Evaluation of Polyol Reduction for Wet Synthesis of Metal Nanoparticles

Matsumoto, Takatoshi; Urakawa, Kiyoshi; Joseyphus, R. Justin; Tohji, Kazuyuki; Jeyadevan, Balachandran

doi:10.5796/electrochemistry.75.969

Cited by 2 publications

(2 citation statements)

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“…The reduction potential of polyol has been determined through experimental and quantum chemical calculations and reported to increase with temperature. [31][32][33][34] The reaction pathways of the oxidation of polyol and the reduction of metallic ion in the case of Co(OH) 2 in EG have been reported over a quarter century ago by Fie ´vet et al and this has been widely accepted. 14 According to this reaction, EG undergoes dehydration and leads to the formation of acetaldehyde (AcH).…”

Section: Introductionmentioning

confidence: 97%

Towards a designed synthesis of metallic nanoparticles in polyols – elucidation of the redox scheme in a cobalt–ethylene glycol system

et al. 2016

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Section: Introductionmentioning

confidence: 97%

Towards a designed synthesis of metallic nanoparticles in polyols – elucidation of the redox scheme in a cobalt–ethylene glycol system

et al. 2016

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“…Theoretical Estimation of the HOMO Values of Alcohols. The evaluation of the redox potential of polyol/ alcohol was attempted by the voltammetry method by the authors, 30 The measurements suggested that the reduction potential depended on the temperature and reached the highest value at the boiling point of the respective solvents. However, the measurements at temperatures close to the boiling point of the solvent were difficult.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Theoretical and Experimental Evaluation of the Reduction Potential of Straight-Chain Alcohols for the Designed Synthesis of Bimetallic Nanostructures

et al. 2021

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Recently, the development of bimetallic nanoparticles with functional properties has been attempted extensively but with limited control over their morphological and structural properties. The reason was the inability to control the kinetics of the reduction reaction in most liquid-phase syntheses. However, the alcohol reduction technique has demonstrated the possibility of controlling the reduction reaction and facilitating the incorporation of other phenomena such as diffusion, etching, and galvanic replacement during nanostructure synthesis. In this study, the reduction potential of straight-chain alcohols has been investigated using molecular orbital calculations and experimentally verified by reducing transition metals. The alcohols with a longer chain exhibited higher reduction potential, and 1-octanol was found to be the strongest among alcohols considered. Furthermore, the experimental evaluation carried out via the synthesis of metallic Cu, Ni, and Co particles was consistent with the theoretical predictions. The reaction mechanism of metallic particle formation was also studied in detail in the Ni–1-octanol system, and the metal ions were confirmed to be reduced via the formation of nickel alkoxide. The results of this investigation were successfully implemented to synthesize Cu–Ni bimetallic nanostructures (core–shell, wire, and tube) via the incorporation of diffusion and etching besides the reduction reaction. These results suggest that the designed synthesis of a wide range of bimetallic nanostructures with more refined control has become possible.

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Evaluation of Polyol Reduction for Wet Synthesis of Metal Nanoparticles

Cited by 2 publications

References 28 publications

Towards a designed synthesis of metallic nanoparticles in polyols – elucidation of the redox scheme in a cobalt–ethylene glycol system

Towards a designed synthesis of metallic nanoparticles in polyols – elucidation of the redox scheme in a cobalt–ethylene glycol system

Theoretical and Experimental Evaluation of the Reduction Potential of Straight-Chain Alcohols for the Designed Synthesis of Bimetallic Nanostructures

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