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
Metal ions trigger fast charge transport channels for boosting carbon nitride-based photoelectrochemical ultrasensitive aptasensing of enrofloxacin DOI

Pengcheng Yan,

Chunfu Wang,

Guanyu Wu

et al.

Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137316 - 137316

Published: Jan. 1, 2025

Language: Английский

Citations

2
O‐Bridged Co‐Cu Dual‐Atom Catalyst Synergistically Triggers Interfacial Proton‐Coupled Electron Transfer: A New Approach to Sustainable Decontamination DOI Open Access
Qin Dai, Xin Li, Jieyuan Li

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Heteroatom‐bridged dual‐atom catalysts (DACs), featuring more flexible active sites and intermetallic interaction, provide an opportunity for sustainable environmental remediation. Herein, innovative oxygen‐bridged Co‐Cu DAC supported on nano‐alumina (CoOCu‐DAC) is fabricated using a straightforward two‐step process. The as‐prepared catalyst significantly enhances both decontamination kinetics peroxymonosulfate (PMS) utilization efficiency by 1–3 orders of magnitude toward monoethanolamine (MEA, p K = 9.5) compared to Co single‐atom (Co‐SAC) bulk metal catalysts, largely outperforms previously reported systems. In‐situ ATR‐FTIR theoretical investigations reveal that the secondary introduction Cu plays multiple important roles: it activates lattice oxygen trigger key proton transfer (PT) MEAH + via nucleophilic attack at interface subsequently favors deprotonated MEA as efficient electron donor accelerate (ET) enhancing orbital overlaps co‐activation O 2 PMS. Such stepwise proton‐coupled (PCET)‐enhanced catalytic pathway mediated CoOCu‐DAC fundamentally different from common route identified in Co‐SAC‐involved Fenton‐like system. established binary QSAR further substantiates universality PCET‐enhanced strategy versatile nitrogen‐containing organic compounds. This study offers new perspective water other related areas catalysis based rationalized design multifunctional atomic level.

Language: Английский

Citations

1
Utilizing Molybdenum to Tailor the Electronic Structure of Iron Through Electron Complementary Effect for Promoting Oxygen Reduction Activity DOI Open Access
Jie Jiang,

Miaomiao Tong,

Di Shen

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 16, 2025

Abstract Tailoring the electronic structure of later transition metal‐based electrocatalysts by incorporating early metal based on complementary effect is anticipated to enhance electrocatalytic activity. Herein, modulation Fe 3 C through utilization Mo 2 promote oxygen reduction reaction (ORR) activity reported. In situ characterizations combined with theoretical calculations reveal that electron‐donating capability molybdenum in active center iron optimizes adsorption and activation oxygen. Concurrently, d‐band much closer Fermi level, which reduces energy barrier for rate‐determining step ( * OOH → O), thereby enhancing ORR alkaline media, catalyst delivers a half‐wave potential E 1/2 ) 0.89 V maintains its efficiency mere 8 mV decay after 10 000 cycles, surpassing Pt/C. Moreover, it can serve as an air cathode both liquid‐state all‐solid‐state zinc‐air batteries (ZABs) shows promising applications portable devices. This work brings innovative design concept highly efficient suitable advanced

Language: Английский

Citations

1
Reinforced built-in electric field and mediated Schottky barrier height via carbon quantum dots electronic bridges on BiOBr/Ti3C2 for efficient photocatalytic quinolone antibiotics degradation DOI

Linxing Wang,

Jing Sun, Jian‐Wen Shi

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 500, P. 157168 - 157168

Published: Oct. 30, 2024

Language: Английский

Citations

8
High‐Density Dual Atoms Pairs Coupling for Efficient Electromagnetic Wave Absorbers DOI
Hongsheng Liang,

Shengchong Hui,

Limin Zhang

et al.

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

Published: Nov. 27, 2024

Abstract Dual atoms (DAs), characterized by flexible structural tunability and high atomic utilization, hold significant promise for atom‐level coordination engineering. However, the rational design with high‐density heterogeneous DAs pairs to promote electromagnetic wave (EMW) absorption performance remains a challenge. In this study, Ni─Cu coupled absorbers are precisely constructed on nitrogen‐rich carbon substrate, achieving an impressive metal loading amount of 4.74 wt.%, enabling huge enhancement effective bandwidth (EAB) EMW from 0 7.8 GHz. Furthermore, minimum reflection loss (RL min ) is −70.96 dB at matching thickness 3.60 mm, corresponding >99.99% incident energy. Both experimental results theoretical calculations indicate that synergistic effect sites in transfer electron‐rich initial N Cu sites, which induces strong asymmetric polarization redistribution local charge significantly improves performance. This work not only provides strategy preparation DA but also demonstrates role tuning symmetry level.

Language: Английский

Citations

8
An in-depth analysis of microbial response to exposure to high concentrations of microplastics in anaerobic wastewater fermentation DOI

Hui Wang,

Wenbo Liao,

Qixing Zhou

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 953, P. 176133 - 176133

Published: Sept. 7, 2024

Language: Английский

Citations

6
Electronic Structure Reconstruction of Fe-Mn Diatomic Pair for Disentangling Activity-Stability Tradeoff in Fenton-like Reactions DOI
Wenqian Li,

Lingyu Kong,

Zhenyi Wang

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: unknown, P. 124920 - 124920

Published: Dec. 1, 2024

Language: Английский

Citations

5
Visible‐Light‐Induced Rapid Elimination of Antibiotic Resistance Contaminations Using Graphitic Carbon Nitride Tailored with Carrier Confinement Domains DOI
Hao Yang, Dongyang He,

Linyi Fan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

Solar water disinfection facilitated by photocatalyst has been considered a viable point-of-use (POU) method for mitigating antibiotic resistance contaminations at the household or community levels. Here, density functional theory calculations are used to guide fabrication of carrier confinement domains (CCD)-decorated graphitic carbon nitride (CN) photocatalyst. The CCD integration effectively disrupts electron distribution symmetry CN, amplifies its local density, and facilitates formation long-range ordered structure, thereby enhancing charge separation efficiency. Importantly, directs migration photogenerated carriers specific regions upon light illumination, minimizing their spatial proximity. As result, overall reactive oxygen species level photocatalytic system is markedly elevated, with twelvefold increase in H

Language: Английский

Citations

4
Exploring Brain Size Asymmetry and Its Relationship with Predation Risk Among Chinese Anurans DOI Creative Commons
Chuan Chen, Ying Jiang, Yiming Wu

et al.

Biology, Journal Year: 2025, Volume and Issue: 14(1), P. 38 - 38

Published: Jan. 7, 2025

Brain size asymmetry differs considerably across species, including humans, vertebrates, and invertebrates. The subtle structural, functional, or differences between the two brain sides are associated with processing specific cognitive tasks. To evaluate sizes of left right whole regions effect predation risk (i.e., snake density) on among Chinese anurans, we compared hemisphere anuran species analyzed correlations index regions. We found that when one side was consistently larger than other, there a significant difference regions, displaying directional also total positively correlated olfactory bulb optic tecta hemispheres were ones. Meanwhile, telencephalon However, non-significant 99 anurans. Our findings suggest an increased linked to sociality is likely drive increase in size.

Language: Английский

Citations

0