Bead-Structured Triple-Doped Carbon Nanocage/Carbon Nanofiber Composite as a Bifunctional Oxygen Electrocatalyst for Zn–Air Batteries DOI
Qing Wang, Yige Zhao, Bo Zhang

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

Zeolitic imidazolate framework (ZIF)-derived metal–nitrogen carbon (M–N–C) materials are considered as promising electrocatalysts for oxygen reduction reaction (ORR) and evolution (OER) applied in rechargeable zinc–air batteries (ZABs). However, due to their unsatisfied conductivity aggregation, appropriate regulations about structure components still necessary achieve superior bifunctional performance. Herein, by simple ion exchange one-step electrospinning method, a beaded composite electrocatalyst (Fe, Co–N–C/CNF) with Fe, Co, N codoped nanocages uniformly embedded the nanofibers one was synthesized, achieving simultaneous structural compositional regulation. Benefiting from beaded-like dual sites, Co–N–C/CNF exhibits outstanding catalytic performance ORR OER. Ultraviolet photoelectron spectroscopy (UPS) reveals that has low electron transfer barrier between active centers intermediates, ultimately accelerating kinetics. In addition, Co–N–C/CNF-based ZAB also demonstrates charge–discharge compared Pt/C-RuO2-based ZAB. This study not only offers an effective design strategy but provides component regulation method ZIF-derived electrocatalysts.

Language: Английский

Precise synthesis of dual atom sites for electrocatalysis DOI
Yao Wang,

Fengya Ma,

Guoqing Zhang

et al.

Nano Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Language: Английский

Citations

19
Breaking symmetry for better catalysis: insights into single-atom catalyst design DOI
Peng Cao,

Xueqin Mu,

Fanjiao Chen

et al.

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review examines the strategies of symmetry breaking (charge/coordination/geometric) in single-atom catalysts to regulate active site electronic structures, greatly enhancing catalytic performance.

Language: Английский

Citations

3
Recycling Cobalt in Spent Lithium-Ion Batteries to Design Two-Dimensional Porous CoOx/CoNx Nanosheets for Full Water Splitting and Nonenzymatic Glucose Detection DOI
Zhuang Wang, Mian Li, Wenping Cao

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 26, 2024

Language: Английский

Citations

3
Manipulating the Intrinsic Magnetism of Spinel Catalyst toward Magnetic Field-Enhanced OER DOI
Licai Hao, Ji‐Yun Hu, Jing Li

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 5640 - 5650

Published: March 21, 2025

Language: Английский

Citations

0
Ultra‐High Activity and Durability of Low‐Platinum Fuel Cells Enabled by Encapsulation of L10‐PtCo and L12‐Pt3Co Intermetallic Compounds DOI Open Access

Gong Li,

Jingsen Bai,

Changpeng Liu

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 10, 2024

Developing high-performance, durable, and ultralow-loading platinum (Pt) catalysts for the oxygen reduction reaction (ORR) is crucial advancing fuel cells. Here, a novel structured alloy catalyst reported, characterized by Pt-Co intermetallic compounds with Pt-skin, encapsulated covalent organic framework (COF) derived carbon support. This unique structure, combining alloy-induced strain effects protective encapsulation, leads to exceptional catalytic activity stability at an ultralow Pt loading of 0.02 mg

Language: Английский

Citations

1
Electrospun nanofibers for electrochemical reduction of CO 2: From spinning fabrication techniques to electrocatalyst design DOI
Yanbiao Liu,

Ping Feng,

Zhenzhen Wang

et al.

Nano Research, Journal Year: 2024, Volume and Issue: 18(2), P. 94907154 - 94907154

Published: Dec. 16, 2024

Language: Английский

Citations

1
Bead-Structured Triple-Doped Carbon Nanocage/Carbon Nanofiber Composite as a Bifunctional Oxygen Electrocatalyst for Zn–Air Batteries DOI
Qing Wang, Yige Zhao, Bo Zhang

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

Zeolitic imidazolate framework (ZIF)-derived metal–nitrogen carbon (M–N–C) materials are considered as promising electrocatalysts for oxygen reduction reaction (ORR) and evolution (OER) applied in rechargeable zinc–air batteries (ZABs). However, due to their unsatisfied conductivity aggregation, appropriate regulations about structure components still necessary achieve superior bifunctional performance. Herein, by simple ion exchange one-step electrospinning method, a beaded composite electrocatalyst (Fe, Co–N–C/CNF) with Fe, Co, N codoped nanocages uniformly embedded the nanofibers one was synthesized, achieving simultaneous structural compositional regulation. Benefiting from beaded-like dual sites, Co–N–C/CNF exhibits outstanding catalytic performance ORR OER. Ultraviolet photoelectron spectroscopy (UPS) reveals that has low electron transfer barrier between active centers intermediates, ultimately accelerating kinetics. In addition, Co–N–C/CNF-based ZAB also demonstrates charge–discharge compared Pt/C-RuO2-based ZAB. This study not only offers an effective design strategy but provides component regulation method ZIF-derived electrocatalysts.

Language: Английский

Citations

0