TY - JOUR
T1 - A review and perspective of efficient hydrogen generation via solar thermal water splitting
AU - Muhich, Christopher L.
AU - Ehrhart, Brian D.
AU - Al-Shankiti, Ibraheam
AU - Ward, Barbara J.
AU - Musgrave, Charles B.
AU - Weimer, Alan W.
N1 - Publisher Copyright:
© 2016 John Wiley & Sons, Ltd.
PY - 2016/5/1
Y1 - 2016/5/1
N2 - Solar thermal water splitting (STWS) produces renewable hydrogen from water using concentrated sunlight. Because it utilizes energy from the entire solar spectrum to directly drive the redox reactions that split water, it can achieve high theoretical solar-to-hydrogen efficiencies. In two-step STWS, a metal oxide is first heated by concentrated sunlight to high temperatures to reduce it and produce O2. In the second step, the reduced material is exposed to H2O to reoxidize it to its original oxidation state and produce H2. Various aspects of this process are reviewed in this work, including the reduction and oxidation chemistries of the active redox materials, the effects of operating conditions, and the solar thermal reactors in which the STWS reactions occur, and a perspective is given on the future optimization of STWS.
AB - Solar thermal water splitting (STWS) produces renewable hydrogen from water using concentrated sunlight. Because it utilizes energy from the entire solar spectrum to directly drive the redox reactions that split water, it can achieve high theoretical solar-to-hydrogen efficiencies. In two-step STWS, a metal oxide is first heated by concentrated sunlight to high temperatures to reduce it and produce O2. In the second step, the reduced material is exposed to H2O to reoxidize it to its original oxidation state and produce H2. Various aspects of this process are reviewed in this work, including the reduction and oxidation chemistries of the active redox materials, the effects of operating conditions, and the solar thermal reactors in which the STWS reactions occur, and a perspective is given on the future optimization of STWS.
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U2 - 10.1002/wene.174
DO - 10.1002/wene.174
M3 - Review article
AN - SCOPUS:84930030775
SN - 2041-8396
VL - 5
SP - 261
EP - 287
JO - Wiley Interdisciplinary Reviews: Energy and Environment
JF - Wiley Interdisciplinary Reviews: Energy and Environment
IS - 3
ER -