@article{ddd.uab.cat:301374,
      author = {Bernicola, María del Pilar and Lounasvuori, Mailis and Padilla-
               Pantoja, Jessica and Santiso, José and Debiemme-Chouvy,
               Catherine and Perrot, Hubert and Petit, Tristan and Garrido, Jose
               and Del Corro, Elena},
       title = {On the Electrochemical Activation of Nanoporous Reduced Graphene
               Oxide Electrodes Studied by In Situ/Operando Electrochemical
               Techniques},
     journal = {Advanced functional materials},
        year = {2024},
      volume = {34},
      number = {46},
       pages = {2408441--},
       month = {11},
    abstract = {Due to the difficult access of the electrolyte into the
               nanoconfined space of nanoporous reduced graphene oxide (rGO)
               electrodes, achieving the optimal electrochemical performance of
               these devices becomes a challenge. In this work, the dynamics of
               interfacial-governed phenomena are investigated during a voltage-
               controlled electrochemical activation of nanoporous rGO
               electrodes that leads to an enhanced electrochemical performance
               in terms of areal capacitance and electrochemical impedance. In
               situ/operando characterization techniques are used to reveal the
               dynamics of the irreversible material changes introduced during
               the activation process, including ionic diffusion and water
               confinement within the nanopores, along with the reduction of
               oxygenated groups and the decrease of the rGO interlayer
               distance. Furthermore, operando techniques are used to uncover
               the origin of the complex polarization-dependent dynamic response
               of rGO electrodes. The study reveals that the reversible
               protonation/deprotonation of remaining functional groups and the
               cation electro-adsorption/desorption process in the graphene
               basal plane govern the pseudocapacitive performance of nanoporous
               rGO electrodes. This work brings new understanding of the complex
               interplay between surface chemistry, ion confinement, and
               desolvation processes occurring during electrochemical cycling in
               nanoporous rGO electrodes, offering new insights for designing
               high-performing electrodes based on nanoporous rGO.},
         doi = {10.1002/adfm.202408441},
         url = {https://ddd.uab.cat/record/301374},
}