... mainly as specialist adsorbents and catalysts or catalyst supports in areas such as fluid separations and reactions for environmental control. However, as discussed below, there are also emerging ... use of AC as liquid-phase adsorbents, in water purification for instance, and in the gas-phase as adsorbents for gas storage and separations [10,13], and as catalysts and catalyst supports ... Lannin, J. Phys. Chem. Solids 54, I801 (1993). 110 M. S. Dresselhaus and G. Dresselhaus, Light Scattering in Solids I11 51,3 (1982). edited by M. Cardona and G. Guntherodt, Springer-Verlag...