TY - JOUR
T1 - Bismuth oxycarbonate Nanoplates@α-Ni(OH)2 nanosheets 2D plate-on-sheet heterostructure as electrode for high-performance supercapacitor
AU - Shetty, Manjunath
AU - Manickavasakam, Karnan
AU - Kulal, Nagendra
AU - Shivaramu, Prasanna D.
AU - Rani, M. Navya
AU - Shastri, Mahesh
AU - M, Murthy
AU - Babu, S. Jagadeesh
AU - Shanbhag, Ganapathi V.
AU - Sathish, Marappan
AU - Rangappa, Dinesh
N1 - Funding Information:
The author acknowledges the partial support from the VGST, Vision Group of Science and Technology , Department of Information Technology , Biotechnology and Science & Technology , Government of Karnataka under CESEM Scheme Grant No.: VGST/CESEM/2012-13/281 and the TEM facility, funded by a TPF Nanomission, GOI project at Centre for Nano and Soft Matter Sciences, Bengaluru.
Funding Information:
The author acknowledges the partial support from the VGST, Vision Group of Science and Technology, Department of Information Technology, Biotechnology and Science & Technology, Government of Karnataka under CESEM Scheme Grant No.: VGST/CESEM/2012-13/281 and the TEM facility, funded by a TPF Nanomission, GOI project at Centre for Nano and Soft Matter Sciences, Bengaluru.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/4/15
Y1 - 2021/4/15
N2 - In the development of better-architectures in nanomaterials for energy storage devices, heterostructures have played an important role. In this paper, we have reported a new class of nanocomposite with two-dimensional plate-on-sheet heterostructure Bi2O2CO3 nanoplates@α-Ni(OH)2 nanosheets (BCNP@NHNS) based nanocomposite was synthesized via a simple one-pot hydrothermal approach. The fabricated BCNP@NHNS plate-on-sheet heterostructure exhibit better cyclic performance with higher specific capacitance than those of pristine Bi2O2CO3 and α-Ni(OH)2. The optimized electrodes delivered a high specific capacity up to 743 F g−1 at an applied current density of 3 A g−1. Further, fabricated two-electrode symmetric supercapacitor (SSC) with KOH aqueous electrolyte delivered an energy density of 73.7 Wh kg−1 coupled with a power density of 872.7 W kg−1 and high capacitance of 725 F g−1 at a current density of 1 A g−1. The retention of specific capacity up to 92.8% was achieved after 5000 cycles. The superior performance of BCNP@NHNS nanocomposite as a potential electrode material for supercapacitors with long cycling life is owed to the synergetic effect of the heterostructure in the nanocomposite.
AB - In the development of better-architectures in nanomaterials for energy storage devices, heterostructures have played an important role. In this paper, we have reported a new class of nanocomposite with two-dimensional plate-on-sheet heterostructure Bi2O2CO3 nanoplates@α-Ni(OH)2 nanosheets (BCNP@NHNS) based nanocomposite was synthesized via a simple one-pot hydrothermal approach. The fabricated BCNP@NHNS plate-on-sheet heterostructure exhibit better cyclic performance with higher specific capacitance than those of pristine Bi2O2CO3 and α-Ni(OH)2. The optimized electrodes delivered a high specific capacity up to 743 F g−1 at an applied current density of 3 A g−1. Further, fabricated two-electrode symmetric supercapacitor (SSC) with KOH aqueous electrolyte delivered an energy density of 73.7 Wh kg−1 coupled with a power density of 872.7 W kg−1 and high capacitance of 725 F g−1 at a current density of 1 A g−1. The retention of specific capacity up to 92.8% was achieved after 5000 cycles. The superior performance of BCNP@NHNS nanocomposite as a potential electrode material for supercapacitors with long cycling life is owed to the synergetic effect of the heterostructure in the nanocomposite.
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U2 - 10.1016/j.jallcom.2020.158495
DO - 10.1016/j.jallcom.2020.158495
M3 - Article
AN - SCOPUS:85098697773
SN - 0925-8388
VL - 860
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 158495
ER -