% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Techert:490862,
      author       = {Techert, Simone and Sreekantan Nair Lalithambika, Sreeju
                      and Reuss, Torben},
      title        = {{A}dvancements in liquid jet technology and {X}-ray
                      spectroscopy for understanding energy conversion materials
                      during operation},
      journal      = {Accounts of chemical research},
      volume       = {56},
      number       = {3},
      issn         = {0001-4842},
      address      = {Washington, DC},
      publisher    = {ACS Publications},
      reportid     = {PUBDB-2022-08083},
      pages        = {203 - 214},
      year         = {2023},
      abstract     = {CONSPECTUS. Water splitting is intensively studied for
                      sustainable and effective energy storage in green /
                      alternative energy harvesting-storage-release cycles. In
                      this work, we present our recent developments for combining
                      liquid-jet microtechnology with different types of soft
                      X-ray spectroscopy at high flux X-ray sources, in particular
                      developed for studying the oxygen evolution reaction (OER).
                      We are particularly interested in the development of in-situ
                      photon-in / photon-out techniques, such as in-situ Resonant
                      Inelastic X-ray Scattering (RIXS) techniques at high
                      repetition frequency X-ray sources, pointing towards
                      operando capabilities. The pilot catalytic systems we use
                      are perovskites, with the general structure ABO3 with
                      lanthanides or group II elements on the A-site and
                      transition metals on the B-site. Depending on the chemical
                      substitutions of ABO3, their catalytic activity for OER can
                      composition-dependent be tuned. In this work, we present our
                      in-situ RIXS studies of the manganese L-edge of perovskites
                      during OER. We have developed various X-ray spectroscopy
                      approaches like transmission zone plate-, reflection zone
                      plate- and grating-based emission spectroscopy techniques.
                      Combined with tunable incidence X-ray energies, we yield
                      complementary information about changing (inverse) X-ray
                      absorption features of the perovskites allowing us to deduce
                      element- and oxidation-state-specific chemical monitoring of
                      the catalyst. Adding liquid jet technology, we monitor
                      element- and oxidation-state specific the catalyst with
                      water adsorbate during OER. By comparing the different
                      technical spectroscopy approaches combined with
                      high-repetition frequency experiments at synchrotrons and
                      free-electron lasers, we conclude that the combination of
                      liquid jet with low-resolution zone-plate based X-ray
                      spectroscopy are sufficient for element- and oxidation-state
                      specific chemical monitoring during OER and easy to handle.
                      For an in-depth study of OER mechanisms, however, including
                      the characterization of catalyst-water adsorbate as their
                      charge transfer properties and specially valence
                      intermediates formed during OER high-resolution spectroscopy
                      tools based on a combination of liquid jets with gratings
                      bear bigger potential since they allow to resolve otherwise
                      overlapping X-ray spectroscopy transitions. Common for all
                      experimental approaches is the conclusion that without the
                      versatile developments of liquid jets and liquid beam
                      technologies, elaborate experiments such as the highly
                      repetitive experiments at high flux X-ray sources (like
                      synchrotrons or free-electron lasers) would hardly be
                      possible. Such experiments allow a sample refreshment for
                      every single X-ray shot up to 5 MHz repetition frequencies
                      so that it is possible (a) to study X-ray
                      radiation-sensitive samples but also (b) utilize novel types
                      of flux-hungry X-ray spectroscopy tools like photon-in /
                      photon-out X-ray spectroscopy for studying the OER.},
      cin          = {FS-SCS},
      ddc          = {540},
      cid          = {I:(DE-H253)FS-SCS-20131031},
      pnm          = {633 - Life Sciences – Building Blocks of Life: Structure
                      and Function (POF4-633) / 6G2 - FLASH (DESY) (POF4-6G2) /
                      6G3 - PETRA III (DESY) (POF4-6G3) / SFB 1073 C02 - In-situ
                      hochauflösende Untersuchung des aktiven Zustands bei der
                      (photo-) elektrochemischen Wasserspaltung (C02) (240172646)
                      / SFB 1073 B06 - Echtzeituntersuchungen der optischen
                      Anregung in oligonuklearen Metallkomplexen mit schaltbaren
                      Spin- und Ladungszuständen (B06) (240171831)},
      pid          = {G:(DE-HGF)POF4-633 / G:(DE-HGF)POF4-6G2 /
                      G:(DE-HGF)POF4-6G3 / G:(GEPRIS)240172646 /
                      G:(GEPRIS)240171831},
      experiment   = {EXP:(DE-H253)P-P04-20150101 / EXP:(DE-H253)F-BL1-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {36636991},
      UT           = {WOS:000920311500001},
      doi          = {10.1021/acs.accounts.2c00525},
      url          = {https://bib-pubdb1.desy.de/record/490862},
}