Stability and phase transfer of catalytically active platinum nanoparticle suspensions

Indira Sriram; Alexandra E. Curtin; Ann N. Chiaramonti; J. Hunter Cuchiaro; Andrew R. Weidner; Tegan M. Tingley; Lauren F. Greenlee; Kavita M. Jeerage

doi:10.1007/s11051-015-3034-1

Stability and phase transfer of catalytically active platinum nanoparticle suspensions

Indira Sriram, Alexandra E. Curtin, Ann N. Chiaramonti, J. Hunter Cuchiaro, Andrew R. Weidner, Tegan M. Tingley, Lauren F. Greenlee, Kavita M. Jeerage

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

In this work, we present a robust synthesis protocol for platinum nanoparticles that yields a monomodal dispersion of particles that are approximately 100 nm in diameter. We determine that these particles are actually agglomerates of much smaller particles, creating a “raspberry” morphology. We demonstrate that these agglomerates are stable at room temperature for at least 8 weeks by dynamic light scattering. Furthermore, we demonstrate consistent electrocatalytic activity for methanol oxidation. Finally, we quantitatively explore the relationship between dispersion solvent and particle agglomeration; specifically, particles are found to agglomerate abruptly as solvent polarity decreases.

Original language	English (US)
Article number	230
Journal	Journal of Nanoparticle Research
Volume	17
Issue number	5
DOIs	https://doi.org/10.1007/s11051-015-3034-1
State	Published - May 26 2015

All Science Journal Classification (ASJC) codes

Bioengineering
Atomic and Molecular Physics, and Optics
General Chemistry
Modeling and Simulation
General Materials Science
Condensed Matter Physics

Access to Document

10.1007/s11051-015-3034-1

Cite this

@article{f15794735d1b499c813b346f367873dc,

title = "Stability and phase transfer of catalytically active platinum nanoparticle suspensions",

abstract = "In this work, we present a robust synthesis protocol for platinum nanoparticles that yields a monomodal dispersion of particles that are approximately 100 nm in diameter. We determine that these particles are actually agglomerates of much smaller particles, creating a “raspberry” morphology. We demonstrate that these agglomerates are stable at room temperature for at least 8 weeks by dynamic light scattering. Furthermore, we demonstrate consistent electrocatalytic activity for methanol oxidation. Finally, we quantitatively explore the relationship between dispersion solvent and particle agglomeration; specifically, particles are found to agglomerate abruptly as solvent polarity decreases.",

author = "Indira Sriram and Curtin, {Alexandra E.} and Chiaramonti, {Ann N.} and Cuchiaro, {J. Hunter} and Weidner, {Andrew R.} and Tingley, {Tegan M.} and Greenlee, {Lauren F.} and Jeerage, {Kavita M.}",

note = "Publisher Copyright: {\textcopyright} 2015, Springer Science+Business Media Dordrecht (outside the USA).",

year = "2015",

month = may,

day = "26",

doi = "10.1007/s11051-015-3034-1",

language = "English (US)",

volume = "17",

journal = "Journal of Nanoparticle Research",

issn = "1388-0764",

publisher = "Springer Netherlands",

number = "5",

}

TY - JOUR

T1 - Stability and phase transfer of catalytically active platinum nanoparticle suspensions

AU - Sriram, Indira

AU - Curtin, Alexandra E.

AU - Chiaramonti, Ann N.

AU - Cuchiaro, J. Hunter

AU - Weidner, Andrew R.

AU - Tingley, Tegan M.

AU - Greenlee, Lauren F.

AU - Jeerage, Kavita M.

PY - 2015/5/26

Y1 - 2015/5/26

N2 - In this work, we present a robust synthesis protocol for platinum nanoparticles that yields a monomodal dispersion of particles that are approximately 100 nm in diameter. We determine that these particles are actually agglomerates of much smaller particles, creating a “raspberry” morphology. We demonstrate that these agglomerates are stable at room temperature for at least 8 weeks by dynamic light scattering. Furthermore, we demonstrate consistent electrocatalytic activity for methanol oxidation. Finally, we quantitatively explore the relationship between dispersion solvent and particle agglomeration; specifically, particles are found to agglomerate abruptly as solvent polarity decreases.

AB - In this work, we present a robust synthesis protocol for platinum nanoparticles that yields a monomodal dispersion of particles that are approximately 100 nm in diameter. We determine that these particles are actually agglomerates of much smaller particles, creating a “raspberry” morphology. We demonstrate that these agglomerates are stable at room temperature for at least 8 weeks by dynamic light scattering. Furthermore, we demonstrate consistent electrocatalytic activity for methanol oxidation. Finally, we quantitatively explore the relationship between dispersion solvent and particle agglomeration; specifically, particles are found to agglomerate abruptly as solvent polarity decreases.

UR - http://www.scopus.com/inward/record.url?scp=84930194635&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84930194635&partnerID=8YFLogxK

U2 - 10.1007/s11051-015-3034-1

DO - 10.1007/s11051-015-3034-1

M3 - Article

AN - SCOPUS:84930194635

SN - 1388-0764

VL - 17

JO - Journal of Nanoparticle Research

JF - Journal of Nanoparticle Research

IS - 5

M1 - 230

ER -

Stability and phase transfer of catalytically active platinum nanoparticle suspensions

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this