α-Al2O3 supports with three different structures,including a straight-channel circular hole honeycomb,a corrugated channel square hole honeycomb,and a pyramid oblique frame topology,are prepared through using stereo lithography appearance(SLA)3D printing technology.Various physical parameters indicate that the α-Al2O3 support with a pyramid oblique frame topology structure achieves the maximum surface area(8 342 mm2)with the minimum mass(1.90 g),realizing the lightweight of the catalyst.Nickel nitrate is loaded on the surface of these three supports via the impregnation method,and calcined to obtain NiAl2O4(Ni-Al spinel)structural catalyst.It is found that in the dry reforming of methane(DRM),the topology NiAl2O4 catalyst exhibits the highest catalytic activity,over which the conversion rates of CH4 and CO2 achieve 97.50％and 99.07％,respectively at 950℃.
维普
万方数据