Abstract
Chemical synthesis coupled with a microwave irradiation process allowed for the control of size (6-40 nm), shape, and shell thickness of Ni/NiO core/shell nanoparticles. In this unique synthetic route, the size of Ni nanoparticles (NiNPs) was strongly influenced by the nickel salt-to-stabilizer ratio and the amount of the stabilizer. Interestingly, it was observed that the shape of the nanoparticles was altered by varying the reaction time, where longer reaction times resulted in annealing effects and rupture of the stabilizer micelle leading to distinct shapes of Ni/NiO core/shell nanostructures. Product cooling rate was another important parameter identified in this study that not only affected the shape, but also the crystal structure of the core/shell nanoparticles. In addition, a simple and cost-effective method of microwave irradiation of NiNPs led to the formation of distinctly shaped hollow NiO nanoparticles. These high surface area core/shell nanoparticles with well-controlled morphologies are important and can lead to significant advancement in the design of improved fuel cells, electrochromic display devices, and catalysis systems.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2883-2893 |
| Number of pages | 11 |
| Journal | Journal of Nanoparticle Research |
| Volume | 12 |
| Issue number | 8 |
| DOIs | |
| State | Published - Oct 2010 |
| Externally published | Yes |
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Keywords
- Core/shell nanoparticles
- Crystal defects
- Hollow nanostructures
- Morphology
- Nanocomposites
- Nanomanufacturing
- Nickel
- Nickel oxide
ASJC Scopus subject areas
- Bioengineering
- Chemistry(all)
- Materials Science(all)
- Modeling and Simulation
- Condensed Matter Physics
- Atomic and Molecular Physics, and Optics
Cite this
Morphological control of Ni/NiO core/shell nanoparticles and production of hollow NiO nanostructures. / Chopra, Nitin; Claypoole, Leslie; Bachas, Leonidas G.
In: Journal of Nanoparticle Research, Vol. 12, No. 8, 10.2010, p. 2883-2893.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Morphological control of Ni/NiO core/shell nanoparticles and production of hollow NiO nanostructures
AU - Chopra, Nitin
AU - Claypoole, Leslie
AU - Bachas, Leonidas G
PY - 2010/10
Y1 - 2010/10
N2 - Chemical synthesis coupled with a microwave irradiation process allowed for the control of size (6-40 nm), shape, and shell thickness of Ni/NiO core/shell nanoparticles. In this unique synthetic route, the size of Ni nanoparticles (NiNPs) was strongly influenced by the nickel salt-to-stabilizer ratio and the amount of the stabilizer. Interestingly, it was observed that the shape of the nanoparticles was altered by varying the reaction time, where longer reaction times resulted in annealing effects and rupture of the stabilizer micelle leading to distinct shapes of Ni/NiO core/shell nanostructures. Product cooling rate was another important parameter identified in this study that not only affected the shape, but also the crystal structure of the core/shell nanoparticles. In addition, a simple and cost-effective method of microwave irradiation of NiNPs led to the formation of distinctly shaped hollow NiO nanoparticles. These high surface area core/shell nanoparticles with well-controlled morphologies are important and can lead to significant advancement in the design of improved fuel cells, electrochromic display devices, and catalysis systems.
AB - Chemical synthesis coupled with a microwave irradiation process allowed for the control of size (6-40 nm), shape, and shell thickness of Ni/NiO core/shell nanoparticles. In this unique synthetic route, the size of Ni nanoparticles (NiNPs) was strongly influenced by the nickel salt-to-stabilizer ratio and the amount of the stabilizer. Interestingly, it was observed that the shape of the nanoparticles was altered by varying the reaction time, where longer reaction times resulted in annealing effects and rupture of the stabilizer micelle leading to distinct shapes of Ni/NiO core/shell nanostructures. Product cooling rate was another important parameter identified in this study that not only affected the shape, but also the crystal structure of the core/shell nanoparticles. In addition, a simple and cost-effective method of microwave irradiation of NiNPs led to the formation of distinctly shaped hollow NiO nanoparticles. These high surface area core/shell nanoparticles with well-controlled morphologies are important and can lead to significant advancement in the design of improved fuel cells, electrochromic display devices, and catalysis systems.
KW - Core/shell nanoparticles
KW - Crystal defects
KW - Hollow nanostructures
KW - Morphology
KW - Nanocomposites
KW - Nanomanufacturing
KW - Nickel
KW - Nickel oxide
UR - http://www.scopus.com/inward/record.url?scp=78649907784&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649907784&partnerID=8YFLogxK
U2 - 10.1007/s11051-010-9879-4
DO - 10.1007/s11051-010-9879-4
M3 - Article
VL - 12
SP - 2883
EP - 2893
JO - Journal of Nanoparticle Research
JF - Journal of Nanoparticle Research
SN - 1388-0764
IS - 8
ER -