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Vanadium oxide nanotubes for selective catalytic reduction of NO_x with NH_3 被引量:1
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作者 Seyed Mahdi Mousavi 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2016年第7期914-919,共6页
Vanadium oxide (VOx) nanostructures, synthesized by hydrothermal treatment using dodecylamine as template, were evaluated for the selective catalytic reduction of NOx with ammonia (NH3-SCR), The effect of solvent ... Vanadium oxide (VOx) nanostructures, synthesized by hydrothermal treatment using dodecylamine as template, were evaluated for the selective catalytic reduction of NOx with ammonia (NH3-SCR), The effect of solvent type in the reaction mixture (EtOH/(EtOH + H20)) and time of hydrolysis was studied. The obtained materials were characterized by XRD, SEM, TEM and BET, The VOx nanorods (80-120 nm diameter and 1-4 μm length) were synthesized in 25 vol% EtOH/(EtOH + H20) and the open-ended multiwalled VOx nanotube (50-100 nm inner diameter, 110-180 nm outer diameter and 0,5-2 pm length) synthesized in 50 vol% EtOH/(EtOH + H20). VOx nanotuhes performed the superior NH3-SCR activity under a gas hourly space velocity of 12,000 h-1 at low temperature of 250 ~C (NOx conversion of 893g & N2 selectivity of 100%), while most of the developed Vanadia base catalysts are active at high temperature (〉350 ℃). The superior NH3-SCR activity ofVOx nanotubes at low tem- perature is related to nanocrystalline structure, special nanotube morphology as well as high specific surface area. 展开更多
关键词 Hydrothermal Nanotubes nox Pollution SCR
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