Surface modification and electrochemical studies of spherical nickel hydroxide

Wang, Xianyou; Yan, Jie; Yuan, Huatang; Zhou, Zhen; Song, Deying; Zhang, Yunshi; Zhu, Liehuang

doi:10.1016/s0378-7753(97)02690-6

Cited by 62 publications

(33 citation statements)

References 12 publications

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“…EIS during OER revealed a relatively lower charge transfer resistance for the materials containing Co ( Figure 2f). Thus, the higher activity is presumably governed by the higher conductivity induced by the presence of Co. An increased conductivity of Ni-based electrodes due to the introduction of Co moieties is well known [23][24][25][26][27]. Two phenomena could be observed,…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Influence of Ni to Co ratio in mixed Co and Ni phosphides on their electrocatalytic oxygen evolution activity

Barwe

Andronescu

Vasile

et al. 2017

Electrochemistry Communications

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Section: Accepted Manuscriptmentioning

confidence: 99%

Influence of Ni to Co ratio in mixed Co and Ni phosphides on their electrocatalytic oxygen evolution activity

Barwe

Andronescu

Vasile

et al. 2017

Electrochemistry Communications

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“…However, in order to understand the nonlinear electrical characteristic presented in the curves of capacity-temperature, more effort has been concentrated on the electrochemical properties of LVP/C. [25][26][27] are used to further consider the electrochemical performances of the sample at various temperatures. Figure 5 illustrates CV curves of the LVP/C sample at room temperature using a scanning rate of 0.1, 0.2, 0.5, and 1 mV s −1 .…”

Section: Resultsmentioning

confidence: 99%

“…The lithium ion diffusion coefficients (D Li ) at various temperatures were calculated according to the following equation [25][26][27]:…”

Section: Electrochemical Properties Of LI 3 V 2 (Po 4 ) 3 /C Cv and Eismentioning

confidence: 99%

Low-temperature behavior of Li3V2(PO4)3/C as cathode material for lithium ion batteries

Liu

Kang

et al. 2011

J Solid State Electrochem

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The electrochemical performance of Li 3 V 2 (PO 4 ) 3 /C was investigated at various low temperatures in the electrolyte 1.0 mol dm −3 LiPF 6 /ethyl carbonate (EC)+diethyl carbonate (DEC)+dimethyl carbonate (DMC) (volume ratio 1:1:1). The stable specific discharge capacity is 125.4, 122.6, 119.3, 116.6, 111.4, and 105.7 mAh g −1 at 26, 10, 0, −10, −20, and −30°C, respectively, in the voltage range of 2.3-4.5 V at 0.2 C rate. When the temperature decreases from −30 to −40°C, there is a rapid decline in the capacity from 105.7 to 69.5 mAh g −1 , implying that there is a nonlinear relationship between the performance and temperature. With temperature decreasing, R ct (corresponding to charge transfer resistance) increases rapidly, D (the lithium ion diffusion coefficients) decreases sharply, and the performance of electrolyte degenerates obviously, illustrating that the lowtemperature electrochemical performance of Li 3 V 2 (PO 4 ) 3 /C is mainly limited by R ct , D Li , and electrolyte.

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“…In the literature, the authors proposed that the improvement in the stability and charge efficiencies of Ni(OH) 2 is possible by the co-deposition of metal hydroxide or addition of metal oxide into nickel hydroxide [17,18]. The surface modification of nickel hydroxide was also found to be effective to enhance the reversibility of the Ni II (OH) 2 /Ni III OOH redox reaction and electrode performance [19].…”

Section: Introductionmentioning

confidence: 99%

A study on the effect of nanosized tin oxide on the electrochemical performance of nanosized nickel hydroxide in alkali solution

Nulu¹,

Saiprakash²,

Jayalakshmi³

et al. 2013

Journal of Experimental Nanoscience

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The nickel hydroxide nanopowders mixed with SnO 2 nanoparticles as an additive in different proportions were prepared and characterised by X-ray diffraction (XRD), transmission electron microscope (TEM) and electrochemical measurement by cyclic voltammetry. XRD examination suggests that the composite Ni(OH) 2 /SnO 2 has both the phases of -Ni(OH) 2 and -Ni(OH) 2 with SnO 2 nanoparticles. TEM images show the nanostructures of nickel hydroxide, SnO 2 and dispersion of SnO 2 nanoparticles on nickel hydroxide particles in the composite. The electrochemical studies revealed that the composite electrode has better redox reversibility and specific capacitance values compared to the pure Ni(OH) 2 , -Ni(OH) 2 and usual -Ni(OH) 2 electrodes and it can be applied as a promising positive active material for alkaline rechargeable batteries.

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Surface modification and electrochemical studies of spherical nickel hydroxide

Cited by 62 publications

References 12 publications

Influence of Ni to Co ratio in mixed Co and Ni phosphides on their electrocatalytic oxygen evolution activity

Influence of Ni to Co ratio in mixed Co and Ni phosphides on their electrocatalytic oxygen evolution activity

Low-temperature behavior of Li3V2(PO4)3/C as cathode material for lithium ion batteries

A study on the effect of nanosized tin oxide on the electrochemical performance of nanosized nickel hydroxide in alkali solution

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