Atomic Fe-Zn dual-metal sites for high-efficiency pH-universal oxygen reduction catalysis

Xu, Jie; Lai, Shuhua; Qi, Defeng; Hu, Min; Peng, Xianyun; Liu, Yifan; Liu, Wei; Hu, Guangzhi; Xu, Heng; Li, Fan; Li, Chao; He, Jia; Zhuo, Longchao; Sun, Jiaqiang; Qiu, Yuan; Zhang, Shusheng; Luo, Jun; Liu, Xijun

doi:10.1007/s12274-020-3186-x

Cited by 173 publications

(117 citation statements)

References 56 publications

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“…The combination of transition metals (TMs) with carbon-based materials, such as graphene and carbon nanotubes (CNTs), also produced highly efficient catalysts with high electric conductivities and superior stability in various electrolytes [40][41][42][43][44][45][46][47][48][49][50][51][52][53]. Studies revealed that well-structured graphene materials are less efficient catalysts due to their inert and low polar surface, whereas high defect carbon-based materials have superior electrocatalytic properties [54][55][56].…”

Section: Introductionmentioning

confidence: 99%

Development of an Efficient Bi-Functional Catalyst made of a Novel Hybrid Material for Rechargeable Zn-Air Battery

Wang¹,

Bendt²,

Schulz³

2021

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One-pot synthesis of mesoporous hybrid material consisting of Mn-Co/CoO nanoparticles encapsulated in an N-doped graphene shell decorated with Mo2C nanoparticles (Mo2C-NC@Mn-Co/CoO) was reported. The Mn and Mo components synergistically refined the graphitized carbons due to the interactions with N and C atoms while promoting the stability of the Co/CoO nanoparticles. These components exhibited a beneficial effect on the dispersion of the active metal/metal oxide nanoparticles and the formation of a mesoporous structure under high-temperature conditions, which together led to optimized oxygen adsorption/desorption capabilities as well as mass transport properties. The hybrid material showed high bifunctional performance for both oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), as well as promising catalytic properties as the air electrode in a zinc-air battery, featuring superior long-term cycle stability comparable to that of Pt-C/RuO2 materials.

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Section: Introductionmentioning

confidence: 99%

Development of an Efficient Bi-Functional Catalyst made of a Novel Hybrid Material for Rechargeable Zn-Air Battery

Wang¹,

Bendt²,

Schulz³

2021

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“…Liu et.al developed Fe/Zn atomic pairs DACs as ORR catalyst (Fe–Zn–SA/NC). [ 105 ] In comparison to the Fe–SA/NC and Zn–SA/NC, Fe–Zn–SA/NC exhibited an enhanced ORR activity with E 1/2 of 0.78V RHE , closed to commercial Pt/C catalyst (0.80V RHE ). They suggested that this pronounced enhancement is ascribed to the synergistic effect among Fe–Zn–N 6 , Fe‐N 4 , and Zn–N 4 sites.…”

Section: Atomically Dispersed Metal–nitrogen–carbon Catalysts For Acidic Orrmentioning

confidence: 99%

Advanced Atomically Dispersed Metal–Nitrogen–Carbon Catalysts Toward Cathodic Oxygen Reduction in PEM Fuel Cells

Deng

Luo

Chi

et al. 2021

Advanced Energy Materials

136

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Proton exchange membrane fuel cells (PEMFCs) are a highly efficient hydrogen energy conversion technology, which shows great potential in mitigating carbon emissions and the energy crisis. Currently, to accelerate the kinetics of the oxygen reduction reaction (ORR) required for PEMFCs, extensive utilization of expensive and rare platinum‐based catalysts are required at the cathodic side, impeding their large‐scale commercialization. In response to this issue, atomically dispersed metal–nitrogen–carbon (M–N–C) catalysts with cost‐effectiveness, encouraging activity, and unique advantages (e.g., homogeneous activity sites, high atom efficiency, and intrinsic activity) have been widely investigated. Considerable progress in this domain has been witnessed in the past decade. Herein, a comprehensive summary of recent development in atomically dispersed M–N–C catalysts for the ORR under acidic conditions and of their application in the membrane electrode assembly (MEA) of PEM fuel cells, are presented. The ORR mechanisms, composition, and operating principles of PEMFCs are introduced. Thereafter, atomically dispersed M–N–C catalysts towards improved acidic ORR and MEA performance is summarized in detail, and improvement strategies for MEA performance and stability are systematically analyzed. Finally, remaining challenges and significant research directions for design and development of high‐performance atomically dispersed M–N–C catalysts and MEA are discussed.

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“…The authors declare no competing financial interest. N/E-HPC-900 0.1 M KOH 0.99 0.85 [29] Co@NCBC 0.1 M KOH 0.98 0.86 [30] AWC-1 0.1 M KOH 0.92 0.85 [36] NiFe@N-CFs 0.1 M KOH 0.94 0.82 [26] Fe−N−C/rGO) 0.1 M KOH 0.94 0.81 [33] BC-Ce-2 0.1 M KOH 0.90 0.84 [37] Co-Fe-S@NSRPC 0.1 M KOH -0.80 [27] SA-Fe/NHPC 0.1 M KOH -0.87 [38] Co/Co3O4@HPCNF-50 0.1 M KOH 0.92 0.82 [39] FeNC-D0.5 0.1 M KOH -0.87 [40] AC/TBC(O) 0.1 M KOH 0.85 0.74 [41] Fe-Zn-SA/NC 0.1 M KOH -0.85 [42] CoOP@bio-C 0.1 M KOH 0.91 0.81 [43] CoTBrPP@bio-C 0. Co/Co3O4@HPCNF-50 1 102.5 [58] S,N-Fe/N/C-CNT 1.25 102.7 [59] CoTBrPP@bio-C 1 100 [44] Fe/N/C@BMZIF 1 235 [60] Cu@Fe-N-C 1 92 [61] FeSA/FeONC/NSC 1 179.0 [62]…”

Section: Conflicts Of Interestmentioning

confidence: 99%

Biomass wood-derived efficient Fe–N–C catalysts for oxygen reduction reaction

Han

Leng

et al. 2021

J Mater Sci

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Efficient and low cost electrocatalysts for oxygen reduction reaction (ORR) was the key for scalable application of metal-air batteries and fuel cells.Herein, iron-based nitrogen doped carbon catalysts (Fe-N-C wood ) was prepared, using hydrothermal-pyrolysis treated wood-derived nitrogen doped carbon as the support. This support possessed large specific surface area and macro-meso-micro hierarchical porous networks, ensuring fluent mass transfer of electrolyte and oxygen species. In the ORR electrochemical test, Fe-N-C wood catalyst showed an excellent activity, with a half-wave potential of 0.90 V in 0.1 M KOH, and a half-wave potential of 0.70 V in 0.1 M HClO 4 . Moreover, durability tests illustrated that Fe-N-C wood possessed high stability and methanol tolerance. The Fe-N-C wood based Zn-air battery delivered a peak power density of 231 mW cm -2 , suggesting its potential applications in sustainable energy conversion systems.

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Atomic Fe-Zn dual-metal sites for high-efficiency pH-universal oxygen reduction catalysis

Cited by 173 publications

References 56 publications

Development of an Efficient Bi-Functional Catalyst made of a Novel Hybrid Material for Rechargeable Zn-Air Battery

Development of an Efficient Bi-Functional Catalyst made of a Novel Hybrid Material for Rechargeable Zn-Air Battery

Advanced Atomically Dispersed Metal–Nitrogen–Carbon Catalysts Toward Cathodic Oxygen Reduction in PEM Fuel Cells

Biomass wood-derived efficient Fe–N–C catalysts for oxygen reduction reaction

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