TY - JOUR
T1 - Hybrid Material of PANI with TiO2-SnO2
T2 - Pseudocapacitor Electrode for Higher Performance Supercapacitors
AU - Bolagam, Ravi
AU - Boddula, Rajender
AU - Srinivasan, Palaniappan
N1 - Funding Information:
The authors thank CSIR, New Delhi under the TAPSUN program (NWP-0056) for funding. Authors also thank Dr. Vijaya Mohanan K. Pillai, Director and Dr. S. Gopukumar, Senior Principal Scientist, CSIR - CECRI, Karaikudi for supporting this work. Ravi and Rajender are thankful to UGC for financial assistance.
Publisher Copyright:
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/1/10
Y1 - 2017/1/10
N2 - Mixed metal oxide composites of TiO2-SnO2 were prepared by varying the quantities of SnCl2.2H2O by the impregnation method to TiO2. Aniline monomer was polymerized in the suspension of TiO2-SnO2 to form organic-inorganic composite materials, in which metal oxide particles were embedded within polyaniline (PANI-SA). Formation of the composite was confirmed from FT-IR, XRD and EDAX analyses and morphological image was found from FE-SEM. The electrochemical properties were investigated using CV, CD and EIS analyses. PANI-SA•TiO2-SnO2 showed higher electrochemical performances than that of PANI-SA•TiO2 or PANI-SA•SnO2, which areattributed from (i) higher electron transfer rate due to reduction in band gap and (ii) more space between the nano rods, which allow the electrolyte to interact more surface of the electrode. The best PANI-SA•TiO2-SnO2 material exhibited a specific capacitance of 540 F g−1 with an energy density of 27 Wh kg−1at a power density of 200 W kg−1. Retention in capacitance of 85 % was obtained even at 6000 cycles and this organic-inorganic composite fulfilled the requirement of long durability necessary for an energy storage system.
AB - Mixed metal oxide composites of TiO2-SnO2 were prepared by varying the quantities of SnCl2.2H2O by the impregnation method to TiO2. Aniline monomer was polymerized in the suspension of TiO2-SnO2 to form organic-inorganic composite materials, in which metal oxide particles were embedded within polyaniline (PANI-SA). Formation of the composite was confirmed from FT-IR, XRD and EDAX analyses and morphological image was found from FE-SEM. The electrochemical properties were investigated using CV, CD and EIS analyses. PANI-SA•TiO2-SnO2 showed higher electrochemical performances than that of PANI-SA•TiO2 or PANI-SA•SnO2, which areattributed from (i) higher electron transfer rate due to reduction in band gap and (ii) more space between the nano rods, which allow the electrolyte to interact more surface of the electrode. The best PANI-SA•TiO2-SnO2 material exhibited a specific capacitance of 540 F g−1 with an energy density of 27 Wh kg−1at a power density of 200 W kg−1. Retention in capacitance of 85 % was obtained even at 6000 cycles and this organic-inorganic composite fulfilled the requirement of long durability necessary for an energy storage system.
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U2 - 10.1002/slct.201601421
DO - 10.1002/slct.201601421
M3 - Article
AN - SCOPUS:85034776916
SN - 2365-6549
VL - 2
SP - 65
EP - 73
JO - ChemistrySelect
JF - ChemistrySelect
IS - 1
ER -