TEMPLATED SYNTHESIS OF MESOPOROUS 3D CUBIC METAL ARCHITECTURES FROM THE SELF-ASSEMBLY OF BLOCK COPOLYMERS

摘要

The regular minimal planes that do not intersect each other, defined and discovered by mathematics and structural biology, allow chemists and material scientists to self-assemble into complex structures with nano- and meso-sized pores and regularly connected channels. influenced the design of The template synthesis method allows these structures to be transferred to a variety of solid materials, providing a useful platform for the development of materials with faster mass transfer rates, high area-to-area activity and stability. Conventionally, when it is desired to give a structure to a material, research on only one type of Schwartz D, G, and P planes, which are three cubic structures most commonly found in nature, has been actively studied. In this study, regular, interconnected and crystalline mesoporous nickel, platinum, and gold materials using other two Schwartz D and P planes, which have not yet been relatively actively studied, were treated without energy-intensive calcination or electroplating. It was synthesized using a two-step chemical reduction reaction under mild conditions. Since nickel material has been used as a substrate for chemical vapor deposition (CVD) for the synthesis of carbon materials, the mesoporous nickel synthesized in this study plays an important role in the discovery of carbon allotropes with negative Gaussian curvature. is expected to do In addition, nickel is being developed as a cheap catalyst material that can replace heavy metal catalysts, and platinum is also being developed in various fields such as increasing the surface area and activity by giving a structure, so it is expected to be widely used in the future. The difference between the well-known gyroid-type (Schwartz G-plane) structures and the structures synthesized in this study is expected to be noticeable in surface plasmon resonance. Therefore, a mesoporous gold material with Schwartz P and D planes was also synthesized. This study is expected to contribute to the advancement of research on the unique properties brought to materials by structures with Schwartz P and D planes, which have not been studied in detail.