Acid Induced Self-Assembly Strategy to Synthesize Ordered Mesoporous Carbons from Biomass
Acid Induced Self-Assembly Strategy to Synthesize Ordered Mesoporous Carbons from Biomass
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酸诱导自组装策略从生物质合成有序介孔碳
DOI：
10.1021/acssuschemeng.6b01196
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发表时间：
2016-08-01
影响因子：
8.4
通讯作者：
Wang, Yong
中科院分区：
文献类型：
--
作者：
Xu, Fan;Chen, Yiqing;Wang, Yong
生物质水热碳化是一种经济、可持续的功能炭材料制备技术。然而，由于要求复杂，将生物质引入到有序介孔碳材料的合成中进展缓慢。生物质衍生的有序介孔碳材料的制备仍然具有挑战性。在此，我们报道了一种简单有效的策略，利用可再生的环境友好的戊糖，通过一锅水热合成法合成有序介孔碳材料。所合成的有序介孔碳材料具有二维六方对称的介孔结构和丰富的官能团。机理研究表明，酸促进了碳前驱体和软模板的自组装，从而诱导了有序介孔碳质材料在水热条件下的形成。这是首次报道（SH+X-I+）-H-0自组装机制在生物质体系中获得成功。此外，这些独特的材料在催化加氢中作为载体表现出出色的性能。值得注意的是，这种酸诱导的自组装策略将为设计功能性生物质衍生碳材料开辟新的途径。
Hydrothermal carbonization of biomass is an economic and sustainable technique for the fabrication of functional carbonaceous materials. However, the introduction of biomass into synthesis of ordered mesoporous carbon materials achieves slow progress due to complicated requirements. It is still challenging to prepare biomass-derived ordered mesoporous carbon materials. Herein, we report a simple and effective strategy to synthesize ordered mesoporous carbon materials from renewable and environment-friendly pentose using one-pot hydrothermal synthesis. The as-synthesized ordered mesoporous carbon materials show mesopores of two-dimensional hexagonal symmetry and rich functional groups. Mechanism studies indicate that the acid facilitates the self-assembly of carbon precursors and soft templates and therefore induced the formation of ordered mesoporous carbonaceous materials under hydrothermal conditions. This is the first report on the (SH+X-I+)-H-0 self-assembly mechanism that achieves success in biomass system. In addition, the unique materials show outstanding performance as supports in catalytic hydrogenation. Significantly, this acid induced self-assembly strategy will open up new avenues for designing functional biomass-derived carbon materials.