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3篇 您的检索式:作者名="GENG Aifang"
    题名 作者 年代 出处 被引量
1Polyoxometalate-based high-nuclear cobalt-vanadium-oxo cluster as efficient catalyst for visible light-driven CO2 reduction显示文摘A high-nuclear Co-V-O cluster was firstly isolated by lacunary polyoxoanion, resulting in the high-nuclear mixed metal-oxo cluster-containing polyoxometalate (POM), K4Na28[{Co4(O-H)3(VO4)}4(SiW9O34)4]· 66H2O (1). In 1, the{Co4(O-H)3(VO4)}4{Co16-V4}core, composed of a{Co4O4}cubane, four{Co4(OH)3}qusi-cubanes and four VO4 units, was stabilized by four lacunary A-α-{SiW9O34} units. Photocatalytic study reveals that 1 exhibits excellent photocatalytic activity for CO2-to-CO conversion with high selectivity under visible light irradiation. The turnover number (TON) and turnover frequency (TOF) reaches as high as 10492 and 0.29 s^-1, respectively. Compound 1 represents the first high nuclear TM cluster-containing POM (TM=transition-metal) with efficient visible light catalytic activity for CO2 reduction, and its photocatalytic activity is much higher than those of most reported molecular catalysts. Photoluminescence spectroscopy study reveals that photoexcitation of Ru-photosensitizer is followed by an efficient electron transfer to POMs to reduce CO2.Lizhen Qiao Man Song Aifang Geng Shuang Yao 2019Chinese Chemical Letters2019,30,6:3
2Preparation, characterization and photocatalytic applications of amine-functionalized mesoporous silica impregnated with transition-metal-monosubstituted polyoxometalates显示文摘LI Li LIU Chunming GENG Aifang 2006Materials Research Bulletin2006,41,2:1
3Extended structural materials constructed from sulfate-centered Preyssler-type polyoxometalate with excellent electrocatalytic property显示文摘Sulfate-centered Preyssler-type polyoxometalate was used as the precursor to react with transition metal cations and organic ligand for constructing inorganic-organic hybrid materials{H[Ni_2(H_2O)_4(Htrz)_3]_2(KS_5W_(30)O_(110))}·18 H_2O(trz=1,2,4-triazole)(1), which was characterized by single crystal X-ray diffraction analysis, energy-dispersive X-ray(EDX), power X-ray diffraction(PXRD), IR spectra and thermogravimetric(TG) analyses. In 1, the cylindrical vacancy of the inorganic crown-type anion {S_5W_(30)O_(110)} captures a K^+ ion resulting in the anion {KS_5 W_(30)O_(110)}^(9-),which was further connected by dimeric [Ni_2(H_2 O)_4(Htrz)_3]_2 metal-organic units into an one-dimensional(1D) chain-like structure.These 1D chains are further packed to form a three-dimensional(3D) supramolecular structure via Hbonding interactions. Here, the sulfate-centered Preyssler-typepolyoxometalate was firstly used to coordinate with transition metal cations and introduced into the inorganic-organic hybrid materials.Electrocatalytic study indicates that compound 1 exhibits good electrocatalytic activity toward reduction of H_2O_2 and NO_2^-.Na Zhang Luying Hong Aifang Geng Jinghui Yan Shuang Yao Zhiming Zhang 2018Chinese Chemical Letters2018,29,9:0
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