TY - JOUR
T1 - Efficient selective combustion of n-butylamine on hierarchical Cu-Mn/SAPO-34 catalysts
T2 - The effect of mesoporosity and acidity
AU - Xu, Junwei
AU - Liu, Qiyuan
AU - Chen, Zhaohui
AU - Li, Lu
AU - Jian, Yanfei
AU - Albilali, Reem
AU - He, Chi
AU - Ma, Mudi
N1 - Publisher Copyright:
© 2023 Elsevier B.V.
PY - 2023/9/5
Y1 - 2023/9/5
N2 - The efficient catalytic oxidation of nitrogen-containing volatile organic compounds remains a big challenge due to unmanaged production of harmful byproducts. Herein, a series of Cu-Mn modified hierarchical SAPO-34 zeolite catalysts with different pore structures were synthesized for n-butylamine oxidation. The physicochemical properties and catalytic performance of catalysts were investigated and analyzed in detail. Among them, CuMn/S-1 shows the highest activity (T90 = 279 °C, GHSV = 12,000 h−1), which is attributed to its higher porosity, higher surface acidity and superior reducibility. Meanwhile, it is found that the hierarchical structure and mesopore play an important role in improvement of N2 selectivity. Meanwhile, CuMn/S-1 also exhibits high stability and water resistance. The catalytic mechanism of n-butylamine on CuMn/SAPO-34 was investigated by in situ DRIFTS, showing that propanol, methanol and acetate are the main intermediates.
AB - The efficient catalytic oxidation of nitrogen-containing volatile organic compounds remains a big challenge due to unmanaged production of harmful byproducts. Herein, a series of Cu-Mn modified hierarchical SAPO-34 zeolite catalysts with different pore structures were synthesized for n-butylamine oxidation. The physicochemical properties and catalytic performance of catalysts were investigated and analyzed in detail. Among them, CuMn/S-1 shows the highest activity (T90 = 279 °C, GHSV = 12,000 h−1), which is attributed to its higher porosity, higher surface acidity and superior reducibility. Meanwhile, it is found that the hierarchical structure and mesopore play an important role in improvement of N2 selectivity. Meanwhile, CuMn/S-1 also exhibits high stability and water resistance. The catalytic mechanism of n-butylamine on CuMn/SAPO-34 was investigated by in situ DRIFTS, showing that propanol, methanol and acetate are the main intermediates.
KW - Cu-Mn binary catalysts
KW - Hierarchical structure
KW - N selectivity
KW - NVOC oxidation
KW - SAPO-34
UR - https://www.scopus.com/pages/publications/85166588480
U2 - 10.1016/j.apcata.2023.119354
DO - 10.1016/j.apcata.2023.119354
M3 - 文章
AN - SCOPUS:85166588480
SN - 0926-860X
VL - 665
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
M1 - 119354
ER -