采用化学还原法,制备出了Ni Co B/SAPO-5硝基苯液相加氢制备出对氨基苯酚(PAP)双功能催化剂,利用X射线衍射、扫描电子显微镜等手段表征了催化剂的物化性能。结果表明,非晶态Ni Co B合金以纳米颗粒形式分散在SAPO-5分子筛微球表面;SAPO-5...采用化学还原法,制备出了Ni Co B/SAPO-5硝基苯液相加氢制备出对氨基苯酚(PAP)双功能催化剂,利用X射线衍射、扫描电子显微镜等手段表征了催化剂的物化性能。结果表明,非晶态Ni Co B合金以纳米颗粒形式分散在SAPO-5分子筛微球表面;SAPO-5中n(Si O2)/n(Al2O3)为0.1,Ni负载量为2%,n(Co)/n(Co+Ni)为1时,Ni Co B/SAPO-5双功能催化剂的催化性能较好,硝基苯转化率为90.04%,PAP选择性为42.53%。展开更多
A series of ultrafine amorphous NiCoB alloys was prepared by chemical reduction method.XRD,TEM and BET techniques were used to investigate the phase,morphology,particle size and activity of the catalyst for the hydrog...A series of ultrafine amorphous NiCoB alloys was prepared by chemical reduction method.XRD,TEM and BET techniques were used to investigate the phase,morphology,particle size and activity of the catalyst for the hydrogenation of soybean oil.The results indicated that their activities are higher than that of Raney Ni,Moreover,with the increasing of Ni/Co molar ration,the catalytic activity of the catalysts versus Ni/Co ration passe through a maximum at Ni/Co=0.5,at which the grain size and specific surface area were 20nm and 46.9m2·g-1,respectively.As an high effective environmental amicable catalyst,ultrafine amorphous NiCoB alloys can be used to the hydrogenation of soybean oil.展开更多
文摘采用化学还原法,制备出了Ni Co B/SAPO-5硝基苯液相加氢制备出对氨基苯酚(PAP)双功能催化剂,利用X射线衍射、扫描电子显微镜等手段表征了催化剂的物化性能。结果表明,非晶态Ni Co B合金以纳米颗粒形式分散在SAPO-5分子筛微球表面;SAPO-5中n(Si O2)/n(Al2O3)为0.1,Ni负载量为2%,n(Co)/n(Co+Ni)为1时,Ni Co B/SAPO-5双功能催化剂的催化性能较好,硝基苯转化率为90.04%,PAP选择性为42.53%。
文摘A series of ultrafine amorphous NiCoB alloys was prepared by chemical reduction method.XRD,TEM and BET techniques were used to investigate the phase,morphology,particle size and activity of the catalyst for the hydrogenation of soybean oil.The results indicated that their activities are higher than that of Raney Ni,Moreover,with the increasing of Ni/Co molar ration,the catalytic activity of the catalysts versus Ni/Co ration passe through a maximum at Ni/Co=0.5,at which the grain size and specific surface area were 20nm and 46.9m2·g-1,respectively.As an high effective environmental amicable catalyst,ultrafine amorphous NiCoB alloys can be used to the hydrogenation of soybean oil.
