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February 2, 2026Химия высоких энергий / High Energy Chemistry

Kinetic Regularities of Plasma-Solution Synthesis of Nickel Oxide

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Research studies the kinetics of nickel hydroxocompound formation in aqueous solutions, indicating important mechanisms for synthesis.

This research aims to understand the kinetics of nickel hydroxocompound formation in aqueous solutions under electrical discharge conditions.
Examined the formation of colloidal nickel compounds using direct current discharge in Ni(NO) • 6HO solutions.
Tested solution concentrations ranging from 20-60 mmol/L and discharge currents of 20-60 mA.
Determined reaction kinetics and energy efficiency of ion conversion.
Utilized X-ray diffraction to analyze precipitate composition.
Identified that colloidal systems form only when the solution acts as anode, not cathode.
Kinetics of nickel ion concentration loss follows zero/first order kinetics, independent of discharge current.
Conversion degrees ranged from 4-25%, energy efficiency was 0.1-0.5 ions per 100 eV.
Post-calcination, precipitates were confirmed as crystalline β-NiO.

K. V. Smirnova (2025) studied this question.

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February 2, 2026Химия высоких энергий / High Energy Chemistry

View Full Paper

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Authors

Research studies the kinetics of nickel hydroxocompound formation in aqueous solutions, indicating important mechanisms for synthesis.

This research aims to understand the kinetics of nickel hydroxocompound formation in aqueous solutions under electrical discharge conditions.
Examined the formation of colloidal nickel compounds using direct current discharge in Ni(NO) • 6HO solutions.
Tested solution concentrations ranging from 20-60 mmol/L and discharge currents of 20-60 mA.
Determined reaction kinetics and energy efficiency of ion conversion.
Utilized X-ray diffraction to analyze precipitate composition.
Identified that colloidal systems form only when the solution acts as anode, not cathode.
Kinetics of nickel ion concentration loss follows zero/first order kinetics, independent of discharge current.
Conversion degrees ranged from 4-25%, energy efficiency was 0.1-0.5 ions per 100 eV.
Post-calcination, precipitates were confirmed as crystalline β-NiO.

K. V. Smirnova (2025) studied this question.

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