| 左国防T,张建斌,王 鹏,李志锋.化学通报,2018,81(9):797-804. |
| 二维碳纳米薄膜制备的新途径——由自组装膜到石墨烯 |
| A New Prepared Way of Two-Dimensional Carbon Nanomembranes——From Self-Assembled Monolayers (SAMs) to Graphene |
| 投稿时间：2018-05-29 修订日期：2018-07-01 |
| DOI： |
| 中文关键词: 碳纳米薄膜(CNMs) 自组装膜(SAMs) 电子诱导交联 石墨烯 |
| 英文关键词:carbon nanomembrane (CNM) self-assembled monolayer (SAMs) electron induced cross-linliking graphene |
| 基金项目:国家自然科学基金项目 |
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| 中文摘要: |
| 本文描述了芳香族分子作为自组装单分子膜（SAMs）前驱体在电子辐照下引发芳香基团交联，在真空或惰性气氛中转化为具有较高热稳定性的碳纳米薄膜(CNMs)。CNMs具有足够的机械强度，可从其基底表面转移作为独立的薄膜材料，经高温淬火后转化为石墨烯。根据制备条件，如芳香分子前驱体的化学结构、电子辐照和淬火参数等，可以调整所制得的石墨烯的形状、结晶度、厚度、孔径等各种性能。各种芳香族硫醇，如低环及多环芳烃碳氢化合物，获得的CNMs的结构和功能由其单分子膜的结构所决定。文章详细讨论了电子辐射诱导SAMs芳香分子交联反应的机理。CNMs/石墨烯异质结构的非破坏性化学功能化组装为CNMs/石墨烯在电子、光子器件以及生物膜中的应用开辟了一条灵活的途径。 |
| 英文摘要: |
| This paper describes the formation of carbon nanomembranes (CNMs) by electron irradiation induced aromatic self-assembled monolayers (SAMs) as molecular precursors cross-linked in vacuum or in the inert atmosphere. CNMs by SAMs cross-linked with high mechanical strength can release from the substrate surface as free-standing membranes. Annealing at high temperature transforms CNMs into graphene. Depending on the production conditions, such as chemical structure of molecular precursors, irradiation and annealing parameters, various properties of graphene including shape, crystallinity, thickness and the size of the nanopores can be adjusted. Various aromatic thiols such as oligophenyls and polycyclic aromatic hydrocarbons, the structure and function of CNMs are decided by the structure of the monolayer. The mechanisms of electron-induced cross-linking SAMs process are discussed in details. The assembly of CNMs/graphene heterostructures opens a flexible route to non-destructive chemical functionalization of CNMs/graphene for a variety of applications in electronic, photonic devices and biomembranes. |
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