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@ARTICLE{Puppin:893121,
      author       = {Puppin, Lara G. and da Silva, Luís F. and Carmo, Marcelo
                      and Varela, Hamilton and Lopes, Osmando F.},
      title        = {{E}ffect of the oxidation state and morphology of
                      {S}n{O}x-based electrocatalysts on the {CO}2 reduction
                      reaction},
      journal      = {Journal of materials research},
      volume       = {36},
      issn         = {2044-5326},
      address      = {Cambridge [u.a.]},
      publisher    = {Cambridge Univ. Press},
      reportid     = {FZJ-2021-02578},
      pages        = {4240–4248},
      year         = {2021},
      abstract     = {CO2 electrochemical reduction reaction (CO2RR) is an
                      attractive strategy for closing the anthropogenic carbon
                      cycle and storing intermittent renewable energy. Tin-based
                      electrocatalysts exhibit remarkable properties for reducing
                      CO2 into HCOOH. However, the effects of morphology and
                      oxidation state of tin-based electrocatalysts on the
                      performance of CO2 reduction have not been well-described.
                      We evaluate the oxidation state and particle size of SnOx
                      for CO2 reduction. SnOx was effective for converting CO2
                      into formic acid, reaching a maximum selectivity of $69\%.$
                      The SnO exhibited high activity for CO2RR compared to SnO2
                      electrocatalysts. A pre-reduction step of a SnO2
                      electrocatalyst increased its CO2 reduction performance,
                      confirming that Sn2+ is more active than Sn4+ sites. The
                      microsized SnO2 is more effective for converting CO2 into
                      formic acid than nanosized SnO2, likely due to the
                      impurities of nanosized SnO2. We illuminated the role played
                      by both SnOx particle size and oxidation state on CO2RR
                      performance.},
      cin          = {IEK-14},
      ddc          = {670},
      cid          = {I:(DE-Juel1)IEK-14-20191129},
      pnm          = {134 - Electrolysis and Hydrogen (POF3-134) / 1231 -
                      Electrochemistry for Hydrogen (POF4-123)},
      pid          = {G:(DE-HGF)POF3-134 / G:(DE-HGF)POF4-1231},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000658355200003},
      doi          = {10.1557/s43578-021-00250-1},
      url          = {https://juser.fz-juelich.de/record/893121},
}