Incorporating Ordered Indium Sites into Rhodium for Ultra-Low Potential Electrocatalytic Conversion of Ethylene Glycol to Glycolic Acid

Incorporating Ordered Indium Sites into Rhodium for Ultra-Low Potential Electrocatalytic Conversion of Ethylene Glycol to Glycolic Acid

© 2025 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 37(2025), 14 vom: 07. Apr., Seite e2418959
1. Verfasser: He, Caihong (VerfasserIn)
Weitere Verfasser: Yan, Yifan, Fu, Yu, Ma, Chaoqun, Xia, Jing, Han, Sumei, Zhang, Huaifang, Ma, Xiao, Lin, Gang, Feng, Fukai, Meng, Xiangmin, Cao, Wenbin, Zhu, Lijie, Li, Zhenhua, Lu, Qipeng
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2025
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article bifunctional catalysts ethylene glycol electrooxidation hydrogen evolution intermetallic compounds
Beschreibung
Zusammenfassung:© 2025 Wiley‐VCH GmbH.
The upcycling of polyethylene terephthalate (PET)-derived ethylene glycol (EG) to glycolic acid (GA, a biodegradable polymer monomer) via electrocatalysis not only produces valuable chemicals but also mitigates plastic pollution. However, the current reports for electrooxidation of EG-to-GA usually operate at reaction potentials of >1.0 V vs reversible hydrogen electrode (RHE), much higher than the theoretical potential (0.065 V vs RHE), resulting in substantial energy wastage. Herein, body-centered cubic RhIn intermetallic compounds (IMCs) anchored on carbon support (denoted as RhIn/C) are synthesized, which shows excellent performance for the EG-to-GA with an onset potential of only 0.35 V vs RHE, lower than the values reported in current literature. The catalyst also possesses satisfactory GA selectivity (85% at 0.65 V vs RHE). Experimental results combined with density functional theory calculations demonstrate that RhIn IMCs enhance the adsorption of EG and OH-, facilitating the generation of reactive oxygen species and thereby improving catalytic performance. RhIn/C also exhibits excellent electrocatalytic performance for hydrogen evolution reaction, ensuring that it can be used as a bifunctional catalyst in the two-electrode system for EG electrooxidation coupled with hydrogen production. This work opens new avenues for reducing the energy consumption of electrocatalytic upcycling of PET-derived EG and clean energy production
Beschreibung:Date Revised 10.04.2025
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1521-4095
DOI:10.1002/adma.202418959