One-step solvothermal synthesis of different morphologies CuS nanosheets compared as supercapacitor electrode materials

Huang, Ke‐Jing; Zhang, Jizong; Fan, Yun

doi:10.1016/j.jallcom.2014.11.137

Cited by 178 publications

(67 citation statements)

References 27 publications

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“…Copper sulfide (CuS), an important transition metal sulfide, is an inexpensive and abundant material with widespread applications . It has drawn worldwide attention to Li‐ion batteries, chemical sensors, catalyst, solar cells, and so on . There have been some reports that CuS was used as an electrode material for Li‐ion batteries and supercapacitors because of its metal‐like electronic conductivity and high theoretical capacity .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Zhou

Jiao

et al. 2018

J of Applied Polymer Sci

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Fiber-shaped supercapacitors have drawn much attention for their great potential application in future portable and wearable electronics because of their outstanding flexibility, tiny volume, and good deformability. In this work, commercial poly(ethylene terephthalate) (PET) thread was successfully converted into an electrically conductive and electrochemically active thread by introducing copper sulfide (CuS) and polyaniline (PANI) via simple chemical bath deposition and electrochemical deposition. The obtained PANI/CuS/PET electrode combined all the advantages of PET, CuS, and PANI, showing an excellent physical and electrochemical performance. The fiber-shaped supercapacitor exhibits a high specific capacitance of 29 mF cm −2 (116 mF cm −2 for a single electrode) and good cycling stability with 93.1% retention after 1000 cycles. With the simple preparation method and low-cost raw materials, this strategy provides a reference for the fabrication of portable/wearable energy storage devices.

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Section: Introductionmentioning

confidence: 99%

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Zhou

Jiao

et al. 2018

J of Applied Polymer Sci

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“…Consequently, CVs profile changes by increasing the scan rate due to switching potential. These findings suggest that the redox mechanism is operative for the devised electrode and generate the resultant capacitance ,. The scan rate affects the diffusion of electrolyte ions as displayed by Csp values, Table .…”

Section: Resultsmentioning

confidence: 88%

“…To reveal the potential applications of Ce 2 Zr 2 O 7 , PbS and Ce 2 Zr 2 O 7 /PbS nanocomposite in SCs, we conducted the electrochemical analysis. The electrochemical performance of electrode consisting of nanostructured materials is mainly dependent on the structure and morphology because it offers lager surface and mesoporous structure, which enables better diffusion of charges into the material . Figure a, b, c and d show the typical cyclic voltammetry (CV) curves of spherical Ce 2 Zr 2 O 7 , nanoflower PbS and Ce 2 Zr 2 O 7 /PbS nanocomposite, supported on Ni‐foams (vs Ag/AgCl) as a function of scan rates ranging from 10 to 100 mV/s.…”

Section: Resultsmentioning

confidence: 99%

Mesoporous Ce₂Zr₂O₇/PbS Nanocomposite with an Excellent Supercapacitor Electrode Performance and Cyclic Stability

et al. 2019

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It remains a challenge to fabricate a suitable electrode with high specific capacitance (Csp) and excellent cyclic stability that can enhance the electrochemical performance of the supercapacitor. In the present work, Ce2Zr2O7/PbS nanocomposite has been synthesized and its electrochemical properties has been evaluated for supercapacitor electrode application. The high BET surface area (46 m2/g) and small pore size (11.15 nm) enable better intercalation of electrolyte and confer better capacitive performance on the surface of the nanocomposite electrode. The nanocomposite electrode exhibits an excellent pseudocapacitive performance in 0.1 M KOH electrolyte having specific capacitance of 219 F/g at a current density of 1 A/g. Furthermore, it presents an excellent cycling stability and retains ∼100% Csp after 1000 cyclic voltammetry (CV) cycles. The better electrochemical performance and 100% retention of Csp up to 1000 cycles is attributed to the unique microstructure of nanocomposite i. e., due to the combination of the conductive nature of sulfide and stability of the oxide nanomaterials. These results suggest that Ce2Zr2O7/PbS nanocomposite can be an excellent candidate to be used as an electrode material in supercapacitor devices.

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“…Among potential electrode materials for pseudocapacitors, transition metal sulfides, including CuS [5][6][7][8][9], Cu 2 S [10], SnS 2 [3,[11][12][13] and SnS [14] have extensively been investigated owing to their earth abundance, low cost, environmental friendliness, and high theoretical capacitance. On the contrary, CTSs have particularly been applied in conversion and storage devices [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Stable Copper Tin Sulfide Nanoflower Modified Carbon Quantum Dots for Improved Supercapacitors

Huang

Shang

et al. 2019

Journal of Chemistry

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Copper tin sulfides (CTSs) have widely been investigated as electrode materials for supercapacitors owing to their high theoretical pseudocapacitances. However, the poor intrinsic conductivity and volume change during redox reactions hindered their electrochemical performances and broad applications. In this study, carbon quantum dots (CQDs) were employed to modify CTSs. e structures and morphologies of obtained materials were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). XRD revealed CTSs were composed of Cu 2 SnS 3 and Cu 4 SnS 4 , and TEM suggested the decoration of CQDs on the surface of CTSs. With the decoration of CQDs, CTSs@CQDs showed a remarkable specific capacitance of 856 F·g −1 at 2 mV·s −1 and a high rate capability of 474 F·g −1 at 50 mV·s −1 , which were superior to those of CTSs (851 F·g −1 at 2 mV·s −1 and 192 F·g −1 at 50 mV·s −1 , respectively). is was mainly ascribed to incorporation of carbon quantum dots, which improved the electrical conductivity and alleviated volume change of CTSs during charge/ discharge processes.

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One-step solvothermal synthesis of different morphologies CuS nanosheets compared as supercapacitor electrode materials

Cited by 178 publications

References 27 publications

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Mesoporous Ce₂Zr₂O₇/PbS Nanocomposite with an Excellent Supercapacitor Electrode Performance and Cyclic Stability

Stable Copper Tin Sulfide Nanoflower Modified Carbon Quantum Dots for Improved Supercapacitors

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One-step solvothermal synthesis of different morphologies CuS nanosheets compared as supercapacitor electrode materials

Cited by 178 publications

References 27 publications

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Fabrication of polyaniline/copper sulfide/poly(ethylene terephthalate) thread electrode for flexible fiber‐shaped supercapacitors

Mesoporous Ce2Zr2O7/PbS Nanocomposite with an Excellent Supercapacitor Electrode Performance and Cyclic Stability

Stable Copper Tin Sulfide Nanoflower Modified Carbon Quantum Dots for Improved Supercapacitors

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Product

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Mesoporous Ce₂Zr₂O₇/PbS Nanocomposite with an Excellent Supercapacitor Electrode Performance and Cyclic Stability