Facile synthesis of ZnS/MnS nanocomposites for supercapacitor applications

Arul, N. Sabari; Cavalcante, L. S.; Han, Jeong In

doi:10.1007/s10008-017-3782-1

Cited by 85 publications

(37 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calculated specific capacitance for individual ZnS was 1296.51, 1334, 1055.18 and 922.50 F g −1 , respectively, at 3, 5, 10 and 15 mA cm −2 . The energy (E d ) and power densities (P d ) were calculated using Equation (3) and (4), respectively

true E_{d} = 0.5 C_{s} {(Δ normalV)}^{2}

true P_{d} = \frac{{normalE}_{normald}}{t}

…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Graphene Oxide Thin Film on Growth and Electrochemical Performance of Hierarchical Zinc Sulfide Nanoweb for Supercapacitor Applications

et al. 2018

View full text Add to dashboard Cite

Surface morphology induced electrical conductivity and specific surface area of a material play a significant role to facilitate electrochemical behavior for supercapacitor application. Therefore, the synthesis step for controlling such parameters becomes very imperative and challenging. Herein, a ZnS nanoweb is deposited directly onto Ni foam with a pre‐deposited thin layer of hydrothermally prepared graphene oxide. The structure and surface morphology of the deposited ZnS is observed using XRD and SEM, respectively. The electrical conductivity of the graphene oxide supported ZnS nanoweb, determined using the four probes method, is 100.15 S cm−1. The specific surface area is 104.42 m2 g−1 as determined by BET measurements. Pseudocapacitive behavior is monitored by cyclic voltammetry, and the excellent specific capacity of 3052 Fg−1 has been found at a scan rate of 2 mV s−1, while it is 2400.30 Fg−1 according the galvanostatic charge‐discharge profile at a current density of 3 mA cm−2. Both values are significantly higher than those measured for bare GO or ZnS layers. The energy and power densities of GO supported ZnS nanoweb are determined in a three electrode setup, are 120 Wh Kg−1 at 3 mA cm−2 and 4407.73 Wkg−1, respectively. In a symmetric two electrode setup, an energy density of 20.29 Wh Kg−1 at 2 mA cm−2 is observed. Hence, both symmetric and asymmetric measurements suggest that GO supported ZnS nanoweb can be applied as a suitable electrode for supercapacitors.

show abstract

true E_{d} = 0.5 C_{s} {(Δ normalV)}^{2}

true P_{d} = \frac{{normalE}_{normald}}{t}

…”

Section: Resultsmentioning

confidence: 99%

“…The energy (E d ) and power densities (P d ) were calculated using Equation (3) and (4), respectively. [37] E d ¼ 0:5 C s ðDVÞ 2 ð3Þ…”

Section: Electrochemical Testing By Three Electrodesmentioning

confidence: 99%

Effect of Graphene Oxide Thin Film on Growth and Electrochemical Performance of Hierarchical Zinc Sulfide Nanoweb for Supercapacitor Applications

et al. 2018

View full text Add to dashboard Cite

show abstract

“…An ideal mass balance between the positive and negative electrodes has been carried out using Eq. (4), [51]…”

Section: Electrochemical Properties Of Solid-state Asymmetric Supercamentioning

confidence: 99%

Solid State Supercapacitor Based on Manganese Oxide@Reduced Graphene Oxide and Polypyrrole Electrodes

2018

Self Cite

View full text Add to dashboard Cite

A Mn 3 O 4 nanocrystals@reduced graphene oxide nanocomposite (MRNC) is prepared using a hydrothermal method. Structural analysis of the synthesized MRNC shows the formation of tetragonal hausmannite phase of Mn 3 O 4 nanocrystals and reduced graphene oxide (rGO) sheet/scrolls. As electrode material for supercapacitors, MRNC reaches a specific capacitance of 611 F g À1 with excellent stability showing a cycling stability of 95 % after 3000 cycles. In addition, polypyrrole (PPy) films with various thicknesses are deposited on flexible carbon fiber via electrodeposition method. A solid state asymmetric supercapacitor (ASC) based on MRNC as positive and PPy as negative electrode was assembled. The assembled ASC delivers a maximum energy density and power density of 32 Wh kg À1 and 833 W kg À1 , respectively, with excellent cycling stability (90 % capacitance retention after 6000 cycles). The result reveals that the MRNC is a promising candidate as superior electrode material for supercapacitors.[a] Dr.

show abstract

“…Supercapacitors have high power density, long cycle life, safety and pollution‐free, wide operating temperature range, and are expected to become the new green power source widely used in this century. According to the energy storage mechanism, supercapacitors can be divided into two types of electric double layer capacitors (EDLC) and Faraday capacitors , . The theoretical basis of EDLC is the electric double layer at the electrode/solution interface .…”

Section: Introductionmentioning

confidence: 99%

“…According to the energy storage mechanism, supercapacitors can be divided into two types of electric double layer capacitors (EDLC) and Faraday capacitors. [7,8] The theoretical basis of EDLC is the electric double layer at the electrode/ solution interface. [9] A Faraday capacitor generates a capacitance by a reversible redox reaction of the active material, which is higher than the specific capacitance of the EDLC.…”

Section: Introductionmentioning

confidence: 99%

One‐Step Hydrothermal Synthesis of Carbon‐Coated Nickel–Copper Sulfide Nanoparticles for High‐Performance Asymmetric Supercapacitors

Zheng

Wang

et al. 2019

Eur J Inorg Chem

View full text Add to dashboard Cite

The C@Ni0.9Cu0.1‐S supercapacitor electrode material with good electrochemical performance was successfully prepared by a simple hydrothermal method. C@Ni0.9Cu0.1‐S obtained by adding glucose has better electrochemical performance than single Ni0.9Cu0.1‐S. In this work, the electrochemical properties of C@Ni0.9Cu0.1‐S electrode materials and asymmetric supercapacitors were studied in detail. This single‐electrode specific capacity in the 6 M KOH solution reaches 1986 F g–1 and the potential window is 0 to 0.49 V. In order to increase the energy density and potential window of the supercapacitor, C@Ni0.9Cu0.1‐S is used as a positive electrode, and AC is used as a negative electrode to assemble asymmetric supercapacitors. The results show that the working voltage of C@Ni0.9Cu0.1‐S∥ AC asymmetric supercapacitor increases to 1.6 V, and the specific capacitance and energy density can reach 184.4 F g–1 and 65.6 Wh kg–1, respectively, and has excellent cycling stability. These excellent electrochemical properties indicate that C@Ni0.9Cu0.1‐S is a promising supercapacitor electrode material.

show abstract

Facile synthesis of ZnS/MnS nanocomposites for supercapacitor applications

Cited by 85 publications

References 43 publications

Effect of Graphene Oxide Thin Film on Growth and Electrochemical Performance of Hierarchical Zinc Sulfide Nanoweb for Supercapacitor Applications

Effect of Graphene Oxide Thin Film on Growth and Electrochemical Performance of Hierarchical Zinc Sulfide Nanoweb for Supercapacitor Applications

Solid State Supercapacitor Based on Manganese Oxide@Reduced Graphene Oxide and Polypyrrole Electrodes

One‐Step Hydrothermal Synthesis of Carbon‐Coated Nickel–Copper Sulfide Nanoparticles for High‐Performance Asymmetric Supercapacitors

Contact Info

Product

Resources

About