Cobalt/nitrogen co-doped carbon nanosheets from coal-based graphene quantum dots boosted oxygen reduction DOI

Qin Li,

Jing Lei,

Xueyang Zhao

et al.

Fuel, Journal Year: 2024, Volume and Issue: 380, P. 133153 - 133153

Published: Sept. 17, 2024

Language: Английский

ZIF-67 derivatives in electrocatalysis DOI

Guoliang Gao,

Chengzhi Xiao,

Rongrong Zhang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216296 - 216296

Published: Nov. 2, 2024

Language: Английский

Citations

9
Interface Engineering Induced by Low Ru Doping in Ni/Co@NC Derived from Ni-ZIF-67 for Enhanced Electrocatalytic Overall Water Splitting DOI
Abdulwahab Salah,

Hong‐Da Ren,

Nabilah Al‐Ansi

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(44), P. 60310 - 60320

Published: Oct. 23, 2024

Electrochemical water splitting is a promising approach for hydrogen evolution reactions (HER); however, the oxygen reaction (OER) remains major bottleneck due to its high energy requirements. High-performance electrocatalysts capable of facilitating HER, OER, and overall (OWS) are highly needed improve OER kinetics. In this work, we synthesized trimetallic heterostructure Ru, Ni, Co incorporated into N-doped carbon (denoted as Ru/Ni/Co@NC) by first synthesizing Ni/Co@NC from Ni-ZIF-67 polyhedrons via high-temperature carbonization, followed Ru doping using galvanic replacement method. Benefiting increased active surface sites, modulated electronic structure, enhanced interfacial synergistic effects, Ru/Ni/Co@NC exhibited exceptional electrocatalytic performance both HER processes. The optimized catalyst, with minimal mass ratio ∼2.07%, demonstrated significantly low overpotential values 34 mV 174 at current density 10 mA/cm2 corresponding Tafel slope 33.42 34.39 mV/dec, respectively. Further, catalyst was loaded onto paper used anode cathode materials alkaline splitting. Interestingly, cell voltage just 1.44 V obtained. electrolytic further elaborated functional theory (DFT) calculations, which confirmed that in Ni/Co introduced additional sites H*, enhancing adsorption/desorption abilities (ΔGH* = -0.30 eV), lowering dissociation barrier (ΔGb 0.49 eV) reducing rate-determining step (O* → OOH*) 1.62 eV an environment. These findings reflect significant potential ZIF-67-based catalysts conversion storage applications.

Language: Английский

Citations

4
In situ exsolution-induced formation of amorphous/crystalline heterointerfaces in Ba0.6Sr0.4Co0.8Fe0.2O3-δ for enhanced oxygen electrocatalysis in zinc-air batteries DOI
Zihao Xie, Qian Yang, Xiaomin Xu

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 127, P. 530 - 540

Published: April 15, 2025

Language: Английский

Citations

0
Cobalt/nitrogen co-doped carbon nanosheets from coal-based graphene quantum dots boosted oxygen reduction DOI

Qin Li,

Jing Lei,

Xueyang Zhao

et al.

Fuel, Journal Year: 2024, Volume and Issue: 380, P. 133153 - 133153

Published: Sept. 17, 2024

Language: Английский

Citations

2