Electrochemical growth and characterisation of ZnO nanostructures for dye‐sensitised solar cells

Dubey, R.S.; Saravanan, S.

doi:10.1049/mnl.2020.0251

Cited by 2 publications

(1 citation statement)

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“…The latter includes electrochemical, sol gel, precipitation, and emulsion processing. A zinc ion from the salt ZnCl 2 is reduced by oxygen, [18] hydrogen peroxide, [13] nitrate ions or any other stabilizer [19] in the electrochemical method. In the sol gel process, zinc acetate is hydrolyzed and polymerized to obtain a gel, i. e., nanorods close to 85 nm, [16] or equiaxial 47 nm nanoparticles [20] have been obtained from this method.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Approach to the Production of ZnO Nanoparticles by Controlled Precipitation Method in Methanol

Suárez

León-Molina

2022

ChemistrySelect

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Several works have demonstrated the utility of thermodynamics for understanding the formation process of ZnO in a specific ambient. In this work, equilibrium relations, mass balances and charge balances were used to derive chemical stability and predominance diagrams that allow relating the experimental observations of the synthesis of zinc oxide in methanol by the precipitation method to the expected product composition. The proposed equilibrium model considers the formation of zinc complexes with acetate (OAc−) and hydroxide (OH−) ions. Zinc oxide was also synthesized in similar conditions as those employed for calculations. The reaction monitoring was carried out by measuring pH and it was compared with the pH estimated using the model. Structural characterization of the product by X ray diffraction and scanning electron microscopy was performed. The proposed model predicts the formation of zinc oxide as the only species in the solid state, which agrees with the experimental results.

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