Unveiling the Mystery of Precision Catalysis: Dual‐Atom Catalysts Stealing the Spotlight DOI Open Access
Mengyang Zhang,

Xuchuan Cao,

Jie Dong

et al.

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

Published: Dec. 26, 2024

In the era of atomic manufacturing, precise manipulation structures to engineer highly active catalytic sites has become a central focus in catalysis research. Dual-atom catalysts (DACs) have garnered significant attention for their superior activity, selectivity, and stability compared single-atom (SACs). However, comprehensive review that integrates geometric electronic factors influencing DAC performance remains limited. This systematically explores structure DAC, addressing key macroscopic parameters, such as spatial arrangements interatomic distances, well microscopic factors, including local coordination environments structures. Additionally, metal-support interactions (MSI) long-range (LSI) are comprehensively analyzed, which play pivotal yet underexplored role governing behavior. integration tailored functional groups is further discussed fine-tune properties, thereby optimizing intermediate adsorption, enhancing reaction kinetics, expanding multifunctionality various electrochemical environments. offers novel insights into rational design by elucidating intricate mechanisms underlying DACs' exceptional performance. Ultimately, DACs positioned critical players precision catalysis, highlighting potential drive breakthroughs across broad spectrum applications.

Language: Английский

Targeting Synthesis of Diatomic Catalysts by Selective Etching and Sequential Adsorption of Metal Atom DOI

Xiangrong Jin,

Mengyao Chang,

Hao Sun

et al.

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 8, 2025

Diatomic catalysts featuring a tunable structure and synergetic effects hold great promise for various reactions. However, their precise construction with specific configurations diverse metal combinations is still challenging. Here, selective etching ion adsorption strategy proposed to accurately assign second atom (M2) geminal the single site (M1–Nx) constructing diatomic sites (e.g., Fe–Pd, Fe–Pt, Fe–Ru, Fe–Zn, Co–Fe, Co–Ni, Co–Cu). In this strategy, hydrogen peroxide selectively etches positively charged carbon atoms near M1–Nx moiety (denoted as α-C) produces vacancy, which could trap M2 at subsequent step. These show optimized electronic enhanced oxygen reduction activity compared single-site counterparts, representative Fe–Pd–NC Co–Fe–NC stand most active reaction (half-wave potential of 0.92 0.91 V, respectively). The α-C in single-atom reported here represents new post-treatment targeting synthesis sites.

Language: Английский

Citations

3
Revisiting the Ruthenium Oxide-based Water Oxidation Catalysts in Acidic Media: from Amorphous to Crystalline DOI
Mengxin Chen,

Sze Xing Tan,

Shuying Cheng

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110800 - 110800

Published: Feb. 1, 2025

Language: Английский

Citations

1
Tuning electronic structure of cobaltous nitride-manganous oxide heterojunction by N-vacancy engineering for optimizing oxygen electrocatalysis activity DOI
Xiaoqin Xu,

Tianmi Tang,

Guiru Zhang

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110294 - 110294

Published: Sept. 1, 2024

Language: Английский

Citations

8
In Situ Reconstruction of Bimetallic Heterojunctions Encapsulated in N/P Co-Doped Carbon Nanotubes for Long-life Rechargeable Zinc-Air Batteries DOI
Fang Dong, Mingjie Wu, Zhangsen Chen

et al.

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110497 - 110497

Published: Nov. 1, 2024

Language: Английский

Citations

5
Manipulating the Adjacent Microenvironment of Atomically Dispersed FeN4 Sites via Cross-Link-Induced 3D Carbon Nest for Efficient Oxygen Reduction DOI

Tonghui Zhao,

Guangjin Wang, Dongdong Xiao

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: 15(3), P. 1477 - 1486

Published: Jan. 9, 2025

Electronic perturbation induced by the microenvironment regulation adjacent to FeN4 sites anchored on metal–N–C materials will accelerate its oxygen reduction reaction (ORR) kinetics. Herein, we report a fine-tuning in charge configuration of through defect-rich N/S-doped carbon nest derived from chemically cross-linked pyrrole/thiophene copolymer (CCPPT) with sp3-hybridized cross-linker. Compared (PPT) without cross-linker, CCPPT knitted three-dimensional (3D) network delivers higher defect density and ∼2-fold sulfur retention after pyrolysis. The structural characterizations combined theoretical calculations suggest that vacancy defects (Cvd) FeN4/S2 moiety together induce redistribution resultant CC-Fe1/NSC CCPPT, reducing adsorption strength oxygen-containing intermediates energy barrier ORR. As expected, shows an impressive half-wave potential ∼0.91 V vs reversible hydrogen electrode (RHE), surpassing both PPT-derived Fe1/NSC (0.88 V) commercial Pt/C (0.86 V). This work provides distinctive path manipulate single-atom catalysts toward ORR or even beyond.

Language: Английский

Citations

0
Precisely regulating the electronic configuration of Fe-N4 units for practical oxygen reduction reactions DOI
Hui Zhang, Jingjing Jiang, Baojie Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159888 - 159888

Published: Jan. 1, 2025

Language: Английский

Citations

0
Pairing dual hetero single atoms Co-Cu centers to reduce H2O2 for high-performance nanozyme sensor DOI
Juan Li, Jinggao Wu, Chang Ming Li

et al.

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 145819 - 145819

Published: Feb. 1, 2025

Language: Английский

Citations

0
Ligand-Restricted Strategy for Synthesizing Highly Pairing Dual Atom Catalysts DOI Creative Commons
Limin Wu,

Yanfu Ma,

Shuhui Liu

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 14, 2025

Abstract Dual atom catalysts (DACs), characterized by high activity and metal utilization, as well structural diversity with a large variety of catalytic sites, hold immense promise for energy conversion technologies, garnering substantial interest from both academia industry. However, achieving precise control manipulation atomic dispersion, pairing ratios, interatomic distances in DACs, which significantly affect their multifunctional properties, remains significant challenge. Herein, we developed ligand-restricted strategy the synthesis highly DACs tunable distances. This was accomplished coordinating diamine ligands dual precursors, restricting relative positions two atoms on two-dimensional graphitic carbon nitride. The ratio exceeded 82%, chain length molecules effectively regulating distance between paired atoms. As demonstration, Pt1-Au1 exhibited almost three times nitrate reduction to ammonia compared unpaired counterparts. Furthermore, shorter distanced DAC reveals four photothermal catalyzed hydrogenation reactions than longer ones. work not only introduces novel design atomic-scale fabrication complex but also provides valuable insights into nanoscale reaction mechanisms heterogeneous catalysis.

Language: Английский

Citations

0
Conjugated Coordination Polymer Composite Electrodes for Efficient Nitrogen Reduction Electrocatalysis DOI

Yuanhao Song,

S. Zhang, Yunxia Liu

et al.

Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102326 - 102326

Published: Feb. 1, 2025

Language: Английский

Citations

0
Coordination Anions Dimensionality-Engineered Dual-Atom Catalysts for Enhanced Fenton-Like Reactions: 3D Coordination Induced Spin-State Transition DOI
Yanling Chen, Han Zhang, Yao Li

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: April 4, 2025

Dual-atom catalysts (DACs) have shown significant application potential in Fenton-like reactions. However, effectively modulating their electronic structure and fully understanding the mechanisms driving high catalytic activity remain challenging. Herein, we propose a coordination anions dimensionality engineering strategy to synthesize biomass-derived dual-atom FeCo-N4O1C catalysts, which Fe Co atoms are bridged by two-dimensional planar N three-dimensional (3D) axial O atom. Experimental data theoretical calculations reveal that 3D of induces spin state undergo transition from low an intermediate compared with single-atom Fe-N4O1C, resulting moderate adsorption desorption intermediates, thus reducing energy barriers for generating more singlet oxygen high-valent cobalt-oxo species during peroxymonosulfate activation. The electron transfer neighboring through can prevent poisoning active species. Benefiting synergistic effects multiple sites, catalyst-dose normalized reaction rate constant reaches 14.5 L min-1 g-1 under concentrations─an improvement 1 ∼ 2 orders magnitude over most reported catalysts. practical applicability is demonstrated nearly 100% pollutant removal 7 days continuous operation membrane filtration system. This study provides deep insights into relationship between performance spin-state regulation DACs, introduces promising approach large-scale synthesis low-cost, highly efficient DACs

Language: Английский

Citations

0