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六苄基六氮杂异伍兹烷氢解脱苄Pd(OH)2/C催化剂的制备
  • ISSN号:1006-9941
  • 期刊名称:《含能材料》
  • 时间:0
  • 分类:TJ55[兵器科学与技术—军事化学与烟火技术] O621.254[理学—有机化学;理学—化学]
  • 作者机构:[1]北京工业大学环境与能源工程学院,北京100124, [2]北京理工大学材料学院,北京100081
  • 相关基金:国家自然科学基金资助(21346005)
中文摘要:

Pd(OH)2/C催化剂是制备六硝基六氮杂异伍兹烷(HNIW,CL-20)的关键材料.选择三种市售的活性炭为载体,采用浸渍沉积法制备了几种六苄基六氮杂异伍兹烷(HBIW)氢解脱苄Pd(OH)2/C催化剂.考察了载体活性炭的表面性质、孔径分布、催化剂制备温度、碱的种类及钯负载量对Pd(OH)2/C催化剂的催化活性的影响.催化活性和N2吸附、程序升温脱附(TPD)、粉末X射线衍射(XRD)和透射电镜(TEM)的特性表明,活性炭的表面性质、孔径分布、反应温度和钯负载量显著影响Pd(OH)2/C催化剂的催化活性,而活性炭的比表面积和催化剂制备过程中所用碱的种类不是影响Pd(OH)2/C催化剂性能的关键因素.用30%硝酸预处理ACROS Organics公司产的颗粒状活性炭为载体,碳酸钠为碱源,在反应温度5℃下,制得的9%Pd(OH)2/C催化剂有最佳的催化活性.催化剂中钯用量为底物HBIW的0.3%(质量分数)时,氢解脱苄乙酰化产物收率达93%.

英文摘要:

Pd(OH)2/C catalyst is a key material for the preparation of hexanitrohexaazaisowurtzitane (HNIW,CL-20). Several Pd(OH) 2/C catalysts for the hydrogenolytic debenzylation of hexabenzylhexaazaisowurtzitane (HBIW) were prepared through soaking-deposition method with three types of commercial activated carbons as carriers. Effects of the surface properties and pore size distributions of activated carbons, the preparation temperature of catalyst, the kinds of base and the loading amount of palla- dium on the catalytic activity of Pd( OH )2/C catalyst were investigated. The catalytic activity and the characteristics of N2 adsorp- tion, temperature programmed desorption (TPD) , powder X-ray diffraction (XRD) and transmission electron microscope (TEM) show that the catalytic activity of Pd(OH )2/C catalyst is strongly influenced by the surface property and pore size distribution of activated carbon, reaction temperature and the loading amount of palladium, whereas the specific surface area of activated carbon and the kinds of base used in preparation process of catalyst are not key factors affecting the properties of Pd (OH)2/C catalyst. Using disodium carbonate as base source and 30% nitric acid pretreated granular activated carbon ( produced by ACROS Organics Company) as carrier, the 9% Pd( OH ) 2 IC catalyst prepared under the reaction temperature of 5℃, has the best catalytic activity. When the amount of palladium used in catalyst is 0.3% (wt/wt) of HBIW substrate, the product yield of hydrogenolytic debenzy- lation-acetylation reaction of HBIW reaches 93%

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期刊信息
  • 《含能材料》
  • 北大核心期刊(2011版)
  • 主管单位:四川省科协
  • 主办单位:中国工程物理研究院
  • 主编:田勇
  • 地址:四川省绵阳市919信箱310分箱
  • 邮编:621999
  • 邮箱:HNCL01@caep.cn
  • 电话:0816-2485362
  • 国际标准刊号:ISSN:1006-9941
  • 国内统一刊号:ISSN:51-1489/TK
  • 邮发代号:62-31
  • 获奖情况:
  • 获首届《中国学术期刊(光盘版)检索与评价数据规...,四川省第二届优秀期刊评比中荣获编辑加工奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,中国中国科技核心期刊,中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:5442