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Amorphous nickel boride facilitates active site generation for HMF electrooxidation.

Yi Xiao Wu1, Hao Guan Xu1, Ji Kai Liu1

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We developed an amorphous NiB(O) electrocatalyst that efficiently oxidizes 5-hydroxymethylfurfural (HMFOR). This catalyst achieves high yields of 2,5-furandicarboxylic acid (FDCA) with excellent stability.

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Area of Science:

  • Electrochemistry
  • Materials Science
  • Catalysis

Background:

  • 5-Hydroxymethylfurfural (HMFOR) is a key platform chemical derived from biomass.
  • Efficient oxidation of HMFOR to 2,5-furandicarboxylic acid (FDCA) is crucial for sustainable chemical production.
  • Development of advanced electrocatalysts is needed to improve HMFOR oxidation efficiency and selectivity.

Purpose of the Study:

  • To introduce a novel amorphous NiB(O) electrocatalyst for HMFOR.
  • To investigate the relationship between the amorphous structure and catalytic performance.
  • To evaluate the electrocatalyst's efficiency, selectivity, and stability in HMFOR oxidation.

Main Methods:

  • Synthesis and characterization of the amorphous NiB(O) electrocatalyst.
  • Electrochemical testing of the catalyst for HMFOR oxidation reaction (HMFOR).
  • Analysis of reaction products to determine yield and conversion rates.

Main Results:

  • The amorphous NiB(O) structure enables rapid catalyst reconstruction, enhancing HMFOR kinetics.
  • Achieved a high current density of 300 mA cm-2 at a low potential of 1.44 V vs. RHE.
  • Exhibited over 92% yield of 2,5-furandicarboxylic acid (FDCA) with near 100% conversion in five cycles.

Conclusions:

  • Amorphous NiB(O) is a highly effective electrocatalyst for HMFOR.
  • The catalyst's unique structure promotes efficient and stable oxidation of HMFOR to FDCA.
  • This work offers a promising pathway for sustainable production of FDCA.