软模板法制备meso-SAPO-11微介复合分子筛

来源 :第十七届全国催化学术会议 | 被引量 : 0次 | 上传用户:hainian3166
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
在众多模板剂中,葡萄糖作为一种廉价易得的原料,一直被广泛应用于孔结构材料的制备过程中.前期研究表明[1]利用葡萄糖作为模板制备了具有良好介孔结构的Al2O3 等物质,同时有文献报道[2]葡萄糖作为模板在AlPO-5 分子筛内构造介孔结构中取得成功应用.因此,本文将此方法应用于SAPO-11 分子筛的介孔结构设计与构造,通过调变葡萄糖的用量控制晶化条件,从而获得具有良好介孔分布的meso-SAPO-11 分子筛材料.
其他文献
Structure and related properties of various Au32-nPdn(n=1,2,4,6)clusters have been investigatedusing density functional theory(DFT).Relative energy values indicate that Pd atom prefers tosubstitute in
会议
A key factor in determining the intrinsic carrier mobility of a material is the electron-phonon(e-ph)coupling strength.The deformation potential(DP)theory usually be used to describe the e-phcoupling,
会议
Apparent polarization energy of the localized charge in organic solid consists of electronic polarization energy,permanent electrostatic interactions and inter/intra molecular relaxation energies.The
会议
At present,scientists have studied the nitrobenzene adsorption on the surface of the cluster aboutthe copper,silver and gold in the experiment,[1,2,3] however,the specific adsorption mechanism isnot v
会议
In a previous study(J.Phys.Chem.C 2011,115,12403)cluster models for the TiO2 rutile(110)surface and MP2 calculations were used to develop an analytic potential energy function for dimethyl methylphosp
会议
We present a theoretical study on a series of novel metallacarborane sandwich nanowires,which are constructed with alternating transition metal atoms and hexagonal antiprism carborane by means of dens
会议
The structures,relative stabilities,vertical electron detachment energies and magnetic properties of a series of trinuclear clusters are explored via combined broken-symmetry DFT and ab initio study.S
会议
Theoretical studies on Si-doped armchair carbon nanotubes(CNTs)with various diameters have been performed using the SCF-MO method based on DFT calculations.The geometrical optimization,energy and elec
会议
多孔碳材料,因其具有较高的比表面积、大的孔容、良好的导电和导热性能以及水热稳定性能,在催化、吸附、分离等领域具有广泛的应用[1].有序介孔碳的合成方法包括:纳米铸造法(nano-casting)和软模板法(soft-template).软模板法直接采用碳源和模板剂进行自组装、再经过高温碳化除去模板剂后得到有序介孔碳材料.
采用蒸发诱导自组装法合成了有序介孔氧化铝(OMA)(图1,2),以OMA为载体制备了钴费-托合成催化剂,考察了OMA的焙烧温度、孔径对催化剂的催化性能的影响,结果表明:1)OMA的孔容和比表面积随着焙烧温度的升高而升高,并且在焙烧温度为700℃时获得了最大的比表面积和孔容,但继续提高焙烧温度则会降低OMA的孔径、孔容和比表面积;2)800℃焙烧的OMA负载的钴催化剂具有最佳的费-托合成催化性能,这