TY - JOUR
T1 - Simultaneous gas-phase loading of MOF-5 with two metal precursors
T2 - towards bimetallics@MOF
AU - Schröder, Felicitas
AU - Henke, Sebastian
AU - Zhang, Xiaoning
AU - Fischer, Roland A.
PY - 2009/7
Y1 - 2009/7
N2 - Simultaneous gas-phase loading of [Zn4O(bdc)3] (bdc = 1,4-benzenedicarboxylate; MOF-5) with combinations of two different MOCVD precursors such as [Fe(η6-toluene)(η4C 4H6)]/[CpPtMe3], [CpPd(η3-C 3H5)]/[CpPtMe3] and [Ru(cod)(cot)]/[Pt(cod)Me2] was followed by solid state 13C MAS NMR spectroscopy, elemental analysis and X-ray powder diffraction (PXRD). Different: amounts of precursors were applied for the loading experiments. It was found that defined molar ratios of the adsorbed precursors inside MOF-5 can be achieved when the loading is below the saturation level of MOF-5 for adsorption of the individual precursors. The cohydrogenolysis of the loaded material [Ru(cod)(cot)]/[Pt(cod)Me 2]@MOF-5 was selected as a representative example to study the possibility of obtaining bimetallic PtRu nanoparticles hosted inside the MOF support. The quantitative cohydrogenolysis of the adsorbed metal precursors led to formation of alloyed metal nanoparticles as revealed by PXRD, transmission electron microscopy (TEM) and selected area electron diffraction. However, the bdc linkers of the MOF-5 host material were partially hydrogenated which caused a severe distortion of the MOF-5 matrix, loss of long range crystalline order and reduction of the BET surface area down to 380 m2q-1.
AB - Simultaneous gas-phase loading of [Zn4O(bdc)3] (bdc = 1,4-benzenedicarboxylate; MOF-5) with combinations of two different MOCVD precursors such as [Fe(η6-toluene)(η4C 4H6)]/[CpPtMe3], [CpPd(η3-C 3H5)]/[CpPtMe3] and [Ru(cod)(cot)]/[Pt(cod)Me2] was followed by solid state 13C MAS NMR spectroscopy, elemental analysis and X-ray powder diffraction (PXRD). Different: amounts of precursors were applied for the loading experiments. It was found that defined molar ratios of the adsorbed precursors inside MOF-5 can be achieved when the loading is below the saturation level of MOF-5 for adsorption of the individual precursors. The cohydrogenolysis of the loaded material [Ru(cod)(cot)]/[Pt(cod)Me 2]@MOF-5 was selected as a representative example to study the possibility of obtaining bimetallic PtRu nanoparticles hosted inside the MOF support. The quantitative cohydrogenolysis of the adsorbed metal precursors led to formation of alloyed metal nanoparticles as revealed by PXRD, transmission electron microscopy (TEM) and selected area electron diffraction. However, the bdc linkers of the MOF-5 host material were partially hydrogenated which caused a severe distortion of the MOF-5 matrix, loss of long range crystalline order and reduction of the BET surface area down to 380 m2q-1.
KW - Gas-phase reactions
KW - Metal-organic frameworks
KW - Nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=67650812585&partnerID=8YFLogxK
U2 - 10.1002/ejic.200900138
DO - 10.1002/ejic.200900138
M3 - Article
AN - SCOPUS:67650812585
SN - 1434-1948
SP - 3131
EP - 3140
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
IS - 21
ER -