Coordination-Enhanced Synthesis for Hollow Mesoporous Silica Nanoreactors

doi:10.1021/acs.chemmater.9b05202

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Coordination-Enhanced Synthesis for Hollow Mesoporous Silica Nanoreactors
	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
	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
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19883]
专题	2020专题
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.