Silver linked polyoxometalate open frameworks (Ag-POMOFs) for the directed fabrication of silver nanomaterials
Silver linked polyoxometalate open frameworks (Ag-POMOFs) for the directed fabrication of silver nanomaterials
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DOI：
10.1021/cg2002496
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发表时间：
2011-04
影响因子：
3.8
通讯作者：
T. McGlone;C. Streb;M. Busquets-Fité;Jun Yan;D. Gabb;D. Long;L. Cronin
中科院分区：
文献类型：
--
作者：
T. McGlone;C. Streb;M. Busquets-Fité;Jun Yan;D. Gabb;D. Long;L. Cronin
提出了一种制备高纯度{（DMAH）7[H2SbW 18 O 60]}（DMAH-2）和{（DMAH）7[H2 BiW 18 O 60]}（DMAH-3）（DMAH =二甲基铵）体系的设计方法，并首次用电喷雾质谱（ESI-MS）对后者进行了表征。这些，连同原型的[W10 O32]簇，被用作前体的独特的框架材料的形成纳入银（I）作为连接物种。通过X-射线晶体学、元素分析、IR和热重分析（TGA）对该体系进行了充分表征，并且{Ag 4-W 10 O 32}体系（1）的热解导致形成嵌入所得氧化钨中的银微粒，这已经由我们先前用其它体系观察到。相反，锑和铋体系{Ag-4-SbW-18 O-60}（Ag-2）和{Ag-4-SbW-18 O-60}（Ag-3）的仔细控制的分解引起高纯、离散的银微粒的形成，如B所证实的。
A design approach for the preparation of the {(DMAH)7[H2SbW18O60]} (DMAH-2) and {(DMAH)7[H2BiW18O60]} (DMAH-3) (DMAH = dimethylammonium) systems in a highly pure crystalline form is presented, and the latter is characterized by electrospray ionization mass spectrometry (ESI-MS) methods for the first time. These, together with the archetypal [W10O32] cluster, are used as precursors for the formation of unique framework materials incorporating Ag(I) as a linking species. The systems are fully characterized by X-ray crystallography, elemental analysis, IR and thermogravimetric analysis (TGA), and the pyrolysis of the {Ag4-W10O32} system (1) leads to the formation of silver microparticles embedded in the resulting tungsten oxide and this has been observed by us previously with other systems. In contrast, the carefully controlled decomposition of the antimony and bismuth systems {Ag418O60} (Ag-2) and {Ag4-SbW18O60} (Ag-3) gives rise to the formation of highly pure, discrete silver microparticles as confirmed b...