Asymmetric Microenvironment Tailoring Strategies of Atomically Dispersed Dual‐Site Catalysts for Oxygen Reduction and CO2 Reduction Reactions DOI
Shiqing Huang,

F K Lin,

Shitao Wang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(41)

Published: Aug. 17, 2024

Dual-atom catalysts (DACs) with atomically dispersed dual-sites, as an extension of single-atom (SACs), have recently become a new hot topic in heterogeneous catalysis due to their maximized atom efficiency and dual-site diverse synergy, because the synergistic diversity dual-sites achieved by asymmetric microenvironment tailoring can efficiently boost catalytic activity optimizing electronic structure DACs. Here, this work first summarizes frequently-used experimental synthesis characterization methods Then, four mechanisms (cascade mechanism, assistance co-adsorption mechanism bifunction mechanism) key modulating (active site strategy, transverse/axial-modification engineering, distance engineering strain engineering) are elaborated comprehensively. The emphasis is placed on effects DACs oxygen/carbon dioxide reduction reaction. Finally, some perspectives outlooks also addressed. In short, review useful strategy speed up high-performance electrocatalysts for different reactions.

Language: Английский

Review on strategies for improving the added value and expanding the scope of CO2 electroreduction products DOI
Minghang Jiang, Huaizhu Wang, Mengfei Zhu

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(10), P. 5149 - 5189

Published: Jan. 1, 2024

This review summarizes promising strategies including the design of catalysts and construction coupled electrocatalytic reaction systems, aimed at achieving selective production various products from CO 2 electroreduction.

Language: Английский

Citations

70
An asymmetrically coordinated ZnCoFe hetero-trimetallic atom catalyst enhances the electrocatalytic oxygen reaction DOI

Changli Chen,

Jing Chai,

Mengru Sun

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(6), P. 2298 - 2308

Published: Jan. 1, 2024

In this work, we design an asymmetric hetero-trimetallic single-atom catalyst with ZnN 3 CoN FeN 2 S active catalytic sites to enhance the oxygen reaction performances.

Language: Английский

Citations

48
Sulfur‐Bridged Asymmetric CuNi Bimetallic Atom Sites for CO2 Reduction with High Efficiency DOI

Zhiyi Sun,

Chen Li, Zihao Wei

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 25, 2024

Abstract Double‐atom catalysts (DACs) with asymmetric coordination are crucial for enhancing the benefits of electrochemical carbon dioxide reduction and advancing sustainable development, however, rational design DACs is still challenging. Herein, this work synthesizes atomically dispersed novel sulfur‐bridged Cu‐S‐Ni sites (named Cu‐S‐Ni/SNC), utilizing biomass wool keratin as precursor. The plentiful disulfide bonds in overcome limitations traditional gas‐phase S ligand etching process enable one‐step formation S‐bridged sites. X‐ray absorption spectroscopy (XAS) confirms existence bimetallic N 2 Cu‐S‐NiN moiety. In H‐cell, Cu‐S‐Ni/SNC shows high CO Faraday efficiency 98.1% at −0.65 V versus RHE. Benefiting from charge tuning effect between metal site bridged sulfur atoms, a large current density 550 mA cm −2 can be achieved −1.00 flow cell. Additionally, situ XAS, attenuated total reflection surface‐enhanced infrared (ATR‐SEIRAS), functional theory (DFT) calculations show Cu main adsorption dual‐regulated by Ni which enhances activation accelerates *COOH intermediates. This kind atom may open new pathways precision preparation performance regulation atomic materials toward energy applications.

Language: Английский

Citations

27
Spin effect in dual-atom catalysts for electrocatalysis DOI Creative Commons

Xiaoqin Xu,

Jingqi Guan

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
Multi‐Enzyme Mimetic MoCu Dual‐Atom Nanozyme Triggering Oxidative Stress Cascade Amplification for High‐Efficiency Synergistic Cancer Therapy DOI Open Access

Ziyao Li,

Binbin Ding, Jing Li

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Aug. 22, 2024

Single-atom nanozymes (SAzymes) with ultrahigh atom utilization efficiency have been extensively applied in reactive oxygen species (ROS)-mediated cancer therapy. However, the high energy barriers of reaction intermediates on single-atom sites and overexpressed antioxidants tumor microenvironment restrict amplification oxidative stress, resulting unsatisfactory therapeutic efficacy. Herein, we report a multi-enzyme mimetic MoCu dual-atom nanozyme (MoCu DAzyme) various catalytic active sites, which exhibits peroxidase, oxidase, glutathione (GSH) nicotinamide adenine dinucleotide phosphate (NADPH) oxidase mimicking activities. Compared Mo SAzyme, introduction Cu atoms, formation synergetic effects among enhance substrate adsorption reduce barrier, thereby endowing DAzyme stronger Benefiting from above enzyme-like activities, can not only generate multiple ROS, but also deplete GSH block its regeneration to trigger cascade stress. Additionally, strong optical absorption near-infrared II bio-window endows remarkable photothermal conversion performance. Consequently, achieves high-efficiency synergistic treatment incorporating collaborative therapy This work will advance applications DAzymes provide valuable insights for nanocatalytic

Language: Английский

Citations

16
Precisely designing asymmetrical selenium-based dual-atom sites for efficient oxygen reduction DOI Creative Commons
Xiaochen Wang,

Ning Zhang,

Huishan Shang

et al.

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
Enigma of Sustainable CO2 Conversion to Renewable Fuels and Chemicals Through Photocatalysis, Electrocatalysis, and Photoelectrocatalysis: Design Strategies and Atomic Level Insights DOI Open Access

Diksha Suri,

Srimanta Das,

Shivani Choudhary

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Growing global population, escalating energy consumption, and climate change threaten future security. Fossil fuel combustion, primarily coal, oil, natural gas, exacerbates the greenhouse effect driving warming through CO

Language: Английский

Citations

2
Boosting Electrocatalytic Carbon Dioxide Reduction via Self‐Relaxation of Asymmetric Coordination in Fe‐Based Single Atom Catalyst DOI

Zhaoyong Jin,

Dongxu Jiao,

Yilong Dong

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(6)

Published: Dec. 16, 2023

Addressing the limitations arising from consistent catalytic behavior observed for various intermediates during electrochemical carbon dioxide reduction reaction (CO

Language: Английский

Citations

40
FeCu bimetallic clusters for efficient urea production via coupling reduction of carbon dioxide and nitrate DOI
Tong Hou, Tianran Wei, Yeyu Wu

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 674, P. 834 - 840

Published: June 27, 2024

Language: Английский

Citations

13
Precise synthesis of dual atom sites for electrocatalysis DOI
Yao Wang,

Fengya Ma,

Guoqing Zhang

et al.

Nano Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 17, 2024

Language: Английский

Citations

13