2000
DOI: 10.1016/s0926-860x(00)00489-0
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Catalytic behaviour of metal based ZSM-5 catalysts for NOx reduction with NH3 in dry and humid conditions

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Cited by 62 publications
(31 citation statements)
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“…For the Cu-HMOR sample, an additional desorption peak at about 600 K was observed, resulting from the decomposition of a copper ammonia complex that was formed during ammonia adsorption. 36,37 Together with the 1 H MAS NMR result in Figure 3, the total amount of the Brønsted acidic sites on the Cu-HMOR catalyst was estimated to be 0.31 mmol/g: 0.20 mmol/g in the 8-MR channels and 0.11 mmol/g in the 12-MR channels. These results further demonstrate that the copper cations were almost equally exchanged with the protons in both 8-MR and 12-MR channels.…”
Section: Resultsmentioning
confidence: 81%
“…For the Cu-HMOR sample, an additional desorption peak at about 600 K was observed, resulting from the decomposition of a copper ammonia complex that was formed during ammonia adsorption. 36,37 Together with the 1 H MAS NMR result in Figure 3, the total amount of the Brønsted acidic sites on the Cu-HMOR catalyst was estimated to be 0.31 mmol/g: 0.20 mmol/g in the 8-MR channels and 0.11 mmol/g in the 12-MR channels. These results further demonstrate that the copper cations were almost equally exchanged with the protons in both 8-MR and 12-MR channels.…”
Section: Resultsmentioning
confidence: 81%
“…Many studies suggest that the ammonia SCR reaction takes place by the strong adsorption of ammonia on the catalyst, and that the molecularly adsorbed ammonia species interacts with NO from the gas phase or from a weakly adsorbed state through an Eley-Rideal type mechanism [162]. It has been reported that Fe 2 O 3 [163], Fe containing mixed oxides [164] and Fe-exchanged materials [165], and in particular Fe-ZSM-5 [166][167][168][169] show significant SCR activity.…”
Section: Selective Catalytic Reduction (Scr) Of No By H 2 or Nh 3 Or mentioning
confidence: 99%
“…NO x is one of the significant pollutants in the atmosphere; it can be removed over the platinum and metals (Cu, Cr and Fe) based on zeolite (H-ZSM-5) catalysts [60]. Dust, soot and other impurities can be removed by using cyclones, metal filters, moving beds, candle filters, bag filters, and special soot scrubber [25].…”
Section: Inorganic and Other Impurities Removalmentioning
confidence: 99%