Boosting photocatalytic overall water splitting over single-layer graphene coated metal cocatalyst

A unique octadecahedron SrTiO3 perovskite oxide with a nano step-shaped facet structure for enhanced photoredox and hydrogen evolution performance

“…To overcome this drawback and improve its photocatalytic performance, a variety of strategies have been employed such as building heterojunctions, hybridizing with carbon-based materials, and so on. 4,5 Nevertheless, the concept of shape-controlled morphologies is regarded as a more effective way among these strategies.…”

Ni Coated with N-doped Graphene Layer as Active and Stable H2 Evolution Cocatalysts for Photocatalytic Overall Water Splitting

“…15−18 It has been indicated that a graphene layer can be used to inhibit the reverse reaction over Pt and improve photocatalyst stability by protecting Cu from oxidation. 19,20 The potential of this strategy inspired us to explore the structure of Ni@C to develop stable Ni-based photocatalysts. The maintenance or even strengthening of the photocatalytic HER performance of Ni after coating is another important aspect to deliberate.…”

“…In regard to durability, a number of recent research articles has shown that the carbon encapsulation of nanoparticles (NPs) can considerably improve their long-term stability in harsh reaction conditions for electrochemical reactions. − It has been indicated that a graphene layer can be used to inhibit the reverse reaction over Pt and improve photocatalyst stability by protecting Cu from oxidation. , The potential of this strategy inspired us to explore the structure of Ni@C to develop stable Ni-based photocatalysts. The maintenance or even strengthening of the photocatalytic HER performance of Ni after coating is another important aspect to deliberate.…”

Shield Effect in Palladium@Graphene with Stability in Strong Acid and Sluggish H-Dissociation for Robust Coupling Hydrogenation–Bamberger Rearrangement of Nitrobenzene

“…24−29 The catalytic hydrogenation could be significantly influenced by the surface electronic architecture of graphite carbon, which could potentially depend on the type and ratio of encapsulated metal NPs. 26,28,30 Additionally, catalysts with an amorphous structure could usually offer more unsaturated atoms as effective active sites, which would be beneficial for increasing the catalytic activity. 31 Analogously, it was widely demonstrated that the heteroatom (e.g., B, N, P, and S)-dopedgraphite materials obtained enormous defect sites over the surface, which often reconstituted the electron, physical and chemical characteristics, facilitating the increase in catalytic performance.…”

“…The development of Pd-based catalysts for hydrogenation of NB to PAP has been intensively probed due to their excellent intrinsic activities for the reduction of nitro groups. − However, the poor stability and low abundance of noble metals suppress the extensive application of Pd-based catalysts. Herein, a large number of works have indicated that the graphite-shell encapsulated Pd nanoparticles (NPs) structure could hinder the inner metal poisoning and simultaneously activate the catalytic performance of inert graphite carbon due to the electronic transmission from the metal NP core. − The catalytic hydrogenation could be significantly influenced by the surface electronic architecture of graphite carbon, which could potentially depend on the type and ratio of encapsulated metal NPs. ,, Additionally, catalysts with an amorphous structure could usually offer more unsaturated atoms as effective active sites, which would be beneficial for increasing the catalytic activity . Analogously, it was widely demonstrated that the heteroatom (e.g., B, N, P, and S)-doped-graphite materials obtained enormous defect sites over the surface, which often reconstituted the electron, physical and chemical characteristics, facilitating the increase in catalytic performance .…”