Themed collection Blue and Green Hydrogen Production & Storage

The recent progress in visible light driven photocatalysis by describing the integration of TiO₂ with variety of materials, and how it helps in tailoring electronic, structural and optical properties towards improved solar H₂ production activity.

This review offers a comprehensive depiction of g-C₃N₄-based materials for PEC water splitting. The fundamentals of PEC water splitting, along with the applications of g-C₃N₄-based materials as photoanodic and photocathodic materials are discussed.

The isosteric heat of absorption validates the role of PSiNWs in thermodynamically tuning LiH and suggests 400 °C as the optimal temperature for cyclic hydrogen storage. The hydrogen uptake capacity is 3.95 wt% at ∼4 MPa and 400 °C.

Plasmonic metal nanoparticle integrated mesoporous TiO₂ nanocomposites (Ag/TiO₂, Cu/TiO₂ and Ag–Cu/TiO₂), prepared by a simple chemical reduction method, have been demonstrated to show superior activity in thin-film form for solar H₂ generation.

Photoelectrochemical (PEC) water splitting is a promising way to produce green hydrogen. Finding a stable photocathode is important to the development of (PEC) water splitting. This work aims to use scrap brass alloy as a stable photocathode.

Using the split-operator method to simulate wave propagation, it is possible to calculate the hole flux to the surface in hematite OER catalysis. The flux can then be translated to photocurrent to predict the dependence of voltage on photocurrent.

Assessment of the current and future cost of reliable green hydrogen production, accounting for the inter- and intra-annual variability of solar and wind renewables, using 20 years of hourly resolution from 1140 grid points worldwide.

We model a novel industrial blue hydrogen production process, the industrial sorption enhanced autothermal membrane (ISEAM) process, with the potential to produce constant fuel cell grade hydrogen with 99.99% purity, regardless of upstream process upsets

The engineering of a pentlandite (Fe₃Co₃Ni₃S₈, FCNS) doped with silicon (FCNSSi) for water splitting is demonstrated. At 500 mA cm⁻², a two-electrode zero-gap cell assembly demonstrates the FCNSSi catalyst's promise for practical applications.

The photocatalytic hydrogen-evolution activity of hydrophilic Pt nanocluster-loaded SrTiO₃:Rh was improved to 30% compared to that prepared by the conventional method.

Catalytic activity for HER and OER of SAC made by TM atoms embedded in COF were investigated. They often form stable unconventional intermediates, and these species can be more stable than classical HER and OER adducts.