Design strategies of Pt-based electrocatalysts and tolerance strategies in fuel cells: a review

Luo, W.; Jiang, Yixiao; Wang, Mengwei; Lu, Dan; Zhang, Huahui

doi:10.1039/d2ra07644f

Cited by 17 publications

(6 citation statements)

References 126 publications

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“…Platinum nanoparticles can also catalyze the oxygen evolution (OER) reaction, which is an important process for producing renewable fuels, such as hydrogen gas. In addition, platinum is also active toward the hydrogen reduction and oxidation reactions and many organic transformations. , Platinum’s versatility as a multifunctional catalyst is derived from the fact that its surface is capable of stabilizing a wide range of adsorbates within the potential windows required for effective electrocatalysis. Despite its effectiveness as a catalyst, the ongoing challenge in developing practical electrochemical devices is the high cost and low abundance of platinum.…”

Section: Introductionmentioning

confidence: 99%

Platinum-Modified Cobalt Oxide/Cobalt Nanotubes as Multifunctional Electrocatalysts in Alkaline and Acidic Conditions

Mayes,

Noka,

Dillon

et al. 2024

ACS Appl. Nano Mater.

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Nanostructure platinum is an effective catalyst that is active toward a broad range of electrochemical processes over a wide range of pH values. However, its high cost and low abundance prevent its widespread use in practical devices. A promising strategy to overcome the limitations of platinum is to combine platinum with less expensive and more abundant transition metals. In this report, we employ an ambient, template-based approach to prepare monodisperse Co nanotubes (NTs) and modify them with platinum via an electroless deposition process. The composition of the resulting Pt modified Co NTs (Pt-Co NTs) can be varied by controlling the Pt ion concentration in the electroless deposition step. The resulting Pt-Co NTs have a hierarchical structure consisting of Pt-Co NTs coated with an amorphous Co-oxide film. The amorphous Co-oxide coating activates the Pt-Co NTs to the oxygen evolution reaction (OER) leading to a 9-fold enhancement in the OER activity in an 80% (by mass) Pt-Co NT relative to pure Pt nanowires. The surface oxide coating can be selectively removed by cycling the Pt-Co NTs in an acidic solution. Removing the oxide film activates the Pt-Co NTs toward methanol oxidation (MOR) and oxygen reduction (ORR) reactions. In both cases, the trends in MOR and ORR activity follow a volcano-type dependence as a function of composition. The catalyst with the optimum composition of 60% Pt has a 4-fold increase in the specific activity for MOR and maintains a +20 mV shift in the half-wave potential for ORR relative to that of pure Pt nanowires.

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Section: Introductionmentioning

confidence: 99%

Platinum-Modified Cobalt Oxide/Cobalt Nanotubes as Multifunctional Electrocatalysts in Alkaline and Acidic Conditions

Mayes,

Noka,

Dillon

et al. 2024

ACS Appl. Nano Mater.

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“…Pt-based nanoparticles (NPs) alloyed with transition elements are being intensively studied, anticipating their potential use in catalysts as electrodes in fuel cell systems. [1][2][3][4][5][6][7][8][9][10] It is assumed that the improvement in the catalytic activity of Pt-based alloys is mainly due to lattice strain and the change in the electronic state of the d-electrons of Pt caused mainly by ligand effects. [10][11][12][13][14][15][16] In this regard, it was found that octahedral Pt 3 Ni NPs have an activity higher than 90 times that of pure Pt in the oxygen reduction reaction (ORR).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of low-cost multi-element Pt-based alloy nanoparticles as catalysts for the oxygen reduction reaction

Cuya Huaman,

Taniguchi,

Iwata

et al. 2024

Nanoscale

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“…According to identified reserves, the three traditional mineral resources, namely, coal, oil, and natural gas, are gradually becoming exhausted. Meanwhile, the issues of waste gas, the greenhouse effect, and ecological damage caused by the combustion of fossil fuels have become increasingly serious [ 1 , 2 , 3 , 4 , 5 , 6 ]. The recent outbreak of PM2.5 in China has alarmed the world.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in Manganese-Based Materials for Electrolytic Water Splitting

Zhou

Liu

et al. 2023

IJMS

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Developing earth-abundant and highly effective electrocatalysts for electrocatalytic water splitting is a prerequisite for the upcoming hydrogen energy society. Recently, manganese-based materials have been one of the most promising candidates to replace noble metal catalysts due to their natural abundance, low cost, adjustable electronic properties, and excellent chemical stability. Although some achievements have been made in the past decades, their performance is still far lower than that of Pt. Therefore, further research is needed to improve the performance of manganese-based catalytic materials. In this review, we summarize the research progress on the application of manganese-based materials as catalysts for electrolytic water splitting. We first introduce the mechanism of electrocatalytic water decomposition using a manganese-based electrocatalyst. We then thoroughly discuss the optimization strategy used to enhance the catalytic activity of manganese-based electrocatalysts, including doping and defect engineering, interface engineering, and phase engineering. Finally, we present several future design opportunities for highly efficient manganese-based electrocatalysts.

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Design strategies of Pt-based electrocatalysts and tolerance strategies in fuel cells: a review

Abstract: The latest developments of Pt-based electrocatalysts and their anti-CO poisoning mechanism are introduced. A brief perspective on the design of Pt-based electrocatalysts to inhibit CO poisoning in PEMFCs are also presented.

Cited by 17 publications

References 126 publications

Platinum-Modified Cobalt Oxide/Cobalt Nanotubes as Multifunctional Electrocatalysts in Alkaline and Acidic Conditions

Platinum-Modified Cobalt Oxide/Cobalt Nanotubes as Multifunctional Electrocatalysts in Alkaline and Acidic Conditions

Synthesis of low-cost multi-element Pt-based alloy nanoparticles as catalysts for the oxygen reduction reaction

Recent Advances in Manganese-Based Materials for Electrolytic Water Splitting

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