Facile synthesis of Mo–Ni particles and their effect on the electrochemical kinetic properties of La–Mg–Ni-based alloy electrodes

Li, Yuan; Yang, Tao; Ke, Dandan; Yang, Shuqin; Han, Shumin

doi:10.1016/j.jallcom.2014.06.112

Cited by 17 publications

(4 citation statements)

References 31 publications

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“…When the three metal ions exist together with each other, more energy consumption was reduced in the metal ions reduction process, and the reduction peak is less obvious. When combined with the description of the literature [24][25][26][27], three metal ions are the multi-step reduction process. The emergence of multiple position reduction peaks in polarization experiments and broadening reduction peaks in cyclic voltammetry experiments indicate that the high valence metal ions need higher energy to be reduced in the reduction process.…”

Section: Trimetal Reduction Experimentsmentioning

confidence: 99%

“…At the same time, La(OH) 3 is a double hydroxide, which has the ability of oxidation and reduction. It is shown in the CV curve of the elemental reduction process in the presence of the three elements, when considering the complex ions (Figures 4-6), that the deposition process of the composite element is the composite deposition one, that is, the co-deposition of anomalous co-deposition and induced co-deposition [12,[22][23][24][25][26][27][28][29]. The electro-deposition process of Ni 2+ , Mo 4+ , and La 3+ can be described, as follows.…”

Section: Co-deposition Kinetic Analysismentioning

confidence: 99%

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Electrodeposition Behavior of Polycrystalline Ni–Mo–La Composite in Alkaline Solution

Chen

et al. 2018

Coatings

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Abstract:The polycrystalline Ni-Mo-La composite coating was obtained by electrodeposition through the addition of La 3+ ions into Ni, Mo ions main salt weak alkaline solution. The obtained composite contain 0.92 at.% La. According to the law of ionic activity, the redox reaction of three kinds of metal atoms was studied by polarography and cyclic voltammetry. It was found that the addition of lanthanum ions changed the composite structural, phase, and element, and the OH − ions were deduced during the electrodeposition in alkaline solution. The introduction of lanthanum and molybdenum ions negatively shifted the reduction potential of nickel ions and broadened the peaks significantly in the deposition process, retarding the reduction and deposition rate of Ni ions, which was characterized by a multi-step reduction process of Mo and La metal atoms.

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Section: Trimetal Reduction Experimentsmentioning

confidence: 99%

Section: Co-deposition Kinetic Analysismentioning

confidence: 99%

Electrodeposition Behavior of Polycrystalline Ni–Mo–La Composite in Alkaline Solution

Chen

et al. 2018

Coatings

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“…Re-Mg-Ni-based hydrogen storage alloys have been attracted great attention as a negative electrode material due to their high energy density, long cycle life and high charge/discharge capacity [1][2][3][4][5][6][7][8][9]. For example, the effects of substitution of R(R = Zr or Nd) for La on the structure and electrochemical properties of the La-Mg-Ni hydrogen storage alloys have been investigated by Pan et al [2,3].…”

Section: Introductionmentioning

confidence: 99%

Study on the hydrogen storage and electrochemical properties of Mm0.75Mg0.25Ni3.5Co0.2Al (x= 0.0–0.4) alloys

Lan

Peng

Shuying

et al. 2015

Journal of Alloys and Compounds

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“…[10][11][12] The performances of the alloy electrodes are controlled by both alloy composition and surface condition. 13 At present more reports have been focused on effect of bulk structure on electrochemical properties of the alloys. These reports show us different methods, such as partial elemental substitution, various preparation methods, heating treatment steps, formation of composite materials, to meliorate electrochemical properties.…”

mentioning

confidence: 99%

Effect of Complex Surface Treatment on Morphology and Electrochemical Properties of La–Mg–Ni-Based Alloys

Wang

Yang

et al. 2017

J. Electrochem. Soc.

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La-Mg-Ni-based hydrogen storage alloys show high electrochemical capacity, and thus have been considered as promising negative electrode materials of metal hydride/nickel secondaray batteries. In our endeavor to improving high rate dischargeability of the alloys, first fluorination and subsequent microencapsulation with Co-Mo modificatioin layer was performed on the alloy particle surface. The scanning electrode microscopy and energy despersive spectroscopy results show that the untreated alloy has a smooth surface, while the complex treatment creats a coarse modification layer, consisting mainly of Mo and Co elements. The electro-catalytic activity on the alloy surface was ameliorated owing to the charge centers in the modification layer, bringing a noticleable improvement to the electrochemical properties. The maximum discharge capacity increases by 18 mAh/g, the middle discharge voltage rises by 0.013 V and the high rate dischargeability at 1500 mA/g mouts up by 9.2%.

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Facile synthesis of Mo–Ni particles and their effect on the electrochemical kinetic properties of La–Mg–Ni-based alloy electrodes

Cited by 17 publications

References 31 publications

Electrodeposition Behavior of Polycrystalline Ni–Mo–La Composite in Alkaline Solution

Electrodeposition Behavior of Polycrystalline Ni–Mo–La Composite in Alkaline Solution

Study on the hydrogen storage and electrochemical properties of Mm0.75Mg0.25Ni3.5Co0.2Al (x= 0.0–0.4) alloys

Effect of Complex Surface Treatment on Morphology and Electrochemical Properties of La–Mg–Ni-Based Alloys

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