Uniform-embeddable-distributed Ni₃S₂ cocatalyst inside and outside a sheet-like ZnIn₂S₄ photocatalyst for boosting photocatalytic hydrogen evolution

Abstract

The rational cocatalyst design has been considered as a significant route to boost the solar-energy conversion efficiency for photocatalytic H2 generation. However, the traditional cocatalyst-loading on the surface of a...

Recent Advances of Bimetallic Sulfides‐Based Nanomaterials for Photocatalytic Hydrogen Production

“…This research contributes to the rational construction of a ZnIn 2 S 4 -based cooperative photoredox-catalyzed system that enables efficient coproduction of value-added fine chemicals and clean fuels. Lin et al [88] designed an inner and outer nanoflake ZnIn 2 S 4 photocatalyst with uniformly embedded and distributed Ni 3 S 2 cocatalyst, forming a Ni 3 S 2 /ZnIn 2 S 4 binary metasystem (UEDNiS/ZIS), which achieved outstanding results with the optimal stoichiometric ratio of Zn and Ni elements (2:1). Importantly, even after three photocatalytic reactions, the UEDNiS/ZIS system maintains a high photocatalytic hydrogen release rate, indicating its remarkable stability in photocatalytic hydrogen production.…”

Tribocatalysis mechanisms: electron transfer and transition

“…The catalytic reaction performance is tuned by surface area, material components, as well as active crystalline surfaces. [55][56][57] In tribocatalysis, metal nanoparticles can promote carrier separation and transfer during friction; the porous structure can increase the friction area and thus increase the amounts of transferred electrons; increasing the number of active sites can promote the occurrence of redox reactions. There is also a wide scope for improving the performance of tribocatalysis by designing the surface morphology of tribocatalysts.…”

Rational Construction of Electrostatic Self‐Assembly of Metallike MoP and ZnIn2S4 Based on Density Functional Theory to Form Schottky Junction for Photocatalytic Hydrogen Production

“…As shown as Figure 10b, compared with ZnIn 2 S 4 , ZM-20% has the highest current density and the lowest hydrogen evolution overpotential, indicating that ZM-20% is the most favorable for hydrogen evolution reaction. [41,53,54] The electrontransfer resistance of ZnIn 2 S 4 and ZM-20% of the samples was analyzed by EIS. [55,56] As shown in Figure 10c, the large curvature radius of ZnIn 2 S 4 indicates that they have a large hindering effect on electron transfer.…”