Nature Communications ( IF 14.7 ) Pub Date : 2023-02-06 , DOI: 10.1038/s41467-023-36362-x Mark Robertson 1 , Alejandro Guillen-Obando 1 , Andrew Barbour 1 , Paul Smith 1 , Anthony Griffin 1 , Zhe Qiang 1
The ability to manufacture ordered mesoporous materials using low-cost precursors and scalable processes is essential for unlocking their enormous potential to enable advancement in nanotechnology. While templating-based methods play a central role in the development of mesoporous materials, several limitations exist in conventional system design, including cost, volatile solvent consumption, and attainable pore sizes from commercial templating agents. This work pioneers a new manufacturing platform for producing ordered mesoporous materials through direct pyrolysis of crosslinked thermoplastic elastomer-based block copolymers. Specifically, olefinic majority phases are selectively crosslinked through sulfonation reactions and subsequently converted to carbon, while the minority block can be decomposed to form ordered mesopores. We demonstrate that this process can be extended to different polymer precursors for synthesizing mesoporous polymer, carbon, and silica. Furthermore, the obtained carbons possess large mesopores, sulfur-doped carbon framework, with tailorable pore textures upon varying the precursor identities.
中文翻译:
从热塑性弹性体直接合成有序介孔材料
使用低成本前体和可扩展工艺制造有序介孔材料的能力对于释放其推动纳米技术进步的巨大潜力至关重要。虽然基于模板的方法在介孔材料的开发中起着核心作用,但传统系统设计中存在一些限制,包括成本、挥发性溶剂消耗以及商业模板剂可达到的孔径大小。这项工作开创了一个新的制造平台,通过直接热解交联的热塑性弹性体基嵌段共聚物来生产有序的介孔材料。具体来说,烯烃多数相通过磺化反应选择性交联,随后转化为碳,而少数嵌段可以分解形成有序的中孔。我们证明该过程可以扩展到不同的聚合物前体,用于合成介孔聚合物、碳和二氧化硅。此外,所获得的碳具有大中孔、硫掺杂碳骨架,并在改变前体特性时具有可定制的孔结构。