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MAPK x p53	1

Effective immobilization and catalytic conversion of lithium polysulfides (LiPSs) are crucial for enhancing lithium-sulfur (Li-S) battery performance. To this end, a hybrid CoSe₂-Co₃O₄-Se@CNTs electrocatalyst was rationally designed, wherein Co₃O₄ and CoSe₂ synergistically promote LiPS adsorption and catalytic transformation, while CNTs provide a conductive framework to enhance sulfur utilization. Notably, the often-overlooked role of selenium was elucidated via in situ X-ray diffraction pattern revealing its active participation in charge-discharge reactions, which contributes to the stable cycling performance of Li-S batteries. As a result, Li-S cells incorporating a CoSe₂-Co₃O₄-Se@CNTs-modified separator achieve a high discharge capacity of 1,412 mAh g^-1 at 0.1 C with 71 % capacity retention after 400 cycles. At 0.5 C, 76 % of the initial capacity (1,243 mAh g^-1) is retained after 500 cycles, while at 1 C, 70 % of the initial capacity (836 mAh g^-1) is maintained over 550 cycles, corresponding to an exceptionally low decay rate of 0.053 % per cycle. This study highlights the synergistic role of CoSe₂-Co₃O₄-Se@CNTs and Se in LiPS immobilization and catalysis, providing a promising strategy for designing high-performance electrocatalysts to extend the lifespan of Li-S batteries.

01 Sep 2025·Journal of Colloid and Interface Science

Engineering cobalt phosphide with anion vacancy and carbon shell for kinetically enhanced lithium-sulfur batteries

Article

Author: Han, Jingui ; Wang, Han ; Tao, Ye ; Chen, Baihui ; Zhang, Lirong ; Zhang, Xitian ; Wu, Lili ; Wang, Di ; Ma, Xinzhi

The widespread adoption of lithium-Sulfur (Li-S) batteries is significantly hindered by the well-known "shuttle effect" and the sluggish conversion kinetics of sulfur species. In this study, cobalt phosphide (CoP) nanoparticles are engineered with phosphorus vacancies (P_v) and a carbon shell (CoP_v@C) to effectively anchor polysulfides (LiPSs) and promote their conversion. The introduction of P_v notably enhances the binding energy between CoP and LiPSs, facilitating the subsequent cleavage of the SS bond in the Li₂S₆ molecule. The carbon shell further aids in the chemical adsorption of LiPSs by generating a space charge region, while simultaneously shielding CoP nanoparticles from direct exposure to oxidative conditions during charge/discharge cycles. On the surface of CoP_v@C nanofibers, the nucleation of Li₂S exhibits rapid liquid-solid conversion dynamics, adhering to a three-dimensional progressive nucleation model. Consequently, in our case, Li-S batteries assembled with CoP_v@C-modified separators exhibit an initial capacity of 1,536 mAh g^-1 at 0.1 C. Significantly, Li-S batteries can afford 4 C discharge/charge along with a superior 0.019 % decline rate. These findings position CoP_v@C nanofibers as a promising material for advanced Li-S batteries and offer novel insights into the design of electrocatalysts and separator engineering for high-performance Li-S batteries.

01 Sep 2025·Fuel

High-energy-level electron injection in ZnWO4/ZnO photocatalysts for efficient methane-to-methanol conversion

Author: Liu, Yanduo ; Dong, Xianglan ; Zhang, Enqi ; Dai, Lina

Against the backdrop of global energy and environmental challenges, research on the photocatalytic conversion of methane to methanol has made significant progress.ZnO photocatalyst, despite its many advantages, suffers from rapid recombination of photogenerated electrons and holes in single ZnO, leading to low charge separation efficiency and thus limiting the solar energy conversion efficiency.The mixed-crystal heterostructure formed by ZnO and ZnWO₄ significantly improves photocatalytic efficiency by effectively separating and utilizing high-energy-level electrons.The conduction band of ZnWO₄ serves as an ideal "bridge" for the high-energy-level electrons generated on ZnO, enabling these electrons to quickly transfer to the conduction band of ZnWO₄, thus avoiding rapid relaxation and recombination within the conduction band of ZnO.The optimal sample achieved a methanol yield of 72 μmol/g/h, with a total carbonyl compound yield near 100 μmol/g/h, accounting for 97 % of the entire product system.This opens new avenues in the field and provides a model for the development of related composite photocatalysts, offering hope for significant breakthroughs and progress in energy conversion and utilization.

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Pipeline

Pipeline Snapshot as of 21 Dec 2025

The statistics for drugs in the Pipeline is the current organization and its subsidiaries are counted as organizations,Early Phase 1 is incorporated into Phase 1, Phase 1/2 is incorporated into phase 2, and phase 2/3 is incorporated into phase 3

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