Template-free synthesis of hierarchical meso-macroporous γ-Al2O3 support: Superior hydrodemetallization performance

摘要: Abstract The design of hierarchically porous catalytic supports is considered as one the most efficient strategies to achieve mass transport and thus high performance in heterogeneous catalysis. As important supports, facile synthesis γ-Al 2 O 3 with hierarchical porosities great industrial importance. In this paper, nest-like hollow γ-AlOOH microspheres constructed from numerous organized nanowires were synthesized via a template-free simple hydrothermal approach, which average macropores 900 nm, mesopores 20 nm pore volume 0.93 cm /g obtained readily. Due their structural merits, such could serve excellent support. demonstration, MoNi/γ-Al supported catalyst was prepared, applied for hydrodemetallization (HDM) Compared prepared commercial , our exhibits superior longer life due enhanced diffusion reactants.