Comparative investigation of electrochemically synthesized (α+β) layered nickel hydroxide with mixture of α-Ni(OH)2 and β-Ni(OH)2

Influence of the carbonate ion on characteristics of electrochemically synthesized layered (α+β) nickel hydroxide

“…Thus, the absence of carbonate ions leads to the formation of the bi-phase system composed of β-Ni(OH) 2 and (α+β)-Ni(OH) 2 , which is in agreement with XRD results. Consequently, results of cyclic voltammetry for the samples synthesized with the diaphragm are similar to those of the monophase layered (α+β) structure of nickel hydroxide described in the literature [43]. So, cyclic voltammetry reveals the key role of carbonates in the formation of a unique monophase layered (α+β) Ni(OH) 2 structure.…”

“…Results of XRD analysis have revealed that the samples synthesized with the diaphragm (Fig. 1, a, c, e, g) are (α+β) Ni(OH) 2 with medium crystallinity, which is in agreement with the literature [43]. Higher curren densities result in higher crystallinity.…”

“…Mixed (α/β) Ni(OH) 2 structure combines advantages of both nickel hydroxide forms [41,42]. The paper [43] describes the synthesis of highly active nickel hydroxide with layered (α+β) structure. Hydroxide was synthesized in the slit-diaphragm electrolyzer (SDE).…”

“Smart” anti­corrosion pigment based on layered double hydroxide: construction and characterization

“…The disadvantage of this method is a long duration. LDH can also be prepared electrochemically [44,45], however, for tripolyphosphate LDH this method is problematic to execute. LDH can also be prepared using homogeneous precipitation [46,47].…”

The effect of template residual content on supercapacitive characteristics of Ni(OH)2, obtained by template homogeneous precipitation

“…Among chemical precipitation methods there are direct chemical precipitation (slow addition of basic solution to a solution of Ni 2+ ) [9] or reversed synthesis (slow addition of nickel salt solution to basic solution) [10,11], and also twostep high-temperature synthesis [12] or sol-gel method [13]. Electrochemical methods are also used for the synthesis of nickel hydroxides [14,15], including synthesis in the slit diaphragm electrolyzer [16,17].…”