· 논문명 : Fe-single-atom/Fe3C-decorated carbon nanotube electrocatalyst derived from modified Fe-ZIF-8

· 저   자 : Duc-Viet Nguyen, Jayasmita Jana, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur*

· 게재지 : Journal of Industrial and Engineering Chemistry (2025, 151, 365-376)

· 초록

In this study, Fe-single-atom-decorated carbon-nanotube-based electrocatalysts with small concentrations of Fe3C nanoparticles

(AOFA-20) were obtained by calculating Fe-ZIF-8 functionalized by 3-amino-1,2,4-triazole in a crucible cup without a cap. The 

as-synthesized AOFA-20 demonstrated outstanding ORR activity (E1/2 = 0.828V vs. RHE), surpassing 20 % Pt/C (0.808 V) in 0.1 M

KOH. It also exhibited superior long-term stability and methanol tolerance over commercial RuO2 and Pt/C. In practical zinc–air 

batteries, AOFA-20 achieved a narrowvoltage gap (1.19 V) and exceptional cycling stability (>560 hr), outperforming Pt/C– RuO2

(1.41 V, 65 hr). These findings highlight useful information for the development of AOFA-20 catalyst with abundant active sites 

for next-generation energy storage and conversion devices.