2022
DOI: 10.3390/ma15134560
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The Oxygen Reduction Performance of Pt Supported on the Hybrid of Porous Carbon Nanofibers and Carbon Black

Abstract: Proton exchange membrane fuel cells (PEMFCs) represent an outstanding clean energy alternative for next-generation power sources. The PEMFC’s performance is mainly determined by the sluggish oxygen reduction reaction (ORR) that occurs in its cathode Therefore, the use of electrocatalysts with high electrocatalytic activity and stability for improving the ORR has been a vital direction for the commercialization of PEMFCs. In this article, porous carbon nanofibers (PCNFs) based on a polyacrylonitrile/polymethyl … Show more

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“…The most commonly used catalyst in PEMFCs is platinum on various carbon support materials, which is used in both the anode and cathode because of its high catalytic activity toward the hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) [6,[17][18][19][21][22][23][24][25]. Pt is also characterized by its durability in acidic environments under high potential [23].…”
Section: Introductionmentioning
confidence: 99%
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“…The most commonly used catalyst in PEMFCs is platinum on various carbon support materials, which is used in both the anode and cathode because of its high catalytic activity toward the hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) [6,[17][18][19][21][22][23][24][25]. Pt is also characterized by its durability in acidic environments under high potential [23].…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, many research studies have been dedicated to reducing the Pt loading at the cathode without performance loss of PEMFCs or to finding an alternative catalyst material [4,6,21]. The reduction of Pt loading on various carbon supports can be achieved by combining Pt with other metals [21] as well as by modifications of the various chemical and physical methods of Pt deposition [22][23][24][25][26]. Direct deposition of Pt onto carbon supports resulting in a thin catalyst layer and good dispersion of formed Pt nanoparticles (PtNPs) is of particular interest because it should allow for a high Pt mass-specific power density to be achieved [27].…”
Section: Introductionmentioning
confidence: 99%