Simple synthesis of a CoMoS<sub>4</sub>based nanostructure and its application for high-performance supercapacitors

Dai, Yu‐Tzu; Kong, Ling‐Bin; Yan, Kang; Shi, Ming; Zhang, Tong; Luo, Yan‐Ling; Kang, Long

doi:10.1039/c5ra26157k

Cited by 73 publications

(44 citation statements)

References 73 publications

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“…As for the Mo 3d spectrum (Figure d), the binding energy are 228.6 eV and 232.1 eV, which corresponds to 3d 5/2 and 3d 3/2 , indicating that molybdenum exists as a compound of Co−Mo−S and in accordance with the analysis of XRD pattern . Additional peaks are observed at 225.5 eV and 226.6 eV nearby S 2 s, corresponding to the two chemical states of S species bonding with Co and Mo ions . The high‐resolution S 2p spectrum (Figure e) shows four prominent peaks.…”

Section: Resultssupporting

confidence: 60%

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Formation of a Flower‐Like Co−Mo−S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties

et al. 2018

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Transition metal sulfides have attracted considerable attention due to their excellent electrochemical performance for supercapacitors. Herein, we prepared a Co3S4/CoMo2S4 (Co−Mo−S) composite on reduced graphene oxide/Ni foam (RGO/NF) with unique flower‐like morphology through a carefully time‐controlled sulfurization process. It was found that the vulcanization time has a great influence on the morphology and electrochemical properties of the composites. After 3 hours of vulcanization, the as‐prepared Co3S4/CoMo2S4@RGO/NF electrode exhibited a superior specific capacitance of 2530.4 F g−1 at a current density of 1 A g−1, as well as excellent cycling stability with 78.8 % retention of the initial capacitance even after 6,000 cycles at a current density of 10 A g−1. An asymmetric device was assembled employing the Co3S4/CoMo2S4@RGO/NF composite as a positive electrode and activated carbon (AC) as a negative electrode. The device delivered a maximum energy density of 59.0 Wh kg−1 at a power density of 640 W kg−1 and a high cycling performance (90.7 % capacitance retention after 6,000 cycles). These results demonstrate the promising potential of Co−Mo−S@RGO/NF as binder‐free, high‐performance electrode in renewable energy storage systems.

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Section: Resultssupporting

confidence: 60%

“…Hence, it would be desirable to prepare the composite combining the characteristic of RGO and Co−Mo−S with further improvements in electrochemical performance. For instance, Dai's group synthesized CoMoS 4 via a facile chemical co‐precipitation method, which exhibited 415 F g −1 at a current density of 0.5 A g −1 . Yang et al.…”

Section: Introductionmentioning

confidence: 99%

Formation of a Flower‐Like Co−Mo−S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties

et al. 2018

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“…In contrast, low-temperature and energy-saving solution-based methods have been demonstrated to be very powerful to obtain desired MMSs. In this regard, many solution-based synthesis methods including coprecipitation, [29,48] hot injection, [49][50][51][52][53][54] refluxing, [55][56][57][58][59] hydro/ solvothermal, [60][61][62][63][64] electrodeposition, [65][66][67][68][69] and self-template methods [27,28,31,32] have been well established to synthesize high-quality MMSs.…”

Section: Brief Overview Of Synthesis Methods For Mmssmentioning

confidence: 99%

“…[29,48] The MMSs prepared by this method often exhibit amorphous phase and it is hard to obtain MMSs with well-controlled shape and size. The hot-injection method is very versatile to prepare high-quality nanostructures with narrow size distribution and good crystallinity.…”

Section: Wwwadvenergymatdementioning

confidence: 99%

“…[28,30,75,79,82,83,87] When synthesizing Mo-or W-containing MMSs using these solutionbased methods, (NH 4 ) 2 Mo(W)S 4 is generally used as both Mo(W) and S sources. [29,48,63,89] The gas sulfidation method is another facile approach to synthesize MMSs. This method involves the synthesis of various template precursors and subsequent sulfidation with H 2 S or S vapor.…”

Section: Wwwadvenergymatdementioning

confidence: 99%

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Mixed Metal Sulfides for Electrochemical Energy Storage and Conversion

Lou

2017

Advanced Energy Materials

707

319

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Mixed metal sulfides (MMSs) have attracted increased attention as promising electrode materials for electrochemical energy storage and conversion systems including lithium‐ion batteries (LIBs), sodium‐ion batteries (SIBs), hybrid supercapacitors (HSCs), metal–air batteries (MABs), and water splitting. Compared with monometal sulfides, MMSs exhibit greatly enhanced electrochemical performance, which is largely originated from their higher electronic conductivity and richer redox reactions. In this review, recent progresses in the rational design and synthesis of diverse MMS‐based micro/nanostructures with controlled morphologies, sizes, and compositions for LIBs, SIBs, HSCs, MABs, and water splitting are summarized. In particular, nanostructuring, synthesis of nanocomposites with carbonaceous materials and fabrication of 3D MMS‐based electrodes are demonstrated to be three effective approaches for improving the electrochemical performance of MMS‐based electrode materials. Furthermore, some potential challenges as well as prospects are discussed to further advance the development of MMS‐based electrode materials for next‐generation electrochemical energy storage and conversion systems.

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Graphene‐Based Nanocomposites for Energy Storage

Meduri

Agubra

et al. 2016

Advanced Energy Materials

336

176

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Since the first report of using micromechanical cleavage method to produce graphene sheets in 2004, graphene/graphene‐based nanocomposites have attracted wide attention both for fundamental aspects as well as applications in advanced energy storage and conversion systems. In comparison to other materials, graphene‐based nanostructured materials have unique 2D structure, high electronic mobility, exceptional electronic and thermal conductivities, excellent optical transmittance, good mechanical strength, and ultrahigh surface area. Therefore, they are considered as attractive materials for hydrogen (H2) storage and high‐performance electrochemical energy storage devices, such as supercapacitors, rechargeable lithium (Li)‐ion batteries, Li–sulfur batteries, Li–air batteries, sodium (Na)‐ion batteries, Na–air batteries, zinc (Zn)–air batteries, and vanadium redox flow batteries (VRFB), etc., as they can improve the efficiency, capacity, gravimetric energy/power densities, and cycle life of these energy storage devices. In this article, recent progress reported on the synthesis and fabrication of graphene nanocomposite materials for applications in these aforementioned various energy storage systems is reviewed. Importantly, the prospects and future challenges in both scalable manufacturing and more energy storage‐related applications are discussed.

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Simple synthesis of a CoMoS₄based nanostructure and its application for high-performance supercapacitors

Abstract: Synthesis procedure for CoMoS4 nanoparticles.

Cited by 73 publications

References 73 publications

Formation of a Flower‐Like Co−Mo−S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties

Formation of a Flower‐Like Co−Mo−S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties

Mixed Metal Sulfides for Electrochemical Energy Storage and Conversion

Graphene‐Based Nanocomposites for Energy Storage

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Simple synthesis of a CoMoS4based nanostructure and its application for high-performance supercapacitors

Abstract: Synthesis procedure for CoMoS4 nanoparticles.

Cited by 73 publications

References 73 publications

Formation of a Flower‐Like Co−Mo−S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties

Formation of a Flower‐Like Co−Mo−S on Reduced Graphene Oxide Composite on Nickel Foam with Enhanced Electrochemical Capacitive Properties

Mixed Metal Sulfides for Electrochemical Energy Storage and Conversion

Graphene‐Based Nanocomposites for Energy Storage

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Simple synthesis of a CoMoS₄based nanostructure and its application for high-performance supercapacitors