Growth of Nanometric Gold Particles in Solution Phase

Autor:	C. N. R. Rao, Giridhar U. Kulkarni, Ram Seshadri, V. Vijayakrishnan, G. Ananthakrishna, G. N. Subbanna
Rok vydání:	1995
Předmět:	Absorption spectroscopy Chemistry Gaussian General Engineering Time evolution Standard deviation law.invention Crystallography symbols.namesake law Chemical physics Colloidal gold Scientific method symbols Particle size Physical and Theoretical Chemistry Electron microscope
Zdroj:	The Journal of Physical Chemistry. 99:5639-5644
ISSN:	1541-5740 0022-3654
DOI:	10.1021/j100015a056
Popis:	The time evolution of colloidal gold particles in the nanometric regime has been investigated by employing electron microscopy and electronic absorption spectroscopy. The particle size distributions are essentially Gaussian and show the same time dependence for both the mean and the standard deviation, enabling us to obtain a time-independent universal curve for the particle size. Temperature dependent studies show the growth to be an activated process with a barrier of about 18 kJ mol(-1). We present a phenomenological equation for the evolution of particle size and suggest that the growth process is stochastic.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dc3f02e109acc75fde4f0146a22234c2 https://doi.org/10.1021/j100015a056 Zobrazit plný text záznamu