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@ARTICLE{Tang:878319,
      author       = {Tang, Peng‐Yi and Han, Li‐Juan and Hegner, Franziska
                      Simone and Paciok, Paul and Biset‐Peiró, Martí and Du,
                      Hong‐Chu and Wei, Xian‐Kui and Jin, Lei and Xie,
                      Hai‐Bing and Shi, Qin and Andreu, Teresa and
                      Lira‐Cantú, Mónica and Heggen, Marc and
                      Dunin‐Borkowski, Rafal E. and López, Núria and
                      Galán‐Mascarós, José Ramón and Morante, Joan Ramon and
                      Arbiol, Jordi},
      title        = {{B}oosting {P}hotoelectrochemical {W}ater {O}xidation of
                      {H}ematite in {A}cidic {E}lectrolytes by {S}urface {S}tate
                      {M}odification5},
      journal      = {Advanced energy materials},
      volume       = {9},
      number       = {34},
      issn         = {1614-6840},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2020-02775},
      pages        = {1901836 -},
      year         = {2019},
      abstract     = {State‐of‐the‐art water‐oxidation catalysts (WOCs)
                      in acidic electrolytes usually contain expensive noble
                      metals such as ruthenium and iridium. However, they too
                      expensive to be implemented broadly in semiconductor
                      photoanodes for photoelectrochemical (PEC) water splitting
                      devices. Here, an Earth‐abundant CoFe Prussian blue
                      analogue (CoFe‐PBA) is incorporated with core–shell
                      Fe2O3/Fe2TiO5 type II heterojunction nanowires as composite
                      photoanodes for PEC water splitting. Those deliver a high
                      photocurrent of 1.25 mA cm−2 at 1.23 V versus reversible
                      reference electrode in acidic electrolytes (pH = 1). The
                      enhancement arises from the synergic behavior between the
                      successive decoration of the hematite surface with
                      nanolayers of Fe2TiO5 and then, CoFe‐PBA. The underlying
                      physical mechanism of performance enhancement through
                      formation of the Fe2O3/Fe2TiO5/CoFe‐PBA heterostructure
                      reveals that the surface states’ electronic levels of
                      hematite are modified such that an interfacial charge
                      transfer becomes kinetically favorable. These findings open
                      new pathways for the future design of cheap and efficient
                      hematite‐based photoanodes in acidic electrolytes.},
      cin          = {ER-C-1 / ER-C-2 / PGI-5},
      ddc          = {050},
      cid          = {I:(DE-Juel1)ER-C-1-20170209 / I:(DE-Juel1)ER-C-2-20170209 /
                      I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)
                      / DFG project 167917811 - SFB 917: Resistiv schaltende
                      Chalkogenide für zukünftige Elektronikanwendungen:
                      Struktur, Kinetik und Bauelementskalierung "Nanoswitches"
                      (167917811)},
      pid          = {G:(DE-HGF)POF3-143 / G:(GEPRIS)167917811},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000484080400001},
      doi          = {10.1002/aenm.201901836},
      url          = {https://juser.fz-juelich.de/record/878319},
}