Department of Physics

Indian Institute Of Technology Madras , Chennai

Three-dimensional scaffolding framework of porous carbon nanosheets derived from plant wastes for high-performance supercapacitors - Experimental Condensed Matter Physics and Nanoscience

Speaker : Sandhyarani

2017-10-19

Abstract :

Utilizing carbon materials derived from sustainable biomass on supercapacitors has become particularly attractive recently. High-performance activated carbons (ACs) based on inexpensive, abundant but un-wanted natural wastes are highly preferred. Using dry elm samara as the prototype, demonstrated that three-dimensional (3-D) scaffolding frameworks of highly porous carbon nanosheets(PCNSs) can be derived from plant wastes having specific natural morphology,i.e. half-transparent thin flakes, through a facile carbonization and activation treatment. The products possess a high accessible surface area induced by the 3-D framework, and a high density of micro-pores, which benefit large ion storage and high-rate ion transfer. In addition to the electric double-layer capacitor, the heteroatom doping evokes the faradic contribution. This work provides a clear strategy on how to select promising plant-waste candidates for high-performance ACs applied on energy storage.

References
M. Sevilla, R. Mokaya Energy Environ. Sci., 7 (2014), pp. 1250-⁠1280
P. Simon, Y. Gogotsi Nat. Mater., 7 (2008), pp. 845-⁠854
L. Qie, W.M. Chen, H.H. Xu, X.Q. Xiong, Y. Jiang, F. Zou, X.L. Hu, Y. Xin, Z.L. Zhang, Y.H. Huang Energy Environ. Sci., 6 (2013), pp. 2497-2504

Key Speaker Sandhyarani
Guests None
Place Seminar Room
Start Time 4:00 PM
Finish Time 5:00 PM
External Link None