原子层沉积
锆
表征(材料科学)
催化作用
铝
沉积(地质)
扩展X射线吸收精细结构
介孔材料
金属有机骨架
金属
材料科学
密度泛函理论
氧化物
选择性
图层(电子)
无机化学
化学
化学工程
纳米技术
物理化学
吸收光谱法
计算化学
有机化学
物理
冶金
古生物学
吸附
工程类
生物
量子力学
沉积物
作者
Martino Rimoldi,Varinia Bernales,Joshua Borycz,Aleksei Vjunov,Leighanne C. Gallington,Ana E. Platero‐Prats,I. S. Kim,John L. Fulton,Alex B. F. Martinson,Johannes A. Lercher,Karena W. Chapman,Christopher J. Cramer,Laura Gagliardi,Joseph T. Hupp,Omar K. Farha
标识
DOI:10.1021/acs.chemmater.6b03880
摘要
NU-1000, a zirconium-based metal–organic framework (MOF) featuring mesoporous channels, has been postsynthetically metalated via atomic layer deposition in a MOF (AIM) employing dimethylaluminum iso-propoxide ([AlMe2OiPr]2, DMAI), a milder precursor than widely used trimethylaluminum (AlMe3, TMA). The aluminum-modified NU-1000 (Al-NU-1000) has been characterized with a comprehensive suite of techniques that points to the formation of aluminum oxide clusters well dispersed through the framework and stabilized by confinement within small pores intrinsic to the NU-1000 structure. Experimental evidence allows for identification of spectroscopic similarities between Al-NU-1000 and γ-Al2O3. Density functional theory modeling provides structures and simulated spectra, the relevance of which can be assessed via comparison to experimental IR and EXAFS data. The catalytic performance of Al-NU-1000 has been benchmarked against γ-Al2O3, with promising results in terms of selectivity.
科研通智能强力驱动
Strongly Powered by AbleSci AI