Synthesis of yolk-shell Bi2O3@TiO2 submicrospheres with enhanced potassium storage

Xu, Yifan; Zhang, Hehe; Ding, Tangjing; Tian, Ruiqi; Sun, Dongmei; Wang, Mingsheng; Zhou, Xiaosi

doi:10.1007/s11426-022-1365-4

Cited by 20 publications

(12 citation statements)

References 50 publications

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“…Bi 2 O 3 → Bi + K 2 O → K 3 Bi (Fig. 7a–c), 118,119 Bi 2 O 3 possesses remarkable theoretical capacity of 690 mA h g −1 . However, due to the poor conductivity of oxides and the irreversible electrochemical potassium storage process, the actual capacity contribution is much lower.…”

Section: Bi-based Compounds For Pibsmentioning

confidence: 98%

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Advances in bismuth-based anodes for potassium-ion batteries

Jia,

Lu,

Yang

et al. 2024

J. Mater. Chem. A

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Section: Bi-based Compounds For Pibsmentioning

confidence: 98%

“…Among the various research studies on bismuth chalcogenides for PIB anodes, Bi 2 O 3 has received little attention. 118–122 This may be related to its poor electrochemical performance considering the large bandgap. 52 Based on the conversion-alloying mechanism, i.e.…”

Section: Bi-based Compounds For Pibsmentioning

confidence: 99%

Advances in bismuth-based anodes for potassium-ion batteries

Jia,

Lu,

Yang

et al. 2024

J. Mater. Chem. A

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“…Meanwhile, it is momentous to develop environmentally friendly and sustainable advanced energy storage and efficient energy conversion systems to meet the increasing energy demand. The traditional lithium-ion battery (LIB) is considered an efficient energy storage system, which is widely used in various aspects of life, such as consumer electronics and electric vehicles. , Nevertheless, the limited theoretical capacity of traditional LIBs is difficult to meet the demands of long time, long distance, and high energy density for energy storage devices. − …”

Section: Introductionmentioning

confidence: 99%

Advanced Li/Na–CO₂ Batteries Enabled by the γ-MnO₂ Catalyst with Enhanced Carbonate Decomposition

Chen

Liu

et al. 2023

ACS Appl. Mater. Interfaces

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Metal−CO 2 batteries, especially Li−CO 2 and Na− CO 2 batteries, are regarded as ideal new-generation energy storage systems owing to their high energy density and extraordinary CO 2 capture capability. However, the advancement of metal−CO 2 batteries is still at an early stage. The problems caused by accumulation of carbonates during charge−discharge cycles, such as large polarization and poor reversibility, restrict their practical application. Therefore, designing efficient catalysts is crucial for promoting the decomposition of carbonate to improve the electrochemical performance of metal−CO 2 batteries. Herein, we first adopted sea urchin-like γ-MnO 2 as the cathode material for Li/ Na−CO 2 batteries. Benefiting from the unique structure and excellent catalytic activity of γ-MnO 2 , the as-prepared Li−CO 2 and Na−CO 2 batteries can achieve low overpotentials of 1.28 and 1.36 V, respectively, at a current density of 100 mA g −1 with a cutoff capacity of 1000 mA h g −1 . The overpotentials are lower than those of most of the state-of-the-art catalysts in previous reports. After 100 and 50 cycles of Li−CO 2 and Na−CO 2 batteries, respectively, their charging termination voltages remain at around 4.1 and 3.9 V, respectively; such a low charging platform indicates the excellent catalytic activity of the γ-MnO 2 cathode on the discharge products. Our findings offer a promising guideline to design efficient electrocatalysts for high-performance metal−CO 2 batteries.

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“…Electrodeposition has become a promising technology to fabricate functional films in anode or cathode for electrocatalysis, , energy storage, − and sensors . The transitional metal oxides − and hydroxides can be directly deposited on a conductive substrate via electrochemical redox reactions . The uniformity of the deposited films is determined by the surface potential distribution on the electrode.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Simulation Insights into Electrodeposition Kinetics at the Interface of Planar Microelectrodes

Zhu,

Xu,

Chen

et al. 2023

J. Phys. Chem. C

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The electrodeposition kinetics that occur at the planar microelectrode/electrolyte interface are considered as the key theoretical basis for ensuring large-scale uniform deposition. Herein, the dynamic process of electrodeposition at the interface of planar microelectrodes can be visualized and analyzed under the condition of multiphysics coupling through the finite element simulation. The relationships among the potential gradient distribution, electrolyte conductivity, and electrode spacing on the microelectrodes were simulated by the finite element simulation, revealing the vertical potential distribution from top to bottom during electrodeposition. The immersed surface of the microelectrode into the electrolyte tended to the equipotential surface during constant voltage deposition. The cathodic electrodeposition was optimized to achieve uniform films of nickel cobalt layered double hydroxides on Au interdigitated poly(ethylene terephthalate) substrates as flexible microelectrodes under the guidance of the simulated dynamic process, including electrode spacing, electrolyte conductivity, and deposition time and voltage. The flexible quasi-solid microsupercapacitors assembled by the PET microelectrodes can gain a decent energy density of 0.011 μW h cm −2 at the power density of 1.25 μW cm −2 and a long-term cycling stability with 85.53% capacitance retention after 20000 charge/ discharge cycles.

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Synthesis of yolk-shell Bi2O3@TiO2 submicrospheres with enhanced potassium storage

Cited by 20 publications

References 50 publications

Advances in bismuth-based anodes for potassium-ion batteries

Advances in bismuth-based anodes for potassium-ion batteries

Advanced Li/Na–CO₂ Batteries Enabled by the γ-MnO₂ Catalyst with Enhanced Carbonate Decomposition

Finite Element Simulation Insights into Electrodeposition Kinetics at the Interface of Planar Microelectrodes

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Synthesis of yolk-shell Bi2O3@TiO2 submicrospheres with enhanced potassium storage

Cited by 20 publications

References 50 publications

Advances in bismuth-based anodes for potassium-ion batteries

Advances in bismuth-based anodes for potassium-ion batteries

Advanced Li/Na–CO2 Batteries Enabled by the γ-MnO2 Catalyst with Enhanced Carbonate Decomposition

Finite Element Simulation Insights into Electrodeposition Kinetics at the Interface of Planar Microelectrodes

Contact Info

Product

Resources

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Advanced Li/Na–CO₂ Batteries Enabled by the γ-MnO₂ Catalyst with Enhanced Carbonate Decomposition