Engineering Asymmetric Bimetallic CoM (M = Ni, Fe, Mn, Cu) Nanoparticles Encapsulated in Freestanding Wood‐Derived Carbon Electrodes for Enhanced ORR Kinetics in Zinc‐Air Batteries DOI Open Access

Lian‐Hua Xu,

Qichang Wang, L. Hu

et al.

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

Published: Dec. 10, 2024

The electrochemical reduction of oxygen is pivotal for advancing emerging energy technologies. Precise control over morphology and electronic structure essential enhancing catalytic activity stability in the reaction (ORR). In this study, a freestanding carbon electrode developed by in-situ growth nanotube (CNT)-encapsulated bimetallic CoM (M = Ni, Fe, Mn, Cu) nanoparticles (NPs) within hierarchical carbonized wood matrix (CoM@NWCC). hierarchically porous architecture promotes efficient mass transfer during ORR. X-ray photoelectron spectroscopy (XPS) density functional theory (DFT) analyses revealed that incorporating metals such as Cu modulates Co, specifically adjusting distance between d-band center (E

Language: Английский

Ultrafast Electrodeposition of Durable NiFe Catalysts for Efficient Hydrogen Evolution Reaction DOI Open Access

Caiwei Qin,

Minghua Bai,

Dongwei Cao

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 1, 2025

Abstract Finding noble‐metal‐free hydrogen evolution reaction (HER) catalysts with facile synthesis and efficient performance is essential to carry out electrochemical overall water splitting for energy development. An ultrafast electrodeposition technique the of NiFe developed. The rapid nanoparticle film morphology was achieved by uniformly anchoring particles onto three‐dimensional nickel foam (NF) via one‐step constant‐current in 30 s. catalyst exhibited excellent HER electrocatalytic activity stability 1.0 M KOH solution. To attain a current density 10 mA·cm −2 , displayed favorable kinetics an overpotential 168 mV Tafel slope 168.5 mV·dec −1 . Continuous tests NiFe/NF electrode were conducted up 23 h at 10·mA·cm decrease merely 2 mV, exhibiting outstanding durability.

Language: Английский

Citations

0
In situ construction of high-content Fe, N co-doped carbon nanotube networks for efficient oxygen reduction reactions in both alkaline and acidic environments DOI
Yi Zhang, Tenglong Zhu, Qin Zhong

et al.

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 178815 - 178815

Published: Jan. 1, 2025

Language: Английский

Citations

0
Dynamic visualization for stress-induced crack initiation and resulted corrosion expansion in carbon quantum tailored epoxy coating DOI

En-Kang Wu,

Sihan Gu,

Cheng Li

et al.

Progress in Organic Coatings, Journal Year: 2025, Volume and Issue: 203, P. 109164 - 109164

Published: Feb. 26, 2025

Language: Английский

Citations

0
Progress of synergistic oxygen electrocatalysis between single atoms and nanoparticles/clusters DOI

Qianyi Zhu,

Juan Zhou, Le Li

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 125, P. 86 - 99

Published: April 8, 2025

Language: Английский

Citations

0
Tuning local charge polarization of covalent organic frameworks for enhanced photocatalytic uranium (VI) reduction DOI
Xiaoxing Wang,

Cheng-Rong Zhang,

Rui‐Xiang Bi

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 156483 - 156483

Published: Oct. 6, 2024

Language: Английский

Citations

3
Mono‐/Bimetallic Doped and Heterostructure Engineering for Electrochemical Energy Applications DOI Creative Commons
Dawei Chu,

Zhongwang Liang,

Yi Cheng

et al.

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

Published: Sept. 25, 2024

Abstract Designing efficient materials is crucial to meeting specific requirements in various electrochemical energy applications. Mono‐/bimetallic doped and heterostructure engineering have attracted considerable research interest due their unique functionalities potential for conversion storage. However, addressing material imperfections such as low conductivity poor active sites requires a strategic approach design. This review explores the latest advancements modified by mono‐/bimetallic heterojunction strategies It can be subdivided into three key points: (i) regulatory mechanisms of metal doping materials; (ii) preparation methods with strategies; (iii) synergistic effects two approaches, further highlighting applications supercapacitors, alkaline ion batteries, electrocatalysis. Finally, concludes perspectives recommendations advance these technologies.

Language: Английский

Citations

2
Porous carbon-nanostructured electrocatalysts for zinc-air batteries: From materials design to applications DOI Creative Commons

Sanshuang Gao,

Maolin Li,

Nianpeng Li

et al.

Nanoscale Advances, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Zinc-air batteries (ZABs) are pivotal in the evolution of sustainable energy storage solutions, distinguished by their high density and minimal environmental footprint. The oxygen electrode, which relies on sophisticated porous carbon materials, is critical to operational efficiency. This review scrutinizes reduction reaction (ORR) (OER) processes ZABs through advanced applications. It delves into innovative synthesis techniques such as templating, chemical vapor deposition, self-assembly that tailor pore structures for peak performance. interactions between catalytic sites nanostructures, significantly boost electrochemical performance, highlighted. manuscript discusses future strategies overcoming current challenges advancing efficiency electrode design, emphasizing integration nano-engineering materials science foster with superior capacity adaptability. Additionally, projects how ongoing research material properties could unlock new applications other systems, potentially broadening scope ZAB technology. paper integrates recent advancements offering insights next-generation high-performance development.

Language: Английский

Citations

0
Engineering Asymmetric Bimetallic CoM (M = Ni, Fe, Mn, Cu) Nanoparticles Encapsulated in Freestanding Wood‐Derived Carbon Electrodes for Enhanced ORR Kinetics in Zinc‐Air Batteries DOI Open Access

Lian‐Hua Xu,

Qichang Wang, L. Hu

et al.

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

Published: Dec. 10, 2024

The electrochemical reduction of oxygen is pivotal for advancing emerging energy technologies. Precise control over morphology and electronic structure essential enhancing catalytic activity stability in the reaction (ORR). In this study, a freestanding carbon electrode developed by in-situ growth nanotube (CNT)-encapsulated bimetallic CoM (M = Ni, Fe, Mn, Cu) nanoparticles (NPs) within hierarchical carbonized wood matrix (CoM@NWCC). hierarchically porous architecture promotes efficient mass transfer during ORR. X-ray photoelectron spectroscopy (XPS) density functional theory (DFT) analyses revealed that incorporating metals such as Cu modulates Co, specifically adjusting distance between d-band center (E

Language: Английский

Citations

0