Synthesis, characterization and electrocatalytic activity of copper sulfide nanocrystals with different morphologies

Zou, Jing; Jiang, Jizhou; Huang, Lei; Jiang, Haipeng; Huang, Kaixun

doi:10.1016/j.solidstatesciences.2011.03.019

Cited by 28 publications

(13 citation statements)

References 46 publications

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“…[16] Cu x S exists in a variety of crystalline polymorphs and typically acts as p-type semiconductors with a direct energy bandgap of 1.2-2.4 eV owing to the impact of 3d electrons, which has prompted their usage in numerous fields including energy storage, solar radiation absorption, optics, low-temperature superconductor, etc. [17,18] Also, copper sulfides have high electronic conductivity (CuS ≈ 10 −3 S cm −1 ), large theoretical specific charge capacity (CuS ≈ 560 mAh g −1 ), favorable crystal structures, and variable valence states that make them a possible competitor for advanced energy storage applications. Theoretically, it is expected that copper sulfides may provide large specific capacitances as compared to several other trendy pseudocapacitive materials.…”

Section: Introductionmentioning

confidence: 99%

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Mule

Ramulu

2022

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much attention because of their advantages of quick charge/discharge property, superior power density, and long-lasting and eco-friendly feature. [3,4] However, active materials which consist of inherent synergistic properties should be chosen to improve the capacity performance in the SCs. Typically, the active materials (Faradaic redox nature) are constructed with transition metal oxides/hydroxides and chalcogenides. [5] The fabricated electrodes with transition metal oxides/hydroxides show great redox properties and possess high theoretical capacitance values, but these electrodes often reveal low rate performance and poor cycling capability. [6] Hence, it urges engineer to develop innovative composite materials which can offer synergistic characteristics and enriched electrochemical properties. This is more favorable for the development of highperformance SCs. [7,8] Recently, transition metal compositions (Ni, Fe, Cu, Mn, Co, etc.) consisting of sulfides, [9] selenides, [10] and phosphides [11] exhibit excellent electrochemical properties. These materials are promising substitutes to typical hydroxides/oxides owing to the plenty of active channels, robust structural capability, and better electrical conductivity. The energy storage capability of SCs is mainly influenced by the material composition of electrodes. Based on the previously published literature, the SCs with multi-metal chalcogenides show higher charge storage performance compared to single metal chalcogenides. Moreover, it is highly important to mention that the compositional metal chalcogenides allow inherent electrochemical sites and enriched redox properties due to various metal ion species during electrochemical analysis. These features are more favorable to improve electrochemical performance and cycling lifetime. [12][13][14] Especially, the substitute of hydroxide/oxides with sulfur provides flexibility to material structures owing to its low electronegativity property. Consequently, morphological structures of materials alleviate changes occurring in its morphology during the electrochemical analysis. [9,15] Therefore, evolving the combined metal chalcogenide electrodes with advanced characteristics such as good conductivity andThe ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.202105185.

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Section: Introductionmentioning

confidence: 99%

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Mule

Ramulu

2022

Small

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“…For example, the reaction temperature modified the shape, size and optical properties of monodisperse Cu 2 S obtained from a simple one-pot route [ 15 ]. In fact, there exists wide research about the synthesis of copper sulfide nanostructures obtaining different Cu/S ratios [ 9 , 11 , 16 , 20 , 23 – 26 ]. However, the lack of knowledge about the growth evolution and the phase transitions of copper sulfide is the motivation of this work.…”

Section: Introductionmentioning

confidence: 99%

Growth evolution and phase transition from chalcocite to digenite in nanocrystalline copper sulfide: Morphological, optical and electrical properties

Quintana-Ramirez¹,

Arenas‐Arrocena²,

Santos‐Cruz³

et al. 2014

Beilstein J. Nanotechnol.

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SummaryCopper sulfide is a promising p-type inorganic semiconductor for optoelectronic devices such as solar cells, due its small band gap energy and its electrical properties. In this work nanocrystalline copper sulfide (CuxS), with two stoichiometric ratios (x = 2, 1.8) was obtained by one-pot synthesis at 220, 230, 240 and 260 °C in an organic solvent and amorphous CuxS was obtained in aqueous solution. Nanoparticle-like nucleation centers are formed at lower temperatures (220 °C), mixtures of morphologies (nanorods, nanodisks and nanoprisms) are seen at 230 and 240 °C, in which the nanodisks are predominant, while big hexagonal/prismatic crystals are obtained at 260 °C according to TEM results. A mixture of chalcocite and digenite phases was found at 230 and 240 °C, while a clear transition to a pure digenite phase was seen at 260 °C. The evolution of morphology and transition of phases is consistent to the electrical, optical, and morphological properties of the copper sulfide. In fact, digenite Cu1.8S is less resistive (346 Ω/sq) and has a lower energy band gap (1.6 eV) than chalcocite Cu2S (5.72 × 105 Ω/sq, 1.87 eV). Low resistivity was also obtained in CuxS synthesized in aqueous solution, despite its amorphous structure. All CuxS products could be promising for optoelectronic applications.

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“…Among them, electrochemical DNA biosensors are attracting great interest with regards to simplification of the analysis, miniaturization, and microelectronic integration [32]. CuS is a p-type semiconductor and has been extensively applied in lithium rechargeable batteries, solar cells, biology markers, and biosensors because it is inexpensive, nontoxic, easily produced, and readily stored and has high specific capacitances [33]. However, it is not favorable for applications in electrode materials because of its low conductivity.…”

Section: Dna Sensorsmentioning

confidence: 99%

Copper sulfide nanoparticles: from synthesis to biomedical applications

Qiu¹,

Lu²,

Hu³

et al. 2015

Nano Based Drug Delivery

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Synthesis, characterization and electrocatalytic activity of copper sulfide nanocrystals with different morphologies

Cited by 28 publications

References 46 publications

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Growth evolution and phase transition from chalcocite to digenite in nanocrystalline copper sulfide: Morphological, optical and electrical properties

Copper sulfide nanoparticles: from synthesis to biomedical applications

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Synthesis, characterization and electrocatalytic activity of copper sulfide nanocrystals with different morphologies

Cited by 28 publications

References 46 publications

Prussian‐Blue Analogue‐Derived Hollow Structured Co3S4/CuS2/NiS2 Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Prussian‐Blue Analogue‐Derived Hollow Structured Co3S4/CuS2/NiS2 Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Growth evolution and phase transition from chalcocite to digenite in nanocrystalline copper sulfide: Morphological, optical and electrical properties

Copper sulfide nanoparticles: from synthesis to biomedical applications

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Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors

Prussian‐Blue Analogue‐Derived Hollow Structured Co₃S₄/CuS₂/NiS₂ Nanocubes as an Advanced Battery‐Type Electrode Material for High‐Performance Hybrid Supercapacitors