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Platinum intermetallic nanoparticle cathode catalysts for proton-exchange-membrane fuel cells: Synthesis and ordering effect

CURRENT OPINION IN ELECTROCHEMISTRY (2023)

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Phase diagrams guide synthesis of highly ordered intermetallic electrocatalysts: separating alloying and ordering stages

Wei-Jie Zeng et al.

Summary: In this study, the authors use in-situ high-temperature X-ray diffraction studies to investigate the structural evolution in the synthesis of carbon-supported intermetallic catalysts. They identify a phase-transition-temperature-dependent evolution process and propose a separate alloying/ordering annealing synthetic protocol for the synthesis of highly ordered intermetallic catalysts.

NATURE COMMUNICATIONS (2022)

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Article Chemistry, Multidisciplinary

Intermetallic PtFe Electrocatalysts for the Oxygen Reduction Reaction: Ordering Degree-Dependent Performance

Tian-Wei Song et al.

Summary: Platinum-based atomically ordered alloys show superior catalytic activity and durability in proton-exchange-membrane fuel cells. In this study, a series of PtFe catalysts with different ordering degrees but similar particle sizes were prepared. It was found that the ordering degree is positively correlated with the catalyst's activity and durability, which can be attributed to the compressive strain effect and thermodynamic stability of the intermetallic structure.

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Article Multidisciplinary Sciences

Small molecule-assisted synthesis of carbon supported platinum intermetallic fuel cell catalysts

Tian-Wei Song et al.

Summary: This study reports a small molecule-assisted impregnation approach for the general synthesis of intermetallic catalysts. The molecular additives containing heteroatoms can be converted into heteroatom-doped graphene layers during high-temperature annealing, effectively preventing alloy sintering and ensuring the formation of small-sized intermetallic catalysts.

NATURE COMMUNICATIONS (2022)

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Article Chemistry, Physical

Ordered CoPt oxygen reduction catalyst with high performance and durability

Yung-Tin Pan et al.

Summary: A high-performance and durable polymer electrolyte membrane fuel cell cathode catalyst with an ordered L1(0)-CoPt core and a thin Pt shell has been designed and prepared. It meets the performance target set by the U.S. Department of Energy and shows less than 40% loss in mass activity after 30,000 accelerated stress test voltage cycles.

CHEM CATALYSIS (2022)

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Article Chemistry, Physical

Tailoring electrode microstructure via ink content to enable improved rated power performance for platinum cobalt/high surface area carbon based polymer electrolyte fuel cells

Tim Van Cleve et al.

Summary: This study investigates the effects of ink formulation on the performance of PtCo/HSC cathode electrocatalysts, finding that water content in the ink has little impact on ionomer coverage, and water-rich inks lead to smaller aggregates that improve oxygen transport. State-of-the-art membrane electrode assemblies with Pt loadings of 0.03/0.08 mgPt/cm(2) were produced, demonstrating excellent performance under various conditions.

JOURNAL OF POWER SOURCES (2021)

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Article Multidisciplinary Sciences

Sulfur-anchoring synthesis of platinum intermetallic nanoparticle catalysts for fuel cells

Cheng-Long Yang et al.

Summary: Atomically ordered intermetallic nanoparticles show promise for catalytic applications, with platinum intermetallics synthesized on porous sulfur-doped carbon supports demonstrating high activity and resistance to metal sintering. The intermetallic libraries of small nanoparticles exhibit high mass efficiency in proton-exchange-membrane fuel cells, achieving significant activity levels.

SCIENCE (2021)

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Article Chemistry, Physical

Toward the Continuous Production of Multigram Quantities of Highly Uniform Supported Metallic Nanoparticles and Their Application for Synthesis of Superior Intermetallic Pt-Alloy ORR Electrocatalysts

Luka Pavko et al.

Summary: A fast and easy pulse combustion method has been developed for continuous production of high-metal-loaded and highly uniform supported metallic nanoparticles. By combining PC technology with the DP method, superior intermetallic Pt-M electrocatalysts have been successfully produced for proton exchange membrane fuel cells applications.

ACS APPLIED ENERGY MATERIALS (2021)

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New roads and challenges for fuel cells in heavy-duty transportation

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Summary: The recent release of hydrogen economy roadmaps highlights the need for increased global investment in hydrogen production, storage, infrastructure and utilization. The shift in focus towards heavy-duty vehicle applications for fuel cell technologies is discussed, along with the required improvements in fuel cell systems and materials to meet efficiency and durability requirements. The article also summarizes the latest market outlooks and targets for heavy-duty vehicle applications.

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Designing the next generation of proton-exchange membrane fuel cells

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Summary: The rapid growth of proton-exchange membrane fuel cell technology is driving the demand for clean and sustainable global energy applications. Increasing PEMFC power density is critical for commercialization, with ambitious goals set globally. Future high-power-density PEMFCs will focus on improving membrane electrode assembly components, water and thermal management, and materials.

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Direct Synthesis of Intermetallic Platinum-Alloy Nanoparticles Highly Loaded on Carbon Supports for Efficient Electrocatalysis

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JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Review Chemistry, Multidisciplinary

Intermetallic Nanoparticles: Synthetic Control and Their Enhanced Electrocatalysis

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ACCOUNTS OF CHEMICAL RESEARCH (2019)

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Revealing the atomic ordering of binary intermetallics using in situ heating techniques at multilength scales

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PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2019)

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Hard-Magnet L10-CoPt Nanoparticles Advance Fuel Cell Catalysis

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JOULE (2019)

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Fe Stabilization by Intermetallic L1(0)-FePt and Pt Catalysis Enhancement in L1(0)-FePt/Pt Nanoparticles for Efficient Oxygen Reduction Reaction in Fuel Cells

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Boosting Fuel Cell Performance with Accessible Carbon Mesopores

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ACS ENERGY LETTERS (2018)

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Oxygen Reduction Activity and Durability of Ordered and Disordered Pt3Co Alloy Nanoparticle Catalysts at Practical Temperatures of Polymer Electrolyte Fuel Cells

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JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2017)

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Review Chemistry, Physical

Alloy vs. intermetallic compounds: Effect of the ordering on the electrocatalytic activity for oxygen reduction and the stability of low temperature fuel cell catalysts

Ermete Antolini

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Review Chemistry, Multidisciplinary

Intermetallic Nanocrystals: Syntheses and Catalytic Applications

Yucong Yan et al.

ADVANCED MATERIALS (2017)

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The Priority and Challenge of High-Power Performance of Low-Platinum Proton-Exchange Membrane Fuel Cells

Anusorn Kongkanand et al.

JOURNAL OF PHYSICAL CHEMISTRY LETTERS (2016)

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Atomically Resolved Dealloying of Structurally Ordered Pt Nanoalloy as an Oxygen Reduction Reaction Electrocatalyst

Andraz Pavlisic et al.

ACS CATALYSIS (2016)

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Article Materials Science, Multidisciplinary

Ordering and surface segregation in Co 1-c Ptc nanoparticles: A theoretical study from surface alloys to nanoalloys

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Tuning Nanoparticle Structure and Surface Strain for Catalysis Optimization

Sen Zhang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

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Effect of ordering of PtCu3 nanoparticle structure on the activity and stability for the oxygen reduction reaction

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Effect of the chemical order on the electrocatalytic activity of model PtCo electrodes in the oxygen reduction reaction

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Structurally ordered intermetallic platinum-cobalt core-shell nanoparticles with enhanced activity and stability as oxygen reduction electrocatalysts

Deli Wang et al.

NATURE MATERIALS (2013)

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Structurally Ordered FePt Nanoparticles and Their Enhanced Catalysis for Oxygen Reduction Reaction

Jaemin Kim et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)

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Lattice-strain control of the activity in dealloyed core-shell fuel cell catalysts

Peter Strasser et al.

NATURE CHEMISTRY (2010)

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Effect of Particle Size of Platinum and Platinum-Cobalt Catalysts on Stability Against Load Cycling

Koichi Matsutani et al.

PLATINUM METALS REVIEW (2010)

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Article Chemistry, Multidisciplinary

Modeling Size and Shape Effects on the Order-Disorder Phase-Transition Temperature of CoPt Nanoparticles

Weihong Qi et al.

SMALL (2010)

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Article Chemistry, Physical

Heat-Treated PtCo3 Nanoparticles as Oxygen Reduction Catalysts

H. Schulenburg et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2009)

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Size and shape effects on the order-disorder phase transition in CoPt nanoparticles

D. Alloyeau et al.

NATURE MATERIALS (2009)

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Article Chemistry, Physical

Activity of ordered and disordered Pt-Co alloy phases for the electroreduction of oxygen in catalysts with multiple coexisting phases

Shirlaine Koh et al.

JOURNAL OF POWER SOURCES (2007)

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Article Electrochemistry

Activity-stability relationships of ordered and disordered alloy phases of Pt3Co electrocatalysts for the oxygen reduction reaction (ORR)

Shirlaine Koh et al.

ELECTROCHIMICA ACTA (2007)

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Article Multidisciplinary Sciences

Improved oxygen reduction activity on Pt3Ni(111) via increased surface site availability

Vojislav R. Stamenkovic et al.

SCIENCE (2007)

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Article Chemistry, Multidisciplinary

Effect of surface composition on electronic structure, stability, and electrocatalytic properties of Pt-transition metal alloys: Pt-skin versus Pt-skeleton surfaces

Vojislav R. Stamenkovic et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2006)

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Article Chemistry, Physical

Influence of atomic ordering on the electrocatalytic activity of Pt-Co alloys in alkaline electrolyte and proton exchange membrane fuel cells

LF Xiong et al.

JOURNAL OF MATERIALS CHEMISTRY (2004)

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Review Materials Science, Multidisciplinary

Formation of carbon-supported PtM alloys for low temperature fuel cells: a review

E Antolini

MATERIALS CHEMISTRY AND PHYSICS (2003)

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