Electrochemical performance of Ni–RE (RE = rare earth) as electrode material for hydrogen evolution reaction in alkaline medium

• Published in: International journal of hydrogen energy Vol. 36; no. 1; pp. 135 - 151
• Main Authors: Domínguez-Crespo, M.A., Torres-Huerta, A.M., Brachetti-Sibaja, B., Flores-Vela, A.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 2011; Elsevier
• Subjects: Alternative fuels. Production and utilization; Applied sciences; Electrochemical impedance spectroscopy; Electrode materials; Energy; Exact sciences and technology; Fuels; Hydrogen; Hydrogen evolution; Hydrogen evolution reaction; Intermetallic compounds; Intermetallics; Ni-/RE electrodes; Nickel; Precursors; Rare earth elements; Rare earth metals; Tafel curves; Hydrogen evolution reaction; Ni-/RE electrodes; Intermetallic compounds; Tafel curves; Electrochemical impedance spectroscopy; Particle size; Hydrogen; Metal powder; Cerium; Temperature effect; Electrode material; Cerium oxide; Lanthanum; Current density; Low temperature; Scanning electron microscopy; Annealing; Intermetallic compound; Solid state; impedance spectroscopy; Sintering; Morphology; Nickel; Performance; Catalyst activity; Nickel oxide; Electrochemical

In this work, Ni-RE (RE = rare earth, La, Ce) materials were obtained by the solid state reaction using as Ni source: a) metal acetylacetonates and b) metal powders while rare earth element was added from acetylacetonates. These materials were synthesized for 3 h at different temperatures (800 °C or...