Preparation, electrochemical properties, and adsorption kinetics of Ni<sub>3</sub>S<sub>2</sub>/graphene nanocomposites using alkyldithiocarbonatio complexes of nickel(<scp>ii</scp>) as single-source precursors

Pan, Shugang; Zhu, Junwu; Liu, Xiaoheng

doi:10.1039/c2nj40854f

Cited by 37 publications

(14 citation statements)

References 67 publications

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“…The C]S and C-S vibrational peaks occur at 1032 cm À1 and 627 cm À1 , respectively. 42 The XRD pattern, as shown in Fig. 1(d), matched JCPDS # 50-0851 for the g-Ce 2 S 3 orthorhombic phase.…”

Section: Optical and Structural Evaluationsupporting

confidence: 59%

A glassy carbon electrode modified with γ-Ce₂S₃-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

2017

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Section: Optical and Structural Evaluationsupporting

confidence: 59%

A glassy carbon electrode modified with γ-Ce₂S₃-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

2017

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“…3a shows a survey XPS spectrum of the NRNS-210 sample in the range of 0−1200 eV. 3cshows the Ni 2p XPS spectrum and exhibits two main peaks at 875.4 and 857.6 eV, corresponding to Ni 2p 1/2 and Ni 2p 3/2 of Ni 3 S 2 , respectively [37][38][39]. The C and O elements are observed due to the presence of RGO.…”

mentioning

confidence: 99%

Vertically oriented Ni₃S₂/RGO/Ni₃S₂ nanosheets on Ni foam for superior supercapacitors

et al. 2015

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A unique sandwich structure of Ni 3 S 2 /RGO/Ni 3 S 2 consisting of Ni 3 S 2 nanosheets was designed and constructed on nickel foam (NF) by a one-step hydrothermal process.The lower Ni 3 S 2 layer was converted in-situ from the Ni foam substrate, while the upper Ni 3 S 2 layer with vertical nanosheets was resulted from Ni 2+ ions in the solution.This Ni 3 S 2 /RGO/Ni 3 S 2 /NF nanocomposite was directly utilized as supercapacitor electrode, which possesses a high areal mass loading of 5.2 mg cm -2 , and superior performance: a specific capacitance of up to 16.82 F cm −2 (i.e., 3234.62 F g −1 ) at a current density of 20 mA cm -2 (3.85 A g -1 ) and retention 90% of initial capacitance after 1,000 cycles at the high rate of 100 mA cm -2 (19.23 A g -1 ). crystal increase and thus the thickness increase. For comparison, when the temperature increases to 240°C, the nucleation number increase, and the Ni 3 S 2 nanoflakes primarily grow in longitudinal height rather than in thickness, as shown in shown in Fig.4a-4c. A high magnification SEM image of Fig. 4c is shown in Fig.4e, and an array structure consisting of of highly porous Ni 3 S 2 sheets is vertically packed on the top side of the RGO, which is transformed from the nickel ion in the solution, forming the upper Ni 3 S 2 layer. On the other hand, the RNS-210 composite (Fig. 4f) displays relatively loose and random nanosheets of Ni 3 S 2 that result from the surface nickel source of NF, which can be considered as the same structure of the lower layer of Ni 3 S 2 nanosheets in the NRNS-210 composite.an auxiliary oxidant for Ni. Furthermore, this in-situ redox reaction can be developed to build RGO/metal oxides composite on the active metal substrate Fig. 8 The performance of the NRNS-210 composite films as electrode materials in supercapacitors was evaluated using cyclic voltammetry (CV) and Electrochemical performances of NRNS compositeschronopotentiometry. Fig. 8a shows the CV curves of the NRNS-210 electrode in a 2

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“…Other complex oxides which have high electrochemical activity such as Li 4 Ti 5 O 12 , NiMoO 4 , CdFe 2 O 4 , and CuFe 2 O 4 were also coupled with graphene through solvothermal crystallization route. Similarly metal oxide semiconductors such as Co 3 O 4 , MoO 3 SnO 2 , MnO 2 , Mn 3 O 4 , VO 2 , RuO 2 , Fe 3 O 4 , Cu 2 O, Bi 2 O 3 , Cr 2 O 3 , and WO 3 , V 2 O 5 , metal sulfides such as ZnS, NiS, CuS, CdS, Ni 3 S 2 , MoS 2 , VS 2 ,Ce doped SnS 2 , CuInS 2 , and Co 9 S 8 , metal nanoparticles such as Ni, were successfully integrated into graphene through solvothermal routes. The combination of metal oxide or metal sulfides with graphene resulted in the excellent capacitance activity and long cycling stability of the resultant composites.…”

Section: Graphene‐based Materials From Subcritical Hydro‐/solvothermamentioning

confidence: 99%

“… Hydrothermally synthesized graphene‐based composites were also shown to meet the requirements for energy storage in supercapacitors. To list some of them (specific capacitance, current density, electrolyte are listed in bracket): TiO 2 ‐graphene composite (225 F g –1 at 0.125 A g –1 in 1.0 M Na 2 SO 4 ), Co 3 O 4 ‐graphene composite (415 F g –1 at 3 A g –1 in 6 M KOH), SnO 2 ‐graphene composite (364.3 F g –1 at 1.0 A g –1 in 1.0 M Na 2 SO 4 ), MnO 2‐ graphene composite (380 F g –1 at 0.3 A g –1 in 1.0 M KOH), Mn 3 O 4‐ graphene composite (121 F g –1 at 0.5 A g –1 in 1.0 M Na 2 SO 4 ), RuO 2 ‐graphene composite (497 F g –1 at 0.5 A g –1 , 521.2 F g –1 at 0.5 A g –1 , and 219 F g –1 at 1.0 A g –1 in 1.0 M H 2 SO 4 ), Cu 2 O‐graphene composite (215 F g –1 at 1.4 A g –1 in 6.0 M KOH), ZnS‐graphene composite (191 F g –1 at 0.5 A g –1 in 6.0 M KOH), Ni 3 S 2 ‐graphene composite (281.2 F g –1 at 0.5 A g –1 in 3.0 M KOH), NiCo 2 O 4 ‐graphene composite (698 F g –1 at 0.5 A g –1 in 2.0 M KOH), NiMoO 4 ‐graphene composite (1888 F g –1 at 1.0 A g –1 in 2.0 M KOH), CuFe 2 O 4 ‐graphene (576.6 F g –1 at 1.0 A g –1 in 3.0 M KOH), CoMn(CoMn) 2 O 4 ‐graphene composite (571 F g –1 at 1.0 A g –1 in 1.0 M KOH), NiAl‐LDH‐graphene composites (1329 F g –1 at 3.56 A g –1 in 6.0 M KOH) and (781.5 F g –1 at 0.5 A g –1 in 6.0 M KOH), NiCo‐LDH‐graphene composite (1911 F g –1 at 2.0 A g –1 in 3.0 M KOH), CoAl‐LDH‐graphene composite (581.5 F g –1 at 2.0 A g –1 in 1.0 M KOH), NiAl‐LDH‐CNT‐graphene composite (1869 F g –1 at 1.0 mA cm –2 in 6.0 M KOH), N rich carbon‐graphene composite (300.0 F g –1 at 0.1 A g –1 in 6.0 M KOH) …”

Section: Applications Of Graphene‐based Materials Synthesized From Hymentioning

confidence: 99%

Advances in Subcritical Hydro‐/Solvothermal Processing of Graphene Materials

2017

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Many promising graphene-based materials are kept away from mainstream applications due to problems of scalability and environmental concerns in their processing. Hydro-/solvothermal techniques overwhelmingly satisfy both the aforementioned criteria, and have matured as alternatives to wet-chemical methods with advances made over the past few decades. The insolubility of graphene in many solvents poses considerable difficulties in their processing. In this context hydro-/solvothermal techniques present an ideal opportunity for processing of graphenic materials with their versatility in manipulating the physical and thermodynamic properties of the solvent. The flexibility in hydro-/solvothermal techniques for manipulation of solvent composition, temperature and pressure provides numerous handles to manipulate graphene-based materials during synthesis. This review provides a comprehensive look at the subcritical hydro-/solvothermal synthesis of graphene-based functional materials and their applications. Several key synthetic strategies governing the morphology and properties of the products such as temperature, pressure, and solvent effects are elaborated. Advances in the synthesis, doping, and functionalization of graphene in hydro-/solvothermal media are highlighted together with our perspectives in the field.

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Preparation, electrochemical properties, and adsorption kinetics of Ni₃S₂/graphene nanocomposites using alkyldithiocarbonatio complexes of nickel(ii) as single-source precursors

Cited by 37 publications

References 67 publications

A glassy carbon electrode modified with γ-Ce₂S₃-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

A glassy carbon electrode modified with γ-Ce₂S₃-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

Vertically oriented Ni₃S₂/RGO/Ni₃S₂ nanosheets on Ni foam for superior supercapacitors

Advances in Subcritical Hydro‐/Solvothermal Processing of Graphene Materials

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Preparation, electrochemical properties, and adsorption kinetics of Ni3S2/graphene nanocomposites using alkyldithiocarbonatio complexes of nickel(ii) as single-source precursors

Cited by 37 publications

References 67 publications

A glassy carbon electrode modified with γ-Ce2S3-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

A glassy carbon electrode modified with γ-Ce2S3-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

Vertically oriented Ni3S2/RGO/Ni3S2 nanosheets on Ni foam for superior supercapacitors

Advances in Subcritical Hydro‐/Solvothermal Processing of Graphene Materials

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Preparation, electrochemical properties, and adsorption kinetics of Ni₃S₂/graphene nanocomposites using alkyldithiocarbonatio complexes of nickel(ii) as single-source precursors

A glassy carbon electrode modified with γ-Ce₂S₃-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

A glassy carbon electrode modified with γ-Ce₂S₃-decorated CNT nanocomposites for uric acid sensor development: a real sample analysis

Vertically oriented Ni₃S₂/RGO/Ni₃S₂ nanosheets on Ni foam for superior supercapacitors