Dandelion-like titanium nitride supported platinum as an efficient oxygen reduction catalyst in acidic media

Yuan, Zeyu; Cao, Yuntai; Zhang, Zhijie; Fang, Yanxiong; Liu, Quanbing; Dang, Dai; Zheng, Yuying

doi:10.1016/j.ijhydene.2022.03.010

Cited by 19 publications

(10 citation statements)

References 41 publications

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“…It was observed that WC addition increased the electrocatalyst particles' corrosion and detachment, however, the addition of Nb 2 O 5 was more effective in improving the Pt/C electrocatalyst stability. More so, Yuan et al (2022) synthesised a dandelion-like structured titanium nitride nanospheres as a non-carbon-based catalyst support for Pt nanoparticles, which were deposited on the dendritic structured titanium nitride by an electrochemical pulse deposition method. The catalyst recorded ORR mass and specific activity of 0.44 mA g -1 and 0.33 mA cm -2 at 0.9 V. At similar test conditions, the catalysts demonstrated superior stability to the commercial Pt/C catalysts recording 61% of the initial activity after 3000 repeated runs.…”

Section: Catalyst Supportsmentioning

confidence: 99%

Materials for electrocatalysts in proton exchange membrane fuel cell: A brief review

Alabi

Popoola

et al. 2023

Front. Energy Res.

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Energy is a requisite factor for technological advancement and the economic development of any society. Currently, global energy demand and supply largely rely on fossil fuels. The use of fossil fuels as a source of energy has caused severe environmental pollution and global warming. To salvage the dire situation, research effort is geared toward the utilization of clean, renewable and sustainable energy sources and the hydrogen energy economy is among the most preferred choices. Hydrogen energy economy, which includes hydrogen production, storage and conversion has gained wide consideration as an ecofriendly future energy solution with a fuel cell as its conversion device. Fuel cells, especially, the proton exchange membrane category, present a promising technology that converts hydrogen directly into electricity with great efficiency and no hazardous emissions. Unfortunately, the current generation of proton exchange membrane fuel cells faces some drawbacks that prevent them from large-scale market adoption. These challenges include the high costs and durability concerns of catalyst materials. The main source of high cost in fuel cells is the platinum catalyst used in the electrodes, particularly at the cathode where the sluggish oxygen reduction reaction kinetics require high loading of precious metals. Many research efforts on proton exchange membrane fuel cells are directed to reduce the device cost by reducing or completely replacing the platinum metal loading using alternative low-cost materials with “platinum-like” catalytic behaviour while maintaining high power performance and durability. Consequently, this review attempts to highlight recent research efforts to replace platinum and carbon support with other cost-effective and durable materials in proton exchange membrane fuel cell electrocatalysts. Overview of promising materials such as alloy-based (binary, ternary, quaternary and high-entropy alloys), single atom and metal-free electrocatalysts were discussed, as the research areas are still in their infancy and have many open questions that need to be answered to gain insight into their intrinsic requirements that will inform the recommendation for outlook in selecting them as electrocatalysts for oxygen reduction reaction in proton exchange membrane fuel cell.

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Section: Catalyst Supportsmentioning

confidence: 99%

Materials for electrocatalysts in proton exchange membrane fuel cell: A brief review

Alabi

Popoola

et al. 2023

Front. Energy Res.

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“…This study offers a framework for the development of low-Pt loading, long-lasting non-carbon catalysts. 127…”

Section: Carbon-free Carriersmentioning

confidence: 99%

“…As a proof-of-concept, the axial Fe-O-Ti ligands are constructed in the o-MQFe catalyst, conrmed by tting the extended X-ray adsorption ne structure (EXAFS) and XPS spectra. The local 127 Copyright 2022, Hydrogen Energy Publications LLC. (i) Schematics of the in situ GI-cell.…”

Section: Transition Metal Carbide Carriers (Tmcs)mentioning

confidence: 99%

The metal–support interaction effect in the carbon-free PEMFC cathode catalysts

Dong,

Liu,

et al. 2023

J. Mater. Chem. A

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“…Transition-metal nitrides (TMN), oxides, and carbides have ORR activities and can be used in Pt-free catalysts, as will be discussed below, but they can also be combined with Pt-based materials to improve the overall activity and durability of the composite catalyst ( Yuan et al, 2022 ). Carbide-based Pt alloy composites are fabricated in various forms, such as core–shell structure, nanoparticles, and single atoms.…”

Section: Pt-based Catalysts For Direct Methanol Fuel Cells Cathodesmentioning

confidence: 99%

Advances in platinum-based and platinum-free oxygen reduction reaction catalysts for cathodes in direct methanol fuel cells

et al. 2022

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Direct methanol fuel cells (DMFCs) have been the focus of future research because of their simple structure, abundant fuel sources, high energy conversion efficiency and low cost. Among the components in DMFC, the activity and stability of the cathode catalyst is the key to the performance and lifetime of the DMFCs. Oxygen reduction reaction (ORR) is an important electrode reaction on DMFC cathode. It is known that Pt is widely used in the fabrication of ORR catalysts, but the limited earth storage of Pt and its high price limit the use of Pt-based commercial catalysts in DMFCs. To overcome these problems, advances have been made on new low Pt-based catalysts and Pt-free catalysts in recent years. In this article, the development of novel ORR catalysts and the carbon supports is reviewed and discussed.

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Dandelion-like titanium nitride supported platinum as an efficient oxygen reduction catalyst in acidic media

Cited by 19 publications

References 41 publications

Materials for electrocatalysts in proton exchange membrane fuel cell: A brief review

Materials for electrocatalysts in proton exchange membrane fuel cell: A brief review

The metal–support interaction effect in the carbon-free PEMFC cathode catalysts

Advances in platinum-based and platinum-free oxygen reduction reaction catalysts for cathodes in direct methanol fuel cells

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