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The local environment of zirconium in Zr-silicalite with MEL structure has been studied using the EXAFS technique. The structural parameters indicate the presence of tetrahedrally coordinated, isolated zirconium sites with Si–O–Zr linkages. The experimental results support the location of Zr 4+ ions at edge- or corner-sharing positions (N(Zr–O)=3.9 and N(Zr–Si)=1.2), rather than in regular...
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