“Selective synthesis of carbon nanorings via asymmetric intramicellar
phase-transition induced tip-to-tip assembly”
被 ACS Central Science 接受发表！
Lu Hou, Wen-Cui Li, Chen-Yu Liu, Yu Zhang, Wei-Hong Qiao, Jia Wang, Dong-Qi Wang, Chuan-Hong Jin, An-Hui Lu*. Selective synthesis of carbon nanorings via asymmetric intramicellar phase-transition induced tip-to-tip assembly. ACS Central Science, 2021, Accepted. DOI:10.1021/acscentsci.1c00735. [DOWNLOAD]
Selective synthesis of energetically less favorable ring-shaped nanostructures by liquid phase synthetic chemistry is a huge challenge. Herein, we report a precise synthesis of carbon nanorings with well-defined morphology and tunable thickness based on asymmetric intramicellar phase-transition induced tip-to-tip assembly via mixing hydrophobic long chain octadecanol and block copolymer F127. This orientational self-assembly depends on hydrophobicity difference of intermediate’s surface, which triggers directional interactions that surpass the entropy cost of undesired connections and help assemble intermediates into defined ringy structures. Based on ringy template, carbon nanorings with adjustable sizes can be attained by changing synthetic variables. More importantly, diverse units including crescent-like, pod-like, garland-like nanostructures can also be created through controlling the kinetics of the self-assembly process. This discovery lays a solid foundation for the challenging construction of such precise configuration on nanoscale, which would not only promote fundamental studies but also pave the way for the development of advanced nanodevices with unique properties.