Mexican contributions for the improvement of electrocatalytic properties for the oxygen reduction reaction in PEM fuel cells

Cruz-Martínez, H.; Tellez-Cruz, M.M.; Guerrero-Gutiérrez, Oscar X.; Ramírez-Herrera, Claudia Angélica; Salinas-Juárez, M.G.; Velázquez-Osorio, A.; Solorza‐Feria, O.

doi:10.1016/j.ijhydene.2018.05.168

Cited by 28 publications

(10 citation statements)

References 96 publications

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“… Schematic diagram showing the components of a single PEMFC: bipolar plates, gaskets, gas diffusion layers, and the MEA; this arrangement is repeated in a fuel cell stack. Reproduced with permission from Elsevier (reference [ 43 ]). …”

Section: Figurementioning

confidence: 99%

Proton Exchange Membrane Fuel Cells (PEMFCs): Advances and Challenges

Tellez-Cruz¹,

et al. 2021

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The study of the electrochemical catalyst conversion of renewable electricity and carbon oxides into chemical fuels attracts a great deal of attention by different researchers. The main role of this process is in mitigating the worldwide energy crisis through a closed technological carbon cycle, where chemical fuels, such as hydrogen, are stored and reconverted to electricity via electrochemical reaction processes in fuel cells. The scientific community focuses its efforts on the development of high-performance polymeric membranes together with nanomaterials with high catalytic activity and stability in order to reduce the platinum group metal applied as a cathode to build stacks of proton exchange membrane fuel cells (PEMFCs) to work at low and moderate temperatures. The design of new conductive membranes and nanoparticles (NPs) whose morphology directly affects their catalytic properties is of utmost importance. Nanoparticle morphologies, like cubes, octahedrons, icosahedrons, bipyramids, plates, and polyhedrons, among others, are widely studied for catalysis applications. The recent progress around the high catalytic activity has focused on the stabilizing agents and their potential impact on nanomaterial synthesis to induce changes in the morphology of NPs.

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Section: Figurementioning

confidence: 99%

Proton Exchange Membrane Fuel Cells (PEMFCs): Advances and Challenges

Tellez-Cruz¹,

et al. 2021

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“…Due to their unique properties, these clusters can be utilized for various technological applications in the fields of catalysis, electronics, and medicine, among others [11][12][13][14]. Specifically, in the field of catalysis, the interest in bimetallic systems formed by Pd alloyed with 3d transition metals has steadily grown, largely due to their promising catalytic efficiency [15][16][17][18][19][20]. For instance, PdNi/C nanoparticles have been evaluated for the ethanol oxidation reaction, where the Pd 2 Ni 3 /C catalyst exhibits higher activity and stability in alkaline media than the Pd/C catalyst [15].…”

Section: Introductionmentioning

confidence: 99%

Stability, Energetic, and Reactivity Properties of NiPd Alloy Clusters Deposited on Graphene with Defects: A Density Functional Theory Study

et al. 2022

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Graphene with defects is a vital support material since it improves the catalytic activity and stability of nanoparticles. Here, a density functional theory study was conducted to investigate the stability, energy, and reactivity properties of NinPdn (n = 1–3) clusters supported on graphene with different defects (i.e., graphene with monovacancy and pyridinic N-doped graphene with one, two, and three N atoms). On the interaction between the clusters and graphene with defects, the charge was transferred from the clusters to the modified graphene, and it was observed that the binding energy between them was substantially higher than that previously reported for Pd-based clusters supported on pristine graphene. The vertical ionization potential calculated for the clusters supported on modified graphene decreased compared with that calculated for free clusters. In contrast, vertical electron affinity values for the clusters supported on graphene with defects increased compared with those calculated for free clusters. In addition, the chemical hardness calculated for the clusters supported on modified graphene was decreased compared with free clusters, suggesting that the former may exhibit higher reactivity than the latter. Therefore, it could be inferred that graphene with defects is a good support material because it enhances the stability and reactivity of the Pd-based alloy clusters supported on PNG.

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“…Despite all these advantages, there are still challenges that must be addressed before their large-scale commercialization. One of these challenges is related to the slow kinetics of the cathode reaction (ORR), which is various orders of magnitude slower than the HOR [7][8][9][10]. Consequently, the ORR limits the overall performance of the PEMFCs.…”

Section: Introductionmentioning

confidence: 99%

“…Molecules 2021, 26, 6689 2 of 15 material has various disadvantages such as low availability, high cost and limited activity/durability [8,9]. That is why the design of novel nanocatalysts with high catalytic activity and stability as well as cost-effective production is very relevant to achieve largescale commercialization of the PEMFCs [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Pt-Free Metal Nanocatalysts for the Oxygen Reduction Reaction Combining Experiment and Theory: An Overview

et al. 2021

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The design and manufacture of highly efficient nanocatalysts for the oxygen reduction reaction (ORR) is key to achieve the massive use of proton exchange membrane fuel cells. Up to date, Pt nanocatalysts are widely used for the ORR, but they have various disadvantages such as high cost, limited activity and partial stability. Therefore, different strategies have been implemented to eliminate or reduce the use of Pt in the nanocatalysts for the ORR. Among these, Pt-free metal nanocatalysts have received considerable relevance due to their good catalytic activity and slightly lower cost with respect to Pt. Consequently, nowadays, there are outstanding advances in the design of novel Pt-free metal nanocatalysts for the ORR. In this direction, combining experimental findings and theoretical insights is a low-cost methodology—in terms of both computational cost and laboratory resources—for the design of Pt-free metal nanocatalysts for the ORR in acid media. Therefore, coupled experimental and theoretical investigations are revised and discussed in detail in this review article.

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Mexican contributions for the improvement of electrocatalytic properties for the oxygen reduction reaction in PEM fuel cells

Cited by 28 publications

References 96 publications

Proton Exchange Membrane Fuel Cells (PEMFCs): Advances and Challenges

Proton Exchange Membrane Fuel Cells (PEMFCs): Advances and Challenges

Stability, Energetic, and Reactivity Properties of NiPd Alloy Clusters Deposited on Graphene with Defects: A Density Functional Theory Study

Pt-Free Metal Nanocatalysts for the Oxygen Reduction Reaction Combining Experiment and Theory: An Overview

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