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Related Experiment Video

Updated: Nov 4, 2025

Electroactive Polymer Nanoparticles Exhibiting Photothermal Properties
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Stabilizer-free bismuth nanoparticles for selective polyol electrooxidation.

Weiran Zheng1, Yong Li1, Chui-Shan Tsang2

  • 1Department of Applied Biology and Chemical Technology and the State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China.

Iscience
|May 24, 2021
PubMed
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Bismuth nanoparticles overcome the limitations of traditional bismuth catalysts. These nanoparticles enable selective glucose oxidation and C-C bond cleavage, offering a less toxic alternative for bioelectrocatalysis and electrosynthesis.

Area of Science:

  • Electrochemistry
  • Materials Science
  • Catalysis

Background:

  • Bismuth is a low-toxicity heavy metal, ideal for environmental and health applications.
  • Bismuth's use as an anodic electrocatalyst is limited by the formation of a Bi(OH)3 inhibitor layer.
  • Nanoparticle catalysts offer unique properties for overcoming material limitations.

Purpose of the Study:

  • To develop a bismuth-based electrocatalyst that avoids inhibitor layer formation.
  • To investigate the electrocatalytic activity of bismuth nanoparticles for polyol oxidation.
  • To explore the selective oxidation and C-C bond cleavage of glucose using bismuth catalysts.

Main Methods:

  • Laser ablation was used to synthesize bismuth nanoparticles.
  • Electrochemical oxidation of glucose was performed using bismuth nanoparticle catalysts.
Keywords:
CatalysisElectrochemistryMaterials Science

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  • Products of glucose electrooxidation were analyzed to determine selectivity.

    • Main Results:

    • Laser ablated bismuth nanoparticles effectively prevented the formation of the Bi(OH)3 inhibitor layer.
    • Bismuth nanoparticles facilitated the generation of high-valent Bi(V) species.
    • Highly selective oxidation and C-C bond cleavage of glucose were achieved, producing arabinonic acid, erythronic acid, and glyceric acid.
    • The catalytic system demonstrated high selectivity for products beyond the commonly reported gluconic acid.

    Conclusions:

    • Bismuth nanoparticles are effective anodic electrocatalysts, overcoming previous limitations.
    • The generation of Bi(V) species is key to the catalytic activity and selectivity.
    • This work presents a promising, less toxic bismuth electrocatalyst for bioelectrocatalysis and electrochemical biomass conversion.
    • Bismuth nanoparticle catalysts demonstrate potential for C-C bond cleavage in electrosynthesis.