Synthesis–structure–performance correlation for poly(phenylenediamine)s/iron/carbon non-precious metal catalysts for oxygen reduction reaction

Zhu, Yansong; Zhang, Bingsen; Feng, Zhenbao

doi:10.1016/j.cattod.2015.05.018

Cited by 16 publications

(9 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the basis of above results, we surmise that the isomer effect of the different precursors brought about the difference in ORR activity of the catalyst. [43,58,59] The functional groups of the phenylenediamine isomers are located at different positions, resulting in different steric hindrances of the formed PD-based azo polymer. The PpPD has the smallest steric hindrance, which makes it easier to adsorb iron ions.…”

Section: Resultsmentioning

confidence: 99%

Deciphering the Precursor–Performance Relationship of Single‐Atom Iron Oxygen Electroreduction Catalysts via Isomer Engineering

Hong

Huang

et al. 2022

Small

View full text Add to dashboard Cite

Single atom Fe–nitrogen–carbon (Fe–N–C) catalysts have high catalytic activity and selectivity for the oxygen reduction reaction (ORR), and are possible alternatives for Pt‐based materials. However, the reasonable design and selection of precursors to establish their relationship with Fe–N–C catalyst performance is still a formidable task. Herein, precursors with controllable structures are easily achieved through isomer engineering, with the purpose of regulating the active site density and microscopic morphology of the final electrocatalyst. As‐proof‐of‐concept, phenylenediamine isomers‐based polymers are used as precursors to fabricate Fe–N–C catalysts. The Fe–PpPD‐800 derived from p‐phenylenediamine shows that the best ORR activity with a half‐wave potential (E1/2) reaches 0.892 V vs reversible hydrogen electrode (RHE), which is better than the counterparts derived from o‐phenylenediamine (Fe–PoPD‐800) and m‐phenylenediamine (Fe–PmPD‐800), even surpassing commercial Pt/C (E1/2 = 0.881 V vs RHE). Furthermore, the self‐made zinc–air battery based on Fe–PpPD‐800 achieves high power density and specific capacity up to 242 mW cm−2 and 873 mA h gZn−1 respectively, a stable open circuit voltage of 1.45 V, and excellent cycling stability. This work not only proves the practicability of adjusting the catalytic activity of single‐atom catalysts through isomer engineering, but also provides an approach to understand the relationship between precursors and target catalysts performance.

show abstract

Section: Resultsmentioning

confidence: 99%

Deciphering the Precursor–Performance Relationship of Single‐Atom Iron Oxygen Electroreduction Catalysts via Isomer Engineering

Hong

Huang

et al. 2022

Small

View full text Add to dashboard Cite

show abstract

“…As far as the transition metal precursors are concerned, the most commonly used ones are salts, mainly chlorides, nitrates, sulfates, and acetates. Even though all these types of salts have been reported to be suitable for the catalyst synthesis, some works have shown that the use of one rather than other salts may have an influence on the catalyst features and activity [83][84][85].…”

Section: Methods 1: Catalysts Derived From Carbon Support and Nitrogenmentioning

confidence: 99%

Transition Metal–Nitrogen–Carbon (M–N–C) Catalysts for Oxygen Reduction Reaction. Insights on Synthesis and Performance in Polymer Electrolyte Fuel Cells

Osmieri

2019

ChemEngineering

View full text Add to dashboard Cite

Platinum group metal (PGM)-free catalysts for oxygen reduction reaction (ORR) have attracted increasing interest as potential candidates to replace Pt, in the view of a future widespread commercialization of polymer electrolyte fuel cell (PEFC) devices, especially for automotive applications. Among different types of PGM-free catalysts, M–N–C materials appear to be the most promising ones in terms of activity. These catalysts can be produced using a wide variety of precursors containing C, N, and one (or more) active transition metal (mostly Fe or Co). The catalysts synthesis methods can be very different, even though they usually involve at least one pyrolysis step. In this review, five different synthesis methods are proposed, and described in detail. Several catalysts, produced approximately in the last decade, were analyzed in terms of performance in rotating disc electrode (RDE), and in H2/O2 or H2/air PEFC. The catalysts are subdivided in five different categories corresponding to the five synthesis methods described, and the RDE and PEFC performance is put in relation with the synthesis method.

show abstract

“…These In this report, better metal dispersion and higher pyridinic N content led to the formation of more FeN x sites and higher activity. 102 Another group used a copolymer network based on 2,4,6-tripyrrole-1,3,5-triazine and pyrrole along with iron acetate and found that better activity was associated with the increased presence of FeN x sites created by the N-rich polymer. 103 The influence of the Fe precursor salt was investigated by mixing different salts with polyaniline and carbon black.…”

Section: Catalyst Preparation and Performancementioning

confidence: 99%

Nonprecious Metal Catalysts for Oxygen Reduction in Heterogeneous Aqueous Systems

2018

View full text Add to dashboard Cite

A comprehensive review of recent advances in the field of oxygen reduction electrocatalysis utilizing nonprecious metal (NPM) catalysts is presented. Progress in the synthesis and characterization of pyrolyzed catalysts, based primarily on the transition metals Fe and Co with sources of N and C, is summarized. Several synthetic strategies to improve the catalytic activity for the oxygen reduction reaction (ORR) are highlighted. Recent work to explain the active-site structures and the ORR mechanism on pyrolyzed NPM catalysts is discussed. Additionally, the recent application of Cu-based catalysts for the ORR is reviewed. Suggestions and direction for future research to develop and understand NPM catalysts with enhanced ORR activity are provided.

show abstract

Synthesis–structure–performance correlation for poly(phenylenediamine)s/iron/carbon non-precious metal catalysts for oxygen reduction reaction

Cited by 16 publications

References 38 publications

Deciphering the Precursor–Performance Relationship of Single‐Atom Iron Oxygen Electroreduction Catalysts via Isomer Engineering

Deciphering the Precursor–Performance Relationship of Single‐Atom Iron Oxygen Electroreduction Catalysts via Isomer Engineering

Transition Metal–Nitrogen–Carbon (M–N–C) Catalysts for Oxygen Reduction Reaction. Insights on Synthesis and Performance in Polymer Electrolyte Fuel Cells

Nonprecious Metal Catalysts for Oxygen Reduction in Heterogeneous Aqueous Systems

Contact Info

Product

Resources

About