Enhanced activity and durability of the oxygen reduction catalysts supported on the surface expanded tubular-type carbon nanofiber

Kim, Jiyoung; Im, Ui Su; Peck, Dong Hyun; Yoon, Seong Ho; Park, Ho Seok; Jung, Doo‐Hwan

doi:10.1016/j.apcatb.2017.05.093

Cited by 5 publications

(7 citation statements)

References 16 publications

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“…J. Kim et al 156 developed the tubular type of carbon nanofibers (TCNFs) as cathode catalysts. The graphitized pristine TCNF (G-TCNF) is partially turned into tube shaped fibers via the surface expansion (Figure 7a,b).…”

Section: Pt-supported Nanofiber Catalysts Formentioning

confidence: 99%

“…Comparisons of initial (c) cyclic voltammograms and (d) polarization curves for oxygen reduction reaction of the Pt-deposited TCNF catalysts. [Reprinted with permission from ref . Copyright 2017 Elsevier Inc.] (e) Illustration of the synthesis of G-PCNF hybrid and G-CNF hybrid.…”

Section: Pt-supported Nanofiber Catalysts For Oxygen Reduction Reactionmentioning

confidence: 99%

“…This review has highlighted the following notable works on GNFs-based catalyst for ORR: Work done by Park et al: Pt/CNF catalysts show excellent durability against carbon corrosion under accelerated stress test (AST) conditions in a single cell at the potential of 1.4 V vs RHE. Under the AST conditions, Pt/CNF catalyst lost 45% of the power density, whereas Pt/C lost around 90% after a 130-h durability test at constant voltage of 0.6 V. Work done by Peera et al: Pt/NF-GNF catalyst showed excellent ORR activity, with the Pt ECSA of 124 m 2 g –1 .…”

Section: Conclusion and Future Prospectsmentioning

confidence: 99%

“…Work done by Park et al: Pt/CNF catalysts show excellent durability against carbon corrosion under accelerated stress test (AST) conditions in a single cell at the potential of 1.4 V vs RHE. Under the AST conditions, Pt/CNF catalyst lost 45% of the power density, whereas Pt/C lost around 90% after a 130-h durability test at constant voltage of 0.6 V.…”

Section: Conclusion and Future Prospectsmentioning

confidence: 99%

“…Work done by Park et al:156 Pt/CNF catalysts show excellent durability against carbon corrosion under accelerated stress test (AST) conditions in a single cell at the potential of 1.4 V vs RHE. Under the AST…”

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confidence: 99%

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Carbon Nanofibers as Potential Catalyst Support for Fuel Cell Cathodes: A Review

et al. 2021

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Polymer electrolyte membrane fuel cells (PEMFCs) are a fast growing next-generation energy conversion technology, which hold promising interest for transportation and other applications. Nevertheless, successful commercialization of PEMFCs has been significantly retarded principally due to the high cost and poor durability of Pt/C catalysts used for anodic and cathodic reactions. Under typical fuel cell operating conditions, a traditional Pt/C catalyst is prone to degrade by various mechanisms, such as electrochemical carbon corrosion, which results in detrimental effects on the long-term performance. There have been tremendous efforts undertaken to develop durable carbon supports by introducing graphitic carbon components. In this context, carbon nanofiber supported catalysts have been investigated as highly durable supports for Pt and non-Pt nanoparticles in recent years. We anticipate it is timely to review the developments in this topic. This Review highlights the current progress on the graphitic nanofibers as a catalyst support in terms of morphology, electrocatalytic activity, various functionalization strategies, and so on, specifically focusing on the effect of nanofiber edge carbons and the advantages of surface reconstruction of nanofiber edge carbon into loops with regard to the stability of carbon support and fuel cell performance. We believe this Review stands as a guide for future researchers to figure out a rational design of oxygen reduction reaction catalysts, especially dealing with highly graphitized carbons.

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Section: Pt-supported Nanofiber Catalysts Formentioning

confidence: 99%

Section: Pt-supported Nanofiber Catalysts For Oxygen Reduction Reactionmentioning

confidence: 99%