Heterogeneous‐Interface‐Enhanced Adsorption of Organic and Hydroxyl for Biomass Electrooxidation

• DOI: 10.1002/adma.202204089
• Publication Date: 2022-08-29T12:45:03Z
• Authors: Peng Zhou; Xingshuai Lv; Shasha Tao; Jingcheng Wu; Hongfang Wang; Xiaoxiao Wei; Tehua Wang; Bo Zhou; Yuxuan Lu; Thomas Frauenheim; Xianzhu Fu; Shuangyin Wang; Yuqin Zou
• Keywords: Zeta potential

Electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) provides an efficient way to obtain high-value-added biomass-derived chemicals. Compared with other transition metal oxides, CuO exhibits poor oxygen evolution reaction performance, leading high Faraday efficiency for HMF oxidation. However, the weak adsorption and activation ability OH- species restricts its further development. Herein, CuO-PdO heterogeneous interface is successfully constructed, resulting in advanced onset-potential (HMFOR), a higher current density than CuO. The results open-circuit potential, situ infrared spectroscopy, theoretical calculations indicate that introduction PdO enhances capacity organic molecule. Meanwhile, promotes species, as demonstrated by zeta potential electrochemical measurements. This work elucidates enhancement mechanism interfaces constructive guidance designing multicomponent electrocatalysts electrocatalytic reactions.