梁长海

个人信息Personal Information

教授

博士生导师

硕士生导师

任职 : 大连理工大学成都研究院院长

性别:男

毕业院校:中科院大连化学物理研究所

学位:博士

所在单位:化工学院

学科:化学工艺. 物理化学. 功能材料化学与化工

办公地点:大连理工大学西部校区化工综合楼A401室

联系方式:辽宁省大连市高新区凌工路2号,邮编116024

电子邮箱:changhai@dlut.edu.cn

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Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area.

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论文类型:期刊论文

发表时间:2018-01-01

发表刊物:Journal of visualized experiments : JoVE

收录刊物:PubMed、SCIE

期号:132

ISSN号:1940-087X

关键字:Chemistry; Issue 132; chemical precipitation; catalysts; nanostructures; nanosheets; hydrodeoxygenation; lignin

摘要:We demonstrate a method for the synthesis of NixNb1-xO catalysts with sponge-like and fold-like nanostructures. By varying the Nb:Ni ratio, a series of NixNb1-xO nanoparticles with different atomic compositions (x = 0.03, 0.08, 0.15, and 0.20) have been prepared by chemical precipitation. These NixNb1-xO catalysts are characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and scanning electron microscopy. The study revealed the sponge-like and fold-like appearance of Ni0.97Nb0.03O and Ni0.92Nb0.08O on the NiO surface, and the larger surface area of these NixNb1-xO catalysts, compared with the bulk NiO. Maximum surface area of 173 m2/g can be obtained for Ni0.92Nb0.08O catalysts. In addition, the catalytic hydroconversion of lignin-derived compounds using the synthesized Ni0.92Nb0.08O catalysts have been investigated.