Facile Approach to Enhance Oxygen Reduction Activity by Modification of Platinum Nanoparticles by Melamine-Formaldehyde Polymer

2019 ◽  
Vol 166 (8) ◽  
pp. F498-F505 ◽  
Author(s):  
Masafumi Asahi ◽  
Shin-ichi Yamazaki ◽  
Noboru Taguchi ◽  
Tsutomu Ioroi
Keyword(s):  
Oxygen Reduction ◽  
Platinum Nanoparticles ◽  
Melamine Formaldehyde ◽  
Reduction Activity

Platinum nanoparticles embedded in pyrolyzed nitrogen-containing cobalt complexes for high methanol-tolerant oxygen reduction activity

2010 ◽  
Vol 20 (35) ◽  
pp. 7551 ◽  
Author(s):  
Chen-Hao Wang ◽  
Hsin-Cheng Hsu ◽  
Sun-Tang Chang ◽  
He-Yun Du ◽  
Chin-Pei Chen ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Platinum Nanoparticles ◽  
Cobalt Complexes ◽  
Reduction Activity ◽  
Methanol Tolerant

scholarly journals Electronic metal-support interaction enhanced oxygen reduction activity and stability of boron carbide supported platinum

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Colleen Jackson ◽  
Graham T. Smith ◽  
David W. Inwood ◽  
Andrew S. Leach ◽  
Penny S. Whalley ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Oxygen Reduction ◽  
Platinum Nanoparticles ◽  
Electronic Interaction ◽  
Acidic Media ◽  
X Ray ◽  
Reduction Activity ◽  
Supported Platinum ◽  
Metal Support Interaction ◽  
Metal Support

Abstract Catalysing the reduction of oxygen in acidic media is a standing challenge. Although activity of platinum, the most active metal, can be substantially improved by alloying, alloy stability remains a concern. Here we report that platinum nanoparticles supported on graphite-rich boron carbide show a 50–100% increase in activity in acidic media and improved cycle stability compared to commercial carbon supported platinum nanoparticles. Transmission electron microscopy and x-ray absorption fine structure analysis confirm similar platinum nanoparticle shapes, sizes, lattice parameters, and cluster packing on both supports, while x-ray photoelectron and absorption spectroscopy demonstrate a change in electronic structure. This shows that purely electronic metal-support interactions can significantly improve oxygen reduction activity without inducing shape, alloying or strain effects and without compromising stability. Optimizing the electronic interaction between the catalyst and support is, therefore, a promising approach for advanced electrocatalysts where optimizing the catalytic nanoparticles themselves is constrained by other concerns.

Strain Effects on Oxygen Reduction Activity of Pr2NiO4 Caused by Gold Bulk Dispersion for Low Temperature Solid Oxide Fuel Cells

2019 ◽  
Vol 2 (2) ◽  
pp. 1210-1220 ◽  
Author(s):  
Sun Jae Kim ◽  
Taner Akbay ◽  
Junko Matsuda ◽  
Atsushi Takagaki ◽  
Tatsumi Ishihara
Keyword(s):  
Fuel Cells ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Oxygen Reduction ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Strain Effects ◽  
Reduction Activity

Unveiling the Roles of Lattice Strain and Descriptor Species on Pt-Like Oxygen Reduction Activity in Pd–Bi Catalysts

ACS Catalysis ◽  
2021 ◽  
pp. 800-808
Author(s):  
Shreya Sarkar ◽  
S. D. Ramarao ◽  
Tisita Das ◽  
Risov Das ◽  
C. P. Vinod ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Lattice Strain ◽  
Reduction Activity

Monovacancy Coupled Pyridinic N Site Enables Surging Oxygen Reduction Activity of Metal-Free CNx Catalyst

2021 ◽  
Vol 9 (3) ◽  
pp. 1264-1271
Author(s):  
Zhenzhen Duan ◽  
Guokang Han ◽  
Hua Huo ◽  
Zeyu Lin ◽  
Liping Ge ◽  
...  
Keyword(s):  
Oxygen Reduction ◽  
Metal Free ◽  
Reduction Activity ◽  
Pyridinic N

scholarly journals Enhanced oxygen reduction activity with rare earth metal alloy catalysts in proton exchange membrane fuel cells

2021 ◽  
pp. 138454
Author(s):  
Björn Eriksson ◽  
Gerard Montserrat-Sisó ◽  
Rosemary Brown ◽  
Tomáš Skála ◽  
Rakel Wreland Lindström ◽  
...  
Keyword(s):  
Rare Earth ◽  
Fuel Cells ◽  
Oxygen Reduction ◽  
Rare Earth Metal ◽  
Proton Exchange Membrane ◽  
Earth Metal ◽  
Proton Exchange ◽  
Reduction Activity ◽  
Exchange Membrane ◽  
Alloy Catalysts

Iron-Based Catalysts with Improved Oxygen Reduction Activity in Polymer Electrolyte Fuel Cells

Science ◽  
2009 ◽  
Vol 324 (5923) ◽  
pp. 71-74 ◽  
Author(s):  
Michel Lefèvre ◽  
Eric Proietti ◽  
Frédéric Jaouen ◽  
Jean-Pol Dodelet
Keyword(s):  
Fuel Cells ◽  
Oxygen Reduction ◽  
Polymer Electrolyte ◽  
Polymer Electrolyte Fuel Cells ◽  
Reduction Activity ◽  
Iron Based ◽  
Iron Based Catalysts
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