Doping Effect of Cobalt Ions Incorporated into NaTaO<sub>3</sub>Nanocrystalline

Lv, Juan; Liu, Yu Lu; Su, Yi Guo; Chai, Zhan Li; Wang, Xiao Jing

doi:10.1080/10584587.2015.1045391

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…It is wildly known that the ion radius of cobalt is larger than that of aluminum. Therefore, one possible explanation for this phenomenon was that the cobalt ion was anchored to the lattice of Al 2 O 3 support and caused lattice expansion. , Unlike WO 3 , Al 2 O 3 and SiO 2 showed aggregative morphologies of small nanoparticles (Figures S4a and S5a). After loading cobalt species, 1Co/Al and 1Co/Si maintained the aggregative morphologies (Figures S4b and S5b).…”

Section: Resultsmentioning

confidence: 99%

Visible-Light Driven CO₂ Reduction to CO by Co₃O₄ Supported on Tungsten Oxide

et al. 2022

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The exploration of support effect and interface effect on a homogeneous–heterogeneous hybrid CO2 reduction photocatalytic system is deficient. Herein, we constructed oxides (WO3, Al2O3, SiO2, TiO2, and CuO) supported Co-based photocatalysts via an incipient wetness impregnation method for visible-light driven CO2 reduction with the assistance of a photosensitizer ([Ru(bpy)3]Cl2) and a sacrificial electron donor (triethanolamine) under mild conditions. Among them, the WO3 supported Co-based photocatalyst (named 1Co/W) exhibited the highest CO generation rate (29.34 μmol h–1) with 81% selectivity and 0.73% apparent quantum yield. Moreover, the unit mass activity of surface Co components was up to 296.35 mmol gCo –1 h–1. Experimental studies and characterization analyses indicated that the superior photocatalytic performance of 1Co/W benefited from the following aspects: (1) the well-matched band structure between 1Co/W and the photosensitizer for charge transfer and the suitable conduction band position for CO2 conversion; (2) the tight interface structure between surface Co active species and WO3 support accelerating the carrier migration kinetics and providing efficient cobalt active sites for CO2 adsorption and activation; and (3) the dispersion and stabilization effect of WO3 on surface Co active species.

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Section: Resultsmentioning

confidence: 99%