Solvothermal preparation of spherical Bi2O3 nanoparticles uniformly distributed on Ti3C2Tx for enhanced capacitive performance

Li, Tao; Chang, Xuefeng; Mei, Lifang; Shu, Xiayun; Ma, Jiawei; Ouyang, Li; Gu, Siyong

doi:10.1039/d1na00443c

Cited by 7 publications

(4 citation statements)

References 53 publications

(73 reference statements)

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“…The electrode materials for pseudocapacitors mainly include metal oxides and conductive polymers [13,14]. Pseudocapacitors store energy through reversible reactions on the surface of the electrode, demonstrating a mechanism that is more intricate than that of EDLCs [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Manufacturing Shape-Controllable Flexible PEDOT/rGO Composite Electrodes for Planar Micro-Supercapacitors

Hu,

Guo,

Zhao

2024

Materials

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Flexible electronic products, with their characteristics of flexibility and wearability, have attracted significant attention and have become an important direction in the research and development of the electronics industry. Planar micro-supercapacitors (MSCs) with flexible composite electrodes can provide reliable energy support for these products, propelling their further development. The research employed a quick, effective, and environmentally friendly method of laser scribing to create shape-controllable flexible composite electrodes on composite films of Poly(3,4-ethylenedioxythiophene) and graphene oxide (PEDOT/GO), which were subsequently assembled into MSCs. An analysis of the composite electrode morphology, structure, and elemental distribution was conducted through the utilization of SEM, TEM, and XPS techniques. Following this, a comprehensive evaluation of the electrochemical performance of the flexible MSCs was carried out, which included cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and assessment of cyclic stability. The analysis of the CV results indicated that the MSCs achieved the areal capacitance of 5.78 mF/cm2 at 5 mV/s. After 5000 cycles at a current density of 0.05 mA/cm2, the capacitance retention rate was 85.4%. The high areal capacitance and strong cycle stability of MSCs highlight the potential of PEDOT/reduced graphene oxide (PEDOT/rGO) electrodes in electrode applications.

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Section: Introductionmentioning

confidence: 99%

Manufacturing Shape-Controllable Flexible PEDOT/rGO Composite Electrodes for Planar Micro-Supercapacitors

Hu,

Guo,

Zhao

2024

Materials

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“…21 An effective tactic to significantly enhance the capacitance of Ti 3 C 2 T x involves introducing an additional battery-type active component in Ti 3 C 2 T x . 22 Conventional Bi-based compounds, containing oxides, chalcogenides, and halides, are commonly used as electrode materials for supercapacitors owing to their high theoretical capacitance, natural abundance, quasi-Faradaic reactions, and low toxicity. Compared with the usual Bibased electrode materials, conductive metal−organic frameworks (MOFs) are a newly emerging type of electrode material that have attracted increasing attention because of their appropriate porosity and good electric conductivity.…”

Section: Introductionmentioning

confidence: 99%

“…In an alkaline electrolyte, Ti 3 C 2 T x exhibits non-Faradaic charge storage behavior through the establishment of a dual electrical layer at the interface between the electrode and the electrolyte . An effective tactic to significantly enhance the capacitance of Ti 3 C 2 T x involves introducing an additional battery-type active component in Ti 3 C 2 T x . Conventional Bi-based compounds, containing oxides, chalcogenides, and halides, are commonly used as electrode materials for supercapacitors owing to their high theoretical capacitance, natural abundance, quasi-Faradaic reactions, and low toxicity.…”

Section: Introductionmentioning

confidence: 99%

Conductive Bismuth-Catecholate Metal–Organic Frameworks Grown on Ti₃C₂T_x Nanosheets for High-Performance Supercapacitors

Chen,

Zhang,

Liu

et al. 2024

ACS Appl. Nano Mater.

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Ti 3 C 2 T x , as a member of the two-dimensional (2D) MXene family, is subject to severe self-restacking due to van der Waals forces between the surfaces of the nanosheets, which limits its application in supercapacitors. In addition, Ti 3 C 2 T x always stores electrical energy non-Faradaic, resulting in a low specific capacitance about 100 F g −1 in basic electrolytes. In this work, we report conductive bismuth-catecholate metal−organic frameworks (Bi(HHTP)) with one-dimensional (1D) channels grown on the surfaces of 2D Ti 3 C 2 T x nanosheets (Ti 3 C 2 T x /Bi(HHTP)) for supercapacitors. In the hybrid structure, conductive Bi(HHTP) serves not only as the spacers to relieve the self-stacking of Ti 3 C 2 T x nanosheets but also as the active component to provide batterytype capacitance. Meanwhile, Ti 3 C 2 T x nanosheets provide skeletons for the conductive Bi(HHTP), further enhancing the overall specific capacitance of Ti 3 C 2 T x /Bi(HHTP). By taking advantage of appropriate porosity, redox activity, and good properties of charge transport of Bi(HHTP), the specific capacitance of Ti 3 C 2 T x nanosheets is significantly increased. The Ti 3 C 2 T x /Bi(HHTP) electrode obtained exhibits an impressive specific capacitance of 326 F g −1 at 0.5 A g −1 and a good rate capacity of 52%. Additionally, an asymmetric device is assembled with a Ni(OH) 2 cathode and a Ti 3 C 2 T x /Bi(HHTP) anode, demonstrating remarkable performance with a maximum specific energy of 22.3 Wh kg −1 and a maximum specific power of 11.2 kW kg −1 . This work presents a promising strategy for developing highperformance supercapacitor electrodes based on Ti 3 C 2 T x , offering potential avenues for enhancing performance in energy storage applications.

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“…1. It delves into the analysis of these materials' characteristics, structural design, and preparation methods (electrochemical deposition, 21,22 chemical vapor deposition (CVD), 23 spin coating, 24 anodic oxidation, 25,26 magnetron sputtering, 27,28 etc. ), to address the challenges of the contradiction between ion transport kinetics and high capacitance density.…”

Section: Introductionmentioning

confidence: 99%

Recent progress on the materials and structure of supercapacitors for AC line filtering applications

Ma,

Sha,

Chen

et al. 2024

J. Mater. Chem. A

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Solvothermal preparation of spherical Bi₂O₃ nanoparticles uniformly distributed on Ti₃C₂T_x for enhanced capacitive performance

Abstract: Ti3C2Tx is a promising new two-dimensional layered material for supercapacitors with good electrical conductivity and chemical stability. However, Ti3C2Tx has problems such as collapse of the layered structure and low...

Cited by 7 publications

References 53 publications

Manufacturing Shape-Controllable Flexible PEDOT/rGO Composite Electrodes for Planar Micro-Supercapacitors

Manufacturing Shape-Controllable Flexible PEDOT/rGO Composite Electrodes for Planar Micro-Supercapacitors

Conductive Bismuth-Catecholate Metal–Organic Frameworks Grown on Ti₃C₂T_x Nanosheets for High-Performance Supercapacitors

Recent progress on the materials and structure of supercapacitors for AC line filtering applications

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Solvothermal preparation of spherical Bi2O3 nanoparticles uniformly distributed on Ti3C2Tx for enhanced capacitive performance

Abstract: Ti3C2Tx is a promising new two-dimensional layered material for supercapacitors with good electrical conductivity and chemical stability. However, Ti3C2Tx has problems such as collapse of the layered structure and low...

Cited by 7 publications

References 53 publications

Manufacturing Shape-Controllable Flexible PEDOT/rGO Composite Electrodes for Planar Micro-Supercapacitors

Manufacturing Shape-Controllable Flexible PEDOT/rGO Composite Electrodes for Planar Micro-Supercapacitors

Conductive Bismuth-Catecholate Metal–Organic Frameworks Grown on Ti3C2Tx Nanosheets for High-Performance Supercapacitors

Recent progress on the materials and structure of supercapacitors for AC line filtering applications

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Product

Resources

About

Solvothermal preparation of spherical Bi₂O₃ nanoparticles uniformly distributed on Ti₃C₂T_x for enhanced capacitive performance

Conductive Bismuth-Catecholate Metal–Organic Frameworks Grown on Ti₃C₂T_x Nanosheets for High-Performance Supercapacitors