concentration of cobalt zincate nanocomposite, temperature, reaction/crystallization time, and presence of other ions and molecules involved during the synthesis.

Nano cobalt and porous zinc–cobalt oxide particles were synthesized using the concept of coordination compounds of the type [M(II)L,L0] (where M(II) ¼ Co(II) & Zn(II)L¼ 4-hydroxy benzaldehyde and L0 ¼ piperazine) and were thoroughly characterized. Because the precursors are coordination compounds

Sep 1, 2022 · In the first step, cleaned, sorted and crushed cemented carbide scrap reacts with zinc at 900–1000 °C in argon or nitrogen atmosphere. The zinc infiltrates the cemented carbides and forms intermetallic phases with the Co binder.

The rate of formation of the Co-Zn intemetallic compound was measured using the step-functional potentiostatic method Zinc was deposited on a previously prepared cobalt amalgam electrode, and then, in a second step, the unreacted zinc was reoxidized.

Apr 1, 2022 · In this work, Co(W) materials were put in contact with liquid zinc and held at specific temperatures, giving insight into the formation of intermetallic Co-Zn phases by varying the...

May 1, 2014 · This paper reports the performance of the liquefied petroleum gas sensing properties of cobalt zincate nanocomposite synthesized via conventional precipitation route. The structural and...

Jul 24, 2022 · When zincate ions reach supersaturation within the vicinity of the electrode, dehydration of zincate ions into ZnO occurs. Zn oxy-precipitation impedes further Zn dissolution, leading to a current drop and final passivation.

The reaction of cobalt ion with fully ionized EDTA (Y4-) can be represented by the equation: Co2+ (aq) + Y 4-(aq) 6 CoY 2-(aq) The end point of the titration can be obtained by observing the color change of a suitable indicator. In complexometric titrations, the indicator (In) must also act as a ligand toward the metal ion to be determined.

This paper reports the performance of the liquefied petroleum gas sensing properties of cobalt zincate nanocomposite synthesized via conventional precipitation route. The structural and morphological characterizations of the nanocomposite were analyzed by means of X-ray diffraction (XRD) and Scanning electron microscopy (SEM).

Nov 1, 2023 · The current study focused on the kinetics of zinc oxide formation from sodium zincate solution by hydrolysis crystallization in a batch crystallizer. Process parameters including temperature, seed, agitation speed and supersaturation on particles size distribution (PSD), crystal morphology and crystallization yield were discussed in detail.