Issue 5, 2017

Rich sulfur doped porous carbon materials derived from ginkgo leaves for multiple electrochemical energy storage devices

Abstract

A strategy of utilizing biomass in energy applications has been highly sought after due to low cost, renewability and environmental friendliness. In this work, based on the unique multilayered structure of ginkgo leaves, an interconnected carbon nanosheet with rich micro/meso pores has been fabricated using hydrothermal treatment and a KOH activation process. Attractively, due to the intensive reactions between the rich organism components of the ginkgo leaves and sulfuric acid in the preparation process, the highest amount of sulfur doping (8.245 wt%) ever reported has been achieved in the as-obtained biomass derived carbons. Combined with the N doping derived from the proteins in ginkgo leaves, S,N dual-doping porous carbons with an interconnected sheet-like structure demonstrate excellent electrochemical performance in both EDLCs and NIBs. The application in EDLCs in aqueous electrolyte showed a high specific capacitance of 364 F g−1 at 0.5 A g−1 and only 2% capacitance loss after 30 000 cycles. In an ionic liquid electrolyte, the devices were able to deliver an energy density of 16 W h kg−1 at an extremely high power density of 50 kW kg−1. As a sodium-ion battery anode, it has the capacity of 200 mA h g−1 after 500 cycles (99% capacity retention) at 0.2 A g−1, which is superior or at least comparable to those of biomass derived carbons reported recently. Therefore, all these results exhibit the promising potential of the ginkgo leaves-derived carbon for wide applications in the field of energy storage devices.

Graphical abstract: Rich sulfur doped porous carbon materials derived from ginkgo leaves for multiple electrochemical energy storage devices

Supplementary files

Article information

Article type
Paper
Submitted
20 Sep 2016
Accepted
08 Dec 2016
First published
08 Dec 2016

J. Mater. Chem. A, 2017,5, 2204-2214

Rich sulfur doped porous carbon materials derived from ginkgo leaves for multiple electrochemical energy storage devices

E. Hao, W. Liu, S. Liu, Y. Zhang, H. Wang, S. Chen, F. Cheng, S. Zhao and H. Yang, J. Mater. Chem. A, 2017, 5, 2204 DOI: 10.1039/C6TA08169J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements