Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource
Pt on carbon black (Pt/C) has been widely used as a catalyst for both ORR and hydrogen oxidation reaction (HOR), but its stability is compromised due to carbon corrosion and catalyst poisoning, leading to low Pt utilization. To address this issue, this study suggests replacing carbon black with grap...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-12-01
|
| Series: | C |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2311-5629/10/4/105 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850241265150459904 |
|---|---|
| author | Adriana Marinoiu Mihaela Iordache Elena Simona Borta Anisoara Oubraham |
| author_facet | Adriana Marinoiu Mihaela Iordache Elena Simona Borta Anisoara Oubraham |
| author_sort | Adriana Marinoiu |
| collection | DOAJ |
| description | Pt on carbon black (Pt/C) has been widely used as a catalyst for both ORR and hydrogen oxidation reaction (HOR), but its stability is compromised due to carbon corrosion and catalyst poisoning, leading to low Pt utilization. To address this issue, this study suggests replacing carbon black with graphene in the catalyst layer. The importance of this work lies in the detailed examination of novel electrocatalysts with high electrocatalytic activity for large-scale power generation. In this paper, we discuss the use of regulatory techniques like structure tuning and composition optimization to construct nanocatalysts impregnated with noble and non-noble metals on graphene supports. Finally, it highlights the limitations and advantages of these nanocatalysts along with some future perspectives. Our objective is that this summary will help in the research and rational design of graphene-based nanostructures for efficient ORR electrocatalysis. The results of this study showed that the performances of graphene-based catalysts show high electrochemical active surface areas for Pt-Fe/GNPs and Pt-Ni/GNPs catalysts (132 and 136 m<sup>2</sup> g<sup>−1</sup>, respectively) at 100 operating cycles. Also, high current densities and power densities were observed for Pt<sub>3</sub>-Ni/G and Pt-Co/G catalysts used at the cathode. The values for current density were 1.590 and 1.779 A cm<sup>−2</sup>, respectively, while the corresponding values for power density were 0.57 and 0.785 W cm<sup>−2</sup>. |
| format | Article |
| id | doaj-art-6a533b855bb44be190a256d179924e3e |
| institution | OA Journals |
| issn | 2311-5629 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | C |
| spelling | doaj-art-6a533b855bb44be190a256d179924e3e2025-08-20T02:00:39ZengMDPI AGC2311-56292024-12-0110410510.3390/c10040105Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased ResourceAdriana Marinoiu0Mihaela Iordache1Elena Simona Borta2Anisoara Oubraham3National Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI, 4 Uzinei Street, 240050 Râmnicu Vâlcea, RomaniaNational Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI, 4 Uzinei Street, 240050 Râmnicu Vâlcea, RomaniaNational Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI, 4 Uzinei Street, 240050 Râmnicu Vâlcea, RomaniaNational Research and Development Institute for Cryogenics and Isotopic Technologies—ICSI, 4 Uzinei Street, 240050 Râmnicu Vâlcea, RomaniaPt on carbon black (Pt/C) has been widely used as a catalyst for both ORR and hydrogen oxidation reaction (HOR), but its stability is compromised due to carbon corrosion and catalyst poisoning, leading to low Pt utilization. To address this issue, this study suggests replacing carbon black with graphene in the catalyst layer. The importance of this work lies in the detailed examination of novel electrocatalysts with high electrocatalytic activity for large-scale power generation. In this paper, we discuss the use of regulatory techniques like structure tuning and composition optimization to construct nanocatalysts impregnated with noble and non-noble metals on graphene supports. Finally, it highlights the limitations and advantages of these nanocatalysts along with some future perspectives. Our objective is that this summary will help in the research and rational design of graphene-based nanostructures for efficient ORR electrocatalysis. The results of this study showed that the performances of graphene-based catalysts show high electrochemical active surface areas for Pt-Fe/GNPs and Pt-Ni/GNPs catalysts (132 and 136 m<sup>2</sup> g<sup>−1</sup>, respectively) at 100 operating cycles. Also, high current densities and power densities were observed for Pt<sub>3</sub>-Ni/G and Pt-Co/G catalysts used at the cathode. The values for current density were 1.590 and 1.779 A cm<sup>−2</sup>, respectively, while the corresponding values for power density were 0.57 and 0.785 W cm<sup>−2</sup>.https://www.mdpi.com/2311-5629/10/4/105graphenecatalyst layerORR electrocatalysisfuel cells |
| spellingShingle | Adriana Marinoiu Mihaela Iordache Elena Simona Borta Anisoara Oubraham Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource C graphene catalyst layer ORR electrocatalysis fuel cells |
| title | Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource |
| title_full | Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource |
| title_fullStr | Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource |
| title_full_unstemmed | Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource |
| title_short | Graphene-Based Nanostructured Cathodes for Polymer Electrolyte Membrane Fuel Cells with Increased Resource |
| title_sort | graphene based nanostructured cathodes for polymer electrolyte membrane fuel cells with increased resource |
| topic | graphene catalyst layer ORR electrocatalysis fuel cells |
| url | https://www.mdpi.com/2311-5629/10/4/105 |
| work_keys_str_mv | AT adrianamarinoiu graphenebasednanostructuredcathodesforpolymerelectrolytemembranefuelcellswithincreasedresource AT mihaelaiordache graphenebasednanostructuredcathodesforpolymerelectrolytemembranefuelcellswithincreasedresource AT elenasimonaborta graphenebasednanostructuredcathodesforpolymerelectrolytemembranefuelcellswithincreasedresource AT anisoaraoubraham graphenebasednanostructuredcathodesforpolymerelectrolytemembranefuelcellswithincreasedresource |