Selective photoelectrochemical oxidation of glycerol to high value-added dihydroxyacetone

Dong Liu, Jin-Cheng Liu, Weizheng Cai, Jun Ma, Hong Bin Yang, Hai Xiao (), Jun Li, Yujie Xiong (), Yanqiang Huang and Bin Liu ()
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Dong Liu: Nanyang Technological University
Jin-Cheng Liu: Tsinghua University
Weizheng Cai: Nanyang Technological University
Jun Ma: University of Science and Technology of China
Hong Bin Yang: Nanyang Technological University
Hai Xiao: Tsinghua University
Jun Li: Tsinghua University
Yujie Xiong: University of Science and Technology of China
Yanqiang Huang: Chinese Academy of Sciences
Bin Liu: Nanyang Technological University

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract It is highly profitable to transform glycerol – the main by-product from biodiesel production to high value-added chemicals. In this work, we develop a photoelectrochemical system based on nanoporous BiVO4 for selective oxidation of glycerol to 1,3-dihydroxyacetone – one of the most valuable derivatives of glycerol. Under AM 1.5G front illumination (100 mW cm−2) in an acidic medium (pH = 2) without adscititious oxidant, the nanoporous BiVO4 photoanode achieves a glycerol oxidation photocurrent density of 3.7 mA cm−2 at a potential of 1.2 V versus RHE with 51% 1,3-dihydroxyacetone selectivity, equivalent to a production rate of 200 mmol of 1,3-dihydroxyacetone per m2 of illumination area in one hour.

Date: 2019
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DOI: 10.1038/s41467-019-09788-5

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