Hydrogen diffusion behavior in α-solid solution phase of LmNi3.55Co0.75Mn0.4Al0.3 metal hydride electrode—Effect of temperature

Potkonjak, Nebojša I.; Blagojević, Stevan; Sužnjević, Desanka Ž.

doi:10.1016/j.jallcom.2009.05.031

Cited by 9 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The slope line of Ln D H versus 1/ T in Figure corresponds to the value of E a (117.46 kJ mol −1 ). This value is higher than those reported in literature for the conventional hydrogen storage alloys …”

Section: Resultscontrasting

confidence: 69%

Effect of temperature on behavior of perovskite-type oxide LaGaO₃ used as a novel anode material for Ni-MH secondary batteries

et al. 2018

View full text Add to dashboard Cite

Summary To obtain a novel negative electrode for nickel‐metal hydride rechargeable batteries, perovskite‐type oxide LaGaO3 was synthesized by the sol‐gel method. The electrochemical properties of the oxide were systematically investigated at different temperatures by using galvanostatic, chronoamperometric, and potentiodynamic polarization methods. We have selected 298, 313, and 328 K as room, intermediate, and high temperatures, respectively. The galvanostatic results showed that the discharge capacity of the oxide LaGaO3 increased with the temperature elevating during the first 3 cycles. This oxide has the highest discharge capacity of about 220 mAh g−1at high temperature. For room and intermediate temperatures, we observed that the discharge capacity maintains a constant about of 5 and 13 mAh g−1 for 298 and 313 K, respectively, when the number of cycles is increased. The electrochemical kinetic analysis indicates that the exchange current density and the hydrogen diffusion coefficient of the oxide LaGaO3 increase with the rise in temperature. The apparent activation energy (Ea) for hydrogen diffusion process and the activation energy (ΔrH*) for charge‐transfer reaction of the investigated oxide electrode LaGaO3 are estimated. The calculated values of the Ea and ΔrH* are 117.46 and 105 kJ mol−1, respectively. The above experimental results indicated that the kinetic properties of the working electrode have been significantly improved by the elevating of the temperature. The best electrochemical performance (faster activation and highest maximum capacity) of the oxide electrode is obtained at high temperature (328 K).

show abstract

Section: Resultscontrasting

confidence: 69%

Effect of temperature on behavior of perovskite-type oxide LaGaO₃ used as a novel anode material for Ni-MH secondary batteries

et al. 2018

View full text Add to dashboard Cite

show abstract

Electrochemical properties of LaY2Ni9 hydrogen storage alloy, used as an anode in nickel-metal hydride batteries

Belgacem

Khaldi

Boussami

et al. 2014

J Solid State Electrochem

View full text Add to dashboard Cite

Risks of electrochemical data misinterpretation for reversible hydrogen storage materials

Tsirlina

2024

Journal of Energy Storage

View full text Add to dashboard Cite

Hydrogen diffusion behavior in α-solid solution phase of LmNi3.55Co0.75Mn0.4Al0.3 metal hydride electrode—Effect of temperature

Cited by 9 publications

References 31 publications

Effect of temperature on behavior of perovskite-type oxide LaGaO₃ used as a novel anode material for Ni-MH secondary batteries

Effect of temperature on behavior of perovskite-type oxide LaGaO₃ used as a novel anode material for Ni-MH secondary batteries

Electrochemical properties of LaY2Ni9 hydrogen storage alloy, used as an anode in nickel-metal hydride batteries

Risks of electrochemical data misinterpretation for reversible hydrogen storage materials

Contact Info

Product

Resources

About

Hydrogen diffusion behavior in α-solid solution phase of LmNi3.55Co0.75Mn0.4Al0.3 metal hydride electrode—Effect of temperature

Cited by 9 publications

References 31 publications

Effect of temperature on behavior of perovskite-type oxide LaGaO3 used as a novel anode material for Ni-MH secondary batteries

Effect of temperature on behavior of perovskite-type oxide LaGaO3 used as a novel anode material for Ni-MH secondary batteries

Electrochemical properties of LaY2Ni9 hydrogen storage alloy, used as an anode in nickel-metal hydride batteries

Risks of electrochemical data misinterpretation for reversible hydrogen storage materials

Contact Info

Product

Resources

About

Effect of temperature on behavior of perovskite-type oxide LaGaO₃ used as a novel anode material for Ni-MH secondary batteries

Effect of temperature on behavior of perovskite-type oxide LaGaO₃ used as a novel anode material for Ni-MH secondary batteries