Polystyrene microspheres: Inactive supporting material for recycling and recovering colloidal nanocatalysts in solution

Journal of Physical Chemistry Letters

Volumn 1, Issue 1, 2010, Pages 28-31

  Mahmoud, M A ^a   Snyder, B ^a   El Sayed, M A ^a  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

Catalysis; Interfaces; Surfaces

Indexed keywords

4-NITROPHENOL; CATALYTIC MECHANISMS; INTERFACES; NANO-CATALYST; NANOCATALYSTS; NANOCUBES; POLYSTYRENE MICRO-SPHERE; SODIUM BOROHYDRIDES; SOLID SUPPORTS; SUPPORTING MATERIAL;

ACTIVATION ENERGY; CATALYSIS; MICROSPHERES; PLATINUM; QUANTUM CHEMISTRY; SILICA; SODIUM;

POLYSTYRENES;

EID: 77149138658     PISSN: None     EISSN: 19487185     Source Type: Journal    
DOI: 10.1021/jz9000449     Document Type: Article

References (24)

1. Lee, H.; Habas, S. E.; Kweskin, S.; Butcher, D.; Somorjai, G. A.; Yang, P. Morphological control of catalytically active platinum nanocrystals. Angew. Chem., Int. Ed. 2006, 45, 7824-7828.
2. Tian, N.; Zhou, Z.-Y.; Sun, S.-G.; Ding, Y.; Wang, Z. L.Synthesis of tetrahexahedral platinum nanocrystals with high-index facets and high electro-oxidation activity. Science (Washington, DC, U. S.) 2007, 316, 732-735.
3. Mahmoud, M. A.; Tabor, C. E.; El-Sayed, M. A.; Ding, Y.; Wang, Z. L. A new catalytically active colloidal platinum nanocatalyst: The multiarmed nanostarsingle crystal. J. Am. Chem. Soc. 2008, 130, 4590-4591.
4. Narayanan, R.; El-Sayed, M. A. Changing catalytic activity during colloidal platinum nanocatalysis due to shape changes: Electron-transfer reaction. J. Am. Chem. Soc. 2004, 126,7194-7195.
5. Freund, P. L.; Spiro, M. Colloidal catalysis: The effect of sol size and concentration. J. Phys. Chem. 1985, 89, 1074-1077.
6. Kweskin, S. J.; Rioux, R. M.; Habas, S. E.; Komvopoulos, K.; Yang, P.; Somorjai, G. A. Carbon monoxide adsorption and oxidation on monolayer films of cubic platinum nanoparticles investigated by infrared-visible sum frequency generation vibrational spectroscopy. J. Phys. Chem. B 2006, 110, 15920-15925.
7. Rioux, R. M.; Song, H.; Grass, M.; Habas, S.; Niesz, K.; Hoefelmeyer, J. D.; Yang, P.; Somorjai, G. A. Monodisperse platinum nanoparticles of well-defined shape: Synthesis, characterization, catalytic properties and future prospects. Top. Catal. 2006, 39, 167-174.
8. Zhao, H.; Yin, F.-J.; Xu, X.-Y.; Tong, Z.; Zheng, J.-W.; Zhao, G. A novel catalyst SiO2@NiO for reduction of 4-NP. Synth. React. Inorg., Met.-Org., Nano-Met. Chem. 2007, 37, 15-18.
9. Strongin, D. R.; Carrazza, J.; Bare, S. R.; Somorjai, G. A. The importance of C7 sites and surface roughness in the ammonia synthesis reaction over iron. J. Catal. 1987, 103, 213-215.
10. Mahmoud, M. A.; El-Sayed, M. A. Aggregation of gold nanoframes reduces, rather than enhances, SERS efficiencydue to the trade-off of the inter- and intraparticle plasmonic fields. Nano Lett. 2009, 9, 3025-3031.
11. Yen, C. W.; Mahmoud, M. A.; El-Sayed, M. A. Photocatalysis in gold nanocage nanoreactors. J. Phys. Chem. A 2009, 113, 4340-4345.
12. Henglein, A. Small-particle research: Physicochemical properties of extremely small colloidal metal and semiconductor particles. Chem. Rev. 1989, 89, 1861-1873.
13. Mahmoud, M. A.; El-Sayed, M. A. Reaction of platinum nanocatalyst with the ferricyanide reactant to produce Prussian Blue analog complexes. J. Phys. Chem. C 2007, 111, 17180-17183.
14. Narayanan, R.; Tabor, C.; El-Sayed, M. A. Can the observed changes in the size or shape of a colloidal nanocatalyst reveal the nanocatalysis mechanism type: Homogeneous or heterogeneous?. Top. Catal. 2008, 48, 60-74.
15. Ahmadi, T. S.; Wang, Z. L.; Green, T. C.; Henglein, A.; El-Sayed, M. A. Shape-controlled synthesis of colloidal platinum nanoparticles. Science (Washington, DC) 1996, 272, 1924-1926.
16. Badr, Y.; Mahmoud, M. A. Photocatalytic degradation of methyl orange by gold silver nano-core/silica nano-shell. J. Phys. Chem. Solids 2007, 68, 413-419.
17. Pradhan, N.; Pal, A.; Pal, T. Silver nanoparticle catalyzed reduction of aromatic nitro compounds. Colloids Surf., A 2002,196,247-257.
18. Chang, Y.-C.; Chen, D.-H. Catalytic reduction of 4-nitrophenol by magnetically recoverable Au nanocatalyst. J. Hazard. Mater. 2009, 165, 664-669.
19. Esumi, K.; Isono, R.; Yoshimura, T. Preparation of PAMAM- and PPI-metal (silver, platinum, and palladium) nanocomposites and their catalytic activities for reduction of 4-nitrophenol. Langmuir 2004, 20, 237-243.
20. Ghosh, S. K.;Mandal, M.;Kundu, S.; Nath, S.; Pal, T.Bimetallic Pt-Ni nanoparticles can catalyze reduction of aromatic nitro compounds by sodium borohydride in aqueous solution. Appl. Catal., A 2004, 268, 61-66.
21. Hain, J.; Schrinner, M.; Lu, Y.; Pich, A. Design of multicomponent microgels by selective deposition of nanomaterials. Small 2008, 4, 2016-2024.
22. Lee, J.-H.; Mahmoud, M. A.; Sitterle, V.; Sitterle, J.; Meredith, J. C. Facile preparation of highly-scattering metal nanoparticle-coated polymer microbeads and their surface plasmon resonance. J. Am. Chem. Soc. 2009, 131, 5048-5049.
23. Burda, C.; Chen, X.; Narayanan, R.; El-Sayed, M.A. Chemistry and properties of nanocrystals of different shapes. Chem. Rev. (Washington, DC, U.S.) 2005, 105, 1025-1102.
24. Narayanan, R.; El-Sayed, M. A. Effect of nanocatalysis in colloidal solution on the tetrahedral and cubic nanoparticle shape: Electron-transfer reaction catalyzed by platinum nanoparticles. J. Phys. Chem. B 2004, 108, 5726-5733.