Au encapsulated into Al-MCM-41 mesoporous material: in situ synthesis and electronic structure

Fu Liangjie; Huo Chengli; He Xi; Yang Huaming

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Au encapsulated into Al-MCM-41 mesoporous material: in situ synthesis and electronic structure

机译：Au封装在Al-MCM-41中孔材料中：原位合成和电子结构

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Au supporting mesoporous material Al-MCM-41 composites were successfully prepared by encapsulation of the in situ synthesized gold nanoparticles into Al-MCM-41; herein palygorskite clay was used as the Si and Al sources and cetyltrimethylammonium bromide (CTAB) as the template and coupling agent. The obtained Al-MCM-41 possessed a well-defined two-dimensional hexagonal structure with a relative large specific surface area and pore size distribution of 3.9 nm, which was ideal to house very small Au nanoparticles (similar to 3 nm). Using this in situ encapsulation route, the highly ordered Al-MCM-41 was simultaneously generated with the gold nanoparticles incorporated into the pores and the Au3+ species well dispersed in the frameworks. The electronic structure and optical properties of Au/Al-MCM-41 were investigated in detail. The partial reduction of Au3+ species by incorporation of Al3+ from clay sources was confirmed by XPS results and DFT calculations, and the higher catalytic activities of Au/Al-MCM-41 over Au-MCM-41 were evaluated.

机译：通过将原位合成的金纳米颗粒包封成Al-MCM-41，成功地制备了Au支撑介孔材料Al-MCM-41复合材料;在此，甲晶岩粘土用作Si和Al源和甲烷基三甲基溴化铵（CTAB）作为模板和偶联剂。所获得的Al-MCM-41具有明确定义的二维六边形结构，具有相对大的比表面积和孔径分布为3.9nm，其理想的是房屋非常小的Au纳米颗粒（类似于3nm）。使用该原位封装路线，用掺入孔中的金纳米颗粒同时产生高度有序的Al-MCM-41，并且在框架中分散在框架中的Au3 +物种。详细研究了Au / Al-MCM-41的电子结构和光学性质。通过掺入来自粘土来源的Al 3 +的Au3 +物种的部分减少通过XPS结果和DFT计算来证实，评估Au-MCM-41上的Au / Al-MCM-41的较高催化活性。

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《RSC Advances》 |2015年第26期|共10页
作者
Fu Liangjie; Huo Chengli; He Xi; Yang Huaming;
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Cent S Univ Ctr Mineral Mat Sch Minerals Proc &

Bioengn Changsha 410083 Hunan Peoples R China;

Cent S Univ Ctr Mineral Mat Sch Minerals Proc &

Bioengn Changsha 410083 Hunan Peoples R China;

Cent S Univ Ctr Mineral Mat Sch Minerals Proc &

Bioengn Changsha 410083 Hunan Peoples R China;

Cent S Univ Ctr Mineral Mat Sch Minerals Proc &

Bioengn Changsha 410083 Hunan Peoples R China;

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正文语种 eng
中图分类化学;
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1. Au encapsulated into Al-MCM-41 mesoporous material: in situ synthesis and electronic structure (vol 5, pg 20414, 2015) [J] . Fu Liangjie, Huo Chengli, He Xi, RSC Advances . 2015,第30期

机译：Au封装在Al-MCM-41中孔材料中：原位合成和电子结构（Vol 5，PG 20414,2015）
2. Au encapsulated into Al-MCM-41 mesoporous material: in situ synthesis and electronic structure [J] . Fu Liangjie, Huo Chengli, He Xi, RSC Advances . 2015,第26期

机译：Au封装在Al-MCM-41中孔材料中：原位合成和电子结构
3. Correction Au encapsulated into Al-MCM-41 mesoporous material in situ synthesis and electronic structure [J] . Liangjie Fu, Chengli Huo, Xi He, RSC Advances . 2015,第30期

机译：校正Au封装到Al-MCM-41中孔材料的原位合成和电子结构
4. Studies on the synthesis of Al-MCM-41 mesoporous materials [C] . Griselda A. Eimer, Liliana B. Pierella, Oscar A. Anunziata IZC;International zeolite conference . 2001

机译：Al-MCM-41介孔材料的合成研究
5. Biocatalytic approach for polymer synthesis and polymer encapsulation in mesoporous materials. [D] . Ford, Christy. 2004

机译：用于介孔材料中聚合物合成和聚合物封装的生物催化方法。
6. CuO nanoparticles encapsulated inside Al-MCM-41 mesoporous materials via direct synthetic route [O] . Chengli Huo, Jing Ouyang, Huaming Yang -1

机译：通过直接合成途径将CuO纳米颗粒包裹在Al-MCM-41介孔材料中
7. One-pot synthesis of amino functionalized mesoporous silica materials: Using simulations to understand transitions between different structures [O] . Patti, Alessandro, MacKie, Allan D., Zelenak, Vladimir, 2009

机译：氨基官能化介孔二氧化硅材料的一锅法合成：使用模拟来理解不同结构之间的过渡

Au encapsulated into Al-MCM-41 mesoporous material: in situ synthesis and electronic structure

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