Improving intrinsic oxygen reduction activity and stability: Atomic layer deposition preparation of platinum-titanium alloy catalysts

“…Furthermore, the rough surface of the PdAg alloy core provided the Pt shell with a certain number of low-coordination atoms, changing the electronic and geometric structures of Pt and improving the ORR catalytic activity. Kim et al 217 prepared Pt 3 Ti electrocatalysts using TiO 2 and Pt−ALD combined with thermal reduction annealing. In this work, TiO 2 was deposited on a carbon-based substrate using ALD.…”

Section: Preparation Methods Of Carbon-supported Pt Alloy Catalystsmentioning

confidence: 99%

Review and Perspectives of Carbon-Supported Platinum-Based Catalysts for Proton Exchange Membrane Fuel Cells

Yang

et al. 2023

Energy Fuels

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The proton exchange membrane fuel cell (PEMFC) is a fast growing nextgeneration energy conversion technology, which has broad application prospects in electric vehicles, such as portable power supplies, fixed power supplies, and the military industry. The development of PEMFCs has attracted much attention due to their high energy conversion efficiency, good low-temperature startup performance, no pollution, no noise, and other advantages. However, the cathodic oxygen reduction reaction (ORR) kinetics in fuel cells is slow. It is therefore necessary that we use a large number of carbon-supported platinum (Pt)based catalysts in order to speed up the reaction. As a result, the current problems of high cost and low durability of carbon-supported Pt-based catalysts have become a major reason for limiting the successful commercialization of fuel cells. To meet the requirements of high catalytic activity and high stability of carbon-supported Pt-based catalysts, this review summarizes the research progress and methods for optimizing the performance of carbonsupported Pt-based catalysts for PEMFCs. In addition, this review highlights the current progress in improving the performance of carbon-supported Pt-based catalysts in terms of the reduction of particle size, exposure of highly active crystal surfaces, control of Pt particle morphology, and preparation of Pt−M alloys as well as some support characteristics and preparation technologies. Furthermore, the development of carbon-supported Pt-based catalysts in the direction of fuel cells and the main challenges they will face in practical applications are also proposed in this review. In summary, the carbonsupported Pt-based catalysts optimized using the above methods show great potential in the ORR. With continuous improvement of preparation and characterization technologies, carbon-supported Pt-based catalysts have broad applications and market prospects.

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“…Prinz et al reported on an ALD-prepared Pt 3 Ti catalyst. 130 In that study, TiO 2 and Pt were deposited on glassy carbon substrates by plasma-enhanced ALD. Thermal annealing in H 2 -formatted of platinum-titanium alloys was undertaken.…”

Section: Precise Control At the Interface Using Aldmentioning

confidence: 99%

Precise control of the catalyst interface at the atomic level

Dai,

Guan,

Guo

et al. 2023

Mater. Chem. Front.

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Improving intrinsic oxygen reduction activity and stability: Atomic layer deposition preparation of platinum-titanium alloy catalysts

Cited by 19 publications

References 47 publications

Biomimicry-inspired fish scale-like Ni₃N/FeNi₃N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance

Biomimicry-inspired fish scale-like Ni₃N/FeNi₃N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance

Review and Perspectives of Carbon-Supported Platinum-Based Catalysts for Proton Exchange Membrane Fuel Cells

Precise control of the catalyst interface at the atomic level

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Improving intrinsic oxygen reduction activity and stability: Atomic layer deposition preparation of platinum-titanium alloy catalysts

Cited by 19 publications

References 47 publications

Biomimicry-inspired fish scale-like Ni3N/FeNi3N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance

Biomimicry-inspired fish scale-like Ni3N/FeNi3N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance

Review and Perspectives of Carbon-Supported Platinum-Based Catalysts for Proton Exchange Membrane Fuel Cells

Precise control of the catalyst interface at the atomic level

Contact Info

Product

Resources

About

Biomimicry-inspired fish scale-like Ni₃N/FeNi₃N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance

Biomimicry-inspired fish scale-like Ni₃N/FeNi₃N/NF superhydrophilic/superaerophobic nanoarrays displaying high electrocatalytic performance