期刊
NANOSCALE RESEARCH LETTERS
卷 8, 期 -, 页码 -出版社
SPRINGEROPEN
DOI: 10.1186/1556-276X-8-32
关键词
Graphene; Ag particles; Composite films; Graphene oxide; In situ reduction; Graphene paper; Electrical properties; Mechanical properties
资金
- National High-Tech R & D Program of China (863) [2011AA050504]
- National Natural Science Foundation of China [51102164]
- Program for New Century Excellent Talents in University
- Shanghai Science and Technology Grant [12JC1405700, 12nm0503800]
- Shanghai Pujiang Program [11PJD011]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, Medical-Engineering Crossover Fund [YG2012MS40, YG2012MS37]
- Science-Engineering Crossover Fund of Shanghai Jiao Tong University [X198052]
In this paper, we have reported that paper-like graphene-Ag composite films could be prepared by a facile and novel chemical reduction method at a large scale. Using ascorbic acid as a reducing agent, graphene oxide films dipped in Ag+ aqueous solutions can be easily reduced along with the decoration of different sizes of Ag particles distributed uniformly. The results reveal that the obtained films exhibit improved mechanical properties with the enhancement of tensile strength and Young's modulus by as high as 82% and 136%, respectively. The electrical properties of graphene-Ag composite films were studied as well, with the sheet resistance of which reaching lower than approximately 600 Omega/a-. The graphene-Ag composite films can be expected to find interesting applications in the area of nanoelectronics, sensors, transparent electrodes, supercapacitors, and nanocomposites.
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