Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110861 - 110861
Published: March 1, 2025
Language: Английский
Nature Synthesis, Journal Year: 2024, Volume and Issue: 3(7), P. 878 - 890
Published: June 3, 2024
Language: Английский
Citations
78
Chemical Science, Journal Year: 2024, Volume and Issue: 15(36), P. 14585 - 14607
Published: Jan. 1, 2024
The development of high-efficiency atomic-level catalysts for energy-conversion and -storage technologies is crucial to address energy shortages. spin states diatomic (DACs) are closely tied their catalytic activity. Adjusting the DACs' active centers can directly modify occupancy d-orbitals, thereby influencing bonding strength between metal sites intermediates as well transfer during electro reactions. Herein, we discuss various techniques characterizing atomic strategies modulating center states. Next, outline recent progress in study effects DACs oxygen reduction reaction (ORR), evolution (OER), hydrogen (HER), electrocatalytic nitrogen/nitrate (eNRR/NO
Language: Английский
Citations
27
Chemical Science, Journal Year: 2024, Volume and Issue: 15(29), P. 11188 - 11228
Published: Jan. 1, 2024
The oxygen reduction reaction (ORR) is a key component for many clean energy technologies and other industrial processes. However, the low selectivity sluggish kinetics of ORR catalysts have hampered conversion efficiency real application these new mentioned before. Recently, tremendous efforts been made in mechanism understanding, electrocatalyst development system design. Here, comprehensive critical review provided to present recent advances field electrocatalytic ORR. two-electron four-electron transfer catalytic mechanisms evaluation parameters are discussed first. Then, up-to-date synthetic strategies
Language: Английский
Citations
22
Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 355, P. 124157 - 124157
Published: May 9, 2024
Language: Английский
Citations
17
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Nov. 1, 2024
Double-atom catalysts (DACs) have opened distinctive paradigms in the field of rapidly developing atomic catalysis owing to their great potential for promoting catalytic performance various reaction systems. However, increasing loading and extending service life metal active centres represents a considerable challenge efficient utilization DACs. Here, we rationally design asymmetric nitrogen, sulfur-coordinated diatomic iron on highly defective nitrogen-doped carbon nanosheets (denoted A-Fe
Language: Английский
Citations
16
Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)
Published: Jan. 7, 2025
Owing to their synergistic interactions, dual-atom catalysts (DACs) with well-defined active sites are attracting increasing attention. However, more experimental research and theoretical investigations needed further construct explicit understand the synergy that facilitates multistep catalytic reactions. Herein, we precisely design a series of asymmetric selenium-based comprise heteronuclear SeN2–MN2 (M = Fe, Mn, Co, Ni, Cu, Mo, etc.) for efficient oxygen reduction reaction (ORR). Spectroscopic characterisation calculations revealed selenium atoms can efficiently polarise charge distribution other metal through short-range regulation. In addition, compared Se or Fe single-atom sites, SeFe facilitate in conversion energy barrier from *O *OH via coadsorption intermediates. Among these designed catalysts, selenium-iron achieves superior alkaline ORR performance, half-wave potential 0.926 V vs. reversible hydrogen electrode. SeN2–FeN2-based Zn–air battery has high specific capacity (764.8 mAh g−1) maximum power density (287.2 mW cm−2). This work may provide good perspective designing DACs improve efficiency. Dual-atom precise gaining attention, but studies optimise construction synergy. Here authors report dual- atom reaction.
Language: Английский
Citations
3
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 28, 2025
Abstract Developing highly efficient catalysts to accelerate sluggish electrode reactions is critical for the deployment of sustainable aqueous electrochemical technologies, yet remains a great challenge. Rationally integrating functional components tailor surface adsorption behaviors and adsorbate dynamics would divert reaction pathways alleviate energy barriers, eliminating conventional thermodynamic constraints ultimately optimizing flow within systems. This approach has, therefore, garnered significant interest, presenting substantial potential developing that simultaneously enhance activity, selectivity, stability. The immense promise rapid evolution this design strategy, however, do not overshadow challenges ambiguities persist, impeding realization breakthroughs in electrocatalyst development. review explores latest insights into principles guiding catalytic surfaces enable favorable contexts hydrogen oxygen electrochemistry. Innovative approaches tailoring adsorbate‐surface interactions are discussed, delving underlying govern these dynamics. Additionally, perspectives on prevailing presented future research directions proposed. By evaluating core identifying gaps, seeks inspire rational design, discovery novel mechanisms concepts, ultimately, advance large‐scale implementation electroconversion technologies.
Language: Английский
Citations
3
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 2, 2025
Abstract The dual‐site electrocatalysts formed by metal single atoms combines with nanoparticles represent a promising strategy to enhance both oxygen reduction reaction (ORR) and evolution (OER) performance. Herein, defect engineering is applied ORR OER electrocatalysts. Its design, synthesis, structural properties, catalytic performance experimentally theoretically are insightfully studied for the single‐atomic Fe─N 4 adjacent Fe 7 Co 3 nanoalloy (FeCo NA ) as loading on nitrogen‐doped graphene aerogel (Fe─N/FeCo@NGA). high‐density dual‐sites, together good electronic conductivity of NGA, synergistically improve structure superior electrocatalytic activity. half‐wave potential Fe─N/FeCo@NGA in 0.92 V overpotential it 1.58 V. Corresponding all‐solid‐state Zn‐air battery demonstrates peak power density 147.6 mW cm −2 charge/discharge durability over 140 h. Theoretical calculations reveal that Fe‐N FeCo skeleton optimized further refine local structure, modulating tensile force O─O bond * OOH intermediate, leading its spontaneous dissociation facilitating significantly reduced energy barrier. This work takes shortcut application development highly efficient bifunctional atoms.
Language: Английский
Citations
2
Water Research, Journal Year: 2024, Volume and Issue: 267, P. 122453 - 122453
Published: Sept. 16, 2024
Language: Английский
Citations
13
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)
Published: June 19, 2024
Abstract Simultaneously improving activity and stability is a crucial yet challenge in the development of metallic single‐atom‐based catalysts. In current work, novel approach introduced to address this issue by combining post‐adsorption secondary pyrolysis techniques create synergistic catalytic system, which single atoms (SAs) Fe sites played NC matrix (Fe─NC) are coupled with high‐entropy atomic clusters (HEACs). Theoretical calculations reveal that incorporation HEACs lead rehybridization 3d orbital configuration Fe‐N 4 , helps balance adsorption/desorption energy oxygenated intermediates. situ spectroscopy further reveals rate‐limiting step OH * desorption on HEAC/Fe─NC oxygen reduction reaction (ORR) more facile compared Fe─NC, implying higher ORR activity. Moreover, effect diffusion activation barriers entropy contributes structural HEAC/Fe─NC, resulting remarkable durability. Consequently, unique catalyst exhibits half‐wave potentials 0.927 0.828 V an aqueous solution KOH (0.1 m ) HClO ), respectively, along excellent The findings propose strategy for modulating electronic structure SAs catalysts enhancing their through strong interactions between HEACs.
Language: Английский
Citations
9