材料科学
米氏散射
多孔介质
光散射
多孔性
电化学
光电子学
化学工程
纳米技术
散射
甘油
电极
光学
复合材料
有机化学
化学
物理
物理化学
工程类
作者
Cheng Lin,Chaoran Dong,Sungsoon Kim,Yuan Lü,Yulan Wang,Zhiyang Yu,Yu Gu,Zhiyuan Gu,Dong Ki Lee,Kan Zhang,Jong Hyeok Park
标识
DOI:10.1002/adma.202209955
摘要
The photo-electrochemical (PEC) oxidation of glycerol (GLY) to high-value-added dihydroxyacetone (DHA) can be achieved over a BiVO4 photoanode, while the PEC performance of most BiVO4 photoanodes is impeded due to the upper limits of the photocurrent density. Here, an enhanced Mie scattering effect of the well-documented porous BiVO4 photoanode is obtained with less effort by a simple annealing process, which significantly reduces the reflectivity to near zero. The great light absorbability increases the basic photocurrent density by 1.77 times. The selective oxidation of GLY over the BiVO4 photoanode results in a photocurrent density of 6.04 mA cm−2 and a DHA production rate of 325.2 mmol m−2 h−1 that exceeds all reported values. This work addresses the poor ability of nanostructured BiVO4 to harvest light, paving the way for further improvements in charge transport and transfer to realize highly efficient PEC conversion.
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