Metal Oxide‐Supported Platinum Overlayers as Proton‐Exchange Membrane Fuel Cell Cathodes

Tripković, Vladimir; Abild‐Pedersen, Frank; Studt, Felix; Cerri, Isotta; Nagami, Tetsuo; Bligaard, Thomas; Rossmeisl, Jan

doi:10.1002/cctc.201100308

Cited by 45 publications

(31 citation statements)

References 55 publications

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“…There are many ways to reduce the cost of fuel cells without sacrificing performance and are [45][46][47][48][49][50] In addition to various useful applications of PEMFC, still, it has to go a long way in terms of catalyst for successful commercialization, like cost, efficiency, and cycle stability. Even now, Pt/Pt-based materials hold its strong position in functioning as an efficient catalyst for PEMFC and DMFC, as it exhibits superior catalytic activity, electrochemical stability, high exchange current density, and excellent work function [50][51][52][53].…”

Section: Key Features To Consider When Preparing the Electrodesmentioning

confidence: 99%

“…The major issue with PEMFC catalyst is long-term durability. During the continuous operation of PEMFC, catalytic agglomeration, and electrochemical corrosion of carbon-based support result in deterioration of catalyst activity [53]. By choosing the correct catalyst support, one can eliminate the agglomeration of catalyst, and corrosion of support.…”

Section: Stabilitymentioning

confidence: 99%

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Ultra-low loading of platinum in proton exchange membrane-based fuel cells: a brief review

Ganesan¹,

Narayanasamy²

2019

Mater Renew Sustain Energy

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This review report summarizes different synthesis methods of PEM-based fuel cell catalysts with a focus on ultra-low loading of Pt catalysts. It also demonstrates fuel cell performances with ultra-low loading of Pt catalysts which have been reported so far, and suggests a combination method of synthesis for an efficient fuel cell performance at a low loading of Pt catalyst. Here, maximum mass-specific power density (MSPD) values are calculated from various reported performance values and are discussed, and compared with the Department of Energy (DOE) 2020 target values.

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Section: Key Features To Consider When Preparing the Electrodesmentioning

confidence: 99%

Section: Stabilitymentioning

confidence: 99%

Ultra-low loading of platinum in proton exchange membrane-based fuel cells: a brief review

Ganesan¹,

Narayanasamy²

2019

Mater Renew Sustain Energy

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“…The focus of a large portion of the combinatorial work done in this field has been on the identification of novel cathodes and anodes for SOFC and DMFC applications; however, concerns over the oxidation of carbon supports in polymer electrolyte membrane (PEM) fuel cells has led to some combinatorial work in that field. 348 Several high throughput approaches to fuel cell anode catalyst discovery and optimization have been pursued. One method uses sputtering to create CCS libraries.…”

Section: Catalysts For Fuel Cell Anodesmentioning

confidence: 99%

Applications of high throughput (combinatorial) methodologies to electronic, magnetic, optical, and energy-related materials

Green

Takeuchi

Hattrick‐Simpers

2013

Journal of Applied Physics

227

189

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High throughput (combinatorial) materials science methodology is a relatively new research paradigm that offers the promise of rapid and efficient materials screening, optimization, and discovery. The paradigm started in the pharmaceutical industry but was rapidly adopted to accelerate materials research in a wide variety of areas. High throughput experiments are characterized by synthesis of a "library" sample that contains the materials variation of interest (typically composition), and rapid and localized measurement schemes that result in massive data sets. Because the data are collected at the same time on the same "library" sample, they can be highly uniform with respect to fixed processing parameters. This article critically reviews the literature pertaining to applications of combinatorial materials science for electronic, magnetic, optical, and energy-related materials. It is expected that high throughput methodologies will facilitate commercialization of novel materials for these critically important applications. Despite the overwhelming evidence presented in this paper that high throughput studies can effectively inform commercial practice, in our perception, it remains an underutilized research and development tool. Part of this perception may be due to the inaccessibility of proprietary industrial research and development practices, but clearly the initial cost and availability of high throughput laboratory equipment plays a role. Combinatorial materials science has traditionally been focused on materials discovery, screening, and optimization to combat the extremely high cost and long development times for new materials and their introduction into commerce. Going forward, combinatorial materials science will also be driven by other needs such as materials substitution and experimental verification of materials properties predicted by modeling and simulation, which have recently received much attention with the advent of the Materials Genome Initiative. Thus, the challenge for combinatorial methodology will be the effective coupling of synthesis, characterization and theory, and the ability to rapidly manage large amounts of data in a variety of formats. V C 2013 AIP Publishing LLC. [http://dx

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“…In order to get a desirable fuel cell performance, major emphasis has been given to enhancing the slow kinetics of oxygen reduction reaction (ORR) at the cathode that requires approximately eight times higher Pt loading (∼0.4 mg cm −2 ) when compared to the anode of a PEMFCs . Since Pt is a rare earth metal with a very high price tag, intensive research efforts are underway with an aim to either reduce Pt loading in the cathode or to replace it completely with an efficient, cheap and more abundant alternative for their large‐scale realization …”

Section: Introductionmentioning

confidence: 99%

Activating Transition Metal Dichalcogenides by Substitutional Nitrogen‐Doping for Potential ORR Electrocatalysts

2018

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One of the challenging goals in the large‐scale realization of hydrogen‐based fuel cells is to replace or minimize the use of expensive Pt‐based electrocatalysts to reduce molecular oxygen at the cathode. Recently, non‐metal doped nanosheets of transition metal dichalcogenides (TMDs) have emerged as a promising Pt‐free electrocatalyst for hydrogen evolution reaction. Herein, we investigate the potential of nitrogen‐ and phosphorus‐ (N‐ and P‐) doped TMDs (MoS2, MoSe2, WS2, and WSe2) as high‐performing electrocatalysts for ORR using first principle calculations, motivated by recent experimental advances to incorporate single S/Se vacancies on the surface of TMD monolayers using electrochemical methods. We observed a strong hybridization of p‐orbitals of N/P atom with the p‐ and d‐orbitals of neighbouring S/Se and Mo/W atoms, respectively, activating pristine TMDs by increasing density of states near Fermi‐level. Based on the free energy profiles of the four‐electron reduction process, we expect that N‐TMDs to be efficient in catalyzing ORR, whereas, too strong binding of reaction intermediates prevents ORR on P‐TMDs. Among the candidates considered, N‐WS2 is found to be a promising TMD as ORR catalyst with the overpotential as low as 0.31 V, stimulating further experimental studies.

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Metal Oxide‐Supported Platinum Overlayers as Proton‐Exchange Membrane Fuel Cell Cathodes

Abstract: In the present work we have investigated the activity and stability of n = {1,2,3} platinum layers supported on a number of rutile metal-oxides MO 2 (M=Ti, Sn, Ta, Nb, Hf, Zr) (X = Ni, Co, Fe, Cu, Ti, Sc, Y) which are the best catalysts known to date for the reaction.

Cited by 45 publications

References 55 publications

Ultra-low loading of platinum in proton exchange membrane-based fuel cells: a brief review

Ultra-low loading of platinum in proton exchange membrane-based fuel cells: a brief review

Applications of high throughput (combinatorial) methodologies to electronic, magnetic, optical, and energy-related materials

Activating Transition Metal Dichalcogenides by Substitutional Nitrogen‐Doping for Potential ORR Electrocatalysts

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