Optimization of platinum loading on partially fluorinated carbon catalysts for enhanced proton exchange membrane fuel cell performance

Glass, Dean E.; Galvan, Vicente; Iulliucci, Marc; Prakash, G. K. Surya

doi:10.1016/j.jpowsour.2022.231725

Cited by 8 publications

(4 citation statements)

References 53 publications

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“…120,121 Carbon with F serving (CF x ) as a supported electrode is also an effective approach to manage water transport due to greater O 2 diffusion to the catalyst as well as better hydrophobicity of the fluorine-doped carrier. 122 A mixed hydrophilic-hydrophobic dual CL retains water through a hydrophilic layer at low humidity and can drain water through a hydrophobic layer at a high RH and avoid flooding, which greatly improves the performance of PEMFCs, especially under high current density (Fig. 6h).…”

Section: Carbon Support Modificationmentioning

confidence: 99%

Optimized mass transfer in a Pt-based cathode catalyst layer for PEM fuel cells

Wang,

Teng,

Zaman

et al. 2024

Green Chem.

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Section: Carbon Support Modificationmentioning

confidence: 99%

Optimized mass transfer in a Pt-based cathode catalyst layer for PEM fuel cells

Wang,

Teng,

Zaman

et al. 2024

Green Chem.

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“…The fluorination of carbon helps in enhancing the stability of the catalysts under acidic conditions of use. [ 52 ]…”

Section: Fluorination Of Porous Carbonaceous Materialsmentioning

confidence: 99%

“…The fluorination of carbon helps in enhancing the stability of the catalysts under acidic conditions of use. [52] Third and importantly, fluorination is also known to magnify hydrophobicity. The enhancement of hydrophilicity of porous carbon materials can occur with fluorination under certain conditions, that is, applying gaseous diluted fluorine with nitrogen.…”

Section: Expected Benefitsmentioning

confidence: 99%

Fluorination and its Effects on Electrocatalysts for Low‐Temperature Fuel Cells

Chatenet

Berthon‐Fabry

Ahmad

et al. 2023

Advanced Energy Materials

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The benefits of covalent grafting of fluorine atoms onto carbonaceous materials are described for the design of new electrocatalysts for low‐temperature fuel cells. In order to obtain the best results, the fluorination conditions must be carefully chosen according to the physicochemical properties of the starting materials (specific surface area, pore size distribution, crystallinity, and doping). By describing the main fluorination routes, the article aims to help in the choice of efficient treatment conditions. The effects of fluorination on the performance of the platinum group metal (PGM)‐based catalyst and the non‐PGM‐based electrocatalyst are discussed. Finally, future research prospects and technical challenges of fluorination for fuel cells are proposed.

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“…[ 3–5 ] On the one hand, the researchers have increased the load amount of the noble metal catalyst and the electrode area to increase the rated powers. [ 6 ] On the other hand, many efforts have been made to explore single‐atoms (SAs) and metal alloy [ 7–9 ] catalysts to obtain higher electrocatalytic activity. For example, the Fe‐N@Ni‐HCFs ORR electrocatalyst developed by Lu et al reached a remarkable power density of 172.2 mW cm −2 .…”

Section: Introductionmentioning

confidence: 99%

Bimetallic‐MOF Derived Carbon with Single Pt Anchored C4 Atomic Group Constructing Super Fuel Cell with Ultrahigh Power Density And Self‐Change Ability

Chai,

Song,

Kumar

et al. 2023

Advanced Materials

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Pursuing high power density with low platinum catalysts loading is a huge challenge for developing high‐performance fuel cells (FCs). Herein, we propose a new super fuel cell (SFC) with ultrahigh output power via specific electric double‐layer capacitance (EDLC) + ORR parallel discharge, which is achieved using the newly prepared catalyst, single‐atomic platinum on bimetallic MOF‐derived hollow porous carbon nanorods (PtSA/HPCNR). The PtSA‐1.74/HPCNR‐based SFC has a 3.4‐time higher transient specific power density and 13.3‐time longer discharge time with unique in‐situ self‐charge and energy storage ability than 20% Pt/C‐based FCs. XAFS, AC‐HAADF‐STEM, and DFT calculations demonstrate that the synergistic effect of Pt single‐atoms anchored on carbon defects significantly boosts its electron transfer, ORR catalytic activity, durability, and rate performance, realizing rapid “ ORR+EDLC” parallel discharge mechanism to overcome the sluggish ORR process of traditional FCs. The promising SFC leads to a new pathway to boost the power density of FCs with extra‐low Pt loading.This article is protected by copyright. All rights reserved

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Optimization of platinum loading on partially fluorinated carbon catalysts for enhanced proton exchange membrane fuel cell performance

Cited by 8 publications

References 53 publications

Optimized mass transfer in a Pt-based cathode catalyst layer for PEM fuel cells

Optimized mass transfer in a Pt-based cathode catalyst layer for PEM fuel cells

Fluorination and its Effects on Electrocatalysts for Low‐Temperature Fuel Cells

Bimetallic‐MOF Derived Carbon with Single Pt Anchored C4 Atomic Group Constructing Super Fuel Cell with Ultrahigh Power Density And Self‐Change Ability

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