李彬   

李彬，博士毕业于复旦大学化学，师从赵东元院士，博士毕业后在新加坡南洋理工大学继续博士后的研究工作。主要从事新型多孔材料的合成与应用，尤其是在微介孔材料的绿色合成、性能调控以及在催化领域中形成了独特的思想见解，取得了一系列有影响力的研究成果。（1）发展了沸石模板制备多孔缺陷碳的方法，并在氯碱工业析氯反应中表现出优异的催化性能。（2）提出了功能纳米颗粒诱导沸石从外到里重结晶的机理，为设计高效催...Detials

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Polysulfide modified PtCu intermetallic nanocatalyst with enrichment realizes efficient electrooxidation ethanol to CO<sub>2</sub>

Release time:2024-12-23  Hits:

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  • Abstract:The main problem faced by ethanol oxidation reaction (EOR) includes low activity, poor selectivity, and durability. In the study, we found that polysulfide modified on the surface of PtCu intermetallic (IM)/C can simultaneously enrich hydroxyl and ethanol, which could effectively improve the catalytic activity, CO2 selectivity, and durability of catalyst. The mass activity and the specific activity of the product in 1 M KOH electrolyte reached 17.83 A.mg(Pt)(-1) and 24.67 mA.cm(-2). The CO2 selectivity of polysulfide modified product achieved 93.5%, which was 30 folds higher than Pt/C. In addition, the catalyst showed high catalytic stability. The mechanism study demonstrates that the surface modified polysulfide could significantly boost the enrichment effect of ethanol and hydroxyl species, accelerating C-C bond cleavage and CO oxidation.
  • Volume:17
  • Issue:4
  • Translation or Not:no
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