Co-doped Mo-Mo2C cocatalyst for enhanced g-C3N4 photocatalytic H2 evolution

Boosting Visible‐Light‐Driven H2 Evolution of Covalent Triazine Framework from Water by Modifying Ni(II) Pyrimidine‐2‐thiolate Cocatalyst

“…But the binding energies of S 2p (Figure 2f) in [Ni(pymt) 2 ] n /CTF‐HC2 exhibit a slightly positive shift of 0.2–0.9 eV compared with the corresponding S atoms in pure [Ni(pymt) 2 ] n . These changes of XPS spectra suggest a weak interaction between [Ni(pymt) 2 ] n and the CTF‐HC2 backbone, which can enhance the electrons transmission between two phases [75–77] . In Figure 2f, the broad peak centered at 168.1 eV is attributed to unexhausted DMSO molecule [73,78] …”

A Tandem 0D/2D/2D NbS2 Quantum Dot/Nb2O5 Nanosheet/g‐C3N4 Flake System with Spatial Charge–Transfer Cascades for Boosting Photocatalytic Hydrogen Evolution

“…As displayed in Figure 4c, the AQE of NSNOCN at 380 ± 10 nm can reach 18.4%, and the AQE at 420 ± 10 nm is as high as 10.8%, far outperforming many g-C 3 N 4 -based photocatalysts including using noble-metal Pt as the cocatalyst in previous reports. [9,[32][33][34][35][36] The cycling stability of H 2 production for NSNOCN was investigated. As shown in Figure 4d, NSNOCN displays a negligible photoactivity loss after seven cycling tests, suggesting excellent stability, as evidenced by the XRD patterns in Figure S7a (Supporting Information), where the XRD patterns of fresh NSNOCN and recycled NSNOCN show no obvious differences.…”

“…In terms of the design of tandem ternary C/B/A typed system, 2D metal-free graphitic carbon nitride (g-C 3 N 4 ) is an ideal candidate acted as the photocatalyst A, due to its outstanding thermal and chemical stability, fascinating electronic and optical properties, suitable band structure for photocatalytic H 2 generation and easily synthetic process. [8,9] On this basis, in the second step of the design of the tandem C/B/A system, the construction of 2D/2D g-C 3 N 4 -based B/A-typed heterojunctions is an attractive option. Such 2D/2D heterojunctions can provide large intimate contact interfaces to benefit exciton dissociation, charge transfer and the enhancement of catalyst stability.…”

Hierarchical CuCo2S4 Nanoflake Arrays Grown on Carbon Cloth: A Remarkable Bifunctional Electrocatalyst for Overall Water Splitting

“…[11] Therefore, developing earth-abundant and low-cost transition metal compounds (oxides, sulfides, carbides, and phosphides) has become urgent. [12][13][14][15][16] However, it is not advisable to simply develop HER or OER electrocatalyst and ignore the development of bifunctional catalysts. [17][18] From practical application, fabricating bifunctional electrode materials combining both the remarkable HER and OER performance has become the promise approach to resolve the issues in this field.…”

“…While these noble metals are high cost and rare, which greatly hamper their practical applications [11] . Therefore, developing earth‐abundant and low‐cost transition metal compounds (oxides, sulfides, carbides, and phosphides) has become urgent [12–16] . However, it is not advisable to simply develop HER or OER electrocatalyst and ignore the development of bifunctional catalysts [17–18] .…”