Nanowire Na0.35MnO2 from a hydrothermal method as a cathode material for aqueous asymmetric supercapacitors

Zhang, B.H.; Liu, Yu; Chang, Zhaorong; Yang, Yongliang; Wen, Zubiao; Wu, Yuping; Holze, Rudolf

doi:10.1016/j.jpowsour.2013.12.011

Cited by 79 publications

(52 citation statements)

References 36 publications

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“…Redox peaks are observed, which suggests a pseudocapacitance behavior. CV curves of AC electrode shows an ideal rectangular shape from 0 to À 1.05 V (vs. SCE), which reveals the characteristic of the double layer capacitance [20]. Fig.…”

Section: Resultsmentioning

confidence: 82%

Na2CoSiO4 as a novel positive electrode material for sodium-ion capacitors

Gao

Zhao

et al. 2015

Materials Letters

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Section: Resultsmentioning

confidence: 82%

Na2CoSiO4 as a novel positive electrode material for sodium-ion capacitors

Gao

Zhao

et al. 2015

Materials Letters

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“…Considering the lack of lithium (Li), the substitutions of Li have attracted enormous attention, such as sodium (Na), potassium (K), due to their low cost, abundant resources, and similar electrochemical properties to Li . It has been applied in supercapacitor, e.g., NaMnO 2 , K 0.27 MnO 2 ·0.6H 2 O, and Na 0.95 MnO 2 . In addition, sodium‐ion batteries (SIBs) and potassium‐ion batteries (KIBs) are getting more attention.…”

Section: Introductionmentioning

confidence: 99%

Sandwich‐like MoS₂@SnO₂@C with High Capacity and Stability for Sodium/Potassium Ion Batteries

Chen

Yin

Zhang

2018

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165

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Sandwich-like MoS @SnO @C nanosheets are prepared by facile hydrothermal reactions. SnO nanosheets can attach to exfoliated MoS nanosheets to prevent restacking of adjacent MoS nanosheets, and carbon transformed from polyvinylpyrrolidone is coated on MoS @SnO , forming a sandwich structure to maintain cycling stability. As an anode for sodium-ion batteries, the electrode greatly deliverers a high initial discharge specific capacity of 530 mA h g and maintains at 396 mA h g after 150 cycles at 0.1 A g . Even at a large current density of 1 A g , it can hold 230 mA h g after 450 cycles. Besides, as an anode for K storage, the electrode also shows a discharge capacity of 312 mA h g after 25 cycles at 0.05 A g . This work may provide a new strategy to prepare other composites which can be applied to new kind of rechargeable batteries.

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“…At present, carbonaceous materials are still the most mainly used anode materials, such as activated carbon, grapheme, and nitrogen-doped carbons29303132. However, carbonaceous materials show quite small specific capacitances (100–250F g −1 ) compared with pseudocapacitive anode33343536.…”

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confidence: 99%

Assembly of flexible CoMoO4@NiMoO4·xH2O and Fe2O3 electrodes for solid-state asymmetric supercapacitors

Wang

Zhang

Liu

et al. 2017

Sci Rep

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In this work, CoMoO4@NiMoO4·xH2O core-shell heterostructure electrode is directly grown on carbon fabric (CF) via a feasible hydrothermal procedure with CoMoO4 nanowires (NWs) as the core and NiMoO4 nanosheets (NSs) as the shell. This core-shell heterostructure could provide fast ion and electron transfer, a large number of active sites, and good strain accommodation. As a result, the CoMoO4@NiMoO4·xH2O electrode yields high-capacitance performance with a high specific capacitance of 1582 F g−1, good cycling stability with the capacitance retention of 97.1% after 3000 cycles and good rate capability. The electrode also shows excellent mechanical flexibility. Also, a flexible Fe2O3 nanorods/CF electrode with enhanced electrochemical performance was prepared. A solid-state asymmetric supercapacitor device is successfully fabricated by using flexible CoMoO4@NiMoO4·xH2O as the positive electrode and Fe2O3 as the negative electrode. The asymmetric supercapacitor with a maximum voltage of 1.6 V demonstrates high specific energy (41.8 Wh kg−1 at 700 W kg−1), high power density (12000 W kg−1 at 26.7 Wh kg−1), and excellent cycle ability with the capacitance retention of 89.3% after 5000 cycles (at the current density of 3A g−1).

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Nanowire Na0.35MnO2 from a hydrothermal method as a cathode material for aqueous asymmetric supercapacitors

Cited by 79 publications

References 36 publications

Na2CoSiO4 as a novel positive electrode material for sodium-ion capacitors

Na2CoSiO4 as a novel positive electrode material for sodium-ion capacitors

Sandwich‐like MoS₂@SnO₂@C with High Capacity and Stability for Sodium/Potassium Ion Batteries

Assembly of flexible CoMoO4@NiMoO4·xH2O and Fe2O3 electrodes for solid-state asymmetric supercapacitors

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Nanowire Na0.35MnO2 from a hydrothermal method as a cathode material for aqueous asymmetric supercapacitors

Cited by 79 publications

References 36 publications

Na2CoSiO4 as a novel positive electrode material for sodium-ion capacitors

Na2CoSiO4 as a novel positive electrode material for sodium-ion capacitors

Sandwich‐like MoS2@SnO2@C with High Capacity and Stability for Sodium/Potassium Ion Batteries

Assembly of flexible CoMoO4@NiMoO4·xH2O and Fe2O3 electrodes for solid-state asymmetric supercapacitors

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Sandwich‐like MoS₂@SnO₂@C with High Capacity and Stability for Sodium/Potassium Ion Batteries