite for low-temperature propane-selective catalytic reduction of NO<sub>x</sub>.
- Authors
Dakdareh, Ali Mirzaei; Falamaki, Cavus; Ghasemian, Naser
- Abstract
A novel nano-size MnxOy/clinoptilolite catalyst of high activity for propane-SCR reaction of NOx at low temperatures has been synthesized by a hydrothermal method in a temperature range of 80-180 °C. The optimum synthesis temperature resulting in maximum NOx conversion was 150 °C. An optimum manganese oxide loading of 0.2 wt.% results in the best catalytic behavior (71% NOx conversion). All catalysts exhibited an optimal propane-SCR reaction temperature of 200 °C. The optimum catalyst produces no detectable CO (GHSV 27,000 h) at 200 °C. Manganese in the optimum catalyst exists as Mn2+ (37.8%), Mn3+ (14.2%), and Mn4+ (48%).Flake-like manganese oxide nanostructures (indicated by an arrow in the TEM picture) next to the clinoptilolite zeolite sheet-like crystals result in a promising low-temperature propane-selective catalytic reduction of NOx.
- Subjects
HYDROTHERMAL synthesis; MANGANESE oxides; CLINOPTILOLITE; CATALYTIC reduction; PROPANE
- Publication
Journal of Nanoparticle Research, 2018, Vol 20, Issue 11, p1
- ISSN
1388-0764
- Publication type
Article
- DOI
10.1007/s11051-018-4414-0