Modulating the Local Coordination Environment of M‐Nx Single‐Atom Site for Enhanced Electrocatalytic Oxygen Reduction DOI Open Access

Jirong Bai,

Zhuangzhi Sun,

Hanyu Zhang

et al.

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

Published: Nov. 4, 2024

Abstract Efficient, durable, and economical oxygen reduction catalysts are key for practical applications such as fuel cells metal–air batteries. Single atom (SACs) have attracted sustained widespread attention owing to their unique electronic properties exceptional atomic utilization, positioning them promising electrocatalysts in energy conversion storage. However, the symmetric charge distribution of metal site M‐N 4 configuration SACs is not conducive electron transfer transport electrocatalytic reactions, resulting a low adsorption reaction (ORR) related species (*OH, *O, *OOH), which severely limits intrinsic activity electrocatalysts. To overcome this limitation improve durability, heteroatom doping can effectively modulate local coordination environment (LCE) atom, including coordinating atoms, shells number. These modifications significantly improved performance carbon supported with ORR. Based on this, thorough summary major progress made recent years adjusting LCE through heteroatoms provided perspective future development offered here.

Language: Английский

Challenges and Opportunities for Single‐Atom Electrocatalysts: From Lab‐Scale Research to Potential Industry‐Level Applications DOI Creative Commons
Chen Jia, Qian Sun, Ruirui Liu

et al.

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

Published: June 13, 2024

Single-atom electrocatalysts (SACs) are a class of promising materials for driving electrochemical energy conversion reactions due to their intrinsic advantages, including maximum metal utilization, well-defined active structures, and strong interface effects. However, SACs have not reached full commercialization broad industrial applications. This review summarizes recent research achievements in the design crucial electrocatalytic on sites, coordination, substrates, as well synthesis methods. The key challenges facing activity, selectivity, stability, scalability, highlighted. Furthermore, it is pointed out new strategies address these increasing activity enhancing utilization improving optimizing local environment, developing fabrication techniques, leveraging insights from theoretical studies, expanding potential Finally, views offered future direction single-atom electrocatalysis toward commercialization.

Language: Английский

Citations

31
Rigid interface induced structural transformation in Zn, Ni-ZIF for enhanced electromagnetic wave attenuation DOI
Xueting Zhang,

Shaocong Zhong,

Pianpian Zhang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159266 - 159266

Published: Jan. 5, 2025

Language: Английский

Citations

8
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

8
Modulating the Electronic Properties of Single Ni Atom Catalyst via First‐Shell Coordination Engineering to Boost Electrocatalytic Flue Gas CO2 Reduction DOI Open Access
Zhiyuan Wang, Zhen Chen, Xin Du

et al.

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

Published: Jan. 10, 2025

Abstract Electrochemical converting CO 2 to via single atom catalyst is an effective strategy for reducing concentration in the atmosphere and achieving a carbon‐neutral cycle. However, relatively low industrial processes large energy barriers activating severely obstruct actual application. Reasonably modulating coordination shell of active center enhance activity catalysts. Herein, well‐designed single‐atom electrocatalyst Ni‐N 3 S 1 developed large‐scale synthesis strategy. The constructed S‐C exhibits superior catalytic than 4 ‐C conversion H‐type cells, industrial‐level current density with excellent durability at wide pH range can be achieved gas‐diffusion flow cells. Experimental results functional theory (DFT) calculation demonstrate that introducing electronegative significantly regulate electronic structure site, promoting adsorption capacity decreasing barrier *COOH formation, thus larger size flexibility sulfur mitigate nickel agglomeration stability catalyst. This work provides designing highly catalysts electrocatalysis reactive sites.

Language: Английский

Citations

3
Facile Microwave Synthesis of Kilogram‐Scale Electrocatalysts with Nanocarbons Bridged Cobalt Active Sites for Enhanced Oxygen Electrocatalysis DOI
Junfeng Huang, Xiaoxue Xu, Yusheng Yan

et al.

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

Published: March 30, 2025

Abstract Oxygen reductions and evolution reactions (ORR/OER) are pivotal electrochemical processes in fuel cells metal‐air batteries, yet the rapid, large‐scale production of efficient ORR/OER electrocatalysts remains challenging. Herein, a groundbreaking microwave‐synthesis strategy is presented that enables rapid facile preparation kilogram‐scale electrocatalysts. The unique microwave irradiation generates instantaneous thermal energy, facilitating formation nano‐carbon bridges interconnect high‐density active sites comprising cobalt single atoms nanoparticles. This innovative architectural configuration significantly enhances kinetics electron/mass transfer maximizing accessibility sites. optimized carbon‐bridged catalyst (CBCo‐800) demonstrates commendable half‐wave potential ( E 1/2 ) 0.86 V versus RHE minimal overpotential difference (Δ 0.696 V. Furthermore, lab‐assembled zinc‐air battery utilizing CBCo‐800 achieved great specific capacity 794 mAh g −1 sustained over 650 h, outperforming commercial Pt/C RuO 2 catalysts. Density functional theory (DFT) calculations elucidate nanocarbon bridge between dual‐active boosts oxygen activation optimizes adsorption/desorption dynamics *OH/*OOH intermediates, thereby lowering energy barriers for ORR/OER. study offers solution producing site materials, also establishes robust platform mass high‐performance

Language: Английский

Citations

3
Cyclodextrin Metal–Organic Framework Functionalized Carbon Materials with Optimized Interface Electronics and Selective Supramolecular Channels for High‐Performance Lithium–Sulfur Batteries DOI Open Access

Bingxin Sun,

Dan Wang, Yuxuan Jiang

et al.

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

Published: Nov. 6, 2024

During the reaction process in lithium-sulfur batteries, Lewis acidic lithium polysulfides (LiPSs) affect ion distribution and overall electrolyte stability, degrading battery performance product (e.g., Li

Language: Английский

Citations

17
Metal–Organic Frameworks Derived Carbon‐Supported Metal Electrocatalysts for Energy‐Related Reduction Reactions DOI Creative Commons
Jiawei Zhu, Xue Feng Lu, Deyan Luan

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(38)

Published: June 21, 2024

Electrochemical reduction reactions, as cathodic processes in many energy-related devices, significantly impact the overall efficiency determined mainly by performance of electrocatalysts. Metal-organic frameworks (MOFs) derived carbon-supported metal materials have become one star electrocatalysts due to their tunable structure and composition through ligand design screening. However, for different electroreduction required active species vary phase component, electronic state, catalytic center configuration, hence requiring effective customization. From this perspective, review comprehensively analyzes structural principles, loading strategies, practical performance, complex mechanisms, thereby providing insights guidance future rational such catalysts.

Language: Английский

Citations

15
ZIF-67 derivatives in electrocatalysis DOI

Guoliang Gao,

Chengzhi Xiao,

Rongrong Zhang

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216296 - 216296

Published: Nov. 2, 2024

Language: Английский

Citations

15
P-Block Aluminum Single-Atom Catalyst for Electrocatalytic CO2 Reduction with High Intrinsic Activity DOI

Zhanshuai Ma,

B.X. Wang, Yang Xiang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(42), P. 29140 - 29149

Published: Oct. 9, 2024

Atomically dispersed transition metal sites on nitrogen-doped carbon catalysts hold great potential for the electrochemical CO

Language: Английский

Citations

13
Incorporation of Pd Single‐atom Sites in Perovskite with an Excellent Selectivity toward Photocatalytic Semihydrogenation of Alkynes DOI

Baoying Yang,

Kunlong Liu, Yuhui Ma

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: July 27, 2024

Abstract Semihydrogenation is a crucial industrial process. Noble metals such as Pd have been extensively studied in semihydrogenation reactions, owing to their unique catalytic activity toward hydrogen activation. However, the overhydrogenation of alkenes alkanes often happens due rather strong adsorption on active phases. Herein, we demonstrate that incorporation phases single‐atom sites perovskite lattices SrTiO 3 can greatly alternate electronic structure and coordination environment facilitate desorption than further hydrogenation. Furthermore, incorporated be well stabilized without sintering by host–guest interaction with during activation H species hydrogenation reactions. As result, (Pd‐SrTiO ) exhibits an excellent time‐independent selectivity (>99.9 %) robust durability for photocatalytic phenylacetylene styrene. This strategy based will broad implications development high‐performance photocatalysts selective

Language: Английский

Citations

10