Synthesis of Ni(OH)2/graphene composite with enhanced electrochemical property by stirring solvothermal method

Zhai, Zhenting; Liu, Qiang; Zhu, Yikai; Cao, Jina; Shi, San-Qiang

doi:10.1016/j.jallcom.2018.10.262

Cited by 21 publications

(12 citation statements)

References 41 publications

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“…During the anodic sweeps, the peak at 1.03 V is due to the oxidation of LiH into LiOH [42]. The anodic peaks located at 1.48 and 2.26 V could be attributed to the decomposition of SEI, as well as the oxidation of metallic Ni 0 to Ni 2+ [43]. In addition, the presence of cathodic peaks at 0.73 V and 1.37 V after the first cycle indicates an irreversible structural or textural transformation, which occurs during the first lithiation [44].…”

Section: Resultsmentioning

confidence: 98%

Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

Fortunato

Cardinale

et al. 2021

J Solid State Electrochem

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Nickel aluminum layered double hydroxide (NiAl LDH) with nitrate in its interlayer is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the performance of the material is investigated in 1 M LiPF6 in EC/DMC vs. Li. The NiAl LDH electrode based on sodium alginate (SA) binder shows a high initial discharge specific capacity of 2586 mAh g−1 at 0.05 A g−1 and good stability in the potential range of 0.01–3.0 V vs. Li+/Li, which is better than what obtained with a polyvinylidene difluoride (PVDF)-based electrode. The NiAl LDH electrode with SA binder shows, after 400 cycles at 0.5 A g−1, a cycling retention of 42.2% with a capacity of 697 mAh g−1 and at a high current density of 1.0 A g−1 shows a retention of 27.6% with a capacity of 388 mAh g−1 over 1400 cycles. In the same conditions, the PVDF-based electrode retains only 15.6% with a capacity of 182 mAh g−1 and 8.5% with a capacity of 121 mAh g−1, respectively. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. Graphical abstract The as-prepared NiAl-NO3−-LDH with the rhombohedral R-3 m space group is investigated as a negative electrode material for lithium-ion batteries (LIBs). The effect of the potential range (i.e., 0.01–3.0 V and 0.4–3.0 V vs. Li+/Li) and of the binder on the material’s performance is investigated in 1 M LiPF6 in EC/DMC vs. Li. Ex situ X-ray photoelectron spectroscopy (XPS) and ex situ X-ray absorption spectroscopy (XAS) reveal a conversion reaction mechanism during Li+ insertion into the NiAl LDH material. X-ray diffraction (XRD) and XPS have been combined with the electrochemical study to understand the effect of different cutoff potentials on the Li-ion storage mechanism. This work highlights the possibility of the direct application of NiAl LDH materials as negative electrodes for LIBs.

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Section: Resultsmentioning

confidence: 98%

Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

Fortunato

Cardinale

et al. 2021

J Solid State Electrochem

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“…But, in these materials, there is a difficulty to control the repeatability and the ratio of elements. The second one is to prepare metal decorated Ni-based materials or design a composite structure (Jia et al, 2017;Sun et al, 2019;Zhai et al, 2019). The third one is to synthesis Ni-based sulfides, phosphides, and selenides materials, such as Ni-S, Ni-P, and Ni-Se, which have also been reported as efficient electrocatalysts for OER (Anantharaj et al, 2016;Dong et al, 2016;Li et al, 2017;Chen et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Monodispersed α-Ni(OH)2 Microspheres Assembled by Ultrathin Nanosheets and Its Performance for Oxygen Evolution Reduction

Pan

Zhang

et al. 2019

Front. Mater.

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Electrocatalytic water splitting is an efficient route to generate renewable energy sources, in which the noble metal materials are usually used as electrocatalysts. But the high price and scarcity of these catalysts impede their large-scale applications. Ni-based materials are considered to be the most suitable catalytic materials to substitute these noble metal materials. In this paper, the monodispersed α-Ni(OH) 2 microspheres assembled by ultrathin nanosheets were synthesized by a facile solvothermal method. This method was surfactant-free and no precipitator was used. The as-obtained products were well-characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM), thermal gravimetric (TG) analysis, and X-ray photoelectron spectroscopy (XPS). The results of N 2 adsorption/desorption isotherm indicate that the BET surface area of the products was 169.94 m 2 g −1 , and the pore-size distribution centered at 3.5 nm. Then, the electrochemical properties were evaluated by linear sweep voltammetry (LSV) in 1 M KOH. At a current density of 10 mA cm 2 , the overpotential for the α-Ni(OH) 2 -MS is 320 mV, and the Tafel slope is 98.7 mV dec −1 , indicating its excellent reaction kinetics for an efficient catalyst toward oxygen evolution reaction (OER).

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“…N 2 -adsorption/desorption measurement was carried out for investigating the surface area and porosity property of the five resulting samples (Figure 6). In all the cases, when P/P 0 is high, the isotherms exhibit hysteresis due to capillary condensation (Zhai et al, 2019). BET specific surface areas of NiAl-LDHs precursor, the alkaline-etched samples in 5, 10, and 15 M KOH solution, and β-Ni(OH) 2 sample prepared by precipitation reaction are measured to be 64, 56, 79, 60, and 37 m 2 /g, respectively, with their pore diameter mostly distributes at 11.6, 24.8, 2.4, 22.6 and 23.6 nm, respectively.…”

Section: Resultsmentioning

confidence: 93%

Fabrication of β-Ni(OH)2 Particles by Alkaline Etching Layered Double Hydroxides Precursor for Supercapacitor

et al. 2022

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We report the facile preparation of β-Ni(OH)2 particles by etching a NiAl-layered double hydroxides (NiAl-LDHs) precursor with KOH solution. The amphoteric Al3+ ions in LDHs crystal were selectively dissolved out by KOH solution and LDHs crystals were proposed to be in situ topologically transformed to form β-Ni(OH)2. Alkaline concentration has a great influence on the structure, morphology, specific surface area, and porous structure of the resulting samples. Compared to LDHs precursor and β-Ni(OH)2 prepared by a precipitation reaction, the sample etched in 10 M KOH solution has enhanced specific capacitance (829 F/g at 1 A/g), high rate capability (capacitance retention 57.3% with current density 8 A/g), and good charge/discharge stability. We suggested that the high accessible specific surface area and appropriate porous structure, which is conducive to full contact between active material and electrolyte, can improve the utilization rate of the active material to increase the rate capacity of the 10 M KOH-etched sample.

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Synthesis of Ni(OH)2/graphene composite with enhanced electrochemical property by stirring solvothermal method

Cited by 21 publications

References 41 publications

Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

Electrochemical study on nickel aluminum layered double hydroxides as high-performance electrode material for lithium-ion batteries based on sodium alginate binder

Facile Synthesis of Monodispersed α-Ni(OH)2 Microspheres Assembled by Ultrathin Nanosheets and Its Performance for Oxygen Evolution Reduction

Fabrication of β-Ni(OH)2 Particles by Alkaline Etching Layered Double Hydroxides Precursor for Supercapacitor

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