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Two 2D Layered P4Mo6 Clusters with Potential Bifunctional Properties: Proton Conduction and CO2 Photoreduction
Release time:2021-04-29    Views:515





Author Information:


Du Zeyu (first author)


Yan Xu (first corresponding author)


Mei Hua (second corresponding author)




About the article: In this paper, two kinds of hourglass phosphate molybdenum heteropoly acid complexes were successfully designed and synthesized by hydrothermal method. Its molecular formulas are [Cd(H2O)2DABT]4[Cd(H7P4Mo6O31)2]·19H2O(1) and (C2H5OH)(C3H5N2)6[CO3 (H6P4Mo6O31)2]·H2O (2). The structural analysis shows that the inorganic part of complexes 1 and 2 is an hourglass type {M[P4Mo6]2}(M=Cd/Co) dimer composed of two transition metal (Cd/Co) atoms as the center of the P4Mo6 cluster. The {M[P4Mo6]2} clusters are connected by transition metals to form an interesting two-dimensional layered structure. To our delight, compounds 1 and 2 exhibited excellent proton conductivity at 60°C and 98% relative humidity, with proton conductivity of 1.35×10−3 and 3.78×10−3 S cm-1, respectively. At the same time, compound 2 exhibited excellent CO2 photoreduction performance, and the CO yield reached 5789 μmol g−1 under 8 h of light exposure, indicating that compound 2 has the potential to be a bifunctional polyacid based material.


Article link:


https://pubs.acs.org/doi/10.1021/acs.inorgchem.0c01941


We agree that the innovations of this paper are as follows:


1. Interesting two-dimensional polyacid-based materials;


2. It has the properties of proton conduction and CO2 photocatalytic reduction.


Fig. 1-2 Complex structure


Fig. 3 Proton conductive impedance diagram


Fig. 4 Photocatalytic charge transfer mechanism of the system

















Instruments used in the paper:

Product name: photocatalytic activity evaluation system

Product model: CEL-SPH2N-S9













Product name: photocatalytic xenon lamp light source

Product model: CEL-PF300-T8

                                  




Product name: photocatalytic activity evaluation system

Product model: cel-paem-d8plus








Product name: automatic system gas chromatography

Product model: GC7920-TF2Z





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