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首页> 外文期刊>Electrocatalysis >Electrochemical Properties of Polyoxometalate (H3PMo(12)O(40))-Functionalized Graphitic Carbon Nitride (g-C3N4)
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Electrochemical Properties of Polyoxometalate (H3PMo(12)O(40))-Functionalized Graphitic Carbon Nitride (g-C3N4)

机译：多氧酸盐的电化学性质（H3PMO（12）O（40）） - 官能化石墨碳氮化物（G-C3N4）

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摘要

A functionalized polyoxometalate/graphitic carbon nitride (PMo12/g-C3N4) composite has been constructed to promote direct electron and ion exchange based on a facile, rapid wetness incipient method. The PMo12 displayed a natural affinity towards the carbon support which facilitated enhanced reversible redox processes with surface-controlled electron diffusion. The g-C3N4-functionalized PMo12 composite promoted effective oxidation and reduction of the Keggin molecule addenda atoms with reduced overpotential without the mediation of a polymeric linker to promote their exposure and interaction. The g-C3N4 offered increased surface area for anchoring PMo12, structural stability at increased temperatures, and repeated cycling as well as control of the density and position of PMo12 as probed by scanning electron microscopy and nuclear magnetic resonance spectroscopy, respectively. These results demonstrate that PMo12 clusters are sensitive to their local environment, including the interaction with the support, which stimulated enhanced current mobility.
机译：已经构建了官能化的多氧化膦/石墨碳氮化物（PMO12 / G-C3N4）复合材料，以促进基于容易的快速湿润初期方法的直接电子和离子交换。 PMO12向碳载体显示出自然亲和力，该碳载体有助于具有表面控制电子扩散的增强的可逆氧化还原过程。 G-C3N4官能化的PMO12复合材料促进了在没有聚合物连接器的中介的情况下减少过稳定性的高调，促进了Keggin分子加入原子的有效氧化和还原，以促进其暴露和相互作用。通过扫描电子显微镜和核磁共振光谱分别探测，G-C3N4提供了用于锚定PMO12的表面积增加，用于锚定下的PMO12，在增加的温度下的结构稳定性，以及重复循环以及PMO 12的密度和位置的控制。这些结果表明，PMO12集群对其本地环境敏感，包括与载体的相互作用，刺激增强的电流移动性。

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