Defect-Rich Co(OH)2 Induced by Carbon Dots for Oxygen Evolution Reaction DOI Open Access
Xuan Han,

Chao Guo,

Hui Wang

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 219 - 219

Published: Feb. 26, 2025

Hydrogen production from water electrolysis offers a highly promising and sustainable route to solve the energy crisis. However, it is severely limited by sluggish kinetics of oxygen evolution reaction (OER) occurring on anode. Herein, employing carbon dots functionalized with benzene sulfonate groups (BS-CDs) as distinctive inductor, Co(OH)2 catalyst featuring abundant defects was synthesized for an enhanced OER. The hydrophilic nature BS-CDs exerts significant interfacial induction effect growth dynamics Co(OH)2, fostering formation elevated crystal substantial quantity vacancies. resulting BS-CDs/Co(OH)2 requires overpotential only 340 mV achieve current density 10 mA cm−2 in alkaline media, demonstrating markedly improved OER activity compared pristine N-CDs/Co(OH)2 induced amine-modified CDs. Furthermore, structural integrity maintained, retention rate 92% observed following 20 h stability assessment. This work provides novel approach developing cost-effective transition metal catalysts that exhibit exceptional catalytic efficiency excellent

Language: Английский

Defect-Rich Co(OH)2 Induced by Carbon Dots for Oxygen Evolution Reaction DOI Open Access
Xuan Han,

Chao Guo,

Hui Wang

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 219 - 219

Published: Feb. 26, 2025

Hydrogen production from water electrolysis offers a highly promising and sustainable route to solve the energy crisis. However, it is severely limited by sluggish kinetics of oxygen evolution reaction (OER) occurring on anode. Herein, employing carbon dots functionalized with benzene sulfonate groups (BS-CDs) as distinctive inductor, Co(OH)2 catalyst featuring abundant defects was synthesized for an enhanced OER. The hydrophilic nature BS-CDs exerts significant interfacial induction effect growth dynamics Co(OH)2, fostering formation elevated crystal substantial quantity vacancies. resulting BS-CDs/Co(OH)2 requires overpotential only 340 mV achieve current density 10 mA cm−2 in alkaline media, demonstrating markedly improved OER activity compared pristine N-CDs/Co(OH)2 induced amine-modified CDs. Furthermore, structural integrity maintained, retention rate 92% observed following 20 h stability assessment. This work provides novel approach developing cost-effective transition metal catalysts that exhibit exceptional catalytic efficiency excellent

Language: Английский

Citations

0