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@ARTICLE{Hursn:637920,
      author       = {Hursán, Dorottya and Timoshenko, Janis and Martini, Andrea
                      and Jeon, Hyo Sang and Ortega, Eduardo and Rüscher, Martina
                      and Bergmann, Arno and Yoon, Aram and Hejral, Uta and
                      Herzog, Antonia and Rettenmaier, Clara and Haase, Felix T.
                      and Grosse, Philipp and Roldan Cuenya, Beatriz},
      title        = {{CO}$_2$ {R}eduction on {C}opper‐{N}itrogen‐{D}oped
                      {C}arbon {C}atalysts {T}uned by {P}ulsed {P}otential
                      {E}lectrolysis: {E}ffect of {P}ulse {P}otential},
      journal      = {Advanced functional materials},
      volume       = {36},
      number       = {21},
      issn         = {1616-301X},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {PUBDB-2025-03910},
      pages        = {e10827},
      year         = {2025},
      abstract     = {Pulsed electrolysis attracts attention as a simple tool for
                      tuning the structure and properties in many electrocatalytic
                      systems. Here, pulsed reaction protocols are used to control
                      the structure and selectivity of copper and nitrogen
                      co-doped carbon (Cu-N-C) catalysts, employed for
                      electrocatalytic CO2 reduction reaction (CO2RR).
                      Specifically, while this catalyst is mostly selective for
                      hydrogen during potentiostatic reduction, as high as $82\%$
                      Faradaic efficiency for CO2RR products is reached by
                      optimizing the pulse parameters. It is found that the
                      product distribution depends strongly on the values of both
                      the anodic and cathodic potentials, and the pulse parameter
                      ranges for preferential CO, CH4, and C2H4 formation were
                      identified. By performing detailed in situ and operando
                      spectroscopic analysis, it is found that i) pulsing creates
                      a favorable microenvironment for CO2RR by reducing the
                      surface H-coverage on the N-doped carbon support, and ii)
                      the dynamic evolution of the Cu active sites directs the
                      selectivity toward hydrocarbons (CH4, C2H4). The periodic
                      application of increasingly more anodic potentials results
                      in more efficient redispersion of the metallic Cu clusters
                      that are formed under cathodic potential. The C1/C2+
                      selectivity ratio depends on the fraction of the stabilized
                      Cu single atoms and the size of the Cu particles formed
                      under working conditions.},
      cin          = {DOOR ; HAS-User},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / DFG project
                      G:(GEPRIS)390540038 - EXC 2008: Unifying Systems in
                      Catalysis "UniSysCat" (390540038)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(GEPRIS)390540038},
      experiment   = {EXP:(DE-H253)P-P64-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1002/adfm.202510827},
      url          = {https://bib-pubdb1.desy.de/record/637920},
}