Abstract:This research aims at exploiting the electrocatalytic behaviour of nano-crystalline nickel electrodes electrodeposited by different techniques including direct current (DC), pulse current (PC), or pulse reversal current (PRC) for methanol electrooxidation in alkaline solutions. We understand that PC electrodeposition forms pyramidal shaped grains with a preferential Bragg diffraction peak of (111), whereas PRC produced refined spherical grain morphology with a strong (200) diffraction peak. However, DC electro… Show more
“…Ni exhibits redox peaks at 1.47 V RHE (anodic) and 1.26 V RHE (cathodic), which represent the Ni(OH) 2 /Ni(O)OH redox process. 43 For Co, the small redox peaks at 1.35 and 1.46 V RHE , and 1.10 and 1.24 V RHE represent the oxidation of Co(OH) 2 /Co(O)OH and Co(O)OH/CoO 2 redox processes, respectively. 44 The redox peaks are less obvious, which indicates that the Co prepared using this electrodeposition method generates a smaller number of active sites.…”
Deep eutectic solvents provide a new platform for metal electrodeposition as the intermolecular forces of the solvent can be tuned. Here, metal chloride (CoCl2 and/or NiCl2) and L-serine deep eutectic...
“…Ni exhibits redox peaks at 1.47 V RHE (anodic) and 1.26 V RHE (cathodic), which represent the Ni(OH) 2 /Ni(O)OH redox process. 43 For Co, the small redox peaks at 1.35 and 1.46 V RHE , and 1.10 and 1.24 V RHE represent the oxidation of Co(OH) 2 /Co(O)OH and Co(O)OH/CoO 2 redox processes, respectively. 44 The redox peaks are less obvious, which indicates that the Co prepared using this electrodeposition method generates a smaller number of active sites.…”
Deep eutectic solvents provide a new platform for metal electrodeposition as the intermolecular forces of the solvent can be tuned. Here, metal chloride (CoCl2 and/or NiCl2) and L-serine deep eutectic...
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