Academic Journal
Engineering bimetallic cluster architectures: Harnessing unique 'remote synergy effect' between Mn and Y for enhanced electrocatalytic oxygen reduction reaction
| Title: | Engineering bimetallic cluster architectures: Harnessing unique 'remote synergy effect' between Mn and Y for enhanced electrocatalytic oxygen reduction reaction |
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| Authors: | Yijian Song, Chao Han, Weijie Li, Xiufeng Yi, Qing Liao, Ji Zhou, Yaqin Zhou, Yitao Ouyang, Yingping Zhang, Qingqing Zheng, Anqiang Pan |
| Source: | eScience, Vol 5, Iss 3, Pp 100332- (2025) |
| Publisher Information: | KeAi Communications Co. Ltd., 2025. |
| Publication Year: | 2025 |
| Collection: | LCC:Mechanical engineering and machinery LCC:Electronics |
| Subject Terms: | Remote synergy effect, Sacrificial protection mechanism, Rare earth metal, Clusters, Unsaturated active sites, Single atoms, Mechanical engineering and machinery, TJ1-1570, Electronics, TK7800-8360 |
| Description: | Integrating single atoms and clusters into a unified catalytic system represents a novel strategy for enhancing catalytic performance. Compared to single-atom catalysts, those incorporating both single atoms and clusters exhibit superior catalytic activity. However, the co-construction of these systems and the mechanisms of their catalytic efficacy remain challenging and poorly understood. In this study, we synthesized a Mn–N–C catalyst featuring MnY clusters and Mn single atoms via a straightforward two-step sintering method. Y doping facilitated the formation of Mn clusters and optimized the d-band center of Mn through a unique synergy effect, thereby reducing energy barriers and enhancing the reaction kinetics. Additionally, the electron-donating ability of Y single atoms promoted the formation of unsaturated Mn–N₃ coordination structures, resulting in excellent oxygen reduction reaction (ORR) performance. Consequently, the MnY/NC catalyst demonstrated a half-wave potential (E₁/₂) of 0.90 V and maintained stability in 0.1 M KOH, outperforming both Mn/NC and Pt/C. This work underscores the potential of rare earth metal doping in transition metals to create stable single-atom and cluster systems, effectively leveraging their synergy effect for superior catalytic performance and validating the concept of the “remote synergy effect” in heterogeneous catalysis. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2667-1417 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2667141724001319; https://doaj.org/toc/2667-1417 |
| DOI: | 10.1016/j.esci.2024.100332 |
| Access URL: | https://doaj.org/article/de47deea46104c15958d075f5cae9985 |
| Accession Number: | edsdoj.47deea46104c15958d075f5cae9985 |
| Database: | Directory of Open Access Journals |
| ISSN: | 26671417 |
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| DOI: | 10.1016/j.esci.2024.100332 |