Mesoporous Silicoaluminum Pillared Clays with High Thermal Stability and Br?nsted /Lewis Acidity by

来源 :Chinese Chemical Letters | 被引量 : 0次 | 上传用户:juguoxianzhe
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
Mesoporous silicoaluminum pillared clays have been synthesized by one-potgallery-templated synthesis using organomontmorillonite, tetraethyl orthosilicate and aluminaisopropoxide as precursor. According to the characterization by powder X-ray diffraction(PXRD), thermogravimetric analysis (TGA), N2 adsorption isotherms and pyridine adsorptioninfrared (IR) techniques, the synthetic silicoaluminum pillared clays possess regular porosity withhigh thermal stability up to 750 ℃ and Br?nsted /Lewis acidity. Mesoporous silicoaluminum pillared clays have been synthesized by one-pot gallery-templated synthesis using organomontmorillonite, tetraethyl orthosilicate and aluminaisopropoxide as precursor. According to the characterization by powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), N2 adsorption isotherms and pyridine adsorption infrared (IR) techniques, the synthetic silicoaluminum pillared clays possess regular porosity with high thermal stability up to 750 ° C and Br? Nsted / Lewis acidity.
其他文献
The stoichiometric alloy MlB5.0 and the hypo-stoichiometric alloy MlB4.85 were prepared by twin-roller rapid quenching process, and their structure and electroc
儿童外伤性白内障多为单眼发病,人工晶体植入对其重新获得双眼单视功能甚为重要。我科自lop年8月以来,进行此种手术38例,获得良好效果,报告如下:材料和方法:一般情况:38例中男兀例,女
《江泽民文选》在全党同志和全国各族人民的热切期待中出版发行了。《江泽民文选》全面反映了“三个代表”重要思想形成和发展的历史过程,深刻阐述了“三个代表”重要思想的
人民的军队,在一地驻军,就要保一地稳定,促一地发展。建设社会主义新农村,不仅是地方的历史任务,也是驻军义不容辞的责任。安徽省宣城军分区的驻地宣城市地处皖南革命老区,具
随着农业科学技术的飞速发展,农药被农林广泛应用,笔者自1985年4月至今遇到农药致眼伤83例,今将!临床观察与治疗体会报告如下。一般资料:83例,88眼,其中男巧例,女38例,右39眼,左49眼。
患者男,50岁,农民,因左眼红、流泪、异物感反复发作半年来我院。患者因左眼异物感,半年前于当地卫生站诊为左眼角膜炎,使用氯霉素服液后症状缓解,以后反复发作数次,均用氯霉素服液滴
目的通过稳定性实验研究重组肿瘤坏死因子相关凋亡诱导配体(rshTRAIL)突变体的贮藏条件与货架寿命期,为大规模生产过程质量风险控制提供评估依据。方法采用细胞毒磺基罗丹明B
The theoretical evaluating method is given for the drawability of the sheet with normal anisotropy. The generalsolution on the cracking load of deep-drawing is
鼻出血为耳鼻喉科常见急症。鼻腔后部出血往往出血量大,来势凶猛,难以自行停止。近5年来我们共治疗需收住院的严重鼻腔后部出血57例,现将其诊断处理体会报道如下。 Epistax
《中国城市经济》:目前,由福建省提出的建设海峡西岸经济区的重大战略构想越来越受到海内外的广泛关注,泉州将如何参与“海西”建设?郑道溪:海峡西岸经济区建设的全面铺开,为