A high-performance asymmetric supercapacitor based on Ni<sub>3</sub>S<sub>2</sub>-coated NiSe arrays as positive electrode

Ye, Beirong; Gong, Chao; Huang, Miaoliang; Ge, Jinhua; Fan, Leqing; Lin, Jianming; Wu, Jihuai

doi:10.1039/c8nj05399e

Cited by 41 publications

(12 citation statements)

References 46 publications

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“…where, I, ∫ 𝑉𝑑𝑡, m, and t are the discharge current (mA), integral area under the discharge curve, masses, and discharging time (s), respectively. The results are comparable or even superior to those of previously reported supercapacitors (Table 2), such as the rGO@Ni3S2//AC (37.19 W h kg −1 at 399.9 W kg −1 ), Ni3S2//AC (36 W h kg −1 at 400 W kg −1 ), and Ni3S2@CoS//AC (23.69 W h kg −1 at 268.95 W kg −1 ) devices [66,[79][80][81][82][83][84][85]. A comparison of these results based on power and energy densities with related reported devices is also summarized.…”

Section: Resultssupporting

confidence: 82%

“…Comparison of the electrochemical energy storage performance observed in this study with those of previously reported asymmetric devices based on Ni 3 S 2 and AC electrodes[66,[79][80][81][82][83][84][85].…”

mentioning

confidence: 64%

“…The energy ( E , W h kg −1 ) and power densities ( P , W kg −1 ) are calculated based on the discharge curve using Equations (4) and (5), respectively [ 78 ]:

where, I ,

, m , and t are the discharge current (mA), integral area under the discharge curve, masses, and discharging time (s), respectively. The results are comparable or even superior to those of previously reported supercapacitors ( Table 2 ), such as the rGO@Ni 3 S 2 //AC (37.19 W h kg −1 at 399.9 W kg −1 ), Ni 3 S 2 //AC (36 W h kg −1 at 400 W kg −1 ), and Ni 3 S 2 @CoS//AC (23.69 W h kg −1 at 268.95 W kg −1 ) devices [ 66 , 79 , 80 , 81 , 82 , 83 , 84 , 85 ]. A comparison of these results based on power and energy densities with related reported devices is also summarized.…”

Section: Resultsmentioning

confidence: 99%

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Facile In Situ Synthesis of Co(OH)2–Ni3S2 Nanowires on Ni Foam for Use in High-Energy-Density Supercapacitors

et al. 2021

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Ni3S2 nanowires were synthesized in situ using a one-pot hydrothermal reaction on Ni foam (NF) for use in supercapacitors as a positive electrode, and various contents (0.3−0.6 mmol) of Co(OH)2 shells were coated onto the surfaces of the Ni3S2 nanowire cores to improve the electrochemical properties. The Ni3S2 nanowires were uniformly formed on the smooth NF surface, and the Co(OH)2 shell was formed on the Ni3S2 nanowire surface. By direct NF participation as a reactant without adding any other Ni source, Ni3S2 was formed more closely to the NF surface, and the Co(OH)2 shell suppressed the loss of active material during charging–discharging, yielding excellent electrochemical properties. The Co(OH)2–Ni3S2/Ni electrode produced using 0.5 mmol Co(OH)2 (Co0.5–Ni3S2/Ni) exhibited a high specific capacitance of 1837 F g−1 (16.07 F cm−2) at a current density of 5 mA cm−2, and maintained a capacitance of 583 F g−1 (16.07 F cm−2) at a much higher current density of 50 mA cm−2. An asymmetric supercapacitor (ASC) with Co(OH)2–Ni3S2 and active carbon displayed a high-power density of 1036 kW kg−1 at an energy density of 43 W h kg−1 with good cycling stability, indicating its suitability for use in energy storage applications. Thus, the newly developed core–shell structure, Co(OH)2–Ni3S2, was shown to be efficient at improving the electrochemical performance.

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Section: Resultssupporting

confidence: 82%

mentioning

confidence: 64%

“…The energy ( E , W h kg −1 ) and power densities ( P , W kg −1 ) are calculated based on the discharge curve using Equations (4) and (5), respectively [ 78 ]:

where, I ,

Section: Resultsmentioning

confidence: 99%

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Facile In Situ Synthesis of Co(OH)2–Ni3S2 Nanowires on Ni Foam for Use in High-Energy-Density Supercapacitors

et al. 2021

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“…The characteristic peaks at 855.6 eV of Ni 2p 3/2 and 873.3 eV of Ni 2p 1/2 in the Ni 2p XPS spectrum demonstrated the two spin-orbit pairs of Ni 2+ (Figure 1g) and the peaks at 54.6 eV of Se 3d 5/2 and 55.4 eV of Se 3d 3/2 in the Se3d spectrum represented the characteristic peaks of Se 2-(Figure 1h), and all of above results indicated the successful formation of NiSe NPs. [41] The poorly resolved X-ray diffraction peaks suggested their weak crystallinity (Figure 1i). [42] Thermo gravimetric analysis (TGA) results showed the amount of PDA coated on NiSe was 7.6% (Figure S5, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Development of Nickel Selenide@polydopamine Nanocomposites for Magnetic Resonance Imaging Guided NIR‐II Photothermal Therapy

Zhen

Zhang

et al. 2021

Adv Healthcare Materials

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The penetration depth of near-infrared laser has greatly restricted the development of most photothermal agents. Recently, photothermal agents in the second near-infrared (NIR-II) window have drawn great attention as they can overcome above barrier. Herein, a novel "all in one" NIR-II responsive nanoplatform (nickel selenide @polydopamine nanocomposites, NiSe@PDA NCs) based on in situ coating the polydopamine (PDA) on the surface of biomineralized nickel selenide nanoparticles (NiSe NPs) for dual-model imaging-guided photothermal therapy is reported. Under the illumination of NIR-II laser (1064 nm), the photothermal conversion efficiency of NiSe@PDA NCs can reach 48.4%, which is higher than that of single NiSe NPs due to the enhanced molar extinction coefficient. In addition, because of the paramagnetic effect of NiSe NPs, the constructed NiSe@PDA NCs can be acted as T 1 contrast agent for magnetic resonance imaging (MRI). Most importantly, the MRI contrast effect is enhanced with the coating of PDA layer due to the loose structure of PDA. Ultimately, both in vitro and in vivo experiments demonstrate that the developed NCs can achieve efficient MRI-guided photothermal therapy for treating malignant tumor. Therefore, the designed NiSe@PDA NCs with excellent features show great potential for clinical MRI-guided cancer therapy.

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“… Ye et al (2019) used a two-step method of splenization and electrochemical deposition to grow a cotton-like nickel sulfide material layer ( Figure 17 ) on nickel selenide nanorods, and obtained higher specific capacitance characteristics than general nickel selenide electrode materials. The SC obtained by assembling this electrode material and activated carbon reaches an energy density of 38.7 Wh/kg at a power density of 192 W/kg and still retains 85.9% of the initial value after 10,000 cycles.…”

Section: Materials Modificationmentioning

confidence: 99%

Nanostructure Nickel-Based Selenides as Cathode Materials for Hybrid Battery-Supercapacitors

Sun

Wang

et al. 2021

Front. Chem.

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Supercapacitors (SCs) have attracted many attentions and already became part of some high-power derived devices such as Tesla’s electric cars because of their higher power density. Among all types of electrical energy storage devices, battery-supercapacitors are the most promising for superior performance characteristics, including short charging time, high power density, safety, easy fabrication procedures, and long operational life. An SC usually consists of two foremost components, namely electrode materials, and electrolyte. The selection of appropriate electrode materials with rational nanostructured designs have resulted in improved electrochemical properties for high performance and has reduced the cost of SCs. In this review, we mainly spotlight the nickel-based selenides nanostructured which applied as high-performance cathode materials for SCs. Different nickel-based selenides materials are highlighted in various categories, such as nickel-cobalt-based bimetallic chalcogenides and nickel-M based selenides. Also, we mentioned material modification for this material type. Finally, the designing strategy and future improvements on nickel-based selenides materials for the application of SCs are also discussed.

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A high-performance asymmetric supercapacitor based on Ni₃S₂-coated NiSe arrays as positive electrode

Abstract: Cotton-like Ni3S2-coated NiSe rod composite electrode was synthesized by cyclic voltammetry electrodeposition with satisfactory electrochemical performance.

Cited by 41 publications

References 46 publications

Facile In Situ Synthesis of Co(OH)2–Ni3S2 Nanowires on Ni Foam for Use in High-Energy-Density Supercapacitors

Facile In Situ Synthesis of Co(OH)2–Ni3S2 Nanowires on Ni Foam for Use in High-Energy-Density Supercapacitors

Development of Nickel Selenide@polydopamine Nanocomposites for Magnetic Resonance Imaging Guided NIR‐II Photothermal Therapy

Nanostructure Nickel-Based Selenides as Cathode Materials for Hybrid Battery-Supercapacitors

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A high-performance asymmetric supercapacitor based on Ni3S2-coated NiSe arrays as positive electrode

Abstract: Cotton-like Ni3S2-coated NiSe rod composite electrode was synthesized by cyclic voltammetry electrodeposition with satisfactory electrochemical performance.

Cited by 41 publications

References 46 publications

Facile In Situ Synthesis of Co(OH)2–Ni3S2 Nanowires on Ni Foam for Use in High-Energy-Density Supercapacitors

Facile In Situ Synthesis of Co(OH)2–Ni3S2 Nanowires on Ni Foam for Use in High-Energy-Density Supercapacitors

Development of Nickel Selenide@polydopamine Nanocomposites for Magnetic Resonance Imaging Guided NIR‐II Photothermal Therapy

Nanostructure Nickel-Based Selenides as Cathode Materials for Hybrid Battery-Supercapacitors

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A high-performance asymmetric supercapacitor based on Ni₃S₂-coated NiSe arrays as positive electrode