采用FeSO4-H2O2体系对碳纳米管氧化修饰的同时,氢氧化铁被吸附在碳纳米管管壁上,然后分别通过氢气、氮气、空气在723K下处理2h,制备了碳纳米管负载的γ-Fe2O3催化剂、γ-Fe2O3和α-Fe2O3复合催化剂和非晶态Fe2O3催化剂。采用XRD、TEM和TG-DSC表征了催化剂结构,采用连续流动乙苯气相脱氢生成苯乙烯反应对催化剂性能进行评价,结果表明:热处理条件对催化剂乙苯脱氢的催化性能影响明显,碳纳米管负载的晶态Fe2O3纳米催化剂对乙苯脱氢具有高的活性与选择性。 Adopting FeSO4-H2O2 system to oxidize the carbon nanotubes, the iron hydroxide was adsorbed on the wall of the carbon nanotube, and then treated with hydrogen, nitrogen and air at 723K for 2h respectively to prepare the carbon nanotubes loaded γ- Fe2O3 catalyst, γ-Fe2O3 and α-Fe2O3 composite catalysts and amorphous Fe2O3 catalyst. The structure of the catalyst was characterized by XRD, TEM and TG-DSC. The performance of the catalyst was evaluated by the continuous dehydrogenation of ethylbenzene dehydrogenation to styrene. The results showed that the effect of heat treatment on the catalytic performance of the catalyst for ethylbenzene dehydrogenation was obvious. Tube-supported crystalline Fe2O3 nanocatalysts have high activity and selectivity for ethylbenzene dehydrogenation.