Monodisperse Pt3Conanoparticles as electrocatalyst: the effects of particle size and pretreatment on electrocatalytic reduction of oxygen

Literature Information

Publication Date 2010-06-04
DOI 10.1039/C000822B
Impact Factor 3.676
Authors

Chao Wang, Guofeng Wang, Dennis van der Vliet, Kee-Chul Chang, Nenad M. Markovic, Vojislav R. Stamenkovic


View Original

Abstract

Monodisperse Pt3Co nanoparticles have been synthesized with size control via an organic solvothermal approach. The obtained nanoparticles were incorporated into a carbon matrix and applied as electrocatalysts for the oxygen reduction reaction to investigate the effects of particle size and pretreatment on their catalytic performance. It has been found that the optimal conditions for maximum mass activity were with particles of ∼4.5 nm and a mild annealing temperature of about 500 °C. While the particle size effect can be correlated to the average surface coordination number, Monte Carlo simulations have been introduced to depict the nanoparticle structure and segregation profile, which revealed that the annealing temperature has a direct influence on the particle surface relaxation, segregation and adsorption/catalytic properties. The obtained fundamental understanding of activity enhancement in Pt-bimetallic alloy catalysts could be utilized to guide the development of advanced nanomaterials for catalytic applications.

Related Literature

Design of S–S bond containing maleimide-conjugated closo-dodecaborate (SSMID): identification of unique modification sites on albumin and investigation of intracellular uptake

Shinichi Sato, Hiroya Asami, Tomoko Hasegawa, Jun-Ya Kohno, Hiroyuki Nakamura

2019-04-03 Communication

DOI: 10.1039/C9OB00584F

Selectfluor-promoted regioselective chlorination/bromination of 2-aminopyridines and 2-aminodiazines using LiCl/LiBr

Jiao Hu, Gang Zhou, Yawei Tian, Xiaoming Zhao

2019-05-30 Communication

DOI: 10.1039/C9OB00972H

N-Hydroxyphthalimide/benzoquinone-catalyzed chlorination of hydrocarbon C–H bond using N-chlorosuccinimide

Zi-Hao Li, Biao-Lin Jiang, Jian-Wei Li

2019-02-26 Paper

DOI: 10.1039/C9OB00216B

4-Aminoindoles as 1,4-bisnucleophiles for diversity-oriented synthesis of tricyclic indoles bearing 3,4-fused seven-membered rings

Shaomin Chen, Palanisamy Ravichandiran, Ahmed El-Harairy, Yves Queneau, Minghao Li

2019-05-30 Paper

DOI: 10.1039/C9OB01045A

Autocatalyzed three-component cyclization of polyfluoroalkyl-3-oxo esters, methyl ketones and alkyl amines: a novel approach to 3-alkylamino-5-hydroxy-5-polyfluoroalkylcyclohex-2-en-1-ones

Marina V. Goryaeva, Svetlana O. Kushch, Olga G. Khudina, Yanina V. Burgart, Yulia S. Kudyakova, Marina A. Ezhikova, Mikhail I. Kodess, Pavel A. Slepukhin, Lilya Sh. Sadretdinova, Natalya P. Evstigneeva, Natalya A. Gerasimova, Victor I. Saloutin

2019-03-26 Paper

DOI: 10.1039/C9OB00293F

Planarized B,N-phenylated dibenzoazaborine with a carbazole substructure: electronic impact of the structural constraint

Mikinori Ando, Mika Sakai, Naoki Ando, Masato Hirai

2019-05-14 Communication

DOI: 10.1039/C9OB00934E

Contents list

Front/Back Matter

DOI: 10.1039/C9OB90082A

You might also like

Compound Q&A

What is 1-(2,4,6-Trifluorophenyl)ethanol (CAS: 1250113-83-7)?

1-(2,4,6-Trifluorophenyl)ethanol is an organic compound with the CAS number 1250...

1250113-83-71-(2,4,6-Trifluoroph...
Compound Q&A

Is 1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) safe?

1-(2,4-Dimethoxybenzyl)-4-(hydroxymethyl)-2-pyrrolidinone (CAS: 919111-34-5) is ...

919111-34-51-(2,4-Dimethoxybenz...
Compound Q&A

What are the physical and chemical properties of (7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one (CAS: 51419-51-3)?

(7S,15R)-6β,15-Diacetoxy-7α,20-epoxy-7-hydroxykaura-2,16-dien-1-one is a crystal...

51419-51-3(7S,15R)-6β,15-Diace...
Compound Q&A

What regulatory guidelines apply to rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3618-04-0)?

The compound rac-ethyl (1r,4r)-4-hydroxycyclohexane-1-carboxylate, trans (CAS: 3...

3618-04-0rac-ethyl (1r,4r)-4-...
Compound Q&A

What is the market or research trend for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3)?

The market for 2-(2,4-Difluorophenoxy)-3-nitropyridine (CAS: 175135-62-3) is cur...

175135-62-32-(2,4-Difluoropheno...
Compound Q&A

What are the main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9)?

The main uses of 6-Diazo-5-oxo-L-norleucine (CAS: 157-03-9) include research in ...

157-03-96-Diazo-5-oxo-L-norl...
Compound Q&A

What precautions should be taken when handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5)?

When handling 2-Aminoethyl-mono-amide-DOTA-tris(tBu ester) (CAS: 173308-19-5), i...

173308-19-52-Aminoethyl-mono-am...
Compound Q&A

How is 5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) typically synthesized?

5-Methylimidazo[1,2-a]pyridine-3-carbaldehyde (CAS: 178488-37-4) can be synthesi...

178488-37-45-Methylimidazo[1,2-...
Compound Q&A

Are there alternatives to 2,4,6-Trihydroxyisophthalaldehyde (CAS: 4396-13-8) in synthesis?

There are alternative reagents that can be used in the synthesis of 2,4,6-Trihyd...

4396-13-82,4,6-Trihydroxyisop...
Compound Q&A

What is (2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid (CAS: 179461-52-0)?

(2Z)-3-(5-Fluoro-1H-indol-3-yl)-2-sulfanylacrylic acid is a chemical compound wi...

179461-52-0(2Z)-3-(5-Fluoro-1H-...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.