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学科主题: 物理化学
题名: Organic linker geometry controlled synthesis of coordination polymer spheres and their thermal transformation to yolk-shell metal oxides
作者: Wang, Min1;  Wang, Feng1;  Ma, Jiping1;  Xu, Jie1
通讯作者: 王峰 ;  徐杰
刊名: JOURNAL OF MATERIALS CHEMISTRY A
发表日期: 2014
DOI: 10.1039/c4ta02535k
卷: 2, 期:37, 页:15480-15487
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Energy & Fuels ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Materials Science
英文摘要: Precise control over size, morphology and composition of coordination polymers (CPs) is challenging but important for using these hybrid materials for many more applications. Herein, we report a protocol of preparing unitary and multinary metal-carboxylic acid coordination polymers without additives. We found that the CPs morphology was controlled by the geometric angle (angle) of carboxylic groups in the organic linkers. At the angle 120 degrees, the mono-dispersed and uniform spherical CPs were obtained with the central distribution size ranging from nanoscale to microscale, adjusted by the precursor concentration and reaction time. We also obtained a series of spherical metal-CPs, including transition and rare earth metals (Mg, Ni, Zn, In, Y, Sm, Eu, Gd, Er, Ho, Yb and Lu) and homogeneously distributed multinary metal-CPs. Moreover, the calcination of these CPs generated unitary and multinary metal oxides with yolk-shell structure. In addition, metal-CPs contain coordinatively unsaturated metal sites, which is confirmed by probe molecule adsorption-IR spectroscopy, and could catalyze the cyanosilylation of carbonyl substrates at 25 degrees C. Sixteen examples were tested and produced good to excellent yields over Eu-CPs.
关键词[WOS]: LI-ION BATTERIES ;  CARBON SPHERES ;  GUEST ENCAPSULATION ;  COLLOIDAL SPHERES ;  ROOM-TEMPERATURE ;  FRAMEWORKS ;  NANOPARTICLES ;  CATALYSTS ;  SIZE ;  MONODISPERSE
语种: 英语
WOS记录号: WOS:000341457000031
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143849
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Min,Wang, Feng,Ma, Jiping,et al. Organic linker geometry controlled synthesis of coordination polymer spheres and their thermal transformation to yolk-shell metal oxides[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(37):15480-15487.
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