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Synthesis of reduced graphene oxide nanoscrolls embedded in polypyrrole matrix for supercapacitor applications
Priyanka Atri a, Dinesh Chandra Tiwari a*, Rishi Sharma b
a School of Studies in Physics, Jiwaji University, Gwalior-474011, M.P., India
b MEMS and Microsensors Group, CSIR-Central Electronics Engineering Research Institute (CEERI), Pilani-333031, Raj., India
Corresponding Authors
Prof. Dinesh Chandra TiwariSchool of Studies in PhysicsJiwaji University, Gwalior (M.P.)IndiaEmail: [email protected]. No.: +91-751-2442756 (O)
Fig. S1. EDX elemental analysis of rGO was performed during TEM analysis.
(S1)
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Table S1. EDX elemental composition of rGO of Fig. S1.
Element Wt% At%
C (K) 99.74 99.80
O (K) 00.25 00.19
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(a)
(b)
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Fig. S2 (a-d). FESEM images of PPy-rGO scrolls at different magnifications indicating the rGO scrolls of different dimensions embedded into the PPy matrix.
(c)
(d)
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Fig. S3. EDX elemental spot analysis on rGO nanoscrolls embedded in PPy matrix of PPy-rGO nanoscroll composite performed during FEG-SEM analysis.
Fig. S4. EDX elemental spot analysis on PPy matrix of PPy-rGO nanoscrolls composite performed during FEG-SEM analysis.
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Fig. S-5 and S-6. TEM image of PPy-rGO shows the rGO nanoscrolls embedded into the PPy, encircled portion of the image S5 at higher magnification is shown in Fig. 4(b).
(S5)
(S6)
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Fig. S7. UV-Vis spectra of chemically synthesized rGO.
180 280 380 480 580 680 7800.07
0.09
0.11
0.13
0.15
0.17
0.19
Wavelength (nm)
Ab%
Fig. S8. UV-Vis spectra of PPy-rGO nanoscrolls composite (Sample-1).
Wavelength (nm)
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Fig. S9. FTIR spectra of PPy and PPy-rGO nanoscroll (Sample-1).