Effects of the particle size of BaMnO3 powders on the electrochemical performance of supercapacitor electrodes

Tanapongpisit, Nantawat; Wongprasod, Suchunya; Laohana, Peerawat; Kim, Sangmo; Butburee, Teera; Meevasana, W.; Maensiri, Santi; Bark, Chung Wung; Saenrang, Wittawat

doi:10.1016/j.matlet.2022.132258

Cited by 8 publications

(4 citation statements)

References 11 publications

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“…Interestingly, after 2000 cycles, CNF-5hTiO 2 only exhibits a slight increase in specific capacitance from 117 to 118 F g –1 (101%). This slight variation could be attributed to incomplete electrochemical activation . The other electrodes can be described as follows: after 2000 cycles, the specific capacitance of CNF-Bare, CNF-10hTiO 2 , and CNF-15hTiO 2 decreases from 94 to 89 F g –1 (95%), 109 to 103 F g –1 (94%), and 96 to 91 F g –1 (95%), respectively.…”

Section: Resultsmentioning

confidence: 99%

“…This slight variation could be attributed to incomplete electrochemical activation. 65 The other electrodes can be described as follows: after 2000 cycles, the specific capacitance of CNF-Bare, CNF-10hTiO 2 , and CNF-15hTiO 2 decreases from 94 to 89 F g −1 (95%), 109 to 103 F g −1 (94%), and 96 to 91 F g −1 (95%), respectively. These results are consistent with the EIS results, indicating that the cycle stability decreases in the following order: CNF-5hTiO 2 , CNF-Bare, CNF-15hTiO 2 , and CNF-10TiO 2 .…”

Section: Electrochemical Measurementmentioning

confidence: 99%

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Porous Electrospun Carbon Nanofibers Bearing TiO₂ Hollow Nanospheres for Supercapacitor Electrodes

Wongprasod,

Tanapongpisit,

Laohana

et al. 2024

ACS Appl. Nano Mater.

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A facile fabrication method was introduced to enhance the specific surface area and porosity of the carbon nanofibers. The carbon nanofibers bearing TiO 2 hollow nanosphere electrodes were synthesized using an electrospinning technique followed by heat treatment. Varying amounts of as-prepared TiO 2 hollow nanospheres were incorporated into the polymer precursor to examine their impact on the electrode enhancement. The electrochemical performance of supercapacitor electrodes composed of carbon nanofibers bearing TiO 2 hollow nanospheres was investigated. Results revealed that the specific capacitance of the bare carbon nanofibers electrode (170 F g −1 at a current density of 0.5 A g −1 ) was significantly improved upon when embedded with 5 wt % TiO 2 hollow nanospheres of 191 F g −1 . Additionally, the carbon nanofibers bearing 5 wt % TiO 2 hollow nanosphere electrodes demonstrated excellent cycling stability, retaining 97% of its initial specific capacitance even after 10000 cycles. Additionally, the electrochemical performance of asymmetric supercapacitors from these electrodes was also demonstrated. These findings highlight the ability of as-prepared TiO 2 hollow nanospheres to improve the efficiency of the carbon nanofibers electrode due to the optimum porosity to the amount of TiO 2 hollow nanospheres in the carbon nanofibers, opening up possibilities for the development of high-performance supercapacitors.

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Section: Resultsmentioning

confidence: 99%

Section: Electrochemical Measurementmentioning

confidence: 99%

Porous Electrospun Carbon Nanofibers Bearing TiO₂ Hollow Nanospheres for Supercapacitor Electrodes

Wongprasod,

Tanapongpisit,

Laohana

et al. 2024

ACS Appl. Nano Mater.

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“…Based on the oxygen intercalation mechanism, in the charge/discharge process, the anion vacancies of oxides, including interstitial positions between lattice and oxygen defects in the lattice, can serve as charge storage sites . As the pseudocapacitance derives from reversible insertion and deinsertion of OH – ions, this oxide electrode can provide significantly broader potential windows of 1.8 V. In addition, numerous binary composite oxides possessing a similar perovskite structure, such as Sr 2 CoMo 1– x Ni x O 6−δ , BaMnO 3 , SrFe 1– x Zr x O 3−δ , and so on, also show high electrochemical performance according to this mechanism . As a result, these kinds of oxides can reinforce the energy storage performance of carbon materials and maintain high conductivity through combining with them. − Oliva et al added Ca 2.9 La 0.1 Co 4 O 9 (CaLaCo) particles with a microplate morphology into the graphene electrode to improve the capacitance.…”

Section: Introductionmentioning

confidence: 99%

CNT@SrTiO₃ Nanocomposites Synthesized by In Situ Reaction for a High-Performance Flexible Supercapacitor

Cao,

Li,

Zhong

et al. 2024

ACS Omega

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This study presents the in situ synthesis of CNT@ SrTiO 3 nanocomposite films for the development of highperformance flexible supercapacitors. The synthesis process involved the use of organic−inorganic hybrid polymers containing metal elements as precursors for thermal decomposition reaction under a reducing atmosphere. Due to the formation of chemical bonding between Ti elements and the CNTs, the interface between STO and CNT surface could provide additional active sites for ion transport and storage. Thereby, the incorporation of SrTiO 3 nanoparticles into CNTs enhanced the electrochemical performance of the resulting nanocomposite membranes. To further investigate the influence of STO content and synthesis temperature, we conducted a detailed analysis. The findings indicated that the CNT@STO film with 25% STO content, synthesized at 700 °C, and possessed optimal performance with an areal capacitance of 6682 mF•cm −2 at 5 mV•s −1 . Furthermore, a symmetrical flexible supercapacitor assembled by two CNT@STO-25 electrodes demonstrated strong application potential in wearable devices, owing to its long cycle life, excellent flexibility, and high energy density of 430.2 μWh•cm −2 (corresponding power density of 4.5 mW•cm −2 ). Based on these results, we believe that this study provides a fresh idea for the development of novel flexible energy storage materials.

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“…The energy storage mechanism of electrochemical capacitors relies on double-layer electric capacitors (EDLCs) and pseudocapacitors. Enhancing the interaction between the electrode and the electrolyte emerges as a requisite for augmenting supercapacitive efficacy. − To enhance the electrochemical performance of materials, a significant emphasis has been placed on the synthesis of porous materials. This approach is underpinned by the principle that increasing the surface area of materials can substantially improve their catalytic activity.…”

Section: Introductionsmentioning

confidence: 99%

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

Thonge,

Dhas,

Waghmare

et al. 2024

ACS Appl. Nano Mater.

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Our study presents a facile hydrothermal approach for synthesizing NiMn 2 O 4 and NiMn 2 O 4 /C nanostructures (NSs) intended for implementation as electrode materials in highperformance supercapacitors. The NiMn 2 O 4 and NiMn 2 O 4 /C NSs synthesized via the hydrothermal method were comprehensively characterized using XRD, FE-SEM, FT-IR, XPS, and BET. Subsequently, the electrochemical performance of both NiMn 2 O 4 and NiMn 2 O 4 /C was evaluated via CV, GCD, and EIS in 2 M KOH aqueous electrolyte. Our results demonstrate that the NiMn 2 O 4 /C electrode revealed a substantial specific capacitance/capacity of 789.3 F g −1 /552.5 C g −1 at a scan rate of 5 mV s −1 . Furthermore, the NiMn 2 O 4 /C electrode maintained a specific capacity retention of less than 4% after 5000 cycles. When coupled with an activated carbon (AC) electrode, the NiMn 2 O 4 /C//AC configuration exhibited a notable specific capacitance/capacity of 101.6 F g −1 /162.5 C g −1 , accompanied by a high energy density of 36.11 W h kg −1 at a power density of 1000 W kg −1 , and sustained excellent cyclic stability (84% retention after 5000 cycles). Additionally, electrochemical analysis revealed an overpotential of 199 mV at 50 mA cm −2 and a minimal Tafel slope of 89 mV dec −1 for the oxygen evolution reaction (OER), suggesting the suitability of the NiMn 2 O 4 /C electrode for alkaline water electrocatalysis. Prolonged chronopotentiometry investigations at 100 mA cm −2 over 24 h further demonstrated a remarkable 97.3% retention of the OER activity.

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Effects of the particle size of BaMnO3 powders on the electrochemical performance of supercapacitor electrodes

Cited by 8 publications

References 11 publications

Porous Electrospun Carbon Nanofibers Bearing TiO₂ Hollow Nanospheres for Supercapacitor Electrodes

Porous Electrospun Carbon Nanofibers Bearing TiO₂ Hollow Nanospheres for Supercapacitor Electrodes

CNT@SrTiO₃ Nanocomposites Synthesized by In Situ Reaction for a High-Performance Flexible Supercapacitor

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

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Effects of the particle size of BaMnO3 powders on the electrochemical performance of supercapacitor electrodes

Cited by 8 publications

References 11 publications

Porous Electrospun Carbon Nanofibers Bearing TiO2 Hollow Nanospheres for Supercapacitor Electrodes

Porous Electrospun Carbon Nanofibers Bearing TiO2 Hollow Nanospheres for Supercapacitor Electrodes

CNT@SrTiO3 Nanocomposites Synthesized by In Situ Reaction for a High-Performance Flexible Supercapacitor

Facile Hydrothermal Synthesis of NiMn2O4/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction

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Product

Resources

About

Porous Electrospun Carbon Nanofibers Bearing TiO₂ Hollow Nanospheres for Supercapacitor Electrodes

Porous Electrospun Carbon Nanofibers Bearing TiO₂ Hollow Nanospheres for Supercapacitor Electrodes

CNT@SrTiO₃ Nanocomposites Synthesized by In Situ Reaction for a High-Performance Flexible Supercapacitor

Facile Hydrothermal Synthesis of NiMn₂O₄/C Nanosheets for Solid-State Asymmetric Supercapacitor and Electrocatalytic Oxygen Evolution Reaction