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

Metal doping and Hetero-engineering of Cu-doped CoFe/Co embedded in N-doped carbon for improving trifunctional electrocatalytic activity in alkaline seawater

Release time:2023-10-19  Hits:

  • Key Words:EFFICIENT HYDROGEN EVOLUTION; ARRAYS; FOAM
  • Abstract:The development of high-performance and robust electrocatalyst suitable for oxygen reduction reaction (ORR), hydrazine oxidation reaction (HzOR), and hydrogen evolution reaction (HER) in seawater still faces huge challenges. In this study, Cu-doped CoFe/Co encapsulated by N-doped carbon (Cu-CoFe/Co/NC) is synthesized via chemical precipitation followed by carbonization method, in which the electronic structure and d-band center of Cu-CoFe/Co/NC are regulated by metal doping and hetero-engineering. The as-synthesized Cu-CoFe/ Co/NC exhibit excellent electrocatalytic activity for ORR (E-1/2 = 0.87 V), HzOR (eta(10) = 281 mV), and HER (eta(-10) = 217 mV) in alkaline seawater. Inspiringly, the self-assembled direct hydrazine fuel cell (DHzFC) are used to power overall hydrazine splitting (OHzS) for proof of concept, demonstrating the great potential of Cu-CoFe/Co/NC as trifunctional electrocatalyst toward energy storage and conversion devices.
  • Volume:451
  • Issue:
  • Translation or Not:no