Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162592 - 162592
Published: Jan. 1, 2025
Language: Английский
Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162592 - 162592
Published: Jan. 1, 2025
Language: Английский
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
49Advanced 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
21ACS 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
21Advanced 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
20Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 677, P. 771 - 780
Published: Aug. 5, 2024
Language: Английский
Citations
18Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160442 - 160442
Published: Feb. 1, 2025
Language: Английский
Citations
10Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125080 - 125080
Published: Jan. 1, 2025
Language: Английский
Citations
2Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 653, P. 654 - 663
Published: Sept. 9, 2023
Language: Английский
Citations
35Small, 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
31Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144515 - 144515
Published: July 5, 2023
Language: Английский
Citations
24