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The local and microstructures of zinc glutarates synthesized from various zinc sources were investigated by X-ray absorption and solid-state carbon-13 nuclear magnetic resonance spectroscopy, and related to their catalytic activities in the copolymerization of carbon dioxide and propylene oxide. It was found that the local structure around the Zn atoms of the zinc glutarate catalysts consists basically...
The effect of multivalent cations, Ca2+, Ba2+, Y3+, Ce3+ and La3+ on the agglomeration of Ru clusters on NaY zeolite under oxygen and at high temperature has been investigated with 129Xe NMR spectroscopy and X-ray absorption fine structure. Multivalent metal cations exchanged into the zeolite suppress neither the migration nor agglomeration of small Ru clusters inside the supercage of NaY zeolite...
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