TY - JOUR
T1 - Highly Dispersed Ni xGa yCatalyst and La2O3Promoter Supported by LDO Nanosheets for Dry Reforming of Methane
T2 - Synergetic Catalysis by Ni, Ga, and La2O3
AU - Zeng, Fang
AU - Wei, Bo
AU - Lan, Dengpeng
AU - Ge, Jianping
N1 - Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/8/17
Y1 - 2021/8/17
N2 - A highly active and stable Ni-based catalyst is the focal point for research on dry reforming of methane (DRM). Here, NixGay/La2O3-LDO catalysts composed of highly dispersed NixGay and La2O3 nanoparticles supported by the MgO/Al2O3 layered double oxide (LDO) nanosheets were synthesized by chemical methods. According to transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), CO2-TPD, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and thermal gravitational analysis (TGA), a synergistic reaction mechanism was proposed to explain the superior performance of the Ni0.8Ga0.2/La2O3-LDO catalyst. The NixGay alloy catalyst provides an effective way to balance the speed of CH4 cracking and CO2 disassociation, and the La2O3 promoter enriched the CO2 and ensured the generation of active O in time. They worked together to inhibit carbon accumulation and significantly improve the catalyst's activity and stability.
AB - A highly active and stable Ni-based catalyst is the focal point for research on dry reforming of methane (DRM). Here, NixGay/La2O3-LDO catalysts composed of highly dispersed NixGay and La2O3 nanoparticles supported by the MgO/Al2O3 layered double oxide (LDO) nanosheets were synthesized by chemical methods. According to transmission electron microscopy (TEM), energy-dispersive spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), CO2-TPD, diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and thermal gravitational analysis (TGA), a synergistic reaction mechanism was proposed to explain the superior performance of the Ni0.8Ga0.2/La2O3-LDO catalyst. The NixGay alloy catalyst provides an effective way to balance the speed of CH4 cracking and CO2 disassociation, and the La2O3 promoter enriched the CO2 and ensured the generation of active O in time. They worked together to inhibit carbon accumulation and significantly improve the catalyst's activity and stability.
UR - https://www.scopus.com/pages/publications/85113357250
U2 - 10.1021/acs.langmuir.1c01162
DO - 10.1021/acs.langmuir.1c01162
M3 - 文章
AN - SCOPUS:85113357250
SN - 0743-7463
VL - 37
SP - 9744
EP - 9754
JO - Langmuir
JF - Langmuir
IS - 32
ER -