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The visible light photocatalytic H2 evolution activities of a series of transition-metal substituted Keggin-structure heteropoly blues K6SiW11O39M(H2O)·nH2O (M = Co, Ni, Cu and Zn) were systematically studied with Pt nanoparticles as co-catalyst. The H2 evolution rates were 150, 98, 65 and 48 μmol h−1g−1 for SiW11Cu, SiW11Ni, SiW11Co and SiW11Zn, respectively, meaning that the order of photocatalytic...
Intramolecular electron transfer triggered by proton and the mechanism of structural conversion in a ethynylene-bridged ferrocene-anthraquinone organic electron donor(D)-acceptor(A) π-conjugated system (1-FcAq) in the presence of a Keggin type heteropoly acid as proton source are discussed. Heteropoly acids can stabilize the protonated ethynylene-bridged ferrocene-anthraquinone conjugated complex,...
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