2012
DOI: 10.1039/c2sc20874a
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Cu2O|NiOx nanocomposite as an inexpensive photocathode in photoelectrochemical water splitting

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Cited by 253 publications
(174 citation statements)
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“…[6, 10] Although the valence band of WO 3 is not negative enough to achieve hydrogen evolution, it can be coupled with a photocathode to accomplish bias-free overall water splitting. [11] Drawbacks of bare WO 3 are its chemical dissolution at pH>4,[12] as well as sluggish catalysis and poor selectivity. [13] The slow release of O 2 also allows competing side reactions, such as the generation of H 2 O 2 , to occur, which causes photodegradation of WO 3 .…”
mentioning
confidence: 99%
“…[6, 10] Although the valence band of WO 3 is not negative enough to achieve hydrogen evolution, it can be coupled with a photocathode to accomplish bias-free overall water splitting. [11] Drawbacks of bare WO 3 are its chemical dissolution at pH>4,[12] as well as sluggish catalysis and poor selectivity. [13] The slow release of O 2 also allows competing side reactions, such as the generation of H 2 O 2 , to occur, which causes photodegradation of WO 3 .…”
mentioning
confidence: 99%
“…Pt is however too scarce and costly for a largescale application. Thus, there is a growing interest to apply earthabundant and non-precious metal HER catalysts for PEC hydrogen production [11][12][13][14][15][16][17] .…”
mentioning
confidence: 99%
“…[11][12][13] The International Energy Agency identifi ed a key obstacle to the widespread implementation of water splitting technologies to be the development of cheap and active materials to catalyze both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), which operate under identical and mild conditions with high efficiency and stability. [ 14 ] The most active catalysts of the HER and OER contain precious metals: Pt and RuO 2 /IrO 2 , respectively, [15][16][17][18] but there is no real possibility to scale up these materials for global demand due to their scarcity.…”
mentioning
confidence: 99%