以氢氧直接合成过氧化氢反应为应用背景，研究多形态核酸组装模板对双金属纳米团簇的生长及其催化活性的调节规律，分子模拟与实验研究相结合，揭示核酸组装模板作用下Pd、Pt、Ni、Ag等不同金属纳米团簇协同生长的规律，优化核酸模板实现对Ni-Pd、Ag-Pd、Ni-Pt、Ag-Pt、Ag-Ni等双金属纳米团簇中各组分价态、分散度的有效调控，获得高活性负载型低成本、双金属纳米团簇催化剂的制备方法；研究双金属纳米团簇催化剂的失活机理与回收再生方法，实现氢氧直接合成过氧化氢反应的过程强化。本项目取得的研究成果将有助于从分子生物学角度深入揭示不同金属离子与DNA核酸分子的识别机理，为新型催化材料的理性设计提供有益指导，促进金属纳米团簇催化剂的应用，并推动绿色化学工程学科的发展。

Aiming to explore the direct catalytic synthesis of hydrogen peroxide from hydrogen and oxygen, the effect of polymorphic DNA assembled templates on the growth of bimetallic nanoclusters and the catalytic performance will be studied. It will disclose the nanocluster growth synergic relationship between different metals including Pd, Pt, Ni, Ag, etc. modulated by DNA assembled templates, on the basis of molecular modeling and experimental characterizations. DNA templates will be optimized in order to adjust the valence and the dispersal of each component in the bimetallic nanoclusters such as Ni-Pd, Ag-Pd, Ni-Pt, Ag-Pt, Ag-Ni, and so on. High efficient supported bimetallic nanocluster catalyst is to be prepared with low cost. The deactivation of such bimetallic nanocluster catalyst will be studied as well as its recycled usage. Direct synthesis of hydrogen peroxide from hydrogen and oxygen will be intensified using the prepared bimetallic nanocluster catalysts. The research results obtained in this project will promote the thorough investigation on recognition mechanism between DNA and metal ions in the view of molecular biology, provide the guidance on rational design of novel catalytic materials, accelerate the application of metal nanocluster catalysts, and be beneficial to the development of green chemical engineering.