Ni-Mo2N/SiO2复合纳米催化剂的制备及其对四氢萘加氢的催化活性

采用程序升温氮化法制备了Mo2N/SiO2,在此基础上负载Ni盐,制备了Ni-Mo2N/SiO2复合纳米催化剂,并考察了催化剂对四氢萘加氢的催化活性.结果表明,与Ni2Mo3N/SiO2及Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂具有较高的催化活性.采用＂分离床＂方法研究了Ni和Mo2N对四氢萘加氢活性的影响.通过X射线粉末衍射、透射电镜、氢吸附、元素分析和比表面积测定等技术对Ni-Mo2N/SiO2催化剂进行了表征.结果表明,与Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂中Ni的分散度并未提高;催化活性的提高归因于Ni与Mo2N在四氢萘加氢中的协同作用.氮化...

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Published inChinese journal of catalysis Vol. 29; no. 3; pp. 292 - 296
Main Author 王智强 张明慧 李伟 陶克毅
Format Journal Article
LanguageChinese
Published 南开大学化学学院材料化学系新催化材料科学研究所,天津,300071 2008
Subjects
二氧化硅
加氢
四氢萘
复合纳米催化剂
氮化钼
镍
加氢
复合纳米催化剂
四氢萘
氮化钼
镍
二氧化硅
Online AccessGet full text
ISSN0253-9837
1872-2067
DOI10.3321/j.issn:0253-9837.2008.03.019

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Abstract 采用程序升温氮化法制备了Mo2N/SiO2,在此基础上负载Ni盐,制备了Ni-Mo2N/SiO2复合纳米催化剂,并考察了催化剂对四氢萘加氢的催化活性.结果表明,与Ni2Mo3N/SiO2及Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂具有较高的催化活性.采用＂分离床＂方法研究了Ni和Mo2N对四氢萘加氢活性的影响.通过X射线粉末衍射、透射电镜、氢吸附、元素分析和比表面积测定等技术对Ni-Mo2N/SiO2催化剂进行了表征.结果表明,与Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂中Ni的分散度并未提高;催化活性的提高归因于Ni与Mo2N在四氢萘加氢中的协同作用.氮化物的引入增加了芳烃吸附活性位的数目.提出了四氢萘在Ni-Mo2N/SiO2催化剂上的可能加氢机理.
AbstractList 采用程序升温氮化法制备了Mo2N/SiO2,在此基础上负载Ni盐,制备了Ni-Mo2N/SiO2复合纳米催化剂,并考察了催化剂对四氢萘加氢的催化活性.结果表明,与Ni2Mo3N/SiO2及Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂具有较高的催化活性.采用＂分离床＂方法研究了Ni和Mo2N对四氢萘加氢活性的影响.通过X射线粉末衍射、透射电镜、氢吸附、元素分析和比表面积测定等技术对Ni-Mo2N/SiO2催化剂进行了表征.结果表明,与Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂中Ni的分散度并未提高;催化活性的提高归因于Ni与Mo2N在四氢萘加氢中的协同作用.氮化物的引入增加了芳烃吸附活性位的数目.提出了四氢萘在Ni-Mo2N/SiO2催化剂上的可能加氢机理.
O643/TQ53; 采用程序升温氮化法制备了Mo2N/SiO2,在此基础上负载Ni盐,制备了Ni-Mo2N/SiO2复合纳米催化剂,并考察了催化剂对四氢萘加氢的催化活性.结果表明,与Ni2Mo3N/SiO2及Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂具有较高的催化活性.采用"分离床"方法研究了Ni和Mo2N对四氢萘加氢活性的影响.通过X射线粉末衍射、透射电镜、氢吸附、元素分析和比表面积测定等技术对Ni-Mo2N/SiO2催化剂进行了表征.结果表明,与Ni/SiO2催化剂相比,Ni-Mo2N/SiO2复合催化剂中Ni的分散度并未提高;催化活性的提高归因于Ni与Mo2N在四氢萘加氢中的协同作用.氮化物的引入增加了芳烃吸附活性位的数目.提出了四氢萘在Ni-Mo2N/SiO2催化剂上的可能加氢机理.
Author 王智强 张明慧 李伟 陶克毅
AuthorAffiliation 南开大学化学学院材料化学系新催化材料科学研究所,天津300071
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LI Wei
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ZHANG Minghui
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Keywords 加氢
复合纳米催化剂
四氢萘
氮化钼
镍
二氧化硅
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O643
molybdenum nitride
silica
tetralin
TQ53
hydrogenation
21-1195/O6
nickel; molybdenum nitride; silica; nanocomposite catalyst; tetralin; hydrogenation
nanocomposite catalyst
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PublicationTitleAlternate Chinese Journal of Catalysis
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PublicationYear 2008
Publisher 南开大学化学学院材料化学系新催化材料科学研究所,天津,300071
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SubjectTerms 二氧化硅
加氢
四氢萘
复合纳米催化剂
氮化钼
镍
Title Ni-Mo2N/SiO2复合纳米催化剂的制备及其对四氢萘加氢的催化活性
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