A high-throughput search for direct methanol fuel cell anode electrocatalysts of type PtxBiyPbz

Jin, Jing; Prochaska, Mark; Rochefort, Dominic; Kim, David K.; Zhuang, Lin; DiSalvo, Francis J.; Dover, R. B. van; Abruña, Héctor D.

doi:10.1016/j.apsusc.2007.06.077

Cited by 27 publications

(21 citation statements)

References 23 publications

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“…To circumvent this issue, the ordered intermetallic phases PtBi and PtPb have recently come to attention. Using fluorescence imaging and SEM to screen Pt-Bi-Pb ternary and Pt-Ti-Co-Pb quaternary combinatorial thin film libraries for their activity to methanol decomposition, 349,360,374 it was found that by lightly doping a PtPb 0.53 alloy with Bi the onset potential of methanol reduction could be decreased by 50 mV. XRD and XPS analyses showed the material to have a structure similar to PtPb.…”

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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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

View full text Add to dashboard Cite

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“…1(b) with false-color images of fluorescence intensity showing background-subtracted images from a charge-coupled device camera, as previously described. [23,25] The N 2 -sparged aqueous electrolyte contained 3 mM quinine (fluorescent indicator) and 0.1 M potassium triflate (supporting electrolyte). An initial voltage sweep in this electrolyte without methanol was used to identify any regions exhibiting fluorescence, which could be due to film oxidation or oxidative corrosion, prompting our labeling of these composition regions as "unstable."…”

Section: Pd-rh-ta Experimentsmentioning

confidence: 99%

CRYSTAL: a multi-agent AI system for automated mapping of materials’ crystal structures

et al. 2019

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“…The entire substrate can then be screened for electrocatalytic activity using a rapid fluorescence assay to discover which point in the film is most active. 13,15,38,50 We have carried out extensive studies in which we have looked at a wide variety of binary and ternary combinations of metals (initially, with Pt as one of the components). To date, over five hundred composition spread films have been tested and fluorescence onset potentials (which serve as an initial indicator of electrocatalytic activity) determined.…”

Section: A Development Of Combinatorial Synthesis and Screening Methmentioning

confidence: 99%

Cornell Fuel Cell Institute: Materials Discovery to Enable Fuel Cell Technologies

Abruña¹,

DiSalvo²

2012

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IntroductionThe discovery and understanding of new, improved materials to advance fuel cell technology are the objectives of the Cornell Fuel Cell Institute (CFCI) research program. CFCI was initially formed in 2003. This report highlights the accomplishments from 2006-2009. Many of the grand challenges in energy science and technology are based on the need for materials with greatly improved or even revolutionary properties and performance. [1][2][3][4][5][6] This is certainly true for fuel cells, which have the promise of being highly efficient in the conversion of chemical energy to electrical energy. Fuel cells offer the possibility of efficiencies perhaps up to 90 % based on the free energy of reaction.Thus, there is considerable interest in fuel cells which, however, have yet to live up to their promise, not only for efficiency, but also for cost, durability, performance, etc. [7][8][9][10][11][12] Here, the challenges are clearly in the materials used to construct the heart of the fuel cell: the membrane electrode assembly (MEA). The MEA consists of two electrodes separated by an ionically conducting membrane. Each electrode is a nanocomposite of electronically conducting catalyst support, ionic conductor and open porosity, that together form three percolation networks that must connect to each catalyst nanoparticle; otherwise the catalyst is inactive.While there are a number of different fuel cell technologies 12, 13 , the CFCI is focused on polymer electrolyte membrane fuel cells (PEMFCs). The broadest applications of these fuel cells in portable power or individual transportation vehicles The highest interest is in fuels that are carbon neutral, such as hydrogen, which could be carbon neutral if it is generated from sunlight, rather than from natural gas, as is done now. Fuels derived from algal or plant matter are also of interest, if we could discover catalysts that enable complete oxidation of those fuels, or if they could be efficiently converted to hydrogen.Our research program is divided into four main areas: Electrocatalysts and Supports, Self-Assembly and Meso-Structured Electrodes, Membranes and Theory. The first section is further sub-divided into combinatorial synthesis and screening, oxide supports, mechanistic studies and surface characterization. This report highlights selected advances rather than give an exhaustive account of previous results. A full appreciation of the scope and advances of our program can be garnered from our publications

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A high-throughput search for direct methanol fuel cell anode electrocatalysts of type PtxBiyPbz

Cited by 27 publications

References 23 publications

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

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

CRYSTAL: a multi-agent AI system for automated mapping of materials’ crystal structures

Cornell Fuel Cell Institute: Materials Discovery to Enable Fuel Cell Technologies

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