Morphology, chemical state of nanometric-sized Pt–Cu and Pt–Ag particles, and their photocatalytic activity for mineralization of methanol
Source abstract
Abstract
Nanometric-sized bimetallic Pt–Cu and Pt–Ag nanoparticles protected with PVP were synthesized using a modified protocol of the alkaline polyol method. The nanoparticles were characterized using a series of experimental methods (TEM, XPS, and XRD) to elucidate their morphology, structure, and chemical state. The Pt–Cu powder consisted of nanoparticles with well-defined spherical morphology and a mean diameter of 2.8 nm. In the case of the Pt–Ag system, the small nanoparticles of around 2 nm showed an interesting tendency to assemble in 1D structure, generally with a filament-like morphology. The Pt–Cu and Pt–Ag nanoparticles supported on TiO2 showed good and stable activity for methanol mineralization. The formation of hydrogen along with CO2 as reaction products suggests that the supported bimetallic nanoparticles are promising materials for energy-oriented applications, as well as for photochemical abatement of organic pollutants.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Copper-based nanomaterials and applications · Laser-Ablation Synthesis of Nanoparticles
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Balint I, Miyazaki A, Aika K-I (2002) NO reduction by CH4 over well-structured Pt nanocrystals supported on −Al2O3. Appl Catal B 37:217–229. doi: 10.1016/S0926-3373(01)00338-110.1016/S0926-3373(01)00338-1 ↗
2. Barrabes N, Cornado D, Foettinger K, Dafinov A, Llorca J, Medina F, Rupprechter G (2009) Hydrodechlorination of trichloroethylene on noble metal promoted Cu-hydrotalcite-derived catalysts. J Catal 263:239–246. doi: 10.1016/j.jcat.2009.02.01510.1016/j.jcat.2009.02.015 ↗
3. Bock C, Paquet C, Couillard M, Botton GA, MacDougall BR (2004) Size-selected synthesis of Pt Ru nano-catalysts: reaction and size control mechanism. J Am Chem Soc 126:8028–8037. doi: 10.1021/ja049581910.1021/ja0495819 ↗
4. Carp O, Huisman CL, Reller A (2004) Photoinduced reactivity of titanium dioxide. Prog Solid State Chem 32:33–177. doi: 10.1016/j.progsolidschem.2004.08.00110.1016/j.progsolidstchem.2004.08.001 ↗
5. Chen A, Holt-Hindle P (2010) Platinum-based nanostructured materials: synthesis, properties, and applications. Chem Rev 110:3767–3804. doi: 10.1021/cr900390210.1021/cr9003902 ↗
6. Croy JR, Mostafa S, Hickman L, Heinrich H, Cuenya BR (2008) Bimetallic Pt-Metal catalysts for the decomposition of methanol: effect of secondary metal on the oxidation state, activity, and selectivity of Pt. Appl Catal A 350:207–216. doi: 10.1016/j.apcata.2008.08.01310.1016/j.apcata.2008.08.013 ↗
7. Feng Y–Y, Bi L-X, Liu Z-H, Kong DS, Yu Z-Y (2012) Significantly enhanced electrocatalytic activity for methanol electro-oxidation on Ag oxide-promoted PtAg/C catalysts in alkaline electrolyte. J Catal 290:18–25. doi: 10.1016/j.jcat.2012.02.01310.1016/j.jcat.2012.02.013 ↗
8. Figlarz M, Fievet F, Lagier JP (1985) Reduction process of metal-based inorganic precursors in liquid polyols to produce monodisperse metal particles French Pattern No. 8221483 USA Patent Specification No 4539041
9. Fu X, Wang Y, Wu N, Gui L, Tang YJ (2001) Surface modification of small platinum nanoclusters with alkylamine and alkylthiol: an XPS study on the influence of organic ligands on the Pt 4f binding energies of small platinum nanoclusters. J Coll Interface Sci 243:326–330. doi: 10.1006/jcis 2001.786110.1006/jcis.2001.7861 ↗
10. Halas NJ, Lal S, Chang W-S, Link S, Nordlander P (2011) Plasmons in strongly coupled metallic nanostructures. Chem Rev 111:3913–3961. doi: 10.102/cr2000061k10.1021/cr200061k ↗
11. Kim K, Kim L, Shin KS (2011) Coreduced Pt/Ag alloy nanoparticles: surface-enhanced Raman scattering and electrocatalytic activity. J Phys Chem 115:23374–23380. doi: 10.1021/jp2063707
12. Kitchin JR, Nørskov JK, Barteau MA, Chen JG (2004) Modification of the surface electronic and chemical properties of Pt(111) by subsurface 3d transition metals. J Chem Phys 120:10240–10246. doi: 10.1063/1.173736510.1063/1.1737365 ↗
13. Koplin E, Simon U (2008) Application of metal nanoclusters in nanoelectronics. In: Corain B, Schmid G, Toshima T (eds) Metal nanoclusters in catalysis and material science: the issue of size control. Elsevier, Amsterdam, pp 107–12810.1016/B978-044453057-8.50007-6 ↗
14. Lahiri D, Bunker B, Mishra B, Zhang Z, Meisel D, Doudna CM, Bertino MF, Blum FD, Tokuhiro AT, Chattopadhyay S, Shibata T, Terry J (2005) Bimetallic Pt–Ag and Pd–Ag nanoparticles. Appl Phys 97:094303-8–094304-1. doi: 10.1063/1.88804310.1063/1.1888043 ↗
15. Miyazaki A, Balint I, Aika K-I, Nakano Y (2001) Preparation of Ru nanoparticles supported on γ-Al2O3 and its novel catalytic activity for ammonia synthesis. J Catal 204:364–371. doi: 10.1006/jcat2001.341810.1006/jcat.2001.3418 ↗
16. Papa F, Negrila C, Miyazaki A, Balint I (2011) Morphology and chemical state of PVP-protected Pt, Pt–Cu, and Pt–Ag nanoparticles prepared by alkaline polyol method. J Nanopart Res 13:5057–5064. doi: 10.1007/s11051-011-0486-910.1007/s11051-011-0486-9 ↗
17. Pasricha R, Gupta S, Sastry M, Singh N, Gupta P (2010) Synthesis of Ag–Au bimetallic film at liquid–liquid interface and its application in vapor sensing. Thin Solid Films 519:1248–1251. doi: 10.1016/j.tsf.2010.08.07810.1016/j.tsf.2010.08.078 ↗
18. Patsoura A, Kondarides DI, Verykios X (2007) Photocatalytic degradation of organic pollutants with simultaneous production of hydrogen. Catal Today 124:94–102. doi: 10.1016/j.cattod.2007.03.02810.1016/j.cattod.2007.03.028 ↗
19. Romand R, Roubin M, Deloume J-P (1978) X-ray photoelectron emission studies of mixed selenides AgGaSe2 and Ag9GaSe6. J Solid State Chem 25:59–6410.1016/0022-4596(78)90043-9 ↗
20. Shuzhong D, Fanhua X, Jingfa D (1988) The adsorption of oxygen and the oxidation of methanol on silver-platinum alloys. J Catal 109:170–179. doi: 10.1016/0021-95179(8890195-910.1016/0021-9517(88)90195-9 ↗
21. Shyu JZ, Otto K (1988) Identification of platinum phases on γ-Al2O3 by XPS. Appl Surf Sci 32:246–25210.1016/0169-4332(88)90085-2 ↗
22. Strohmeier BR, Leyden DE, Field RS, Hercules DM (1985) Surface spectroscopic characterization of CuAl2O3 catalysts. J Catal 94:514–53010.1016/0021-9517(85)90216-7 ↗
23. Sun Y, Xia Y (2002) Shape-controlled synthesis of gold and silver nanoparticles. Science 298:2176–2179. doi: 10.1126/science.107722910.1126/science.1077229 ↗
24. Sun Y, Zhuang L, Hong X, Liu P (2007) Collapse in crystalline structure and in catalytic activity of Pt nanoparticles on reducing the particle size to 1 nm. J Am Chem Soc 129:15465–15467. doi: 10.1021/ja07617710.1021/ja076177b ↗
25. Tang W, Henkelman G (2009) Charge redistribution in core-shell nanoparticles to promote oxygen reduction. J Chem Phys 130:194504-1–194504-6. doi: 10.1063/1.3134684
26. Wang Y, Ren J, Deng K, Gui L, Tang Y (2000) Preparation of tractable platinum, rhodium, and ruthenium nanoclusters with small particle size in organic media. Chem Mater 12:1622–1627. doi: 10.1021/cm000085310.1021/cm0000853 ↗
27. Weihua W, Xuelin T, Kai C, Gengyu C (2006) Synthesis and characterization of Pt–Cu bimetallic alloy nanoparticles by reverse micelles method. Colloids Surf A 273:35–42. doi: 10.1016/j.colsurfa.2005.07.02910.1016/j.colsurfa.2005.07.029 ↗
28. Yamamoto TA, Nakagawa T, Seino S, Nitani H (2010) Bimetallic nanoparticles of Pt M (M = Au, Cu, Ni) supported on iron oxide: radiolytic synthesis and CO oxidation catalysis. Appl Catal A 387:195–202. doi: 10.1016/j.apcata.2010.08.02010.1016/j.apcata.2010.08.020 ↗
29. Zhang X, Li D, Dong D, Wang H, Webley PA (2010) One-step fabrication of ordered Pt–Cu alloy nanotube arrays for ethanol electrooxidation. Mat Lett 64:1169–1172. doi: 10.1016/j.matlet.2010.02.04110.1016/j.matlet.2010.02.041 ↗