Kun Huang1, Yuanjian Zhang1, Yun‐Ze Long2, Junhua Yuan1, Dongxue Han1, Zhijuan Wang1, Li Niu1, Zhaojia Chen2
1State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun 130022, China
2Laboratory of Extreme Condition Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
Tóm tắt
AbstractOne‐dimensional gold/polyaniline (Au/PANI‐CSA) coaxial nanocables with an average diameter of 50–60 nm and lengths of more than 1 μm were successfully synthesized by reacting aniline monomer with chlorauric acid (HAuCl4) through a self‐assembly process in the presence of D‐camphor‐10‐sulfonic acid (CSA), which acts as both a dopant and surfactant. It was found that the formation probability and the size of the Au/PANI‐CSA nanocables depends on the molar ratio of aniline to HAuCl4 and the concentration of CSA, respectively. A synergistic growth mechanism was proposed to interpret the formation of the Au/PANI‐CSA nanocables. The directly measured conductivity of a single gold/polyaniline nanocable was found to be high (≈77.2 S cm−1). Hollow PANI‐CSA nanotubes, with an average diameter of 50–60 nm, were also obtained successfully by dissolving the Au nanowire core of the Au/PANI‐CSA nanocables.
