Sökning: "Al-distribution"

Hittade 2 avhandlingar innehållade ordet Al-distribution.

  1. 1. On the Character of Active Sites in Copper Exchanged Zeolites during NH3-SCR

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Lin Chen; [2017]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Cu-SSZ-13; SSIE; O2-dissociation; Al-distribution; NH3-SCR; Chabazite; O2-activation;

    Sammanfattning : Nitrogen oxides (NOx) are formed during combustion in diesel engines and one current approach to reduce NOx to N2 is selective catalytic reduction with NH3 as reducing agent (NH3-SCR). To acquire both high activity and selectivity, the active site is often atomically dispersed metal atom, so-called single-site catalysts. LÄS MER

  2. 2. On the reaction mechanism for selective catalytic reduction of NOx by NH3 over Cu-zeolites

    Detta är en avhandling från ; Chalmers tekniska högskola; Gothenburg

    Författare :Lin Chen; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; O2-activation; Al-distribution; DFT; NH3-SCR; Cu-CHA; Cu-SSZ-13;

    Sammanfattning : Nitrogen oxides (NOx) are major pollutants from combustion processes, being corrosive and hazardous to human health. The main technology for exhaust aftertreatment of NOx emitted from diesel engines is selective catalytic reduction with ammonia as reducing agent (NH3-SCR). LÄS MER