Jian-Hua Qin

The development of large‐scale and low‐cost hydrogen production based on water splitting necessitates the design of well‐defined and highly adaptable catalytic materials. Advancements in synthesis strategies are crucial for the preparation of efficient catalysts and the understanding of underlying mechanisms. Here, a pyrolysis‐free strategy is present toward the directive assembly of cooperative coupling single cobalt atoms and fully exposed platinum nanoclusters as active sites. The catalysts possess dual functionality and high adaptability for overall saline electrolysis. As expected, both the electrode and the symmetric cell deliver good catalytic activity and stability. Additionally, the rational and controllable synthesis leads to comprehensive analysis, which reveals that the cooperative coupling between Pt‐Co sites can regulate the interaction between the intermediates and active centers to improve the activity, prevent the Cl ⁻ poisoning, and ensure the efficient selectivity. The catalytic performance has been well‐maintained in not only saline water, but also fluctuant and extreme concentrations of hydroxide. This work expedites the research progress and future deployment of rationally designed and efficient saline or seawater electrolyzers.

Porous architectures are generally important for chiral metal–organic frameworks (MOFs) to fulfill chiroptical properties of guests, while induced chirality of guest molecules by nonporous chiral MOFs remains rare. Herein, we demonstrate a case of applying a cocrystallization strategy to construct circularly polarized luminescence (CPL)-active host (nonporous MOFs)-guest hybrid systems. A pair of novel nonporous enantiomeric MOFs (L/D-CdMOF), are hydrothermally synthesized as chiral templates, exhibiting blue emission and chiroptical properties. By cocrystallization with achiral rhodamine 6G (R6G) through dye doping method, a pair of chiral assemblies (L/D-CdMOFÉR6G adducts) are obtained, showing bluish-white CPL with good g_lum values at the 10⁻³ level. Leveraging the processability of these cocrystallization-engineered hybrids, a bluish-white CPL-emitting diode is fabricated, and CPL-active inks are developed. These inks are used in photo-curing three-dimensional (3D) printing to create various chiral adduct-based agglomerates with bluish-white CPL, demonstrating multidimensional chirality engineering via additive manufacturing. This work offers a creative avenue for the development of bluish-white CPL materials and provides insights for advanced applications.

Atomically precise superatomic nanoclusters have attracted considerable interest due to their remarkable structures and intriguing photoluminescence properties. Nevertheless, achieving a high photoluminescence quantum yield (PLQY) in the near-infrared (NIR) region of superatomic nanoclusters continues to pose a considerable challenge. Here, we report a novel bimetallic nanocluster prepared utilizing an alloying strategy, formulated as [Ag₁₄Pd(PFBT)₆(TPP)₈](TPP) (abbreviated as Ag₁₄Pd). Notably, this cluster demonstrates a remarkable NIR emission, achieving a PLQY of 15% in the solid state, which is rare for metal nanoclusters. Both experimental and theoretical analyses indicate that Ag₁₄Pd exhibits a characteristic 8-electron superatomic structure with a 1S²1P⁶ electronic shell closure. Furthermore, due to their bright luminescence and exceptional photostability, Ag₁₄Pd clusters hold promising potential for applications as NIR inks for three-dimensional (3D) printing of various objects and models.

Presented here are the synthesis and gas-phase photocatalytic CO₂ reduction of an anionic porous Zn-metalated porphyrin metal-organic framework (MOF) induced by an ionic liquid. The desired CO₂ affinity and deep conduction band position of the MOF catalyst provide strong kinetic and thermodynamic advantages for photocatalytic CO₂ to CH₄ conversion with high selectivity (∼70%) in H₂O vapor.