3D Hierarchical Boron-Doped Diamond-Multilayered Graphene Nanowalls as an Efficient Supercapacitor Electrode
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2019-01-01 |
| Journal | The Journal of Physical Chemistry |
| Authors | Debosmita Banerjee, Kamatchi Jothiramalingam Sankaran, Sujit Deshmukh, Mateusz Ficek, Gourav Bhattacharya |
| Institutions | Hasselt University, Tamkang University |
Abstract
Section titled āAbstractāSynthesis of stable hybrid carbon nanostructure for high-performance supercapacitor electrode with long life-cycle for electronic and energy storage devices is a real challenge. Here, we present a one-step synthesis method to produce conductive boron-doped hybrid carbon nanowalls (HCNWs), where spĀ²-bonded graphene has been integrated with and over a three-dimensional curved wall-like network of spĀ³-bonded diamond. The spectroscopic studies such as X-ray absorption, Raman, and X-ray photoelectrons clearly reveal the coexistence of diamond and graphene in these nanowalls, while the detailed transmission electron microscopy studies confirm the unique microstructure where a diamond nanowall is encased by a multilayered graphene. Interestingly, these HCNWs yield a high double layer capacitance value of 0.43 mF cm-Ā² and electrode retention of 98% over 10āÆ000 cycles of charging/discharging in 1 M NaāSOā electrolyte. The remarkable supercapacitive performance can be attributed to the 3D interconnected network of diamond nanowalls surrounded by highly conducting graphene.
Tech Support
Section titled āTech SupportāOriginal Source
Section titled āOriginal Sourceā- DOI: None