Coordination-Enhanced Synthesis for Hollow Mesoporous Silica Nanoreactors
文献类型：期刊论文
| 作者 | Li, Kaijie; Yang, Caoping; Yu, Hongbo; Xiao, Tao; Guan, Wenjun; Ding, Peng; Yin, Hongfeng; Stuart, Martien Abraham Cohen; Wang, Junyou; Zhou, Shenghu |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2020 |
| 卷号 | 32期号:5页码:2086-2096 |
| 关键词 | PALLADIUM NANOPARTICLES PD NANOPARTICLES MANGANESE OXIDE SHELL CORE HYDRODECHLORINATION SPHERES SIZE HYDROGENATION NANOCRYSTALS |
| DOI | 10.1021/acs.chemmater.9b05202 |
| 英文摘要 | Recent progress has put the spotlight on functional nanoparticles encapsulated inside hollow silica nanospheres as so-called catalytic nanoreactors for various reactions. However, the synthetic methods used so far vary from one nanoparticle system to another, not providing access to the synthesis of a large variety of such materials. Here, we report an alternative, namely, a coordination-enhanced synthesis leading to a single system, which can directly produce a vast number of different hollow mesoporous silica nanoreactors with metal or metal-oxide nanoparticles inside their cavities (M@HMSNs or MxOy@HMSNs, where M stands for the chosen metal). We have successfully used the method with more than 21 different metals (Ru, Pd, Pt, Au, Sc, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Mo, In, Sn, Ba, La, Ce, and Eu). Specifically, a triple ligand is used to coordinate the various metal ions to form a negatively charged complex three-dimensional (3-D) network, which further combines by electrostatic attraction with a positively charged/neutral diblock copolymer, to obtain metalion-bound micelles. After silica deposition, calcination, and (if required) reduction, the corresponding M@HMSNs, MxPy@HMSNs or even their bianalogues are obtained by simply varying the metal ions in the recipe. As an illustration, we show that Pd@HMSNs display greatly enhanced catalytic hydrodechlorination activity and excellent stability due to their unique structures. Hence, the design concept is very flexible and can be extended to even include multicomponent catalytic nanoparticles, which likely extends the range of applications almost beyond imagination. |
| 学科主题 | Chemistry ; Materials Science |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/19883]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Wang, JY 2.Zhou, SH (corresponding author), East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Sch Chem Engn, Shanghai 200237, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, Kaijie,Yang, Caoping,Yu, Hongbo,et al. Coordination-Enhanced Synthesis for Hollow Mesoporous Silica Nanoreactors[J]. CHEMISTRY OF MATERIALS,2020,32(5):2086-2096. |
| APA | Li, Kaijie.,Yang, Caoping.,Yu, Hongbo.,Xiao, Tao.,Guan, Wenjun.,...&Zhou, Shenghu.(2020).Coordination-Enhanced Synthesis for Hollow Mesoporous Silica Nanoreactors.CHEMISTRY OF MATERIALS,32(5),2086-2096. |
| MLA | Li, Kaijie,et al."Coordination-Enhanced Synthesis for Hollow Mesoporous Silica Nanoreactors".CHEMISTRY OF MATERIALS 32.5(2020):2086-2096. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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