Ripening of nanowire-supported gold nanoparticles
Source abstract
Abstract
Gold nanoparticles have applications ranging from catalysts for low temperature oxidation of CO to solar energy capture in the infrared. For all these applications, particle size and shape are critical. In this study, nanoparticle gold formed on GaN nanowires by plasma-enhanced chemical vapor deposition was annealed at temperatures ranging from 150 to 270 °C for 24 h. Particle size was measured before and after annealing using a field emission scanning electron microscope. Ripening of the gold particles was observed even at the lowest annealing temperatures of the study. The particle growth kinetics showed an Arrhenius relationship with activation energy of 27.38 kJ/mol. This value suggests that ripening occurs by particle migration and coalescence rather than adatom diffusion.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: nanoparticles nucleation surface interactions · Gold and Silver Nanoparticles Synthesis and Applications · Nanowire Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. Bore MT, Pham HN, Ward TL and Datye AK (2004) Role of pore curvature on the thermal stability of gold nanoparticles in mesoporous silica. Chem Commun (Camb) 2620–2621. doi: 10.1039/b407575g10.1039/b407575g ↗
2. Buffat P, Borel J-P (1976) Size effect on the melting temperature of gold particles. Phys Rev A 13:2287–2298. doi: 10.1103/PhysRevA.13.228710.1103/PhysRevA.13.2287 ↗
3. Campbell CT (2004) The active site in nanoparticle gold catalysis. Science 306:234–235. doi: 10.1126/science.1104246710.1126/science.1104246 ↗
4. Datye AK, Xu Q, Kharas KC, McCarty JM (2006) Particle size distributions in heterogeneous catalysts: what do they tell us about the sintering mechanism? Catal Today 111:59–67. doi: 10.1016/j.cattod.2005.10.01310.1016/j.cattod.2005.10.013 ↗
5. Dobrokhotov V, McIlroy DN, Norton MG, Abuzir A, Yeh WJ, Stevenson I, Pouy R, Bochenek J, Cartwright M, Wang L, Dawson J, Beaux M, Berven CA (2006a) Principles and mechanisms of gas sensing by GaN nanowires functionalized with gold nanoparticles. J Appl Phys 99:104302–104307. doi: 10.1063/1.219542010.1063/1.2195420 ↗
6. Dobrokhotov V, McIlroy DN, Norton MG, Berven CA (2006b) Transport properties of hybrid nanopatricle–nanowire systems and their application to gas sensing. Nanotechnology 17:4135–4142. doi: 10.1088/0957-4484/17/16/02410.1088/0957-4484/17/16/024 ↗
7. Eilers H, Biswas A, Pounds TD, Norton MG, Elbahri M (2006) Teflon AF/Ag nanocomposites with tailored optical properties. J Mater Res 21:2168–2171. doi: 10.1557/JMR.2006.026710.1557/jmr.2006.0267 ↗
8. Foss CA Jr, Hornyak GL, Stockert JA, Martin CR (1994) Template-synthesized nanoscopic gold particles: optical spectra and the effects of particle size and shape. J Phys Chem 98:2963–2971. doi: 10.1021/j100062a03710.1021/j100062a037 ↗
9. Haruta M (1997) Size- and support-dependency in the catalysis of gold. Catal Today 36:153–156. doi: doi:10.1016/S0920-5861(96)00208-810.1016/S0920-5861(96)00208-8 ↗
10. Hummel RE, Geier HJ (1975) Activation energy for electrotransport in thin silver and gold films. Thin Solid Films 25:335–342. doi: 10.1016/0040-6090(75)90053-X10.1016/0040-6090(75)90053-X ↗
11. Jak MJJ, Konstapel C, van Kreuningen A, Verhoeven J, Frenken JWM (2000) Scanning tunneling microscopy study of the growth of small palladium particles on TiO2(110). Surf Sci 457:295–310. doi: 10.1016/S0039-6028(00)00431-310.1016/S0039-6028(00)00431-3 ↗
12. LaLonde AD, Norton MG, Zhang D, Gangadean D, Alkhateeb A, Padmanabhan R, McIlroy DN (2005) Controlled growth of gold nanoparticles on silica nanowires. J Mater Res 20:3021–3027. doi: 10.1557/JMR.2005.036810.1557/JMR.2005.0368 ↗
13. Landolt-Boernstein (1990) Numerical data and functional relationships in science and technology, diffusion in solid metals and alloys, vol 26. Springer, Berlin, p 640
14. Link S, Mohamed MB, El-Sayed MA (1999) Simulation of the optical absorption spectra of gold nanorods as a function of their aspect ratio and the effect of the medium dielectric constant. J Phys Chem B 103:3073–3077. doi: 10.1021/jp990183f10.1021/jp990183f ↗
15. Malik AQ, Damit S (2003) Outdoor testing of single crystal silicon solar cells. Renew Energy 28:1433–1445. doi: 10.1016/S0960-1481(02)00255-010.1016/S0960-1481(02)00255-0 ↗
16. Mitchell CEJ, Howard A, Carney M, Egdell RG (2001) Direct observation of behaviour of Au nanoclusters on TiO2(110) at elevated temperatures. Surf Sci 490:196–210. doi: 10.1016/S0039-6028(01)01333-410.1016/S0039-6028(01)01333-4 ↗
17. Parker SC, Grant AW, Bondzie VA, Campbell CT (1999) Island growth kinetics during the vapor deposition of gold onto TiO2(110). Surf Sci 441:10–20. doi: 10.1016/S0039-6028(99)00753-010.1016/S0039-6028(99)00753-0 ↗
18. Sahaym U, Norton MG (2008) Advances in the application of nanotechnology in enabling a ‘hydrogen economy’. J Mater Sci 43:5395–5429. doi: 10.1007/s10853-008-2749-010.1007/s10853-008-2749-0 ↗
19. Schimpf S, Lucas M, Mohr C, Roddemerck U, Brückner A, Radnik J, Hofmeister H, Claus P (2002) Supported gold nanoparticles: in-depth catalyst characterization and application in hydrogen and oxidation reactions. Catal Today 72:63–78. doi: doi:10.1016/S0920-5861(01)00479-510.1016/S0920-5861(01)00479-5 ↗
20. Shalaev VM (2002) Optical nonlinearities of fractal composites. Top Appl Phys 82:93–114. doi: 10.1007/3-540-44948-5_510.1007/3-540-44948-5_5 ↗
21. Venables JA (1994) Atomic processes in crystal growth. Surf Sci 299–300:798–817. doi: 10.1016/0039-6028(94)90698-X10.1016/0039-6028(94)90698-X ↗
22. Wynblatt P, Gjostein NA (1975) Supported metal crystallites. Prog Solid State Chem 9:21–58. doi: 10.1016/0079-6786(75)90013-810.1016/0079-6786(75)90013-8 ↗
23. Wynblatt P, Gjostein NA (1976) Particle growth in model supported metal catalysts—I Theory. Acta Metall 24:1165–1174. doi: 10.1016/0001-6160(76)90034-110.1016/0001-6160(76)90034-1 ↗
24. Yevtushenko O, Natter H, Hempelmann R (2006) Grain-growth kinetics of nanostructured gold. Thin Solid Films 515:353–356. doi: 10.1016/j.tsf.2005.12.09810.1016/j.tsf.2005.12.098 ↗
25. Zhu L, Lu G, Mao S, Chen J (2007) Ripening of silver nanoparticles on carbon nanotubes. J Nanopart Res 2:149–156. doi: doi:10.1142/S1793292007000507