Fabrication and Characterization of Ag@C Nanocables with High Aspect Ratios by Hydrothermal Process

Abstract:

Abstract. This paper describes that high-yield Ag/C coaxial nanocables has been obtained via a simple hydrothermal approach through the in situ reaction of Ag+ and glucose in the condition of CTAB. The glucose not only acts as reducing agent but also as carbon source. It was found that high aspect ratio(>400)of nanocables with Ag nanowires core diameter (20-60)nm and various carbon shell thickness had been prepared in large scale with a facile aqueous reduction route at low temperatures for different times. All of the products were characterized in detail by multiform techniques: X-ray diffraction(XRD), transmission electron microscopy(TEM), high-resolution TEM(HRTEM), scanning electron microscopy(SEM), energy-dispersive X-ray spectroscopy (EDX).

• Periodical: Advanced Materials Research (Volume 669)
• Pages: 221-225
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.669.221
• Online since: March 2013
• Authors: Yong He Li, Yu Jie Li, Hao Yu Fu, Yue Fei Zhang, Li Zhen Yang, Qiang Chen
• Keywords: Ag@C Nanocables, Flexible, High Aspect Ratio, Hydrothermal

References

[1] Zhang S X, Francisco J, Lopez, Jerome K. Hyun, et al. Direct detection of hole gas in Ge−Si core−shell nanowires by enhanced Raman scattering, Nano lett. 10 (2010) 4483-4487.

DOI: 10.1021/nl102316b

[2] Li-Feng Cui, Yuan Yang, Ching-Mei Hsu, et al. Carbon−Silicon core−shell nanowires as high capacity electrode for lithium ion batteries, Nano Lett. 9 (2009) 3370-3374.

DOI: 10.1021/nl901670t

[3] André Müller, Sara E. C. Dale, Miles A. Engbarth, et al. Field-tunable diamagnetism in ferromagnetic–superconducting core–shellstructures, Adv. Funt. Mater. 21(2011) 1874-1880.

DOI: 10.1002/adfm.201100063

[4] Gai S H, Yang P P , Li C X , Synthesis of magnetic, up-conversion luminescent, and mesoporous core–shell-structured nanocomposites as drug carriers, Adv. Funct. Mater. 20 (2010) 1166-1172.

DOI: 10.1002/adfm.200902274

[5] Yin Y D, Lu Y, Sun Y G, et al. Silver nanowires can be directly coated with amorphous silica to generate well -controlled coaxial nanocables of silver/silica, Nano lett. 2 (2002) 427-430.

DOI: 10.1021/nl025508+

[6] Song X C, Zhao Y, Zheng Y F, et al. Fabrication of Ag/C coaxial nanocables with cross-linked structure by SDS-assisted hydrothermal approach, Cryst. Growth Des. 8 (2008) 1823-1826.

DOI: 10.1021/cg700761e

[7] Luo L B, Yu S H, Qian S H, et al. Large-scale fabrication of flexible silver/cross-linked poly(vinyl alcohol) coaxial nanocables by a facile solution approach, J. Am. Chem. Soc. 12 (2005) 2822-2823.

DOI: 10.1021/ja0428154

[8] Yu S H, Cui X J, Li L L, et al. From starch to metal/carbon hybrid nanostructures: hydrothermal metal-catalyzed carbonization, Adv. Mater. 16 (2004) 1636-1640.

DOI: 10.1002/adma.200400522

[9] Fang Z, Tang K B, Lei S J, et al. CTAB-assisted hydrothermal synthesis of Ag/C Nanostructures, Nanotechnology. 17 (2006) 3008–3011.

DOI: 10.1088/0957-4484/17/12/032

[10] Wu S Y, Ding Y S, Zhang X M, et al. Structure and morphology controllable synthesis of Ag/carbon hybrid with ionic liquid as soft-template and their catalytic properties. Journal of Solid State Chemistry. 181 (2008) 2171– 2177.

DOI: 10.1016/j.jssc.2008.05.006