Sahed Presentation on Research project.pptx

Polymer nano composite

1. Department of Chemical Engineering & Polymer Science, Shahjalal University of Science and Technology PRESENTATION ON RESEARCH course code- CEP480 Supervisor Dr Muhammad Zobayer Bin Mukhlish Professor,CEP,SUST. Presented by Sahed Ahmad Reg no :2018332050 Session :2018-19 1

2. Title : Study on Synthesis and Characterization of Conductive Polymer nanocomposites Based Electrode for supercapacitor. 2

3. Introduction Research Aim Preparation of PANI/conductive polymers composites for high performance supercapacitors. Our research project focuses on exploring the potential of conducting polymer supercapacitors as a solution for energy storage in the rapidly developing market for energy. . . .. Objectives To synthesize Poly aniline(PANI) and its composite. To characterize the synthesized composites To conduct the electrochemical & elemental analysis of the synthesized composites. To fabricate the supercapacitor utilizing the synthesized composites To evaluate the electrochemical performance of the supercapacitor. 3

4. What is Supercapacitor? Application Supercapacitor is a new type of energy storage device with high power density and long cycle life. Fig : Schematic diagram of a supercapacitor 4

5. Why Supercapacitor? Fig : Ragone Plot 5

6. Significant of `r’ Here r is the ratio between the number of mole of monomer(aniline) and the number of mole of oxidant (ammonium peroxydisulfate). The yield, composition, conductivity, and degree of oxidation are all independent of the value of "r" when r is less than 1.15 The resulting polymer's yield and conductivity are reduced when r exceeds 1.15 due to over oxidation . 6

7. Methodology Synthesis of PANI using In situ polymerization Methodology 7

8. Synthesis of PANI- BaCl 2 Composite : 1. To create 0.3M and 0.5M concentrated solutions of BaCl2, 7.33g and 12.21g of BaCl2 were first dissolved in 100 ml of water in two separate beakers, respectively. 2. added 0.1g of treated polymer (PANI) to each beaker and mix for 24 hours to finish doping. 3. It was vacuum-filtered and water-washed after a 24-hour period. 4. To get rid of the oligomeric material, it was first cleaned with ethanol and then again with acetone to get rid of any water and contaminants. 5. Lastly, the cake that was produced was stored in a disk and dried in a drier. *** Similar methodology used to synthesize PANI-SnCl 2 ,PANI-CoCl 2 and PANI-CrCl 3 . 8

9. Methods of calculations i(v) = Voltage scan rate dependent current in ‘A’ = Lower potential in ‘V’, = Higher potential in ‘V’, m = Active electrode material weight ‘g’, = Voltage scan rate in ‘V/s’.   F/g .... (1) In This Experiment, Working Electrode (Glassy Carbon) Area, A= 0.071 cm 2   Specific capacitance from cyclic voltammetry For Supercapacitor Device … (2) .... (3)   I = current (A), t = discharge time (s), ∆V=voltage difference, m =weight of materials,  

10. Fig :Electrochemical setup of three electrodes system 10

11. FTIR (PANI-r=0.5) IR Peak(cm -1 ) Assignments 3409 N-H stretching 2928 C-H stretching 1300 C-N stretching 1600 C=C stretching 795 C-H plane bending 11

12. FTIR ( PANI-BaCl 2 composite) IR Peak(cm -1 ) Assignments 3463 N-H stretching 2348 C-H stretching 1469 C-N stretching 1600 C=C stretching 813 C-H plane bending 671 Ba-N stretching 12

13. FTIR (PANI-SnCl 2 Composite) IR Peak(cm -1 ) Assignments 3471 N-H stretching 2365 C-H stretching 1475 C-N stretching 1590 C=C stretching 669 C-H plane bending 516 Sn-N stretching 13

14. FTIR (PANI-CrCl 3 Composite) IR Peak(cm -1 ) Assignments 3173 N-H stretching 2361 C-H stretching 1409 C-N stretching 1588 C=C stretching 794 C-H plane bending 672 Cr-N stretching 14

15. FTIR (PANI-CoCl 2 Composite) IR Peak(cm -1 ) Assignments 3475 N-H stretching 2353 C-H stretching 1425 C-N stretching 1601 C=C stretching 813 C-H plane bending 488 Co-N stretching 15

16. Cyclic voltammetry (CV) of PANI composites (0.3M salt) 16

17. Change of Specific Capacitance, Energy density, Power density as a function of scanrate (0.3M salt) 17

18. Comparison of Specific Capacitance, Energy density, Power density of PANI-composite (0.3M salt) 18

19. Change of Specific Capacitance, Energy density, Power density as a function of scanrate (0.5M Salt) 19

20. Comparison of Specific Capacitance, Energy density, Power density of PANI-composite (0.5M salt) 20

21. Fig:Cyclic voltammetry (CV) curves of Real Cell 21

22. Change of Specific Capacitance, Energy density, Power density as a function of scanrate (2 electrode system) 22

23. Comparison of Specific Capacitance, Energy density, Power density of PANI-composite (Real Cell) 23

24. Fabrication of Supercapacitor 24

25. Recommendation for future study There are several opportunities for further study. Some of the future perspectives include: • In this study, PANI was the only polymer used in the making and characterisation of polymer composites. For further characterization, various conducting polymers like Polyacetylene (PA), Poly (phenylenes) (PPs), Poly(phenylenevinylene) (PPV), Polyfuran (PF), and other derivatives may be utilized. • In this study, polymer composites were synthesized and characterized using the chemicals BaCl2, CrCl3, CoCl2, and SnCl2. Therefore, more noble TMD and TMO may be employed for subsequent production and characterization at various concentrations. • In this work, PANI was used for the synthesis and characterisation of the polymer and its composites. Therefore, by including all the other conductive polymers, further research may be done. • In this study, Nafion adhesive was used to drop cast the electrode material. The use of sticky materials like PVA, PVDF, and others may be used in future studies. 25

26. Conclusion PANI-CrCl 3 showed the highest specific capacitance of 1306 F/g, followed by PANI-BaCl 2 (1057 F/g) in two electrode system and PANI-CoCl 2 (440 F/g), PANI-SnCl 2 (420 F/g) in three electrode system. In terms of energy density and power density, PANI-CrCl 3 also outperformed the other three nanocomposites, with a value of 306 Wh /kg and 11103 W/kg, respectively. For PANI-CrCl 3 and PANI-BaCl 2 , both materials exhibited excellent charge storage performance at low and high scan rates. If we compare our experimental results with some published papers for Specific Capacitance of PANI and PANI-Metal composites we can see that our synthesized composites are well within the range for further consideration as a potential supercapacitor electrode material. 26

27. Reference : [01] M. M. Rahman, P. M. Joy, M. N. Uddin, M. Z. B. Mukhlish, and M. M. R. Khan, “Improvement of Capacitive Performance of Polyaniline based Hybrid Supercapacitor,” [2] Y. Zhai, Y. Dou, D. Zhao, P. F. Fulvio, R.T. Mayes, and S. Dai, “Carbon materials for chemical capacitive energy storage,” Advanced Materials. 23: 4828–4850 (2011). [3] P. G. Bruce, S. A. Freunberger, L. J. Hardwick, and J. M. Tarascon, “LigO2 and LigS batteries with high energy storage,” Nat. Mater., vol. 11, no. 1, pp. 19–29 (2012). [4] A. Gupta, and M. Kumar, “Synthesis of Polyaniline without Metal Doping and Its Characterization,” Journal of Materials Science & Surface Engineering 6, no. 3: 802–4 (2018). doi.org/10.jmsse/2348-8956/6-3.3. [5] T. Anwer, M. O. Ansari, F. Mohammad, Polym. Plast. Technol. Eng., 52, 47 (2013). [6] S. Bengt, “Battery Technologies,” Hydrogen, Batteries and Fuel Cells, 57–79 (2019). doi.org/10.1016/b978-0-12-816950-6.00004-x. 27

28. Thank you 28