Preparation and evaluation of a well-ordered mesoporous nickel-molybdenum/silica opal hydrodesulfurization model catalyst

Preparation and evaluation of a well-ordered mesoporous nickel-molybdenum/silica opal hydrodesulfurization model catalyst
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有序介孔镍钼/硅蛋白石加氢脱硫模型催化剂的制备与评价

DOI:
10.1007/s11243-011-9552-5
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发表时间:
2012-02
影响因子:
1.7
通讯作者:
Zhang, Jun-hui
Zhang, Jun-hui
中科院分区:
化学4区
文献类型:
--
作者:
Zhou, Zheng;Chen, Sheng-li;Hua, Derun;Zhang, Jun-hui

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通过在硅蛋白石表面沉积Ni和Mo,制备了孔结构有序的硅载体加氢脱硫(HDS)模型催化剂。利用单分散二氧化硅微球有序填充的孔洞,模型催化剂的孔洞是完全贯通且均匀分布的。模型催化剂的有序孔结构和规则光滑的表面使金属氧化物的表面状态易于观察。结果表明,金属氧化物较好地分散在二氧化硅上,模型催化剂在二苯并噻吩的HDS中表现出较高的活性。
A silica-supported hydrodesulfurization (HDS) model catalyst with well-ordered pore structure was prepared by depositing Ni and Mo on the surface of silica opal. Using the voids of ordered packing of monodisperse silica microspheres, the pores of the model catalyst are wholly open-through and uniformly distributed. The ordered pore structure and regular smooth surface of the model catalyst make the surface states of metal oxides readily observable. As a result, the metal oxides were well dispersed on the silica, and the model catalyst exhibited a high activity in HDS of dibenzothiophene.
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