Novel Mo-doped nickel sulfide thin sheets decorated with Ni–Co layered double hydroxide sheets as an advanced electrode for aqueous asymmetric super-capacitor battery

Shi, Mangmang; Zhao, Mingshu; Jiao, Lidong; Zhou, Su; Li, Min; Song, Xiaoping

doi:10.1016/j.jpowsour.2021.230333

Cited by 73 publications

(43 citation statements)

References 56 publications

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“…The HRTEM image in Figure 2f reveals lattice spacing of 0.260 nm corresponds to the (012) plane of NiCo‐LDH. [ 11 ] And, the lattice fringes of 0.222 and 0.287 nm can be assigned to the (211) plane of NiS and the (110) plane of Ni 3 S 2 , respectively. [ 7,12 ] The selected area electron diffraction (SAED) pattern also clearly confirms their polycrystalline characteristics (Figure S4, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, there is no peak in the curve of NF\Ni 3 S 2 /NiS@NiCo‐LDH in a neutral electrolyte (1 M Na 2 SO 4 solution), indicating OH − plays an important role in the charge storage (Figure S6, Supporting Information). The possible redox reactions could proceed as the following equations: [ 11,18 ]

\begin{array}{*{20}{c}}{{\rm{Ni}}{{\left( {{\rm{OH}}} \right)}_2} + {\rm{O}}{{\rm{H}}^ - } \leftrightarrow {\rm{NiOOH}} + {{\rm{H}}_2}{\rm{O}} + {{\rm{e}}^ - }}\end{array}

\begin{array}{*{20}{c}}{{\rm{Co}}{{\left( {{\rm{OH}}} \right)}_2} + {\rm{O}}{{\rm{H}}^ - } \leftrightarrow {\rm{CoOOH}} + {{\rm{H}}_2}{\rm{O}} + {{\rm{e}}^ - }}\end{array}

\begin{array}{*{20}{c}}{{\rm{N}}{{\rm{i}}_{\rm{x}}}{{\rm{S}}_{\rm{y}}} + {\rm{O}}{{\rm{H}}^ - } \leftrightarrow {\rm{N}}{{\rm{i}}_{\rm{x}}}{{\rm{S}}_{\rm{y}}}{\rm{OH}} + {{\rm{e}}^ - }}\end{array}

…”

Section: Resultsmentioning

confidence: 99%

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Hierarchical Heterostructure Engineering of Layered Double Hydroxides on Nickel Sulfides Heteronanowire Arrays as Efficient Cathode for Alkaline Aqueous Zinc Batteries

Wang

Zhong

Chen

et al. 2022

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Aqueous alkaline rechargeable nickel‐zinc (Ni–Zn) batteries possess great potential for large‐scale energy storage systems because of their high output voltage, cheap cost, and intrinsic safety. However, the practical applicability of Ni–Zn batteries has been limited by traditional Ni‐based cathodes with low capacity and poor cycle stability. Rational design of electrode structure and composition is highly desired but still significantly challenging. Herein, uniform self‐supported hierarchical heterostructure composites interacting NiCo‐layered double hydroxide with 1D nickel sulfides heteronanowire rooted on Ni foam (NF\Ni3S2/NiS@NiCo‐LDH) are successfully developed by a hydrothermal sulfurization‐electrodeposition process. The self‐supported 3D hierarchical heterostructured composites nanoarray provides abundant reactive sites, rapid ion diffusion channels, and fast electron transfer routes, as well as strong structural stability. More significantly, the strong interfacial charge transfer between Ni3S2/NiS heteronanowire and NiCo‐LDH effectively modifies the electronic structure of the composites and thereby improving the reaction kinetics. Consequently, the NF\Ni3S2/NiS@NiCo‐LDH electrode presents a superior capacity of 434.5 mAh g−1 (1.73 mAh cm−2) at 3 mA cm−2. In addition, the fabricated NF\Ni3S2/NiS@NiCo‐LDH//Zn battery can offer a maximal energy density and power density as large as 556.3 Wh kg−1 and 26.3 kW kg−1, respectively, as well as an exceptional cycling performance.

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Section: Resultsmentioning

confidence: 99%

\begin{array}{*{20}{c}}{{\rm{Ni}}{{\left( {{\rm{OH}}} \right)}_2} + {\rm{O}}{{\rm{H}}^ - } \leftrightarrow {\rm{NiOOH}} + {{\rm{H}}_2}{\rm{O}} + {{\rm{e}}^ - }}\end{array}

\begin{array}{*{20}{c}}{{\rm{Co}}{{\left( {{\rm{OH}}} \right)}_2} + {\rm{O}}{{\rm{H}}^ - } \leftrightarrow {\rm{CoOOH}} + {{\rm{H}}_2}{\rm{O}} + {{\rm{e}}^ - }}\end{array}

\begin{array}{*{20}{c}}{{\rm{N}}{{\rm{i}}_{\rm{x}}}{{\rm{S}}_{\rm{y}}} + {\rm{O}}{{\rm{H}}^ - } \leftrightarrow {\rm{N}}{{\rm{i}}_{\rm{x}}}{{\rm{S}}_{\rm{y}}}{\rm{OH}} + {{\rm{e}}^ - }}\end{array}

…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Heterostructure Engineering of Layered Double Hydroxides on Nickel Sulfides Heteronanowire Arrays as Efficient Cathode for Alkaline Aqueous Zinc Batteries

Wang

Zhong

Chen

et al. 2022

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“…In another work [23], also concerning a Ni-Zn supercapacitor battery with a water-based electrolyte, thin sheets of nickel sulfide with the addition of molybdenum with layers of Ni-Co double hydroxide (Mo-NiS 2 @NiCo-LDH) were synthesized. The synthesized material showed a high capacity of 325.6 mAh/g (2604.8 F/g) at 1 A/g.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Investigation of the characteristics of sulfurized electrochromic Ni(OH)2-PVA films deposited on transparent substrates

Kotok

Кovalenko

Nafeev

et al. 2022

EEJET

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Obtaining new types of composite coatings for various purposes is the most important direction in chemistry. The synthesis of composite hydroxide-sulfide compounds can be useful in various areas of applied electrochemistry. Using a simple two-step method, thin films composed of nickel hydroxide sulfide-polyvinyl alcohol were formed. The production of nickel hydroxide sulfide-polyvinyl alcohol composite was carried out by holding the nickel hydroxide-polyvinyl alcohol composite coating formed on the glass electrode with an electrically conductive substrate in a solution of 0.03 M Na2S for 10 minutes. The formation of nickel sulfide on the surface of nickel hydroxide was shown indirectly. It was shown that there were no changes in morphology after the treatment of the electrode in sodium sulfide solution. As a result of the treatment, the electrochemical and electrochromic characteristics changed. There was some deterioration in the average coloration depth from 55 % to 49 % for the electrode containing nickel sulfide. The electrochemical characteristics also deteriorated slightly after the formation of the sulfide film, namely, the specific capacitance, which went to the passage of anodic and cathodic processes. However, the capacitance efficiency increased from 83 % to 87 % for the sulfide-treated film. Despite this, this simple method is considered to be potentially promising for the formation of electrodes for use in other electrochemical devices. In addition, due to the treatment in a sodium sulfide solution, it became possible to roughly determine the size of the nickel hydroxide clusters in the nickel hydroxide-polyvinyl alcohol composite coating. These clusters did not exceed 430 nm in size, which was almost equal to the lower limit of the wavelength of the visible spectrum.

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“…[5][6][7] Nickel and related oxides are considered suitable low-cost catalysts widely used in energy applications such as electrochemical capacitance, photocatalysis, batteries, solar cells, and urea electrooxidation. [8][9][10][11][12][13] Catalyst composed of two metallic, known as a bimetallic, have got much attention due to the synergetic effect between the two metals compared with monometallic counterparts. This leads to enhancing electrical conductivity and structure stability catalytic activity, sensitivity, and durability.…”

Section: Introductionmentioning

confidence: 99%

NiO‐MnOx/Polyaniline/Graphite Electrodes for Urea Electrocatalysis: Synergetic Effect between Polymorphs of MnOx and NiO.

et al. 2022

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In this work, we are enhancing the catalytic activity of the urea electrooxidation (UEO) process by using the composite of polyaniline (Pani), nickel oxide (NiO), and polymorphs of manganese oxide (MnOx) based on a graphite electrode. The hydro‐gel method was used to prepare catalyst suspension with different ratios from NiO and MnOx. The chemical structures and surface morphology were characterized by employing the IR, XRD, and SEM/EDEX techniques. The catalytic activity of four modified electrocatalysts G/Pani/NiMn1, G/Pani/NiMn2, G/Pani/NiMn3, G/Pani/NiMn4 was investigated using cyclic voltammetry, chronoamperometry, and electrochemical impedance. The kinetic parameters such as diffusion coefficient, Tafel slope, charge transfer coefficient, and surface coverage were calculated to choose the best electrocatalysts toward UEO in alkaline solution. The anodic current of new electrodes achieved about 16 mA.cm−2 at potential of 550 mV (vs. Ag/AgCl). Density functional theory studies (DFT) have been carried out to assess the adsorption energy between polyaniline (Pani) and the metal oxides.

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Novel Mo-doped nickel sulfide thin sheets decorated with Ni–Co layered double hydroxide sheets as an advanced electrode for aqueous asymmetric super-capacitor battery

Cited by 73 publications

References 56 publications

Hierarchical Heterostructure Engineering of Layered Double Hydroxides on Nickel Sulfides Heteronanowire Arrays as Efficient Cathode for Alkaline Aqueous Zinc Batteries

Hierarchical Heterostructure Engineering of Layered Double Hydroxides on Nickel Sulfides Heteronanowire Arrays as Efficient Cathode for Alkaline Aqueous Zinc Batteries

Investigation of the characteristics of sulfurized electrochromic Ni(OH)2-PVA films deposited on transparent substrates

NiO‐MnOx/Polyaniline/Graphite Electrodes for Urea Electrocatalysis: Synergetic Effect between Polymorphs of MnOx and NiO.

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