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@INPROCEEDINGS{Saei:1037741,
      author       = {Saei, Worawee and Pasel, Joachim and Scheepers, Fabian and
                      Korte, Carsten},
      title        = {{D}eveloping {C}u-{C}o-{B}ased {C}atalysts for {E}nhanced
                      {OER} in {A}lkaline {W}ater {E}lectrolysis},
      issn         = {2151-2043},
      reportid     = {FZJ-2025-00901},
      year         = {2023},
      abstract     = {Copper, Cobalt-based (CuCo-based) catalysts are promising
                      candidates for the anodes of alkaline water electrolyzers
                      due to their high electrical conductivity, variable chemical
                      state, and the potential for cost-effective large-scale
                      production. However, the effective chemical composition and
                      structure of these catalysts are still being explored. In
                      this work, the focus is on the proposal CuCo-based catalysts
                      for the oxygen evolution reaction (OER) in alkaline water
                      electrolysis, with significant advantages for their use in
                      anion exchange membrane (AEM) electrolyzer systems.
                      CuCo-based catalysts with varying Cu:Co ratios were
                      synthesized using a co-precipitation method and heat
                      treatment, resulting in spinel type (oxides), CuCo-O, or
                      brucite type structures (hydroxides), CuCo-OH. The catalysts
                      were characterized using XRD, SEM, EDX, TEM and ICP-OES to
                      confirm their morphology and composition. The OER catalytic
                      performance of the catalysts was evaluated using rotating
                      disk electrode (RDE) measurements with a 3-electrode system
                      and 1 M KOH as the electrolyte.Our results show that CuCo-OH
                      provides lower overpotentials than CuCo-O at a current
                      density of 10 mA/cm2. Nevertheless, CuCo-O exhibits a more
                      consistent performance than CuCo-OH, indicating its superior
                      properties in terms of reproducibility and reliability.
                      Additionally, we propose a promising Cu:Co mol ratio of
                      CuCo-OH and CuCo-O. These findings highlight the importance
                      of the chemical composition and provides insight into the
                      structure design of OER catalysts for alkaline water
                      electrolysis. The results suggest a synergistic effect of Cu
                      and Co in the catalyst composition, which could be further
                      explored in future research.},
      month         = {Oct},
      date          = {2023-10-08},
      organization  = {244th ECS Meeting, Gothenburg
                       (Sweden), 8 Oct 2023 - 12 Oct 2023},
      cin          = {IEK-14 / IET-4},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-14-20191129 / I:(DE-Juel1)IET-4-20191129},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)1},
      doi          = {10.1149/MA2023-02572775mtgabs},
      url          = {https://juser.fz-juelich.de/record/1037741},
}