Non-stoichiometric tungsten-carbide-oxide-supported Pt–Ru anode catalysts for PEM fuel cells – From basic electrochemistry to fuel cell performance

Brković, Snežana; Kaninski, Milica P. Marčeta; Lausevic, Petar Z.; Šaponjić, Aleksandra; Radulović, Aleksandra; Rakić, Aleksandra; Pašti, Igor A.; Nikolić, Vladimir M.

doi:10.1016/j.ijhydene.2020.03.086

Cited by 23 publications

(15 citation statements)

References 48 publications

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“…Brkovic et al 93 also aimed to improve PEMFCs performance and compared the effects of carbon and noncarbon support of PtRu on CO tolerance of PEMFCs. Tungsten carbide oxide (W x C y O z ) base for PtRu catalyst was developed, and it was concluded that 30% PtRu/W x C y O z is the best alternative to conventional catalyst as it offers better CO tolerance and less power loss as compared to carbon‐supported PtRu catalyst as shown in Figure 8.…”

Section: Low‐temperature Fuel Cellsmentioning

confidence: 99%

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A perspective on development of fuel cell materials: Electrodes and electrolyte

Sajid

Pervaiz

Ali³

et al. 2022

Intl J of Energy Research

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Summary The declining reserves and environmental concerns related to the use of fossil fuels have made the global think tanks to pursue for the technologies considered to be renewable as well as sustainable. Fuel cell technology is emerging and a green way to produce electricity, provided sufficient amount of hydrogen (fuel) is available that directly convert chemical energy to electrical energy. Despite of being an efficient and eco‐friendly source of energy, commercialization of fuel cells is still difficult to attain. Techno‐economic challenges like high manufacturing and assembly costs, water management, system size, nondurability, and instability of the system need to be addressed. In order to resolve these issues, considerable research has been carried out for the development of novel and inexpensive materials for the fuel cells. In this article, we have reviewed the development of electrodes and electrolyte materials for different types of fuel cells. A detailed description of applications, challenges, and improvement of electrodes/electrolytes materials of different types of fuel cells (polymer electrolyte membrane fuel cells, direct methanol fuel cells and solid oxide fuel cells) have been reported in this review article. A brief review of the development of materials for electrode of molten carbonate fuel cells has also been presented in the review.

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Section: Low‐temperature Fuel Cellsmentioning

confidence: 99%

Section: Low‐temperature Fuel Cellsmentioning

confidence: 99%

A perspective on development of fuel cell materials: Electrodes and electrolyte

Sajid

Pervaiz

Ali³

et al. 2022

Intl J of Energy Research

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“…Brkovic et al [128] significantly improved the CO tolerance of the PtRu anode by replacing the carbon support with non-stoichiometric tungsten carbide-oxide (W x C y O z ). For the CO-contaminated H 2 stream, the PtRu/W x C y O z exhibited a loss of 18% in maximum power density due to CO poisoning, while PtRu/C showed a loss of 32% (Figure 10a).…”

Section: Transition Metal Oxides and Carbidesmentioning

confidence: 99%

“…Cathode: Pt/C in any case. Data obtained from[70,73,77,[94][95][96]104,109,114,120,121,127,128,139,145,146,150,156,157].…”

mentioning

confidence: 99%

Carbon Monoxide Tolerant Pt-Based Electrocatalysts for H2-PEMFC Applications: Current Progress and Challenges

Molochas

Tsiakaras

2021

Catalysts

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The activity degradation of hydrogen-fed proton exchange membrane fuel cells (H2-PEMFCs) in the presence of even trace amounts of carbon monoxide (CO) in the H2 fuel is among the major drawbacks currently hindering their commercialization. Although significant progress has been made, the development of a practical anode electrocatalyst with both high CO tolerance and stability has still not occurred. Currently, efforts are being devoted to Pt-based electrocatalysts, including (i) alloys developed via novel synthesis methods, (ii) Pt combinations with metal oxides, (iii) core–shell structures, and (iv) surface-modified Pt/C catalysts. Additionally, the prospect of substituting the conventional carbon black support with advanced carbonaceous materials or metal oxides and carbides has been widely explored. In the present review, we provide a brief introduction to the fundamental aspects of CO tolerance, followed by a comprehensive presentation and thorough discussion of the recent strategies applied to enhance the CO tolerance and stability of anode electrocatalysts. The aim is to determine the progress made so far, highlight the most promising state-of-the-art CO-tolerant electrocatalysts, and identify the contributions of the novel strategies and the future challenges.

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“…Many WC-modified nanocarbons (WC-C and W2C) have been prepared by different methods and applied in electrocatalysis [174,184,185], as summarized in Table 7. The preparation methods of WC-C can be generally divided into in situ and post-treatment methods [177,[186][187][188][189]. In the former case, ammonium metatungstate (AMT) or phosphotungstic acid (PTA) is adopted as the tungsten precursor and glucose or resorcinol-formaldehyde polymer as the carbon source.…”

Section: Tungsten Carbidementioning

confidence: 99%