三种铜源修饰的Cu-HMS的合成研究

采用了三种铜源对ＨＭＳ骨架进行修饰,成功合成了Ｃｕ － ＨＭＳ,并对其结构进行了系统研究。     

Effect of synthesis conditions on particle size of HMS

HMS mesoporous molecular sieve was synthesized hydrothermally by using dodecylamine (DDA) as template and tetethylorthosilicalite (TEOS) as silicon source. The influence of the hydrothermal synthesis conditions on HMS particle size was studied systematically. The results showed that the smaller particle was obtained under the condition of DDA/SiO2=0.27, H2O/SiO2=66.7, EtOH/SiO2=6.5 mol and synthesis time of 18 h. The presences of additives (TW20, TW60, SP60 and Neopelex) also helped to the reduction of particle size. The HMS mesoporous molecular sieve with particle size around 60～100 nm was obtained by using TW20 or TW60 as an additive. In addition, TEM image showed that HMS mesoporous molecular sieve with pariticle size about 20～100 nm was synthesized in microemulsion.     

HMS中孔骨架上嵌入Co活性中心的研究

采用过渡金属元素Co做嵌入的杂原子 ,在室温下合成了Co -HMS ,以XRD、FT -IR、SEM等对样品进行了表征 ,并对影响合成催化剂的因素及催化剂催化氧化性能作了初步考察 ,为Co -HMS催化剂的合成与深入研究奠定了基础     

高职酒店管理专业校外实训基地建设探析

高职酒店管理专业校外实训基地建设应遵循重点选择、合作共赢、有效沟通的原则,结合校地实际,合理布局和建设松散型、紧密型和战略型的校外实训基地。     

The HMS Malaya Cup Football League, 1921–1941: Towards the Institutionalization of Football in British Malaya

Abstract

This research is part of a larger phenomenon about the diffusion and transmission of football in various British colonies, particularly in Asia. After the British occupied the Straits Settlements of Penang, Malacca, and Singapore and enforced indirect rule in the Federated Malay States of Perak, Selangor, Negri Sembilan, and Pahang and Unfederated Malay States of Perlis, Kedah, Kelantan, and Trengganu and Johore, they established sports clubs and played football. They also introduced the game to the Malay, Chinese, Eurasian, Indian, and Sikh communities. In 1921, the British donated the HMS Malaya Cup for football. The inaugural football league consisted of seven colony or state teams and players from the European and local communities. During the first decade (1921–1930), two outstanding European and six local players were highlighted. By the end of next 11 years (1931–1941), 10 teams took part in the competition. During this period, 10 outstanding players emerged from the local communities. Singapore appeared in all 21?Cup finals winning 12 times and drew twice. Selangor was 14 times finalists winning four times and drew twice. Perak won twice out of three final appearances. Kedah and Penang were losing finalists 1940 and 1941, respectively.     

索氏抽提对HMS合成的影响

以溶胶凝胶法室温下合成了HMS分子筛原粉(DDA-HMS),考察了索氏抽提法脱膜过程中的抽提条件对HMS中孔结构及有序度的影响,X射线衍射(XRD)、傅立叶红外(FTIR)、扫描电镜(TEM)、X射线光电子能谱(XPS)及失重与差热(TG-DTA)分析表明:不同的抽提溶剂和抽提时间对HMS材料的结构具有不同程度的影响,并首次发现以丙酮抽提DDA合成的HMS具有最稳定的中孔结构和较高的中孔有序度.     

干凝胶法合成复合孔分子筛的研究

以含有模板剂的介孔氧化硅原粉（HMS）作为原料,通过浸溃法引入微孔沸石合成导向剂,再利用有机模板剂作为介孔产生的模板,通过干凝胶转换方法将介孔材料孔壁晶化得到微孔一介孔复合孔分子筛．采用X射线衍射（XRD）、红外光谱（IR）法对样品的结晶度进行了表征,采用氮气吸附等温线测定了样品比表面积和孔分布．结果表明：全硅HMS介孔分子筛在180℃经过6h水蒸汽加热转化后,无定形介孔氧化硅转化为微孔沸石,结晶度达到80％,比表面和孔体积分别为595m^2·g^-1和0．65cm^3·g^-1．而含铝HMS介孔分子筛,因铝的引入阻碍了沸石的转化．当HMS分子筛Si／Al比达到25时,在180℃经过6h水蒸汽加热,所得样品（MZ25．6）孔壁仍为无定型结构．