Shuijin Lei

Ce-doped Bi ₃ TiNbO ₉ achieves boosted H ₂ O ₂ production via spin-polarized ferroelectric photocatalysis, first demonstrating 4f-mediated ferroelectric-spin synergy that overcomes bulk charge recombination and spin-forbidden surface kinetics.

An S-scheme heterojunction of photoresponsive high-entropy FeCoNiMnZnCrO _x with TiO ₂ enables charge transfer and kinetics in Li–O ₂ batteries, with entropy, covalency, and heterointerface giving dark performance and light boosting photocatalysis.

Sodium‐ion batteries (SIBs) face challenges from sluggish kinetics and volume expansion due to the large Na ⁺ radius. Herein, we design a carbon‐coated porous NiSe/SnSe@NC Schottky heterojunction via in‐situ synthesis. The epitaxial growth ensures lattice matching, establishing a built‐in electric field from semi‐metallic NiSe to p‐type SnSe that accelerates electron/Na ⁺ separation and migration, reducing the diffusion barrier and boosting redox kinetics. The NC‐derived carbon layer enhances structural stability and conductivity. Leveraging the strong photoresponse of SnSe, the Schottky junction generates photovoltage under visible light, providing additional driving force for Na ⁺ transport and enabling light‐enhanced capacity. The anode retains 453.7 mAh g ⁻¹ after 1800 cycles at 5 A g ⁻¹ , and illumination yields up to 10.01% capacity enhancement. This study synergistically combines heterointerface engineering, surface passivation, and the photoelectric effect, offering a pathway for high‐capacity, ultra‐stable SIB anodes with light‐assisted enhancement.

Transition metal phosphosulfides (TMPs) are compelling anode candidates for sodium‐ion batteries thanks to their distinctive layered structure and outstanding electrochemical properties, yet facing significant intrinsic challenges including poor electronic conductivity and severe structural degradation. To address these issues, we demonstrate the construction of yolk‐double‐shell ZnPS ₃ /N‐doped carbon@carbon (ZnPS ₃ /NC@C) polyhedra through a Kirkendall‐effect‐mediated tannic acid (TA) etching strategy using a resorcinol‐formaldehyde (RF) coated ZIF‐8 precursor. This rationally designed architecture confers several synergistic advantages: (i) the N‐doped carbon matrix derived from ZIF‐8/TA‐Zn and the carbon shell from RF form a continuous conductive network, facilitating rapid charge transfer; (ii) the yolk‐double‐shell framework with ample internal void space effectively accommodates the volume variations, preserving structural integrity; and (iii) the outer carbon shell serves as a physical barrier against polysulfide dissolution, enhancing reaction reversibility. Benefiting from this multi‐synergistic engineering, the novel ZnPS ₃ /NC@C anode exhibits impressive sodium storage performance, delivering a high charge/discharge capacity of 925.7/1128.9 mAh g ⁻¹ at 0.1 A g ⁻¹ , along with a remarkable long‐term cyclability with 96.9% capacity retention over 2000 cycles at 2.0 A g ⁻¹ . This work establishes a generalizable design paradigm integrating morphological manipulation with multi‐component compositing for developing advanced electrode materials.

Metal thiophosphites (MPS ₃ ) hold great promise as anode materials for sodium‐ion batteries (SIBs) owing to their unique layered structure and high specific capacity. However, conventional top‐down exfoliation methods struggle to reduce the lateral dimensions of MPS ₃ , limiting the exposure of active edge sites and hindering ion transport kinetics. Herein, we demonstrate a novel synthesis strategy that leverages alkali‐ion intercalation to drive a 2D‐to‐1D morphological transformation of CdPS ₃ , markedly enhancing sodium storage performance. This is achieved through a two‐step alkali‐ion intercalation/exchange process, where K ⁺ intercalation first shears CdPS ₃ nanosheets into K _{2 x} Cd _{1– x} PS ₃ nanolaths, followed by Na ⁺ exchange to yield the final Na _{2 x} Cd _{1– x} PS ₃ product. The 2D‐to‐1D morphological transformation endows the Na _{2 x} Cd _{1– x} PS ₃ material with a synergistic combination of advantages: an 81.5% expansion in interlayer spacing (from 0.65 nm to 1.18 nm) that facilitates rapid ion diffusion, a high‐aspect‐ratio 1D morphology that offers abundant active edge sites and efficient electron pathways, and the introduction of Cd vacancies that boost electronic conductivity. Consequently, the fabricated Na _{2 x} Cd _{1– x} PS ₃ anode delivers superior specific capacity, rate capability, and cycling stability. This work demonstrates alkali‐ion intercalation as a powerful tool for the precise morphological engineering of layered materials, offering a generalized paradigm for designing high‐performance electrode materials.

Photocatalytic H ₂ O ₂ production coupled with selective oxidation of benzyl alcohol represents a highly attractive yet challenging “one‐stone‐two‐birds” strategy for sustainable chemical synthesis. The major obstacles lie in the difficulty of synchronizing spatial charge separation, preserving high redox potentials, and precisely steering the reaction pathways. Herein, a novel hollow ZnCdS/CuInS ₂ S‐scheme heterojunction is constructed through solid‐solution band engineering. This multifunctional design integrates three synergistic effects to break the above limitations: (i) rapid charge separation driven by S‐scheme heterojunction while retaining strong redox capability; (ii) broad‐band light harvesting and photothermal effect facilitated by hollow nanobox architecture; (iii) ideal reaction kinetics and thermodynamics optimized by photothermal temperature rise. The developed catalyst achieves remarkable co‐production rates under full‐spectrum irradiation: 3052.5 µmol g ⁻¹ h ⁻¹ for H ₂ O ₂ and 5211.6 µmol g ⁻¹ h ⁻¹ for benzaldehyde, with nearly 100% selectivity for benzaldehyde. It is unraveled that the photothermal‐induced moderate local heating triggers a controllable homolysis of H ₂ O ₂ , generating a favorable concentration of hydroxyl radicals. This process enables precise activation of the C─H bonds in benzyl alcohol while suppressing unwanted over‐oxidation pathways. This work establishes a paradigm for advanced photocatalytic coupling systems, where charge‐separation engineering and photothermal‐microenvironment regulation act in concert to promote efficient and selective solar‐to‐chemical conversions.