Solvent-Driven Precise Control of Stacking Configurations in Covalent Organic Frameworks for High-Efficiency Photocatalysis.

Two-dimensional covalent organic frameworks (2D COFs) have emerged as promising photocatalysts due to their high surface areas and precisely tunable physicochemical properties. However, it remains a significant challenge to precisely control over interlayer stacking configurations in 2D COFs, which critically influence charge carrier transport and consequently determine catalytic efficiency. In this study, we demonstrate a solvent-driven strategy to precisely regulate the interlayer stacking configurations of metal-incorporated 2D COFs, successfully achieving both AA eclipsed (COF-TD-AA) and ABC staggered (COF-TD-ABC) configurations.

Noble metal confined in defect-enriched NiCoO with synergistic effects for boosting alkaline electrocatalytic oxygen evolution.

Achieving a balance between catalytic activity and economic benefit is crucial for water-splitting reactions, which can be addressed by low loading and high dispersion of noble metals on catalytic supports. However, preventing the thermodynamic-driven agglomeration of noble metals during reaction remains a formidable challenge. Herein, we demonstrate a novel oxygen vacancy confinement strategy to enhance the activity and stability of noble metals in defect-rich M/NiCoO (M = Ru, Pd, Pt and Ag) catalysts.

Tunable optical forces enhanced by plasmonic modes hybridization in optical trapping of gold nanorods with plasmonic nanocavity.

The optomechanical interaction between a plasmonic nanocavity and a gold nanorod through optical forces is demonstrated. It is revealed that strong localized plasmon resonance mode hybridization induced by a gold nanorod results in the resonance mode of the nanocavity splitting into two different plasmon resonance modes (bonding plasmon resonance mode and antibonding plasmon resonance mode). When the whole system (gold nanorod and gold nanocavity) is excited at the antibonding plasmon mode, the gold nanorod can receive an optical pushing force and be pushed away from the gold nanocavity.