Challenges for photocatalytic overall water splitting

H2-production and electron-transfer mechanism of a noble-metal-free WO3@ZnIn2S4 S-scheme heterojunction photocatalyst

“…Converting solar energy into storable and clean hydrogen energy shows great potential in ameliorating the ever-growing energy crisis. [1][2][3][4][5][6][7][8][9][10] Since the pioneering work of photoelectrochemical water-splitting by Fujishima and Honda in 1972, 11 various semiconductors coupled with noble metals (Pt, Pd, Au, etc.) as cocatalysts have been reported for photocatalytic H 2 production since noble metals have a near zero Gibbs free energy change for H 2 evolution.…”

Graphdiyne-based photocatalysts for solar fuel production

“…Various carbon allotropes with sp 2 or sp 3 hybrid configurations have been found. [34][35][36][37] The undiscovered sp-hybridised carbon allotrope was mysterious until graphdiyne was synthesised using HEB by Li et al in 2010.…”

“…Energy is the basis for human survival and is one of the driving forces of social development. [1][2][3][4][5] At present, the global energy structure faces a transition from fossil energy to renewable energy. [6][7][8] Renewable solar energy is an essential source of other energies, such as wind, ocean, thermal and biomass energies.…”

Double Confinement Hydrogel Network Enables Continuously Regenerative Solar‐to‐Hydrogen Conversion

“…[24] Considering the two half-reactions of water splitting, that is, the hydrogen evolution and oxygen evolution reactions, it is challenging to accomplish both H 2 and O 2 productions in stoichiometric amount within a single soft catalyst system in which both cocatalysts are well integrated. [25]…”