Calcination Bau ite E ercises - tur-design.pl
Calcination in air and reduction with hydrogen were found to have a profound influence on Pd/CNFs property (Table 2).After calcination in air at 250°C for 2 h, the catalytic activity decreased evidently when using H 2 PdCl 4 as the precursor, but change only slightly when using Pd(NH 3) 4 Cl 2.However, when first calcinated and then reduced with a Ha/Ar gas stream at …