Understanding nanoparticle porosity via nanoimpacts and XPS: electro-oxidation of platinum nanoparticle aggregates

Literature Information

Publication Date 2017-05-10
DOI 10.1039/C7CP01737E
Impact Factor 3.676
Authors

Xue Jiao, Eden E. L. Tanner, Stanislav V. Sokolov, Robert G. Palgrave, Neil P. Young, Richard G. Compton


View Original

Abstract

The porosity of platinum nanoparticle aggregates (PtNPs) is investigated electrochemically via particle-electrode impacts and by XPS. The mean charge per oxidative transient is measured from nanoimpacts; XPS shows the formation of PtO and PtO2 in relative amounts defined by the electrode potential and an average oxidation state is deduced as a function of potential. The number of platinum atoms oxidised per PtNP is calculated and compared with two models: solid and porous spheres, within which there are two cases: full and surface oxidation. This allows insight into extent to which the internal surface of the aggregate is ‘seen’ by the solution and is electrochemically active.

Related Literature

Methodological keys for accurate simulations

Ymène Houari, Adèle D. Laurent

2013-05-17 Paper

DOI: 10.1039/C3CP50791B

Interaction of electrolyte molecules with carbon materials of well-defined porosity: characterization by solid-state NMR spectroscopy

Lars Borchardt, Martin Oschatz, Silvia Paasch, Stefan Kaskel, Eike Brunner

2013-07-19 Paper

DOI: 10.1039/C3CP52283K

Impact of molecular solvophobicity vs. solvophilicity on device performances of dimeric perylene diimide based solution-processed non-fullerene organic solar cells

Zhenhuan Lu, Xin Zhang, Chuanlang Zhan, Bo Jiang, Xinliang Zhang, Lili Chen, Jiannian Yao

2013-06-06 Paper

DOI: 10.1039/C3CP51475G

CH4combustion cycles at Pd/Al2O3 – important role of support and oxygen access

Izabela Czekaj, Katarzyna A. Kacprzak, John Mantzaras

2013-05-16 Paper

DOI: 10.1039/C3CP51085A

Charge transport characteristics of a high-mobility diketopyrrolopyrrole-based polymer

Dae Sung Chung, Il Kang, Yun-Hi Kim, Soon-Ki Kwon

2013-07-08 Paper

DOI: 10.1039/C3CP52422A

An ENDOR and DFT analysis of hindered methyl group rotations in frozen solutions of bis(acetylacetonato)-copper(ii)

Katherine M. Sharples, Emma Carter, Colan E. Hughes, Kenneth D. M. Harris, James A. Platts, Damien M. Murphy

2013-08-05 Paper

DOI: 10.1039/C3CP52464G

Thermal unfolding and refolding of lysozyme in deep eutectic solvents and their aqueous dilutions

Rocio Esquembre, Jesus M. Sanz, J. Gerard Wall, Francisco del Monte, C. Reyes Mateo, M. Luisa Ferrer

2013-05-08 Paper

DOI: 10.1039/C3CP44299C

A microiterative intrinsic reaction coordinate method for large QM/MM systems

Iakov Polyak, Eliot Boulanger, Kakali Sen, Walter Thiel

2013-05-31 Paper

DOI: 10.1039/C3CP51669E

Iron cation catalyzed reduction of N2O by CO: gas-phase temperature dependent kinetics

Joshua J. Melko, Shaun G. Ard, Joseph A. Fournier, Jun Li, Nicholas S. Shuman, Hua Guo, Albert A. Viggiano

2013-05-31 Paper

DOI: 10.1039/C3CP50335F

Enantiotopic discrimination and director organization in the twist-bend nematic phase

Cristina Greco, Geoffrey R. Luckhurst, Alberta Ferrarini

2013-07-18 Communication

DOI: 10.1039/C3CP52222A

You might also like

Compound Q&A

How should waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3) be handled?

Waste containing N-Methoxy-N-methyl-1,3-thiazole-5-carboxamide (CAS: 898825-89-3...

898825-89-3N-Methoxy-N-methyl-1...
Compound Q&A

How should N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine (CAS: 1318338-47-4) be stored?

N-(4-Biphenylyl)dibenzo[b,d]furan-4-amine should be stored in a tightly sealed c...

1318338-47-4N-(4-Biphenylyl)dibe...
Compound Q&A

What is the market or research trend for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1)?

The market for 3-Acetamido-5-amino-2,4,6-triiodobenzoic acid (CAS: 1713-07-1) is...

1713-07-13-Acetamido-5-amino-...
Compound Q&A

How should Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) be stored?

Benzyl 2-O-acetyl-3,4,6-tri-O-benzyl-beta-D-galactopyranoside (CAS: 61820-03-9) ...

61820-03-9Benzyl 2-O-acetyl-3,...
Compound Q&A

What regulatory guidelines apply to 2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3)?

2-Ethylpiperazine dihydrochloride (CAS: 438050-52-3) is regulated under the Glob...

438050-52-32-Ethylpiperazine di...
Compound Q&A

What regulatory guidelines apply to 1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 119462-56-5)?

1,1'-[1,3-Phenylenebis(methylene)]bis(3-methyl-1H-pyrrole-2,5-dione) (CAS: 11946...

119462-56-51,1'-[1,3-Phenyleneb...
Compound Q&A

Are there alternatives to 5-Fluoro-2-(1-pyrrolidinyl)pyridine (CAS: 1287217-79-1) in synthesis?

Several alternatives can be used in the synthesis of 5-Fluoro-2-(1-pyrrolidinyl)...

1287217-79-15-Fluoro-2-(1-pyrrol...
Compound Q&A

What precautions should be taken when handling 6-Bromoimidazo[1,2-a]pyridin-8-amine (CAS: 676371-00-9)?

When handling 6-Bromoimidazo[1,2-a]pyridin-8-amine, it is important to wear appr...

676371-00-96-Bromoimidazo[1,2-a...
Compound Q&A

Are there alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS: 1049740-22-8) in synthesis?

Alternatives to (2S,4R)-4-(4-Nitrobenzyl)pyrrolidine-2-carboxylic acid hydrochlo...

1049740-22-8(2S,4R)-4-(4-Nitrobe...

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.