journal article·2023-03-06Open access

Photo‐Electrochemical Glycerol Conversion over a Mie Scattering Effect Enhanced Porous BiVO 4 Photoanode

Cheng Lin, Chaoran Dong, Sungsoon Kim, Yuan Lu, Yulan Wang, Zhiyang Yu, Yu Gu, Zhiyuan Gu, Dong Ki Lee, Kan Zhang, Jong Hyeok Park

Abstract

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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Research context

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · Gas Sensing Nanomaterials and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094 P. R. China

Department of Chemical and Biomolecular Engineering Yonsei University 50 Yonsei‐ro Seodaemun‐gu Seoul 120‐749 Republic of Korea

College of Chemistry State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou University Fujian 350108 P. R. China

College of Physics and Optoelectronics Taiyuan University of Technology Taiyuan 030024 P. R. China

Department of Chemical and Biomolecular Engineering Yonsei‐KIST Convergence Research Institute Yonsei University Seoul 03722 Republic of Korea

Clean Energy Research Center (KIST) and Division of Energy and Environment Technology KIST School University of Science and Technology Seoul 02792 Republic of Korea

Graduate School of Energy and Environment Korea University Seoul 02841 Republic of Korea

Funding

National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities · National Research Foundation of Korea

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