Nanocrystal supracrystal-derived atomically dispersed Mn-Fe catalysts with enhanced oxygen reduction activity

Wang, Biwei; Zou, Jialin; Shen, Xiaochen; Yang, Yongliang; Hu, Guangzhi; Li, Wei; Peng, Zhenmeng; Banham, Dustin; Dong, Angang; Zhao, Dongyuan

doi:10.1016/j.nanoen.2019.06.047

Cited by 92 publications

(72 citation statements)

References 40 publications

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“…These sites usually exhibit synergistic effects. Several dual metal sites have demonstrated their superiority in energy‐related electrocatalysis including N‐coordinated Co–Fe, Co–Pt, Zn–Co, and Fe–Mn for the ORR, Co–Pt, and Pt–Ru for the HER, and Fe–Ni for the CO 2 RR …”

Section: Engineering Sacs On Carbon‐based Substratesmentioning

confidence: 99%

“…Synergism of Dual Metal Sites : The construction of dual metal sites has been demonstrated to be highly effective for enhanced ORR performance. A series of N‐coordinated dual metal sites, including Co–Fe, Co–Pt, Zn–Co, and Fe–Mn sites, have been developed. Their ORR activities are usually higher than the corresponding single metal sites.…”

Section: Atomically Dispersed Single Metal Site Electrocatalysis For mentioning

confidence: 99%

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Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Zhu

Sokolowski

Song

et al. 2019

Advanced Energy Materials

281

240

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Carbon‐based heteroatom‐coordinated single‐atom catalysts (SACs) are promising candidates for energy‐related electrocatalysts because of their low‐cost, tunable catalytic activity/selectivity, and relatively homogeneous morphologies. Unique interactions between single metal sites and their surrounding coordination environments play a significant role in modulating the electronic structure of the metal centers, leading to unusual scaling relationships, new reaction mechanisms, and improved catalytic performance. This review summarizes recent advancements in engineering of the local coordination environment of SACs for improved electrocatalytic performance for several crucial energy‐convention electrochemical reactions: oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, CO2 reduction reaction, and nitrogen reduction reaction. Various engineering strategies including heteroatom‐doping, changing the location of SACs on their support, introducing external ligands, and constructing dual metal sites are comprehensively discussed. The controllable synthetic methods and the activity enhancement mechanism of state‐of‐the‐art SACs are also highlighted. Recent achievements in the electronic modification of SACs will provide an understanding of the structure–activity relationship for the rational design of advanced electrocatalysts.

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Section: Engineering Sacs On Carbon‐based Substratesmentioning

confidence: 99%

Section: Atomically Dispersed Single Metal Site Electrocatalysis For mentioning

confidence: 99%

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Zhu

Sokolowski

Song

et al. 2019

Advanced Energy Materials

281

240

View full text Add to dashboard Cite

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“…Furthermore, both metal sites can serve as active centers during ORR, leading to new reaction pathways with lower reaction barriers. Various dual metal sites have been reported with enhanced ORR performance, including Fe‐Co, 59–63 Fe‐Mn, 64,65 and Fe‐Fe 66 …”

Section: Control Over Fen X Active Sites In Fe‐n‐c Materialsmentioning

confidence: 99%

Engineering local coordination environments and site densities for high‐performance Fe‐N‐C oxygen reduction reaction electrocatalysis

et al. 2021

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Fe‐N‐C catalysts represent very promising cathode catalysts for polymer electrolyte fuel cells, owing to their outstanding activity for the oxygen reduction reaction (ORR), especially in alkaline media. In this review, we summarize recent advances in the design and synthesis of Fe‐N‐C catalysts rich in highly dispersed FeN x active sites. Special emphasis is placed on emerging strategies for tuning the electronic structure of the Fe atoms to enhance the ORR activity, and also maximizing the surface concentration of FeN x sites that are catalytically accessible during ORR. While great progress has been made over the past 5 years in the development of Fe‐N‐C catalyst for ORR, significant technical obstacles still need to be overcome to enable the large‐scale application of Fe‐N‐C materials as cathode catalysts in real‐world fuel cells.

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“…[ 23 ] The isolated dual‐atom pairs consist of isolated heteroatom metal centers coordinated with surrounding chelating atoms (i.e., N and S) or vacancies. [ 14,123–127 ] For example, Zhang et al. developed an adsorption‐calcination strategy to prepare N‐doped porous carbon‐supported atomically dispersed CoN 4 and FeN 4 active sites (FeCo‐ISAs/CN).…”

Section: Electrochemical Applications Of Macsmentioning

confidence: 99%

Multiatom Catalysts for Energy‐Related Electrocatalysis

Peng

Feng

Yan

et al. 2020

Advanced Sustainable Systems

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Multiatom catalysts (MACs) with isolated monodisperse active sites comprising two to tens of metal atoms have attracted intensive research attention and industrial interest. With the combination of high atom utilization and well‐defined molecule‐like electronic structure, MACs show great potential for applications in a wide range of electrochemical catalytic reactions. This review aims to discuss the recent progress of MACs in energy‐related electrocatalysis. Critical issues, including the synthesis and characterization of the MACs, will be showcased. Moreover, recent advances are highlighted in the design and synthesis of MACs with a well‐controlled structure and composition to achieve enhanced catalytic performance in energy‐related electrocatalysis. Current challenges and future prospects for MACs are also presented to shed light on the rational design of MACs as potential industrialized catalysts in the future.

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Nanocrystal supracrystal-derived atomically dispersed Mn-Fe catalysts with enhanced oxygen reduction activity

Cited by 92 publications

References 40 publications

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Engineering Local Coordination Environments of Atomically Dispersed and Heteroatom‐Coordinated Single Metal Site Electrocatalysts for Clean Energy‐Conversion

Engineering local coordination environments and site densities for high‐performance Fe‐N‐C oxygen reduction reaction electrocatalysis

Multiatom Catalysts for Energy‐Related Electrocatalysis

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