Simple fabrication of (CoFe)Se2 @NC electrode materials derived from MOF materials and the electrochemical properties for supercapacitor

Ding, Hao; Zhao, Shanhai; Wang, Xiaojuan; Qian, Cheng; Tian, Zhen; Li, Xiaoqin; Li, Huiyu; Jiang, Feng; Liu, Yongsheng; Hong-ping, Cao; Fang, Zebo; Zhu, Yanyan

doi:10.1016/j.colsurfa.2023.131462

Cited by 21 publications

(3 citation statements)

References 74 publications

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“…Figure f depicts the GCD curves of the device at different current densities, showing a high specific capacity of 80.3 F g –1 at a current density of 1 A g –1 . Figure g shows the relationship between the energy density and power density of the ASC device (25.3 Wh kg –1 at 750 W kg –1 ) and compares it with other reported selenide ASC devices, such as CoSe//AC (17.6 Wh kg –1 at 684 W kg –1 ), CoSe 2 //AC (18.9 Wh kg –1 at 387 W kg –1 and 9.34 Wh kg –1 at 7750 W kg –1 ), CoSe 2 @NiSe 2 //AC (20.1 Wh kg –1 at 798 W kg –1 ), (CoFe)Se 2 @NC//Fe 2 O 3 /RGO (20 Wh kg –1 at 750 W kg –1 and 13.1 Wh kg –1 at 7500 W kg –1 ), Ni 0.85 Se//graphene (17.8 Wh kg –1 at 810 W kg –1 ), NiSe@MoSe 2 //graphene (25.5 Wh kg –1 at 420 W kg –1 ), and so on.…”

Section: Resultsmentioning

confidence: 89%

“…These values are significantly higher than those of similar electrode materials shown in the comparative electrochemical performance chart (Table S2). ,− Figure S6a shows the SEM image of ZnSe–SnSe 2 after cyclic testing, revealing that ZnSe–SnSe 2 , PVDF, and conductive carbon black are uniformly distributed onto the nickel foam. A comparative analysis of the SEM images taken before cycling indicates that the original microcubes experience significant aggregation and pulverization during prolonged charge–discharge cycles.…”

Section: Resultsmentioning

confidence: 99%

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Microcubes of ZnSe–SnSe₂ Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Zhao,

Feng,

Zhou

et al. 2024

ACS Appl. Nano Mater.

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High-capacity SnSe2 cathode materials combine the advantages of conversion and alloying reactions, showing great prospects in supercapacitors. However, they have poor cycling performance and low electronic conductivity. To effectively improve their electrochemical performance, a bimetallic selenide heterostructure was constructed and a three-dimensional graphene (3DG) carbon layer was encapsulated. 3DG increases the specific surface areas of the material, stabilizes the internal structures, and promotes the reaction kinetics. The obvious lattice distortions and mismatches at the ZnSe–SnSe2 heterointerfaces generate a large number of crystal defects and active sites for the adsorption/desorption of OH– ions, which is beneficial for the insertion and extraction of ions during the cycling processes and further enhances the electronic conductivity of the electrode material. Benefiting from these two strategies, 3DG/ZnSe–SnSe2 exhibits a high specific capacity of 1515.2 F g–1 at 1 A g–1 and maintains a capacity retention rate of 90.1% after 3000 cycles at 5 A g–1. Furthermore, the asymmetric supercapacitor 3DG/ZnSe–SnSe2//AC assembled with activated carbon (AC) exhibits excellent electrochemical performance, demonstrating an energy density of 25.3 Wh kg–1 at 750 W kg–1 and a remarkable capacity retention rate of 91.3% after 20,000 cycles at 5 A g–1.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Microcubes of ZnSe–SnSe₂ Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Zhao,

Feng,

Zhou

et al. 2024

ACS Appl. Nano Mater.

Self Cite

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“…With the exhaustion of nonrenewable energy sources worldwide and the growing problem of pollution, active efforts are being made to develop green and sustainable energy storage devices in recent years. − Compared with traditional capacitors and secondary batteries, supercapacitors have the combined advantages of large electric capacity, high power density, and superhigh charge retention capacity, which are widely used in new energy, electronic communication, aerospace, and other fields. − Although much progress has been achieved in the designing and manufacturing of electrode materials, the supercapacitors with higher energy density still attract a lot of attention. , …”

Section: Introductionmentioning

confidence: 99%

Biomass-Assisted Construction of Carbon-Supported Fe–Co–Cu Trimetallic Oxides/Sulfides for Supercapacitors with Excellent Performance

Zheng,

Xiao,

Wang

et al. 2023

ACS Appl. Energy Mater.

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Transition-metal compounds are considered as a promising class of electrode materials due to their unique features, combining with good electrical conductivity, enhanced ion-diffusion rate, abundant active sites for redox reaction, available multiple oxidation states, high electrochemical activity, and low activation energy for electron transfer among metal centers. Compared with monometallic and bimetallic compounds, the construction of trimetallic compounds can further boost the electrochemical performance. Here, a biomass-assisted approach is presented to construct CoFe2O4–Cu5FeS4–CoS2 trimetallic composites loaded on porous carbon via a cross-linking process followed by high-temperature sulfidation. Due to the formation of interconnected ion-diffusion channels, rich redox reaction sites, and synergistic effect among trimetallic composites, the optimized sample exhibits impressive electrochemical performance with a specific capacitance of 3899.7 F g–1 at 0.5 A g–1, which is obviously superior to the corresponding bimetallic composite-based electrodes. Furthermore, the assembled CoFe2O4–Cu5FeS4–CoS2@PC-700//PC-700 asymmetric supercapacitor maintains an excellent cycling stability of 92.23% after 10,000 cycles. The device reveals an energy density of up to 80.5 W h kg–1 at a rate of 0.45 kW kg–1. This work provides an idea for the preparation of pseudocapacitive electrode materials with high-energy storage capacity.

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Transition Metal Selenides for Supercapacitors

Tang,

Liang,

2023

Adv Funct Materials

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The advancements in high‐performance flexible energy storage devices are crucial to realize the integration and multifunctionality of wearable devices. Transition metal selenides (TMSes), possess high theoretical capacity and electrical conductivity, which hold great promise for energy storage applications. This review provides a succinct summary of the progress of TMSes as high‐performance electrode materials for supercapacitor applications. First, the energy storage mechanism of TMSes and the effective strategies for achieving high‐performance TMSes are discussed. Subsequently, the recent process of TMSes‐based supercapacitors and other multifunctional applications is summarized. This paper aims to provide the superiority of TMSes as electrode materials and their recent advances for energy devices, to promote the development of high‐performance TMSes electrode materials in the fields of energy storage.

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Simple fabrication of (CoFe)Se2 @NC electrode materials derived from MOF materials and the electrochemical properties for supercapacitor

Cited by 21 publications

References 74 publications

Microcubes of ZnSe–SnSe₂ Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Microcubes of ZnSe–SnSe₂ Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Biomass-Assisted Construction of Carbon-Supported Fe–Co–Cu Trimetallic Oxides/Sulfides for Supercapacitors with Excellent Performance

Transition Metal Selenides for Supercapacitors

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Simple fabrication of (CoFe)Se2 @NC electrode materials derived from MOF materials and the electrochemical properties for supercapacitor

Cited by 21 publications

References 74 publications

Microcubes of ZnSe–SnSe2 Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Microcubes of ZnSe–SnSe2 Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Biomass-Assisted Construction of Carbon-Supported Fe–Co–Cu Trimetallic Oxides/Sulfides for Supercapacitors with Excellent Performance

Transition Metal Selenides for Supercapacitors

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Product

Resources

About

Microcubes of ZnSe–SnSe₂ Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors

Microcubes of ZnSe–SnSe₂ Encapsulated within Graphene for High-Performance Asymmetric Supercapacitors