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Hydrogen generation from photoelectrochemical water splitting based on nanomaterials
Author(s) -
Li Y.,
Zhang J.Z.
Publication year - 2010
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.200910025
Subject(s) - water splitting , hydrogen , semiconductor , materials science , nanotechnology , nanomaterials , hydrogen production , hydrogen fuel , photocatalytic water splitting , energy carrier , environmentally friendly , holy grail , hydrogen storage , energy transformation , band gap , optoelectronics , photocatalysis , computer science , chemistry , physics , catalysis , ecology , biochemistry , thermodynamics , organic chemistry , biology , world wide web
Hydrogen is potentially one of the most attractive and environmentally friendly fuels for energy applications. Safe and efficient generation, storage, and utilization of hydrogen present major challenges in its widespread use. Hydrogen generation from water splitting represents a holy grail in energy science and technology, as water is the most abundant hydrogen source on the Earth. Among different methods, hydrogen generation from photoelectrochemical (PEC) water splitting using semiconductors as photoelectrodes is one of the most scalable and cost‐effective approaches. Compared to bulk materials, nanostructured semiconductors offer potential advantages in PEC application due to their large surface area and size‐dependent properties, such as increased absorption coefficient, increased band‐gap energy, and reduced carrier‐scattering rate. This article provides a brief overview of some recent research activities in the area of hydrogen generation from PEC water splitting based on nanostructured semiconductor materials, with a particular emphasis on metal oxides. Both scientific and technical issues are critically analyzed and reviewed.