· 논문명 : Europium Oxide on Carbon Nitride for Electrocatalytic Glycerol Oxidation Coupled with Hydrogen

                Evolution Reaction

· 저   자 : Jayasmita Jana, Tata Sanjay Kanna Sharma, Mohamed A. Ghanem, Won Mook Choi,

               Chinnakonda S. Gopinath, Seung Hyun Hur*

· 게재지 : Separation and Purification Technology (2025, 372, 133442)

· 초록

The integration of the electrochemical glycerol oxidation reaction (GOR) with the hydrogen evolution reaction (HER) has emerged 

as a promising alternative to the sluggish oxygen evolution reaction (OER) in water splitting toward the development of renewable

and clean energy sources. However, suitable electrodes that facilitate redox kinetics while increasing the selectivity of the desired

product(s) are still required. Herein, a series of europium oxide (Eu2O3) anchored on graphitic carbon nitride (g-CN) nanoaggregates

(g-CNEux, x = 1, 5, and 10) with different Eu contents were synthesized for electrolysis of water and glycerol. g-CNEu1 showed 

the lowest overpotentials for the respective redox reactions of water splitting and GOR indicating its multifunctional activities with

longtime stability. Moreover, GOR coupled HER showed faster kinetics over water splitting due to facile counter anode reactions with

16 mV lower overpotential to reach 100 mA cm-2 current density. The prepared electrocatalysts exhibited superior activity toward

C–C bond cleavage, achieving formate production selectively in the GOR (79.8 % over 12 h at 1.4 V) among the C1-C3 products