Anion-intercalated supercapacitor electrode based on perovskite-type SrB0.875Nb0.125O3 (B = Mn, Co)

Lei, Na; Pian, Pian; Yu, Bo; Li, Shuhong; Dai, Jianming; Jiang, Guohua

doi:10.1016/j.cej.2020.127790

Cited by 29 publications

(24 citation statements)

References 53 publications

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“…Furthermore, the highest capacitance of CPCC@CuO@Mn(OH) 2 can reach 8140 mF cm –2 (mean: 1879.9 F g –1 ) under 0.5 mA cm –2 (amount to 115.5 mA g –1 ). The maximum capacitance, exhibited in Table S1, is overwhelming high in comparison to the foregone research maximum value of Mn(OH) 2 specimens, even most Mn-based materials, ,− proving that the CPCC@CuO@Mn(OH) 2 material has excellent electrochemical performance.…”

Section: Resultsmentioning

confidence: 97%

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

Gong

Shi

et al. 2021

ACS Sustainable Chem. Eng.

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Flexible asymmetric supercapacitor (FASC) systems are expected to exhibit not only excellent energy storage properties and safety but also satisfactory flexibility and robust integration. However, tremendous issues such as low capacitance, narrow voltage window, and poor mechanical properties still exist. In this paper, a novel kind of 3D lamellar Mn(OH) 2 nanosheets on Cu-plated carbon cloth with a core-shell integrated framework (CPCC@CuO@Mn(OH) 2 ) is fabricated to obtain the flexible material in the FASC. In this unique CPCC@CuO@Mn(OH) 2 electrode material, the high theoretical specific capacity of CuO and Mn(OH) 2 brings superior energy storage properties. Meanwhile, as the shell part, the deposited Mn(OH) 2 layer and coated CuO layer work as both capacity contributors and substrate protectors, simultaneously maintaining the high capacitance and satisfactory flexibility of the electrodes. Therefore, the capacitance successfully achieves around 8140 mF cm −2 under 0.5 mA cm −2 . Significantly, the assembled FASC (named as CPCC@CuO@Mn(OH) 2 //CC@AC) achieves a working voltage of up to 2.4 V. In the case of a high-power density close to 34.31 mW cm −3 , its energy density reaches around 6.29 mW h cm −3 . Moreover, the capacity holds 88.9% even after 10,000 cycles, showing its great application potential in the field of wearable electronics.

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Section: Resultsmentioning

confidence: 97%

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

Gong

Shi

et al. 2021

ACS Sustainable Chem. Eng.

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“…In addition, the transition of the bond length and angle of the B–O bond, which was caused by heteroatom doping, could greatly affect the properties of perovskite oxides. As reported, SrCo 0.875 Nb 0.125 O 3 (SCN) had a shorter B–O bond length and larger B–O bond angle than SrCoO 3 (SC), confirming the high B–O covalency for SCN with abundant oxygen vacancies . Therefore, the specific capacitance of SCN was 894 mF cm –2 with no problem of leaching, which was 4.7 times higher than that of SrMn 0.875 Nb 0.125 O 3−δ (SMN).…”

Section: Advances Of a Single Perovskite Oxide For Pseudocapacitorsmentioning

confidence: 90%

“…111 SrCoO 3 (SC), confirming the high B−O covalency for SCN with abundant oxygen vacancies. 112 Therefore, the specific capacitance of SCN was 894 mF cm −2 with no problem of leaching, which was 4.7 times higher than that of SrMn 0.875 Nb 0.125 O 3−δ (SMN). Furthermore, when Mo-doped SrCoO 3 was used as the electrode of SCs, the capacitance was mainly restricted by the diffusion rate of oxygen ions at a high scanning speed.…”

Section: B Elementmentioning

confidence: 90%

Advances and Perspectives for the Application of Perovskite Oxides in Supercapacitors

Meng

Lü

et al. 2021

Energy Fuels

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Perovskite oxides, with the general formula of ABO 3 , are considered as one of the promising candidates of electroactive materials for supercapacitors (SCs) as a result of their stable structure, rich oxygen vacancies, and highly reversible redox capability. According to the oxygen ion intercalation mechanism, the concentration of oxygen vacancy in perovskite oxides is proportional to the capacitance of SCs. Meanwhile, various strategies, e.g., doping, compositing, and specific synthesis processes, are proposed to increase the capacitance for perovskite oxide electrodes. Herein, this review mainly emphasizes the relationship between the energy storage mechanism and the key role of oxygen vacancies in perovskite. In terms of structural design, preparation methods, and various approaches to improve the electrochemical performance of the latest reported perovskite-type oxides for SCs, we give a detailed discussion and summarize the characteristics of them, which is expected to have impact on the fields of perovskite oxide science. Furthermore, we pointed out the challenges and perspectives of perovskite-oxide-based SCs.

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“…Under the three-electrode system with 1 M Na 2 SO 4 neutral electrolyte solution, the C s of SCN can reach 894 mF • cm À 2 at 1 mA • cm À 2 , which is about 1.5 times of La 2 Y x Zr 2-x O 3 with the same test conditions. [15] Moreover, Ma, Pian Pian's group has synthesized a series of Ti-substituted perovskite SrCo 1-x Ti x O 3-δ (x = 0, 0.05, 0.10, 0.15, 0.20) by solid-state reaction method for anion-intercalated supercapacitor electrode materials, and a highest C s of 625.0 F • g À 1 at 1 A • g À 1 is achieved in SrCo 0.9 Ti 0.1 O 3-δ sample. [16] As well, its superior electrochemical performance can be attributed to the stable cubic structure with higher conductivity and large amount of oxygen vacancy which directly contributes to the anion-intercalated energy storage.…”

Section: Introductionmentioning

confidence: 99%

The Preparation and Modification of Strontium Titanate Ceramic Films for High‐Performance Flexible Supercapacitor

Cao

Hui

et al. 2023

ChemElectroChem

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Based on previous research, the perovskite-type SrTiO 3 can be considered as a potential energy storage material because of its good electrical conductivity properties and oxygen-vacancy structure. In this work, Ce-doped SrTiO 3 nanofibers film with excellent flexibility was successfully fabricated by using electrospinning and conventional sintering route at 600 °C. For the series of the SrCe x Ti 1-x O 3 (SCTO-x) films (0 � x � 0.5), although the corresponding nanofibers structure could remain intact, their lattice structure transferred from cubic into tetragonal phase with the increase of Ce doing amount. Moreover, the electrochemical measurement results shown that the working electrode fabricated by SCTO-0.3 sample as active materials exhibited the best electrochemical performance possessing with a maximum specific capacitance value of 2895 mF • cm À 2 at 3 mA • cm À 2 (1809.4F • g À 1 at 1.875 A • g À 1 ).Therefore, a symmetrical flexible device was assembled by two SCTO-0.3 electrodes with 1 M Na 2 SO 4 solution, showing a good energy density of 89.5 Wh • kg À 1 (at power density of 1250 W • kg À 1 ). However, while the super-concentrated electrolyte (1 M Na 2 SO 4 + 66.7 wt % sucrose) was instead of the 1 M Na 2 SO 4 solution in the fabrication of the device, it could display higher energy density (151 Wh • kg À 1 vs. 1600 W • kg À 1 ), good cycling stability and better mechanical flexibility. Herein, this work may provide a new potential electrode material for flexible energy storage device design.

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Anion-intercalated supercapacitor electrode based on perovskite-type SrB0.875Nb0.125O3 (B = Mn, Co)

Cited by 29 publications

References 53 publications

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

Advances and Perspectives for the Application of Perovskite Oxides in Supercapacitors

The Preparation and Modification of Strontium Titanate Ceramic Films for High‐Performance Flexible Supercapacitor

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Anion-intercalated supercapacitor electrode based on perovskite-type SrB0.875Nb0.125O3 (B = Mn, Co)

Cited by 29 publications

References 53 publications

In Situ Growth of 3D Lamellar Mn(OH)2 on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

In Situ Growth of 3D Lamellar Mn(OH)2 on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

Advances and Perspectives for the Application of Perovskite Oxides in Supercapacitors

The Preparation and Modification of Strontium Titanate Ceramic Films for High‐Performance Flexible Supercapacitor

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Product

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In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V

In Situ Growth of 3D Lamellar Mn(OH)₂ on CuO-Coated Carbon Cloth for Flexible Asymmetric Supercapacitors with a High Working Voltage of 2.4 V