writer：Lei Zhang, Peng Xiao, Wei Lu, Jiawei Zhang, Jincui Gu, Youju Huang* and Tao Chen*
keywords：macroscopic Janus ultrathin film, interfacial reactor, carbon nanotubes network, nanocatalysis
source：期刊
specific source：Adv. Mater. Interfaces, 2016, 3, 1600170-1600176
Issue time：2016年

Two-dimensional (2D) Janus thin films have received increasing attentions due to their unique asymmetric structures and fantastic applications. Herein, a macroscopic 2D freestanding Janus carbon nanotube/gold nanoparticles (CNTs/AuNPs) hybrid ultrathin film is successfully constructed at the air/liquid interface, using polydopamine modified unilaterally CNTs ultrathin network film as asymmetrical 2D interfacial reactor for in-situ selective growth of AuNPs on the unilateral water-side of CNTs film. The resultant macroscopic 2D freestanding Janus CNTs/AuNPs ultrathin film could be used directly as electrode materials and modify stably electrode with improved stability and operation feasibility. More importantly, the convenient and clean modification of Janus CNTs/AuNPs film on electrode is favorable to the electrons transmission in the electrode and remarkably improves the electrochemical sensitivity of GC, showing the ability of really exerting asymmetrical functionality of Janus 2D materials in a collaborative strategy.