Ordered Mesoporous Carbon Featuring Single-Crystal Morphology and Tunable Pore Architectures via EtOH-Mediated Micelle Assembly

IF 13 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Small Pub Date : 2025-04-24 DOI:10.1002/smll.202502475

Yang Li, Yanhong Liu, Kun Zhang, Xue Liu, Jiaao Hu, Shenghui Jiao, Sha Luo, Chunhui Ma, Wei Li, Shouxin Liu

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Abstract

The precise control of reaction kinetics and the synchronous regulation of the micelle assembly in the soft-templating method for synthesizing ordered mesoporous carbon presents a significant challenge. In this study, a versatile ethanol-mediated self-assembly strategy is introduced to synthesize ordered mesoporous carbons (OMCs) with diverse morphologies and well-defined mesostructures using liquefied wood (LW). Ethanol functions as both a proton-trapping agent and a linker between carbon precursors and templates, enabling fine-tuned regulation of the self-assembly kinetics while providing additional hydrogen bonding interactions. Furthermore, the micelle structure can be precisely manipulated from cylindrical to spherical through ethanol-induced selective swelling of hydrophilic blocks, resulting in a reduction in packing parameter (p) from 1/3 < (p) < 1/2 to (p) ≤ 1/3. Notably, the spherical composite micelles self-assemble into single crystals with highly ordered body-centered mesostructures. The fabricated ordered mesoporous carbon single crystal (OMCSC) electrochemical sensing polymers exhibit absolute enantiomeric discrimination for L- and D-tryptophan. This EtOH-mediated self-assembly approach not only elucidates the role of ethanol in the self-assembly process but also offers a promising pathway for fabricating versatile OMCs from renewable biomass resources.

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有序介孔碳具有单晶形态和可调的孔隙结构，通过乙羟基介导的胶束组装

在合成有序介孔碳的软模板法中，反应动力学的精确控制和胶束组装的同步调节是一个重大挑战。在这项研究中，引入了一种通用的乙醇介导的自组装策略，以液化木材（LW）合成具有不同形态和明确介孔结构的有序介孔碳（OMCs）。乙醇作为质子捕获剂和碳前驱体和模板之间的连接剂，在提供额外的氢键相互作用的同时，能够对自组装动力学进行微调调节。此外，通过乙醇诱导的亲水性块的选择性膨胀，可以精确地控制胶束结构从圆柱形变为球形，从而使填料参数(p)从1/3 <；(p) & lt;1/2到(p)≤1/3。值得注意的是，球形复合胶束自组装成单晶，具有高度有序的体心介观结构。所制备的有序介孔碳单晶（OMCSC）电化学传感聚合物对L-色氨酸和d -色氨酸具有绝对的对映分辨能力。这种乙醇介导的自组装方法不仅阐明了乙醇在自组装过程中的作用，而且为利用可再生生物质资源制造多功能omc提供了一条有希望的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Small 工程技术-材料科学：综合

CiteScore

17.70

自引率

3.80%

发文量

1830

审稿时长

2.1 months

期刊介绍： Small serves as an exceptional platform for both experimental and theoretical studies in fundamental and applied interdisciplinary research at the nano- and microscale. The journal offers a compelling mix of peer-reviewed Research Articles, Reviews, Perspectives, and Comments. With a remarkable 2022 Journal Impact Factor of 13.3 (Journal Citation Reports from Clarivate Analytics, 2023), Small remains among the top multidisciplinary journals, covering a wide range of topics at the interface of materials science, chemistry, physics, engineering, medicine, and biology. Small's readership includes biochemists, biologists, biomedical scientists, chemists, engineers, information technologists, materials scientists, physicists, and theoreticians alike.