Morphology, Composition and Surface Properties of Novel Functional Multimetallic and Core-shell Nanoparticles and Assemblies
EMSL Project ID
30446
Abstract
This proposal focuses on the utilization of the EMSL User facilities for the investigation of Morphology, Composition and Surface Properties of Novel Multimetallic Alloy and Core-shell Nanoparticles and Nanostructures. It addresses many issues in the area of Science of Interfacial Phenomena in the Science Theme because the understanding of the interfacial control of the nanostructured materials is critical to environmental and energy related research and technology. One particular example involves the understanding of the catalytic structure-function relationships at the atomic level for precise control of catalytic activity and selectivity of the multimetallic alloy, core-shell nanoparticles, and molecularly-mediated assembly of the nanoparticles. The understanding of the correlation among the nanoscale size, shape, composition and surface properties of the nanoparticles and nanostructures will be critical for exploring the surface and interfacial reactivities and interactions in the targeted catalytic and sensor applications, which will lead to the development of new nanomaterials for fuel cells and chemical and biological sensors. The overall theme of these proposed studies is relevant to EMSLs mission because the outcomes will lead to the development of new nanomaterials for fuel cells and chemical or biological sensors.
Project Details
Project type
Large-Scale EMSL Research
Start Date
2008-08-01
End Date
2009-09-30
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members
Related Publications
Loukrakpam R, BN Wanjala, J Yin, B Fang, J Luo, M Shao, L Protsailo, T Kawamura, Y Chen, V Petkov, and CJ Zhong. 2011. "Structural and Electrocatalytic Properties of PtIrCo/C Catalysts for Oxygen Reduction Reaction." ACS Catalysis 1(5):562–572. doi:10.1021/cs200022s
Mott D, J Yin, MH Engelhard, R Loukrakpam, P Chang, G Miller, IT Bae, NC Das, CM Wang, J Luo, and CJ Zhong. 2010. "From Ultrafine Thiolate-Capped Copper Nanoclusters toward Copper Sulfide Nanodiscs: A Thermally Activated Evolution Route." Chemistry of Materials 22(1):261-271. doi:10.1021/cm903038w
Wanjala BN, B Fang, S Shan, V Petkov, P Zhu, R Loukrakpam, Y Chen, J Luo, J Yin, L Yang, M Shao, and CJ Zhong. 2012. "Design of Ternary Nanoalloy Catalysts: Effect of Nanoscale Alloying and Structural Perfection on Electrocatalytic Enhancement." Chemistry of Materials 24(22):4283–4293. doi:10.1021/cm301613j
Wanjala BN, J Luo, R Loukrakpam, B Fang, D Mott, P Njoki, MH Engelhard, HR Naslund, JK Wu, L Wang, L Malis, and CJ Zhong. 2010. "Nanoscale Alloying, Phase-Segregation, and Core-Shell Evolution of Gold-Platinum Nanoparticles and Their Electrocatalytic Effect on Oxygen Reduction Reaction." Chemistry of Materials 22(14):4282-4294.
Wanjala BN, R Loukrakpam, J Luo, P Njoki, D Mott, CJ Zhong, M Shao, L Protsailo, and T Kawamura. 2010. "Thermal Treatment of PtNiCo Electrocatalysts: Effects of Nanoscale Strain and Structure on the Activity and Stability for the Oxygen Reduction Reaction." Journal of Physical Chemistry C 114(41):17580-17590. doi:10.1021/jp106843k