Two Novel Catalysts Constituted by Transition Metal-Oxide-Based Cluster Cation Frameworks with Big Ellipse Cavities Acco
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ORIGINAL PAPER
Two Novel Catalysts Constituted by Transition Metal-Oxide-Based Cluster Cation Frameworks with Big Ellipse Cavities Accommodated with {PMo12O40} Cluster Anions for Multifunctional Catalytic Properties Shu Y. Shi1 • Dan Bai1 • Hong X. Du1 • Wei Jiang1 • Jun Zhang2 • Xiao B. Cui3 Received: 30 October 2019 Springer Science+Business Media, LLC, part of Springer Nature 2019
Abstract Two novel hybrid compounds, [{Mo(NO3)2(2,20 -bpy)}0.5{Mo6O17(2,20 -bpy)6}][PMo12O40] (1); [{Mn(2,20 -bpy)2}0.5 {Mo6O17(2,20 -bpy)6}][PMo12O40] (2) (bpy = 2,20 -bpyridine), have been synthesized under mild hydrothermal conditions and structurally characterized by physico-chemical and series of spectroscopic methods. Two rare compounds which are basically isostructural with similar cell parameters are composed of transition metal-oxide-based cluster cations (TMOC) and classical Keggin type {PMo12O40} anions. Both [{Mo(NO3)2(2,20 -bpy)}0.5{Mo6O17(2,20 -bpy)6}]n and [{Mn(2,20 bpy)2}0.5{Mo6O17(2,20 -bpy)6}]n cluster cation fragments possess opened railway molybdenum-oxide-based infinite cation chains. Then through O_O bond interactions, the adjacent railway chains are linked together with inverse symmetry mode to generate two kinds of interesting 2D supramolecular positive layers accommodated with big ellipse {PMo12O40} anions. By H-bonding interactions, the alternative accumulations between layers and layers give rise to 3D supramolecular channel frameworks, and the {PMo12O40} anions from different layers each other also generate graphene-like negative inorganic sheets. The electrochemical behaviors and electrocatalytic activities of both compounds have been explored. The photocatalytic activities of compounds 1 and 2 for decomposition of rhodamine B (RhB), methylene blue (MB) and methyl orange (MO) under UV irradiation also have been investigated. The catalytic performances for the tertbutyl hydroperoxide (TBHP) oxidation of styrene also were carried out. The results show that compounds 1 and 2 exhibit multifunctional catalytic performances. Keywords Metal-oxide-based cluster cation Keggin-type cluster anion H-bonding Multifunctional catalytic performances
Introduction The design and synthesis of organic–inorganic hybrid materials based on polyoxometalates (POMs) and transition metal oxoclusters (TMOCs) or metal-oxide-based organic–inorganic clusters remain as a subject of great Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10876-019-01729-y) contains supplementary material, which is available to authorized users. & Jun Zhang [email protected] 1
Key Laboratory of Environmental Materials and Pollution Control, The Education Department of Jilin Province, College of Environmental Engineering, Jilin Normal University, Siping 136000, China
interest, since the wide and fascinating variety of structures and excellent properties such as catalysis, ion exchange, sorption, and molecular electronic [1–4], as well as their redox aci
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