TY - JOUR
T1 - From nano-to macro-engineering of LDHs-derived nanocomposite catalysts for harsh reactions
AU - Chai, Ruijuan
AU - Zhang, Zhiqiang
AU - Chen, Pengjing
AU - Pan, Xiaxia
AU - Zhao, Guofeng
AU - Liu, Ye
AU - Lu, Yong
N1 - Publisher Copyright:
© 2017 Hydrogen Energy Publications LLC
PY - 2017/11/2
Y1 - 2017/11/2
N2 - A facile strategy is reported for engineering layered double hydroxides (LDHs)-derived nanocomposite catalysts from nano-to macro-scales in one step, via the Al2O3/water interface-assisted method to embed LDHs onto monolithic substrates (such as thin-felt microfibrous structure using 22 μm FeCrAl fibers or 20 μm stainless steel fibers and SiC foam) followed by calcination to transform LDHs to nanocomposites. Such approach achieves unique integration of tunability and homogeneous distribution of catalytic components, enhanced heat/mass-transfer, self-supported feature, and high permeability, thus exhibiting tremendous potential for application in harsh reactions. For example, the thin-felt NiO–MgO–Al2O3/FeCrAl-fiber catalyst derived from NiMgAl-LDHs/Al2O3/FeCrAl-fiber offers high activity and stability for the high throughput and exothermic catalytic oxy-methane reforming: 87–90% methane conversion and 91–93/90–92% H2/CO selectivities at 700 °C within 300 h testing, using a high gas hourly space velocity of 72 L g−1 h−1.
AB - A facile strategy is reported for engineering layered double hydroxides (LDHs)-derived nanocomposite catalysts from nano-to macro-scales in one step, via the Al2O3/water interface-assisted method to embed LDHs onto monolithic substrates (such as thin-felt microfibrous structure using 22 μm FeCrAl fibers or 20 μm stainless steel fibers and SiC foam) followed by calcination to transform LDHs to nanocomposites. Such approach achieves unique integration of tunability and homogeneous distribution of catalytic components, enhanced heat/mass-transfer, self-supported feature, and high permeability, thus exhibiting tremendous potential for application in harsh reactions. For example, the thin-felt NiO–MgO–Al2O3/FeCrAl-fiber catalyst derived from NiMgAl-LDHs/Al2O3/FeCrAl-fiber offers high activity and stability for the high throughput and exothermic catalytic oxy-methane reforming: 87–90% methane conversion and 91–93/90–92% H2/CO selectivities at 700 °C within 300 h testing, using a high gas hourly space velocity of 72 L g−1 h−1.
KW - Catalytic oxy-methane reforming
KW - Interface-assisted method
KW - Layered double hydroxide
KW - Nanocomposites
KW - Sintering/coke resistance
KW - Structured catalyst
UR - https://www.scopus.com/pages/publications/85030780963
U2 - 10.1016/j.ijhydene.2017.09.105
DO - 10.1016/j.ijhydene.2017.09.105
M3 - 文章
AN - SCOPUS:85030780963
SN - 0360-3199
VL - 42
SP - 27094
EP - 27099
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 44
ER -
