The synthesis of carbon electrode from biomass derived eucalyptus leaves through a chemical activation process for supercapacitor cells application

Synthesis of Biomass-derived carbon material from eucalyptus leaves through chemical activation process
Synthesis of the carbon material using ZnCl2 as activating agent of various temperature
At optimum Condition, the synthesis of N-doped activated carbon through Chemical activation process
Study the Phase and structural, morphological, elemental, FTIR, and electrochemical measurement of various temperature using three electrode system

1. The synthesis of carbon electrode from biomass derived eucalyptus leaves through a chemical activation process for supercapacitor cells application Present by Praveen Banothu M.Tech Chemical Engineering Research guide Sampath Kumar P Assistant professor Department of Chemical Engineering National Institute o f Technology Warangal International Conference o n TECHNOLOGICAL INTERVENTIONS FOR SUSTAINABILITY CHEM-CONFLUX 22 Paper Id: 80

2. Outline Biomass resources and utilization Supercapacitor Literature Objectives Experimental work Results and discussion Conclusion References

3. Biomass Resources and Utilization Prashant Dubey et al. Carbon 170 (2020) 1-29

4. Classification of Super capacitors

5. Literature Title Composition / Biomass Carbon (C) Hydrogen (H) Nitrogen (N) Sulfur (S) Oxygen (O) Thermal pyrolysis and kinetic parameter determination of mango leaves using common and new proposed parallel kinetic models Mango leaves 40.8 5.11 1.06 0.12 52.91 Oxidative fast pyrolysis of banana leaves in fluidized bed reactor Banana leaves 48 3.2 1.2 0.33 47.27 Activated carbon from flash pyrolysis of eucalyptus residue Eucalyptus leaves 74.25 3.67 0.18 0.05 21.85

6. Objectives Synthesis of Biomass-derived carbon material from eucalyptus leaves through chemical activation process Synthesis of the carbon material using ZnCl 2 as activating agent of various temperature At optimum Condition, the synthesis of N-doped activated carbon through Chemical activation process Study the Phase and structural, morphological, elemental, FTIR, and electrochemical m easurement of various temperature using three electrode system

7. Experimental Procedure Fig.1 Flow Sheet for synthesis of carbon material

8. Results and Discussion X-ray Diffraction and Raman spectroscopy : Fig.3 show that two peaks which indicates the D (disorder) and G (graphite) band at wave number of 1350 cm -1 and 1569 cm -1 respectively the intensity ratio of I D /I G partially depend on graphitization peaks Higher the value of intensity ratio (I D /I G ) indicates the higher electrical conductivity Fig.2 XRD Pattern of carbon material obtained at various temperature Fig.3 Raman pattern of CM-700 o C and NCM-700 o C Sample Name I D I G I­ D /I G CM-700 717.1 717.45 0.9995 NCM-700 754.31 754.86 0.9992

9. Scanning Electronic Microscopy Fig.4 SEM images of untreated ( a, b), CM-700 o C( c, d), and NCM-700 o C (e, f)

10. Electrochemical Performance Evaluation Electrode preparation CH Instrument Cyclic Voltammetry

11. Cyclic Voltammetry (CV ) and Galvano-static Charge and Discharge (GCD) Fig.5 Cyclic Voltammetry of (a) CM-700 o C (b) NCM-700 o C at various scan rate Fig.6 GCD of (a) CM-700 o C (b) NCM-700 o C at various current density

12. CV and GCD curve Of CM and NCM of 700 o C Fig.7 CV curve Of CM and NCM of 700 o C at a scan rate of 5 mV/s Fig.8 GCD curve Of CM and NCM of 700 o C at a Current density of 0.25 A/g

13. Effect of Temperature on CV and GCD Curve and specific capacitance Fig.9 Cyclic voltammetry curves at a scan rate of 5 mV/s of various temperature Fig.10 Effect of temperature on specific capacitance Fig.11 GCD curve at a current density of 0.25 A/g of Various temperature Fig.12 Effect of temperature on specific capacitance

14. Specific capacitance comparison of various biomass Bio mass Material Specific capacitance (F/g) Activating agent Banana leaves Activated carbon 114 K 2 CO 3 Willow leaves Activated carbon 216 ZnCl 2 Tremella Activated carbon 71 KOH ginkgo leaves Activated Carbon 272 KOH Peanut shell N-doped Porous carbon 251 KOH Eucalyptus Leaves (This work) Activated Carbon and N-doped activated carbon 183 and 208 ZnCl 2

15. Conclusion In this work, sustainable, environmentally friendly, and low-cost activated carbons were prepared by using eucalyptus leaves as carbon precursor for the application in supercapacitors T he carbon material at 700 o C prepared by the ZnCl 2 activation of Eucalyptus leaves derived carbon exhibited best specific capacitance (183 F/g at 0.25 A/g) compare to other temperature carbon material The N-doped carbon material improved the specific capacitance (208 F/g) at optimum temperature condition using urea as n itrogen doping agent As increasing the carbonization temperature leads increase the graphitization of carbon material and forming more uniform pores. These results signify that the CM and NCM are a very promising candidate of electrode active materials to fabricate practical supercapacitors in view of its cheapness, environmentally friendly and renewable source material

16. References Noeli Sellin , Diego Ricardo Krohl , Cintia Marangoni, Ozair Souza. Oxidative fast pyrolysis of banana leaves in fluidized bed reactor, renewable energy. volume 96, part A,   October 2016, Pages 56-64. Grima-Olmedo C, Ramírez-GómezÁ , Gómez- LimónD , Clemente-Jul., Activated carbon from flash pyrolysis of eucalyptus residue. Heliyon 2 (2016 ). Chanchal Kumar Roy, Syed Shaheen Shah, Akter H. Reaz , Sharmin Sultana, Al- Nakib Chowdhury, Shakhawat H. Firoz , Md. Hasan Zahir , Mohammed Ameen Ahmed Qasem , Md. Abdul Aziz. Preparation of Hierarchical Porous Activated Carbon from Banana Leaves for High-performance Supercapacitor: Effect of Type of Electrolytes on Performance. Chem. Asian J. 10.1002/asia.202001342 Yuvarat Ngernyen , Chaiyot Tangsathitkulchai , Malee Tangsathitkulchai . Porous properties of activated carbon produced from Eucalyptus and Wattle wood by carbon dioxide activation. Korean J. Chem. Eng., 23(6), 1046-1054 (2006). Nannan Guo , Min Li, Xingkai Sun, Feng Wang, Ru Yang. Tremella derived ultrahigh specific surface area activated carbon for high performance supercapacitor. Materials Chemistry and Physics 201 (2017) 399-407 Yang Liu, Yanzhong Wang, Guoxiang Zhang, Wei Liu, Donghua Wang and Yingge Dong. Preparation of activated carbon from willow leaves and evaluation in electric double-layer capacitors. Materials Letters, 2016 Prashant Dubey, Vishal Shrivastav, Priyanka H. Maheshwari, Shashank Sundriyal. Recent advances in biomass derived activated carbon electrodes for hybrid electrochemical capacitor applications: Challenges and opportunities. Carbon 170 (2020) 1-29 Y . Tan, Y. Li, W. Wang, and F. Ran, “High performance electrode of few-layer-carbon@bulk-carbon synthesized via controlling diffusion depth from liquid phase to solid phase for supercapacitors,” J. Energy Storage, vol. 32, no. July, p. 101672, 2020.

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