Ordered Mesoporous C70 with Highly Crystalline Pore Walls for Energy Applications,Advanced Functional Materials

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Ordered Mesoporous C70 with Highly Crystalline Pore Walls for Energy Applications
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2018-07-13 , DOI: 10.1002/adfm.201803701
Mercy R. Benzigar ₁ , Stalin Joseph _{1,

2} , Arun V. Baskar _{1,

2} , Dae-Hwan Park ₂ , Goutam Chandra ₃ , Siva Umapathy ₃ , Siddulu Naidu Talapaneni ₂ , Ajayan Vinu ₁

Affiliation

Mesoporous materials with carbon framework structure can offer distinctive functionalities with tunable electronic or catalytic properties. Many synthetic routes including hard or soft templating approaches are developed for the fabrication of various ordered mesoporous carbon based materials which have demonstrated unique catalytic and energy storage properties. So far, most of these techniques deliver only mesoporous carbon with amorphous wall structures which limit their performance in many applications. Fullerenes exhibit unique structure and significant properties including superconductivity, electrochemical stability, and heat resistance. Herein, for the first time, the preparation of highly ordered mesoporous fullerene C₇₀ materials with tunable porous structure and controlled rod‐shaped morphology through the thermal oligomerization of fullerene C₇₀ molecules inside the mesopore channels of SBA‐15 silica as a hard template with the help of chlorinated aromatics, wherein the solubility of fullerenes is high, is reported. It is demonstrated that these metal‐free mesoporous fullerene C₇₀ framework with a high surface area and bimodal pores with multifunctionality exhibit excellent performance in the oxygen reduction reaction for fuel cells and supercapacitors. This simple strategy can also be extended to other fullerene nanostructures with different carbon atoms which can exhibit interesting physicochemical properties and find applications in catalysis and energy storage.

中文翻译：

订购具有中等结晶度孔壁的介孔C70，用于能源应用

具有碳骨架结构的中孔材料可以提供具有可调节的电子或催化特性的独特功能。已开发出许多包括硬模板或软模板方法的合成路线，用于制造各种有序介孔碳基材料，这些材料已显示出独特的催化和能量存储特性。迄今为止，大多数这些技术仅提供具有无定形壁结构的中孔碳，这限制了它们在许多应用中的性能。富勒烯具有独特的结构和显着的性能，包括超导性，电化学稳定性和耐热性。在此，首次制备了高度有序的介孔富勒烯C ₇₀据报道，通过SBA-15二氧化硅的中孔通道内的富勒烯C ₇₀分子热寡聚，作为硬模板，借助氯化芳族化合物，富勒烯的溶解度高，具有可调的多孔结构和可控制的棒状形貌的材料。事实证明，这些具有高表面积的无金属介孔富勒烯C ₇₀骨架和具有多功能性的双峰孔隙在燃料电池和超级电容器的氧还原反应中表现出出色的性能。这种简单的策略还可以扩展到具有不同碳原子的其他富勒烯纳米结构，这些结构可以表现出令人感兴趣的理化性质，并在催化和能量存储中找到应用。

更新日期：2018-07-13

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