Nickel hydroxide electrodeposition from nickel nitrate solutions: mechanistic studies

Abstract

Nickel hydroxide electrodeposition by cathodic reduction of nitrate ions follows an EC (electrochemical reaction followed by an irreversible chemical reaction) mechanism. On subsequent cycling, the electrodeposited nickel hydroxide undergoes a reversible redox reaction. #

Physical and electrochemical characteristics of nanostructured nickel hydroxide powder

“…Microstructure control by changing the synthesis methods has received particular attention for being effective on the improvement of the electrochemical properties. Several methods of nickel hydroxide synthesis have been developed, such as chemical precipitation [13], electrochemical deposition or electrosynthesis [18,19], and the chimie douce technique [20]. Among these synthesis routes, the wet chemical precipitation is a convenient method to mass-produce powder materials, and it has been widely used to produce spherical nickel hydroxide powder which is the active material for pasted nickel electrodes.…”

Pulse Electrosynthesis of MnO2 Electrodes for Supercapacitors

“…Electrodeposition of oxides and hydroxides [1] is an important technique for the surface modification of metals [2] and fabrication of nanostructured films for electrochemical, [3] electronic, [4] catalytic, [5] energy storage, [6] and biomedical [7] applications. Electrodeposition of oxide and hydroxide films is a two step process, which involves electrosynthesis of nanoparticles and film formation.…”

“…This method allows rigid control of film thickness, microstructure, uniformity, and deposition rate. [10] Various electrochemical strategies [1] have been developed for the electrodeposition of individual oxides [4] and hydroxides, [6] composites [5] and oxide compounds. [9] Electrosynthesis of metal oxides from solutions of metal salts is an important tool in nanotechnology.…”

“…[9] Electrosynthesis of metal oxides from solutions of metal salts is an important tool in nanotechnology. [10] Various electrochemical strategies [1] have been developed for the electrodeposition of individual oxides [4] and hydroxides, [6] composites [5] and oxide compounds. [11] Oxide films can be prepared by cathodic or anodic methods.…”

Synthesis and Morphological Control of Nickel Hydroxide for Lithium−Nickel Composite Oxide Cathode Materials by an Eddy Circulating Precipitation Method

“…[6][7][8][9] Many methods for the synthesis of nickel hydroxide have been reported, such as solid-state reaction, 10 homogeneous precipitation, 11,12 electrochemical method, 13 ion-exchange resin method, 14 and chemical precipitation method, [15][16][17][18] etc. Recently, Subbaiah et al 19 and Konishi et al 20 prepared nickel hydroxide via a complexation-precipitation route and hydrolytic stripping in organic solvent, respectively.…”