Thermal stability and repartition of potassium promoter between the support and active phase in the K-Co_2.6Zn_0.4O₄|α-Al₂O₃ catalyst for N₂O decomposition: Crucial role of activation temperature on catalytic performance

详细信息    查看全文

• 作者：Gabriela Grzybek ; ^{g.grzybek@uj.edu.pl} ; Sylwia Wó ; jcik ; Piotr Legutko ; Joanna Gryboś ; Paulina Indyka ; Bartosz Leszczyński ; Andrzej Kotarba ; ^{kotarba@chemia.uj.edu.pl} ; Zbigniew Sojka
• 关键词：Supported cobalt spinel ; Co3O4 ; deN2O ; Alkali doping ; Dispersion ; Potassium stability
• 刊名：Applied Catalysis B: Environmental
• 出版年：2017
• 出版时间：15 May 2017
• 年：2017
• 卷：205
• 期：Complete
• 页码：597-604
• 全文大小：3625 K
• 卷排序：205

文摘

Crucial role of activation temperature on K/Zn0.4Co2.6O4|Al2O3 deN2O performance. K migration from the support to the spinel nanocrystals upon temperature increase. KxCoO2 overlayer formation deteriorates catalyst activity.