An in-situ etching strategy toward fully exposed Fe-N5 active sites for boosted nitroaromatic reduction DOI
Hao Huang,

Xuan Han,

Qingshan Zhao

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162592 - 162592

Published: Jan. 1, 2025

Language: Английский

Advanced design strategies for Fe-based metal–organic framework-derived electrocatalysts toward high-performance Zn–air batteries DOI
Yafei Guo,

Shan Zhao,

Nan Zhang

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(5), P. 1725 - 1755

Published: Jan. 1, 2024

This article summarizes the regulation strategies of Fe-based MOFs-derived electrocatalysts for ZABs, and provides a prospect their future development.

Language: Английский

Citations

49

Engineering the Electronic Interaction Between Single Au Atoms and CoN Through Nitrogen‐Coordination Bonding as an Efficient Bifunctional Electrocatalyst for Rechargeable Zn–Air Batteries DOI
Xiaolin Hu, Xia Chen, Xiang Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(27)

Published: Feb. 25, 2024

Abstract Single‐atom catalysts hold significance in the field of electrocatalysis. In this study, cobalt nitride (CoN), known for its semiconductor characteristics, is selected as substrate, on which single gold (Au) atoms are loaded, to synthesize catalyst Au SAC CoN@NF with anchored CoN and grown nickel foam. The introduction results an exceptional double‐layer capacitance (1425.7 mF cm −2 ), offers immense possibilities applications zinc–air batteries based CoN@NF. demonstrated remarkable performance metrics, including a power density 161.94 mW , specific capacity 813.80 mAh g −1 cycling stability more than 260 h at 10 mA . addition, these show outstanding round‐trip efficiency 65.1%. Density functional theory calculations reveal that can optimize adsorption energies intermediates oxygen evolution reaction promote transporting electrons OH − species Au–N active site reduction reaction. proposed electronic metal‐support interaction strategy fresh insights designing single‐atom enhance electrocatalysis efficiency, thereby expanding practical application prospects batteries.

Language: Английский

Citations

21

Asymmetric Coordination of Bimetallic Fe–Co Single-Atom Pairs toward Enhanced Bifunctional Activity for Rechargeable Zinc–Air Batteries DOI
Zhitong Li, Xiongwei Zhong,

Leyi Gao

et al.

ACS Nano, Journal Year: 2024, Volume and Issue: 18(20), P. 13006 - 13018

Published: May 13, 2024

The advancement of rechargeable zinc–air batteries (RZABs) faces challenges from the pronounced polarization and sluggish kinetics oxygen reduction evolution reactions (ORR OER). Single-atom catalysts offer an effective solution, yet their insufficient or singular catalytic activity hinders development. In this work, a dual single-atom catalyst, FeCo-SAs, was fabricated, featuring atomically dispersed N3–Fe–Co–N4 sites on N-doped graphene nanosheets for bifunctional activity. Introducing Co into Fe single-atoms secondary pyrolysis altered coordination with N, creating asymmetric environment that promoted charge transfer increased density states near Fermi level. This catalyst achieved narrow potential gap 0.616 V, half-wave 0.884 V ORR (vs reversible hydrogen electrode) low OER overpotential 270 mV at 10 mA cm–2. Owing to superior RZABs exhibited peak power 203.36 mW cm–2 extended cycle life over 550 h, exceeding commercial Pt/C + IrO2 catalyst. Furthermore, flexible FeCo-SAs demonstrated promising future bimetallic pairs in wearable energy storage devices.

Language: Английский

Citations

21

Unraveling the Tandem Effect of Nitrogen Configuration Promoting Oxygen Reduction Reaction in Alkaline Seawater DOI
Siqi Wu, Xiaobin Liu,

Huimin Mao

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(24)

Published: April 10, 2024

Abstract Developing seawater‐based high‐performance oxygen reduction reaction (ORR) electrocatalysts is meaningful to renewable energy storage and conversion, the Fe‐based derivatives encapsulated by nitrogen (N) doped carbon are typical representative. Nevertheless, unrevealing mechanism of N configuration ORR activity chlorine resistance still a great challenge. In this work, feasible strategy developed prepare controllable pyridinic/pyrrolic‐N carbon‐coated (Fe x N‐NC). Drawing support from H 3 PO 4 blocking based in situ Fourier transform infrared spectroscopy (FTIR) test density‐functional theory (DFT) calculation, tandem effect pyridinic‐N pyrrolic‐N on proved. Additionally, low hydrogen peroxide (H 2 O ) yield 4e − pathway Fe N‐NC demonstrate that doping effectively reduces adsorption Cl , which consistent with DFT. The half‐wave potential (E 1/2 for reaches 0.874 V alkaline seawater, ZABs assembled as air cathode deliver remarkable power density (162 mW cm −2 ), along excellent long‐term durability (>400 h).

Language: Английский

Citations

20

Boosted electrocatalytic activity and durability of Cu Fe/N C by modulating the interfacial composition and electronic structure for efficient oxygen reduction reaction DOI

Shengzhi He,

Jingyu Wang, Chunwen Sun

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 771 - 780

Published: Aug. 5, 2024

Language: Английский

Citations

18

Mo2N nanoclusters and FeMo dual atomic active sites confined in N-doped hollow carbon nanocages for synergistic improvement in oxygen reduction and Zn-air battery DOI

Chenyang Wang,

Lu Zhang, Jiu‐Ju Feng

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160442 - 160442

Published: Feb. 1, 2025

Language: Английский

Citations

10

Accelerated proton-coupled electron transfer kinetics of iron phthalocyanine for oxygen reduction via heteropoly blue clusters DOI

Lingzhe Meng,

Shuwen Niu, Zhengyu Wei

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125080 - 125080

Published: Jan. 1, 2025

Language: Английский

Citations

2

Coexisting Fe single atoms and nanoparticles on hierarchically porous carbon for high-efficiency oxygen reduction reaction and Zn-air batteries DOI
Xiangyu Lu, Yaqiang Li,

Derui Dong

et al.

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 653, P. 654 - 663

Published: Sept. 9, 2023

Language: Английский

Citations

35

Promoting Electromagnetic Wave Absorption Performance by Integrating MoS2@Gd2O3/MXene Multiple Hetero‐Interfaces in Wood‐Derived Carbon Aerogels DOI
Mengxia Shen, Jiale Qi, Xinyu Xu

et al.

Small, Journal Year: 2023, Volume and Issue: 20(12)

Published: Nov. 8, 2023

Abstract Multi‐component composite materials with a magnetic‐dielectric synergistic effect exhibit satisfactory electromagnetic wave absorption performance. However, the effective construction of structure for these multi‐component to fully exploit advantages each component remains challenge. Inspired by natural biomass, this study utilizes wood as raw material and successfully prepares high‐performance MoS 2 @Gd O 3 /Mxene loaded porous carbon aerogel (MGMCA) through one‐pot hydrothermal method carbonization treatment process. With delicate structural design, MGMCA is endowed abundant heterogeneous interface structures, favorable impedance matching characteristics, system, thus demonstrating multiple loss mechanisms. Benefiting from advantages, obtained exhibits outstanding performance, minimum reflection −57.5 dB at an ultra‐thin thickness only 1.9 mm. This research proposes reliable strategy design materials, providing valuable insight biomass‐based absorbers.

Language: Английский

Citations

31

A pH-universal ORR catalyst with S heteroatom doping single-atom iron sites derived from a 2D flake-like MOF for superior flexible quasi-solid-state rechargeable Zn-air battery DOI Open Access
Chen Li, Yaowen Zhang, Min Yuan

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144515 - 144515

Published: July 5, 2023

Language: Английский

Citations

24