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具有丰富拓扑学结构和电子性质的多金属氧酸盐(POM)是许多有机反应的有效催化剂.近几年来,这种纯无机网络结构的POM催化剂被拓展应用到了水氧化析出氧气的研究热点领域,并展示了良好的催化活性.本论文综述了近几年POMs基材料在水氧化领域应用的最新进展.从结构和效能方面,论述了Ru和Co等金属修饰的POM类催化剂,尤其集中在包含四核Ru和四核Co的Sandwich型结构的POM,结构式分别为[Ru4O4(OH)2(H2O)4(γ-SiW10O36)2]10-和[Co4(H2O)2(α-PW9O34)2]10-.这类金属修饰的POM对水氧化产生氧气显示了较好的电催化或光催化活性.然而,依然需要进一步深入的研究工作来阐述整个催化反应机制,以达到优化催化反应体系的目的.本论文也着重综述了水氧化的最新发展趋势:以离子液体作为电解液来调控水自身的环境,从而促使水氧化.另外,本论文也展望了POM基材料在水氧化领域的未来发展趋势.
Polyoxometalates (POMs) with rich topological structure and electronic properties are effective catalysts for many organic reactions.In recent years, the POM catalysts with pure inorganic networks have been extended to the hot research fields of water oxygenation , And showed a good catalytic activity.In this paper, the recent progress in the application of POMs based materials in the field of water oxidation was reviewed in this paper.From the aspects of structure and performance, POM catalysts modified by metals such as Ru and Co were discussed, The POM of Sandwich type structure containing tetranuclear Ru and tetranuclear Co has the structural formula of [Ru4O4 (OH) 2 (H2O) 4 (γ-SiW10O36) 2] 10- and [Co4 (H2O) 2 (α-PW9O34) 2 ] 10-. These metal-modified POMs show good electrocatalytic or photocatalytic activities for the oxidation of water to oxygen, however, further research work is still needed to elucidate the entire catalytic reaction mechanism in order to optimize the catalytic reaction system The purpose of this thesis is also to review the latest trend of water oxidation: using ionic liquid as electrolyte to regulate water’s own environment and promote water oxidation.In addition, the paper also looks forward to the future development of POM-based materials in the field of water oxidation Trend Potential.