Insights into Electronucleation and Electrodeposition of Nickel from a Non-aqueous Solvent Based on NiCl·6HO Dissolved in Ethylene Glycol.

This work deals with nickel electronucleation and growth processes onto a glassy carbon electrode from NiCl·6HO dissolved in ethylene glycol (EG) solutions with and without 250 mM NaCl as a supporting electrolyte. The physicochemical properties of EG solutions, namely, viscosity and conductivity, were determined for different Ni(II) concentrations. From cyclic voltammetry, it was found that in the absence of the supporting electrolyte, the cathodic efficiency of Ni electrodeposition is about 88%; however, in the presence of the supporting electrolyte, the cathodic efficiency was reduced to 26% due to water (added along the supporting electrolyte) reduction on the growing surfaces of Ni nuclei.

Iron-catalyzed fast hydrothermal liquefaction of Cladophora socialis macroalgae into high quality fuel precursor.

Fast hydrothermal liquefaction of acid-washed Cladophora socialis macroalgae has been studied over homogeneous (KOH, KCO, HPO, HCOOH) and heterogeneous (H-ZSM-5, Raney Ni, Ru/C, Fe metal) catalysts in a batch reactor at 350 °C. Biocrude with maximum yield (36.2%) and energy density (37.