MOF-derived Bi 2 O 3 @C microrods as negative electrodes for advanced asymmetric supercapacitors
Bismuth oxide (Bi O ) with high specific capacity has emerged as a promising negative electrode material for supercapacitors (SCs). Herein, we propose a facile metal-organic framework (MOF) derived strategy to prepare Bi O microrods with a carbon coat (Bi O @C). They exhibit ultrahigh specific capac...
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Published in | RSC advances Vol. 10; no. 24; pp. 14107 - 14112 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
England
06.04.2020
|
Online Access | Get full text |
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Summary: | Bismuth oxide (Bi
O
) with high specific capacity has emerged as a promising negative electrode material for supercapacitors (SCs). Herein, we propose a facile metal-organic framework (MOF) derived strategy to prepare Bi
O
microrods with a carbon coat (Bi
O
@C). They exhibit ultrahigh specific capacity (1378 C g
at 0.5 A g
) and excellent cycling stability (93% retention at 4000 cycles) when acting as negative electrode material for advanced asymmetric SCs. The assembled Bi
O
@C//CoNi-LDH asymmetric supercapacitor device exhibits a high energy density of 49 W h kg
at a power density of 807 W kg
. The current Bi-MOF-derived strategy would provide valuable insights to prepare Bi-based inorganic nanomaterials for high-performance energy storage technologies and beyond. |
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ISSN: | 2046-2069 2046-2069 |
DOI: | 10.1039/D0RA01470B |