Electrochemical performance of RuO<sub>2</sub>-TiO<sub>2</sub>nanotube hybrid electrode material

Xie, Yibing; Chen, Yao

doi:10.1088/2053-1591/ab69c9

Cited by 33 publications

(14 citation statements)

References 45 publications

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“…Synthesizing composites can improve the utilization of RuO 2 and reduce the cost of RuO 2 electrode [ 57 ]. At the same time, the synergistic effect of the materials is beneficial to improve the electrochemical performance of the electrode.…”

Section: Tmos-based Electrode Materialsmentioning

confidence: 99%

“…At the same time, the synergistic effect of the materials is beneficial to improve the electrochemical performance of the electrode. Various forms of RuO 2 -based electrodes have been prepared such as metal sulfide-RuO 2 electrode, metal oxide-RuO 2 electrode, carbon material-RuO 2 electrode, and multicomponent RuO 2 -based electrode [ 39 , 57 , 58 , 59 , 60 , 61 ]. Asim et al [ 62 ] decorated carbon nanotubes (CNTs) grown carbon cloth (CNTS-CC) with RuO 2 nanorods (RuO 2 -NRs) via chemical vapor deposition (CVD) and the annealing process.…”

Section: Tmos-based Electrode Materialsmentioning

confidence: 99%

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Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments

et al. 2021

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In the past decades, the energy consumption of nonrenewable fossil fuels has been increasing, which severely threatens human life. Thus, it is very urgent to develop renewable and reliable energy storage devices with features of environmental harmlessness and low cost. High power density, excellent cycle stability, and a fast charge/discharge process make supercapacitors a promising energy device. However, the energy density of supercapacitors is still less than that of ordinary batteries. As is known to all, the electrochemical performance of supercapacitors is largely dependent on electrode materials. In this review, we firstly introduced six typical transition metal oxides (TMOs) for supercapacitor electrodes, including RuO2, Co3O4, MnO2, ZnO, XCo2O4 (X = Mn, Cu, Ni), and AMoO4 (A = Co, Mn, Ni, Zn). Secondly, the problems of these TMOs in practical application are presented and the corresponding feasible solutions are clarified. Then, we summarize the latest developments of the six TMOs for supercapacitor electrodes. Finally, we discuss the developing trend of supercapacitors and give some recommendations for the future of supercapacitors.

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Section: Tmos-based Electrode Materialsmentioning

confidence: 99%

Section: Tmos-based Electrode Materialsmentioning

confidence: 99%

Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments

et al. 2021

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“…12–16 Electroactive materials are capable of rapid reversible redox reactions occurring on the CF surface, which could well enhance the capacitive performance of CF composite electrode. 17–19 Transition metal compounds have been investigated in detail as electroactive supercapacitor electrode materials. 20–22 Tin dioxide (SnO 2 ) is an n-type semiconductor with a wide band gap of 3.6 eV and a low electron affinity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochemical performance of an electroactive nitrogen-doping SnO₂ nanoarray supported on carbon fiber

Xie

2021

Journal of Chemical Research

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An electroactive nitrogen-doping tin dioxide nanorod array (N-SnO2 NRA) is designed as an effective energy-storage electrode material for supercapacitor applications. N-SnO2 supported on a carbon fiber substrate is prepared using SnCl4 as a precursor through hydrolysis, hydrothermal growth, and an NH3-nitriding process. Electroactive N-SnO2 is formed by an N-doping reaction between Sn(OH)4 and NH3, revealing a high nitrogen-doping level of 12.5% in N-SnO2. N-SnO2/carbon fiber reveals a lower ohmic resistance and charge transfer resistance than SnO2/carbon fiber, which is consistent with its higher current response and lower voltage drop in electrochemical measurements. N-SnO2 NRA has an independent nanoarray structure and a small side length of a quadrangular nanorod, contributing to a more accessible interspace, reactive sites, and feasible electrolyte ion diffusion. The N-SnO2/carbon fiber NRA electrode shows higher specific capacitance (105.4 F g−1 at 0.5 A g−1) and rate capacitance retention (45.0% from 0.5 to 5 A g−1) than a SnO2/carbon fiber NRA electrode (58.6 F g−1, 38.4%). Significantly, the cycling capacitance retention after 2000 cycles increases from 78.1% of SnO2/carbon fiber to 98.8% of N-SnO2/carbon fiber, presenting a superior electrochemical cycling stability. The N-SnO2 supercapacitor maintains stable power working at an output voltage of 1.6 V. The specific capacitance decreases from 75.2 to 55.1 F g−1 when the current density increases from 1 to 10 A g−1. The corresponding energy density decreases from 24.23 to 9.81 Wh kg−1, presenting a reasonable rate capability. So, the prepared N-SnO2 nanorod array demonstrates superior capacitance performance for energy-storage applications.

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“…3 Moreover, the faradaic capacitance is much higher than the electrical double layer capacitance of carbon materials. [9][10][11][12][13][14] In recent years, the surface modication of carbon materials has been a research hotspot. [15][16][17] Notably, N/S co-doping has been shown to be helpful in adjusting the electronic properties of carbon materials, such as creating charge sites, polarizing electron pairs, as well as enhancing the electrochemical properties.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical performance of activated carbon fiber with hydrogen bond-induced high sulfur/nitrogen doping

Ruan

Xie

2020

RSC Adv.

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Electrochemical performance of RuO₂-TiO₂nanotube hybrid electrode material

Cited by 33 publications

References 45 publications

Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments

Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments

Synthesis and electrochemical performance of an electroactive nitrogen-doping SnO₂ nanoarray supported on carbon fiber

Electrochemical performance of activated carbon fiber with hydrogen bond-induced high sulfur/nitrogen doping

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Electrochemical performance of RuO2-TiO2nanotube hybrid electrode material

Cited by 33 publications

References 45 publications

Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments

Transition Metal Oxide Electrode Materials for Supercapacitors: A Review of Recent Developments

Synthesis and electrochemical performance of an electroactive nitrogen-doping SnO2 nanoarray supported on carbon fiber

Electrochemical performance of activated carbon fiber with hydrogen bond-induced high sulfur/nitrogen doping

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Product

Resources

About

Electrochemical performance of RuO₂-TiO₂nanotube hybrid electrode material

Synthesis and electrochemical performance of an electroactive nitrogen-doping SnO₂ nanoarray supported on carbon fiber