School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore.
College of Chemistry and Molecular Engineering, Zhengzhou University, Henan, 450001, P. R. China.
Adv Mater. 2019 Oct;31(41):e1903404. doi: 10.1002/adma.201903404. Epub 2019 Jul 25.
Ultrathin ZnIn S nanosheets (NSs) are grown on Co/N-doped graphitic carbon (NGC) nanocages, composed of Co nanoparticles surrounded by few-layered NGC, to obtain hierarchical Co/NGC@ZnIn S hollow heterostructures for photocatalytic H generation with visible light. The photoredox functions of discrete Co, conductive NGC, and ZnIn S NSs are precisely combined into hierarchical composite cages possessing strongly hybridized shell and ultrathin layered substructures. Such structural and compositional virtues can expedite charge separation and mobility, offer large surface area and abundant reactive sites for water photosplitting. The Co/NGC@ZnIn S photocatalyst exhibits outstanding H evolution activity (e.g., 11270 µmol h g ) and high stability without engaging any cocatalyst.
超薄的 ZnIn S 纳米片 (NSs) 生长在 Co/N 掺杂的石墨碳 (NGC) 纳米笼上，由被少层 NGC 包围的 Co 纳米颗粒组成，以获得用于光催化 H 生成的具有可见光响应的分级 Co/NGC@ZnIn S 空心异质结构。离散的 Co、导电的 NGC 和 ZnIn S NSs 的光氧化还原功能被精确地结合到具有强杂化壳和超薄层状亚结构的分级复合笼中。这种结构和组成的优点可以促进电荷分离和迁移，提供大的表面积和丰富的用于水光解的反应活性位。Co/NGC@ZnIn S 光催化剂在不使用任何助催化剂的情况下表现出优异的 H 生成活性（例如，11270 µmol h g ）和高稳定性。
