Multifunctional Mesoporous Composite Microspheres with Well-Designed Nanostructure: A Highly Integrated Catalyst System Yonghui Deng Yue Cai Zhenkun Sun Jia Liu Chong Liu Jing Wei Wei Li Chang Liu Yao Wang Dongyuan Zhao 10.1021/ja1025744.s001 https://acs.figshare.com/articles/journal_contribution/Multifunctional_Mesoporous_Composite_Microspheres_with_Well_Designed_Nanostructure_A_Highly_Integrated_Catalyst_System/2758417 The precise control of the size, morphology, surface chemistry, and assembly process of each component is important to construction of integrated functional nanocomposites. We report here the fabrication of multifunctional microspheres which possess a core of nonporous silica-protected magnetite particles, transition layer of active gold nanoparticles, and an outer shell of ordered mesoporous silica with perpendicularly aligned pore channels. The well-designed microspheres have high magnetization (18.6 emu/g), large surface area (236 m<sup>2</sup>/g), highly open mesopores (∼2.2 nm), and stably confined but accessible Au nanoparticles and, as a result, show high performance in catalytic reduction of 4-nitrophenol (with conversion of 95% in 12 min), styrene epoxidation with high conversion (72%) and selectivity (80%), especial convenient magnetic separability, long life and good reusability. The unique nanostructure makes the microsphere to be a novel stable and approachable catalyst system for various catalytic industry processes. 2010-06-23 00:00:00 assembly process surface chemistry pore channels Integrated Catalyst SystemThe multifunctional microspheres mesoporous silica transition layer industry processes catalyst system gold nanoparticles conversion Multifunctional Mesoporous Composite Microspheres