Solar-driven Highly Selective Conversion of Glycerol to Dihydroxyacetone Using Surface Atom Engineered BiVO Photoanodes

Overview

Journal Nat Commun

Specialty Biology

Date 2024 Jun 28

PMID 38942757

Authors

Yuan Lu

Byoung Guan Lee

Cheng Lin

Tae-Kyung Liu

Zhipeng Wang

Jiaming Miao

Sang Ho Oh

Ki Chul Kim

Kan Zhang

Jong Hyeok Park

Affiliations

Soon will be listed here.

Abstract

Dihydroxyacetone is the most desired product in glycerol oxidation reaction because of its highest added value and large market demand among all possible oxidation products. However, selectively oxidative secondary hydroxyl groups of glycerol for highly efficient dihydroxyacetone production still poses a challenge. In this study, we engineer the surface of BiVO by introducing bismuth-rich domains and oxygen vacancies (Bi-rich BiVO) to systematically modulate the surface adsorption of secondary hydroxyl groups and enhance photo-induced charge separation for photoelectrochemical glycerol oxidation into dihydroxyacetone conversion. As a result, the Bi-rich BiVO increases the glycerol oxidation photocurrent density of BiVO from 1.42 to 4.26 mA cm at 1.23 V vs. reversible hydrogen electrode under AM 1.5 G illumination, as well as the dihydroxyacetone selectivity from 54.0% to 80.3%, finally achieving a dihydroxyacetone production rate of 361.9 mmol m h that outperforms all reported values. The surface atom customization opens a way to regulate the solar-driven organic transformation pathway toward a carbon chain-balanced product.

Citing Articles

Surface fluorination of BiVO for the photoelectrochemical oxidation of glycerol to formic acid.

Liu Y, Shang H, Zhang B, Yan D, Xiang X Nat Commun. 2024; 15(1):8155.

PMID: 39289360 PMC: 11408720. DOI: 10.1038/s41467-024-52161-4.

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