Particle size, characterization overview

Barman BN, Giddings JC (1991) Overview of colloidal aggregation by sedimentation field-flow fractionation. In Provder T (ed) Particle size distribution II Assessment and characterization. American Chemical Society, Washington, DC, pp 217-228... 

This chapter is concerned with the development of an alternative way to build up the protective tribologic fihn between sliding surfaces that does not imply a chemical reaction of the additive with the substrates in contact. The approach is based on the use of nano-sized particles of tribologic film precursors consisting of reverse micelles or encapsulated mineral particles. First an overview of the various systems that could be used will be presented. Some examples of each case will then be deeply analysed (characterization of the colloidal system, tribologic properties, antiwear film structure and morphology and antiwear action mechanisms). 

A variety of techniques are available for sizing particles of pharmaceutical interest. The goal of this chapter is to provide an overview of common techniques currently in use for sizing of powders, and to illustrate their applications. The discussion will focus on techniques used to characterize powders above one micron (jxm) however, it should be emphasized that in some cases the same methods may also be applicable to submicron particles. 

Ghadiri, M., Farhadpour, F. A., Clift, R. and Seville, J. P. K. (1991). Particle Characterization Size and Morphology. In Powder Metallurgy An Overview. Ed. Jenkins and Wood. London Institute of Metals. 

In this chapter, we will review the reaction dynamics studies which has been performed on supported model catalysts in order to unravel the elementary steps of heterogeneous catalytic reactions. In particular we will focus on the aspects that cannot be studied on extended surfaces like the effect of the size and shape of the metal particles and the role of the substrate in the reaction kinetics. In the first part we will describe the experimental methods and techniques used in these studies. Then we present an overview of the preparation and the structural characterization of the metal particle. Later, we will review the adsorption studies of NO, CO and 02. Finally, we will review the two reactions that have been investigated on the supported model catalysts the CO oxidation and the NO reduction by CO. 

Xiu, G., D. Zhang, J. Chen, X. Huang, Z. Chen, H. Guo and J. Pan (2004) Characterization of major water-soluble inorganic ions in size-fractionated particulate matters in Shanghai campus ambient air. Atmospheric Environment 38, 227-236 Yao, X., M. Fang and C. C. Chan (2003) The size dependence of chloride depletion in fine and coarse sea-salt particles. Atmospheric Environment 37, 743-751 Yokelson, R. I, T. Karl, P. Artaxo, D. R. Blake, T. J. Christian, D. W. T. Griffith, A. Guenther and W. M. Hao (2007) The tropical forest and fire emissions experiment Overview and airborne fire emission factor measurements. Atmospheric Chemistry and Physics Discussion 1, 6903-6958... 

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