Noble-metal high-entropy-alloy tuning the products of electrocatalytic 5-hydroxymethylfurfural oxidation

Huang, Xianfeng; Zhang, Bo; Guo, Cong; Yang, Guangxing; Zhang, Qiao; Li, Shuang; Yu, Hao; Peng, Feng

doi:10.1039/d3se00756a

Cited by 4 publications

(1 citation statement)

References 39 publications

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“…[28] A recently emerged alternative for single noble metal catalysts and basic alloys involves high entropy alloys or oxides comprised of five or more elements. Examples of such materials, like (FeCrCoNiCu) 3 O 4 [34] or PtRhPdIrRuAu, [35] have exhibited promise with high yielding catalytic conversions. Due to the intrinsically high costs and low activity of noble metals, non-noble metal-based catalysts continue to be the predominant materials for HMF oxidation.…”

Section: Introductionmentioning

confidence: 99%

Immobilised Ruthenium Complexes for the Electrooxidation of 5‐Hydroxymethylfurfural

Bühler,

Muntwyler,

Roithmeyer

et al. 2024

Chemistry A European J

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Abundantly available biomass‐based platform chemicals, including 5‐hydroxymethyl furfural (HMF), are essential stepping stones in steering the chemical industry away from fossil fuels. The efficient catalytic oxidation of HMF to its diacid derivative, 2,5‐furandicarboxylic acid (FDCA), is a promising research area with potential applications in the polymer industry. Currently, the most encouraging approaches are based on solid‐state catalysts and are often conducted in basic aqueous media, conditions where HMF oxidation competes with its decomposition. Efficient molecular catalysts are practically unknown for this reaction. In this study, we report on the synthesis and electrocatalysis of surface‐bound molecular ruthenium complexes for the transformation of HMF to FDCA under acidic conditions. Catalyst immobilisation on mesoporous indium tin oxide electrodes is achieved through the incorporation of phosphonic acid anchoring groups. Screening experiments with HMF and further reaction intermediates revealed the catalytic route and bottlenecks in the catalytic synthesis of FDCA. Utilising these immobilised electrocatalysts, FDCA yields of up to 85% and faradaic efficiencies of 91% were achieved, without any indication of substrate decomposition. Surface analysis by X‐ray photoelectron spectroscopy (XPS) post‐electrocatalysis unveiled the desorption of the catalyst from the electrode surface as a limiting factor in terms of catalytic performance.

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Section: Introductionmentioning

confidence: 99%

Immobilised Ruthenium Complexes for the Electrooxidation of 5‐Hydroxymethylfurfural

Bühler,

Muntwyler,

Roithmeyer

et al. 2024

Chemistry A European J

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High-entropy nanostructured electrocatalysts for water and carbon dioxide electrolysis

Wang,

Chen,

Wen

et al. 2024

Sci. China Mater.

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Cobalt and nitrogen co-modified graphitic carbon: A bifunctional catalyst for thermocatalytic and electrocatalytic oxidation of HMF to FDCA

Gao,

Fan,

Zhu

et al. 2024

Catalysis Today

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Noble-metal high-entropy-alloy tuning the products of electrocatalytic 5-hydroxymethylfurfural oxidation

Abstract: Noble-metal high-entropy-alloy nanoparticles (HEA NPs) have been synthesized via the co-reduction of noble-metal precursors in triethylene glycol, showing the activity in electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to valuable chemicals. PtRhPdIr...

Cited by 4 publications

References 39 publications

Immobilised Ruthenium Complexes for the Electrooxidation of 5‐Hydroxymethylfurfural

Immobilised Ruthenium Complexes for the Electrooxidation of 5‐Hydroxymethylfurfural

High-entropy nanostructured electrocatalysts for water and carbon dioxide electrolysis

Cobalt and nitrogen co-modified graphitic carbon: A bifunctional catalyst for thermocatalytic and electrocatalytic oxidation of HMF to FDCA

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