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@ARTICLE{Preuster:829270,
      author       = {Preuster, Patrick and Papp, Christian and Wasserscheid,
                      Peter},
      title        = {{L}iquid {O}rganic {H}ydrogen {C}arriers ({LOHC}s):
                      {T}oward a {H}ydrogen-free {H}ydrogen {E}conomy},
      journal      = {Accounts of chemical research},
      volume       = {50},
      number       = {1},
      issn         = {1520-4898},
      address      = {Columbus, Ohio},
      publisher    = {American Chemical Soc.},
      reportid     = {FZJ-2017-03000},
      pages        = {74 - 85},
      year         = {2017},
      abstract     = {The need to drastically reduce CO$_{2}$ emissions will lead
                      to the transformation of our current, carbon-based energy
                      system to a more sustainable, renewable-based one. In this
                      process, hydrogen will gain increasing importance as
                      secondary energy vector. Energy storage requirements on the
                      TWh scale (to bridge extended times of low wind and sun
                      harvest) and global logistics of renewable energy
                      equivalents will create additional driving forces toward a
                      future hydrogen economy. However, the nature of hydrogen
                      requires dedicated infrastructures, and this has prevented
                      so far the introduction of elemental hydrogen into the
                      energy sector to a large extent. Recent scientific and
                      technological progress in handling hydrogen in chemically
                      bound form as liquid organic hydrogen carrier (LOHC)
                      supports the technological vision that a future hydrogen
                      economy may work without handling large amounts of elemental
                      hydrogen. LOHC systems are composed of pairs of
                      hydrogen-lean and hydrogen-rich organic compounds that store
                      hydrogen by repeated catalytic hydrogenation and
                      dehydrogenation cycles. While hydrogen handling in the form
                      of LOHCs allows for using the existing infrastructure for
                      fuels, it also builds on the existing public confidence in
                      dealing with liquid energy carriers. In contrast to hydrogen
                      storage by hydrogenation of gases, such as CO$_{2}$ or
                      N$_{2}$, hydrogen release from LOHC systems produces pure
                      hydrogen after condensation of the high-boiling carrier
                      compounds.This Account highlights the current
                      state-of-the-art in hydrogen storage using LOHC systems. It
                      first introduces fundamental aspects of a future hydrogen
                      economy and derives therefrom requirements for suitable LOHC
                      compounds. Molecular structures that have been successfully
                      applied in the literature are presented, and their property
                      profiles are discussed. Fundamental and applied aspects of
                      the involved hydrogenation and dehydrogenation catalysis are
                      discussed, characteristic differences for the catalytic
                      conversion of pure hydrocarbon and nitrogen-containing LOHC
                      compounds are derived from the literature, and attractive
                      future research directions are highlighted.Finally,
                      applications of the LOHC technology are presented. This part
                      covers stationary energy storage (on-grid and off-grid),
                      hydrogen logistics, and on-board hydrogen production for
                      mobile applications. Technology readiness of these fields is
                      very different. For stationary energy storage systems, the
                      feasibility of the LOHC technology has been recently proven
                      in commercial demonstrators, and cost aspects will decide on
                      their further commercial success. For other highly
                      attractive options, such as, hydrogen delivery to hydrogen
                      filling stations or direct-LOHC-fuel cell applications,
                      significant efforts in fundamental and applied research are
                      still needed and, hopefully, encouraged by this Account.},
      cin          = {IEK-11},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-11-20140314},
      pnm          = {134 - Electrolysis and Hydrogen (POF3-134)},
      pid          = {G:(DE-HGF)POF3-134},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000392457800010},
      pubmed       = {pmid:28004916},
      doi          = {10.1021/acs.accounts.6b00474},
      url          = {https://juser.fz-juelich.de/record/829270},
}