Cited by Progress of synergistic oxygen electrocatalysis between single atoms and nanoparticles/clusters

Elucidating the Microenvironment Structure‐Activity Relationship of Cu Single‐Site Catalysts via Unsaturated N,O‐Coordination for Singlet Oxygen Production DOI

Pengfei Li, Yang Deng, Haiyuan Wang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: June 28, 2024

Abstract Understanding the microenvironment structure‐activity relationship of singlet‐atom catalysts (SACs) is imperative for development high‐performance photocatalytic devices. However, challenge remains to finely regulate coordination SACs. Herein, single‐atom N x ─Cu─O 4‐x ( = 1–4) photocatalysts with different environments are successfully prepared based on pre‐design reticular supramolecular covalent organic frameworks (COFs) direct 1 O 2 production from . The results show that high activity Cu SACs closely related N,O‐coordination microenvironment, which primarily ascribed electrophilicity N, atom. electron configuration 3‐ Cu‐O endows photocatalyst enhanced charge transfer capability and nearest D‐band center Fermi level. “end‐on” type adsorption at 3 active site can promote breaking Cu─O bonds rather than O─O bonds. As a result, ‐Cu‐O @COF exhibits most optimal formation desorption energies intermediates •OOH, provides an advantageous reaction pathway fewer steps lower barrier production. This work highlights long‐term applications.

Language: Английский

Citations

Mesoporous Nitrogen-Doped Carbon Support from ZIF-8 for Pt Catalysts in Oxygen Reduction Reaction DOI

S.-J. Park,

Jong Gyeong Kim,

Youngin Cho

et al.

Nanomaterials, Journal Year: 2025, Volume and Issue: 15(2), P. 128 - 128

Published: Jan. 16, 2025

Zeolitic imidazolate framework-8 (ZIF-8) has been extensively studied as a precursor for nitrogen-doped carbon (NC) materials due to its high surface area, tunable porosity, and adjustable nitrogen content. However, the intrinsic microporous structure of ZIF-8 limits mass transport accessibility reactants active sites, reducing effectiveness in electrochemical applications. In this study, soft templating approach using triblock copolymer was used prepare mesoporous ZIF-8-derived NC (Meso-ZIF-NC) samples. The hierarchical porous investigated by varying ratios Pluronic F-127, NaClO4, toluene. resulting Meso-ZIF-NC exhibited widespread pore size distribution with an enhanced mesopore (2–50 nm) volume according composition reaction mixtures. Pt nanoparticles were uniformly dispersed on form Pt/Meso-ZIF-NC catalysts, which presented area improved oxygen reduction activity. study highlights important role doping enhancing catalytic performance, providing pathway advanced fuel cell catalyst design.

Language: Английский

Citations

Recent advances in metal-organic frameworks derived electrocatalysts for oxygen reduction reaction DOI

Siqi Wu,

Xinyue Qu,

Jiawei Zhu

et al.

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 970, P. 172518 - 172518

Published: Oct. 13, 2023

Language: Английский

Citations

Anchoring covalent organic polymers on supports with tunable functional groups boosting the oxygen reduction performance under pH-universal conditions DOI

Chonghong Shu,

Wenlin Zhang,

Jiayu Zhan

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 661, P. 923 - 929

Published: Feb. 3, 2024

Language: Английский

Citations

Activity Origin and Catalytic Mechanism of the M–N–C Catalysts for the Oxygen Reduction Reaction DOI

Cuizhu Ye, Lan Zhang, Yi Shen

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(7), P. 2858 - 2887

Published: June 7, 2024

Oxygen reduction reaction (ORR), involving either a two-electron (2e–) pathway or four-electron (4e–) pathway, is an important in energy conversion and storage systems. It well-known that metal–nitrogen–carbon (M–N–C) catalysts, as emerging state-of-the-art electrocatalysts, are applied to fuel cells via the 4e– (e.g., Fe–N–C) while generating hydrogen peroxide 2e– Co–N–C). However, effects of MNx C–N species on catalytic activity ORR require thorough clarification. Especially, real active sites M–N–C configuration long-standing conundrum. In this review, latest advanced catalysts were categorized according pathways moieties. Then, coordination atoms, N-coordinated structures, pH discussed. The detection quantification by situ Raman spectroscopy electrochemical techniques summarized. Finally, opportunities challenges for with efficient highlighted.

Language: Английский

Citations

Research Progress on Atomically Dispersed Fe-N-C Catalysts for the Oxygen Reduction Reaction DOI

Yuebin Lian,

Jinnan Xu,

Wangkai Zhou

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(4), P. 771 - 771

Published: Feb. 7, 2024

The efficiency and performance of proton exchange membrane fuel cells (PEMFCs) are primarily influenced by ORR electrocatalysts. In recent years, atomically dispersed metal–nitrogen–carbon (M-N-C) catalysts have gained significant attention due to their high active center density, atomic utilization, activity. These now considered the preferred alternative traditional noble metal unique properties M-N-C anticipated enhance energy conversion lower manufacturing cost entire system, thereby facilitating commercialization widespread application cell technology. This article initially delves into origin degradation mechanisms Fe-N-C from both experimental theoretical perspectives. Building on this foundation, focus shifts strategies aimed at enhancing activity durability catalysts. encompass use bimetallic atoms, clusters, heteroatoms (B, S, P), morphology regulation optimize catalytic sites. concludes detailing current challenges future prospects

Language: Английский

Citations

Research Progress of Atomically Dispersed Fe–N–C Catalysts towards Oxygen Reduction Reaction DOI

Yuebin Lian,

Jinnan Xu,

Wangkai Zhou

et al.

Published: Jan. 13, 2024

The efficiency and performance of Proton Exchange Membrane Fuel Cells (PEMFCs) are primarily influenced by ORR electrocatalysts. In recent years, atomically dispersed met-al-nitrogen-carbon (M-N-C) catalysts have gained significant attention due to their high active center density, atomic utilization, activity. These now considered the preferred alternative traditional noble metal unique properties M-N-C anticipated enhance energy conversion lower manufac-turing cost entire system, thereby facilitating commercialization widespread ap-plication fuel cell technology. This article initially delves into origin degradation mechanisms Fe-N-C from both experimental theoretical perspectives. Building on this foundation, focus shifts strategies aimed at enhancing activity durability catalysts. encompass use bi-metallic atoms, clusters, heteroatoms (B, S, P), morphology regulation optimize catalytic sites. concludes detailing current challenges future pro-spects

Language: Английский

Citations

Performance Optimization by Antioxidant Strategies for Proton Exchange Membrane Fuel Cells: Recent Progress and Future DOI

Xianghui Yu, Shuxing Bai,

Qinzhu Li

et al.

EnergyChem, Journal Year: 2024, Volume and Issue: unknown, P. 100142 - 100142

Published: Dec. 1, 2024

Language: Английский

Citations

Tunable electronic structures and oxygen electrocatalytic mechanisms in Fe-N-C catalysts doped with B, P, S, and O heteroatoms DOI

Yue Zhang, Jianguang Feng, Chenchen Ma

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162439 - 162439

Published: Jan. 1, 2025

Language: Английский

Citations

Soft doping of phosphorus into cobalt nanoparticle-embedded nestlike nitrogen-rich carbon nanotube clusters for efficient oxygen reduction DOI

Jiebing Ai,

Naiyu Wang, Fengyun Li

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162448 - 162448

Published: Jan. 1, 2025

Language: Английский

Citations