Engineering Local Coordination and Electronic Structures of Dual-Atom Catalysts DOI
Xinzhe Li, Xuan Liu, Muzammil Hussain

et al.

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

Published: May 1, 2025

Heterogeneous dual-atom catalysts (DACs), defined by atomically precise and isolated metal pairs on solid supports, have garnered significant interest in advancing catalytic processes technologies aimed at achieving sustainable energy chemical production. DACs present board opportunities for atomic-level structural property engineering to enhance performance, which can effectively address the limitations of single-atom catalysts, including restricted active sites, spatial constraints, typically positive charge nature supported single species. Despite rapid progress this field, intricate relationship between local atomic environments behavior dual-metal sites remains insufficiently understood. This review highlights recent major challenges field. We begin discussing modulation coordination electronic structures its impact performance. Through specific case studies, we demonstrate importance optimizing entire ensemble achieve efficient, selective, stable performance both model industrially relevant reactions. Additionally, also outline future research directions, emphasizing synthesis, characterization, practical applications, aiming fully unlock potential these advanced catalysts.

Language: Английский

Modulating the Active Hydrogen Adsorption on Fe─N Interface for Boosted Electrocatalytic Nitrate Reduction with Ultra‐Long Stability DOI Creative Commons
Hongxia Luo, Shuangjun Li, Ziyang Wu

et al.

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(46)

Published: July 25, 2023

The electrocatalytic reduction of nitrate (NO3- ) to nitrogen (N2 is an environmentally friendly approach for efficient N-cycle management (toward a nitrogen-neutral cycle). However, poor catalyst durability and the competitive hydrogen evolution reaction significantly impede its practical application. Interface-chemistry engineering, utilizing close relationship between surface/interface microenvironment electron/proton transfer process, has facilitated development catalysts with high intrinsic activity physicochemical durability. This study reports synthesis nitrogen-doped carbon-coated rice-like iron nitride (RL-Fe2 N@NC) electrocatalyst excellent nitrate-reduction (high N2 selectivity (≈96%) NO3- conversion (≈86%)). According detailed mechanistic investigations by in situ tests theoretical calculations, strong hydrogenation ability enhanced enrichment system synergistically contribute rapid nitrogen-containing species, increasing reducing occurrence competing hydrogen-evolution side reaction. Moreover, RL-Fe2 N@NC shows stability, retaining good -to-N2 electrocatalysis more than 40 cycles (one cycle per day). paper could guide interfacial design Fe-based composite nanostructures reduction, facilitating shift toward neutrality.

Language: Английский

Citations

94

Lattice Oxygen Redox Mechanisms in the Alkaline Oxygen Evolution Reaction DOI
Xiangrong Ren, Yiyue Zhai, Na Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(32)

Published: March 25, 2024

Abstract Understanding of fundamental mechanism and kinetics the oxygen evolution reaction (OER) is pivotal for designing efficient OER electrocatalysts owing to its key role in electrochemical energy conversion devices. In past few years, lattice oxidation (LOM) arising from anodic redox chemistry has attracted significant attention as it involves a direct O─O coupling thus bypasses thermodynamic limitations traditional adsorbate (AEM). Transition metal‐based oxyhydroxides are generally acknowledged real catalytic phase alkaline media. particular, their low‐dimensional layered structures offer sufficient structural flexibility trigger LOM. Herein, comprehensive overview provided recent advances anion LOM‐based electrocatalysts. Based on analyses electronic structure LOM, strategy proposed activate Possible identification techniques corroboration also reviewed. addition, reconstruction process induced by LOM focused importance multiple situ/operando characterizations highlighted unveil chemical origins To conclude, prospect remaining challenges future opportunities presented.

Language: Английский

Citations

53

An integrated amorphous cobalt phosphoselenide electrocatalyst with high mass activity boosts alkaline overall water splitting DOI
Yue Shi,

Shuanglong Zhou,

Jiaxin Liu

et al.

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 341, P. 123326 - 123326

Published: Sept. 22, 2023

Language: Английский

Citations

50

Electrocatalysts for the oxygen evolution reaction: mechanism, innovative strategies, and beyond DOI
Wen Ning, Xiuling Jiao, Yuguo Xia

et al.

Materials Chemistry Frontiers, Journal Year: 2023, Volume and Issue: 7(20), P. 4833 - 4864

Published: Jan. 1, 2023

This review provides a comprehensive of recent advances in the design OER catalysts. Specifically, it focuses on kinetics and stability catalysts, catalytic mechanism innovative strategies.

Language: Английский

Citations

43

Heteroanion induced structural asymmetricity centered on Ru sites switches the rate-determining step of acid water oxidation DOI
Ding Chen, Hongyu Zhao, Ruohan Yu

et al.

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(5), P. 1885 - 1893

Published: Jan. 1, 2024

The intervening Se induces the structural asymmetricity of Ru-S 6 octahedrons and then regulates electronic structure active Ru site, which possesses excellent acid water oxidation performance as an Ir-free catalyst.

Language: Английский

Citations

32

Trimetallic-organic framework/MXene composite as an oxygen evolution reaction electrocatalyst with elevated intrinsic activity DOI
Mahrokh Nazari, Ali Morsali

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(8), P. 4826 - 4834

Published: Jan. 1, 2024

A composite of trimetallic Fe 2.1 Ni 0.2 Co 0.7 -MIL-88A grown on Ti 3 C 2 T x MXene nanosheets was successfully synthesized and employed as a high-performance OER electrocatalyst with low overpotential 231 mV at 10 mA cm −2 current density in alkaline media.

Language: Английский

Citations

19

MOF-Based Electrocatalysts: An Overview from the Perspective of Structural Design DOI

Nana Sun,

Syed Shoaib Ahmad Shah, Zhongyuan Lin

et al.

Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

The electrocatalytic technique, as an efficient energy storage and conversion technology, has attracted significant attention to address exhaustion environmental pollution. Usually, the activity selectivity of reactions are largely dominated by dynamic process occurring on electrocatalysts. Therefore, high-performance electrocatalysts, which can dominate pathway barrier reactions, great significance for advancement technique. Metal-organic frameworks (MOFs), emerging crystalline porous materials, present structural component advantages including well-defined structure, high surface area, large porosity, diverse components, easy tailorability, demonstrating fantastic potential precise fabrication In this Review, strategies in electrocatalysts based MOF-related materials specifically introduced from aspects catalytic site design microenvironment modulation around sites. Furthermore, representative progress achieved various applications employing MOF-based is systematically summarized, with special emphasis MOFs performance optimization. Finally, remaining challenges future perspectives further highlighted.

Language: Английский

Citations

3

Co−Co Dinuclear Active Sites Dispersed on Zirconium‐doped Heterostructured Co9S8/Co3O4 for High‐current‐density and Durable Acidic Oxygen Evolution DOI
Ligang Wang, Hui Su, Zhuang Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(49)

Published: Oct. 20, 2023

Developing cost-effective and sustainable acidic water oxidation catalysts requires significant advances in material design in-depth mechanism understanding for proton exchange membrane electrolysis. Herein, we developed a single atom regulatory strategy to construct Co-Co dinuclear active sites (DASs) that atomically dispersed zirconium doped Co9 S8 /Co3 O4 heterostructure. The X-ray absorption fine structure elucidated the incorporation of Zr greatly facilitated generation DASs layer with stretching cobalt oxygen bond S-Co-O heterogeneous grain boundaries interfaces, engineering attractive activity significantly reduced overpotential 75 mV at 10 mA cm-2 , breakthrough 500 high current density, splitting stability hours acid, making it one best-performing acid-stable OER non-noble metal materials. optimized catalyst interatomic distance (ca. 2.80 Å) followed oxo-oxo coupling involved obvious bridges on Co (1,090 cm-1 ), confirmed by situ SR-FTIR, XAFS theoretical simulations. Furthermore, major 120,000 g-1 mass density using first reported noble metal-free anode DASs/ZCC PEM-WE 2.14 V was recorded.

Language: Английский

Citations

35

Cobalt‐Doping Induced Formation of Five‐Coordinated Nickel Selenide for Enhanced Ethanol Assisted Overall Water Splitting DOI Open Access
Jinchang Xu,

Jiaxi Ruan,

Yongqi Jian

et al.

Small, Journal Year: 2023, Volume and Issue: 20(11)

Published: Nov. 5, 2023

Abstract To overcome the low efficiency of overall water splitting, highly effective and stable catalysts are in urgent need, especially for anode oxygen evolution reaction (OER). In this case, nickel selenides appear as good candidates to catalyze OER other substitutable anodic reactions due their high electronic conductivity easily tunable structure meet optimized adsorption ability. Herein, an interesting phase transition from hexagonal NiSe (H‐NiSe) rhombohedral (R‐NiSe) induced by doping cobalt atoms is reported. The five‐coordinated R‐NiSe found grow adjacent six‐coordinated H‐NiSe, resulting formation H‐NiSe/R‐NiSe heterostructure. Further characterizations calculations prove reduced splitting energy thus less occupancy t 2g orbits, which can facilitate electron transfer process. As a result, Co 2 ‐NiSe/NF shows satisfying catalytic performance toward OER, hydrogen reaction, (hybrid) splitting. This work proves that trace amounts induce H‐NiSe R‐NiSe. less‐coordinated species reduce enhance performance, might guide rational material design.

Language: Английский

Citations

25

Pumping Electrons from Oxygen-Bridged Cobalt for Low-Charging-Voltage Zn-Air Batteries DOI

Yuchao Wang,

Q. X. Li, Meng Wang

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(43), P. 13653 - 13661

Published: Oct. 21, 2024

Reducing the charging voltage is a prerequisite for improving chargeability and energy efficiency of Zn-air batteries (ZABs). Herein, Fe

Language: Английский

Citations

15