Research Article

|

2018, 11(4): 1861–1872

|

https://doi.org/10.1007/s12274-017-1804-z

One-step synthesis of novel snowflake-like Si-O/Si-C nanostructures on 3D graphene/Cu foam by chemical vapor deposition

Jing Ning1,2,, Dong Wang1,2, (*), Jincheng Zhang1,2 (*), Xin Feng1,2, Ruixia Zhong1,2, Jiabo Chen1,2, Jianguo Dong1,2, Lixin Guo3, and Yue Hao1,2

View Author's information

1 The State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, Xidian University, Xian 710071, China
2 Shaanxi Joint Key Laboratory of Graphene, Xidian University, Xian 710071, China
3 School of Physics and Optoelectronic Engineering, Xidian University, Xian 710071, China
Jing Ning and Dong Wang contributed equally to this work.

Keywords: snowflake-like, nanostructures, graphene, chemical vapor deposition (CVD)
Full article PDF
Cite this article(Endnote)
Share this article
Metric

views: 142

Citations: 0

  • Abstract
  • References
  • Electronic Supplementary Material
ABSTRACT The recent development of synthesis processes for three-dimensional (3D) graphene-based structures has tended to focus on continuous improvement of porous nanostructures, doping modification during thin-film fabrication, and mechanisms for building 3D architectures. Here, we synthesized novel snowflakelike Si-O/Si-C nanostructures on 3D graphene/Cu foam by one-step low-pressure chemical vapor deposition (CVD). Through systematic micromorphological characterization, it was determined that the formation mechanism of the nanostructures involved the melting of the Cu foam surface and the subsequent condensation of the resulting vapor, 3D growth of graphene through catalysis in the presence of Cu, and finally, nucleation of the Si-O/Si-C nanostructure in the carbon-rich atmosphere. Thus, by tuning the growth temperature and duration, it should be possible to control the nucleation and evolution of such snowflake-like nanostructures with precision. Electrochemical measurements indicated that the snowflake-like nanostructures showed excellent performance as a material for energy storage. The highest specific capacitance of the Si-O/Si-C nanostructures was ~963.2 mF/cm2 at a scan rate of 1 mV/s. Further, even after 20,000 sequential cycles, the electrode retained 94.4% of its capacitance.
Related Article
Cite this article

One-step synthesis of novel snowflake-like Si-O/Si-C nanostructures on 3D graphene/Cu foam by chemical vapor deposition. Nano Res. 2018, 11(4): 1861–1872 https://doi.org/10.1007/s12274-017-1804-z

Download citation