李彬   Professor

李彬，青岛科技大学材料科学与工程学院，崂山学者三层次教授，博士毕业于复旦大学化学系，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，合作导师陈晓东教授。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控制合成、性能调控以及在电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。立项主持国家自然科学基金面上项目2项，主持国家自然科学基金山东省区域创新发...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:

  • Key Words:-
  • 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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