Graphitized carbon-support

Consequently, since graphitized carbon-supports have lower carbon corrosion rates, the use of cathode catalysts with graphitized supports significantly reduces H2/air-front start-stop damage.12,22 Furthermore, if the ORR activity of the anode electrode is reduced by lowering anode Pt loading, H2/air-front start-stop degradation is decreased.22,23... 

Active Solids (GSC). Most of the common active solids have been used in GSC silica gel, alumina, charcoal, and so on. Because their surfaces tend to be heterogeneous in activity, they produce undesirable tailing peaks and are not very popular this problem can be greatly reduced by coating a thin layer of liquid on the support, as is shown in Figure 8.4 for the graphitized carbon support called Carbopack. 

Factors Affecting Stabilization of Metal Particles on the Surface of Quasi-Graphitic Carbon Supports... 

The third process can be circumvented by using more corrosion-resistant graphitized carbon supports. Other critical aspect is catalyst sensitivity to the dynamic behavior of the fuel cell, e.g., ditring the fuel cell ignition or extinction. 

The corrosion resistance of the carbon catalyst support can be improved by graphitization, as highlighted in the text. Nevertheless, a catalyst with graphitized carbon support can exhibit a... 

Some of the kinetic results are also listed in Table 7.7 for two graphitized carbon supports (GMC and V3G), two boron-doped carbon supports (BC-11, BC-12), and a silica support. Partial pressure studies revealed that the dependency on benzene (Bz) was typically between zero and inverse order but the dependency on H2 was surprisingly high and quite temperature dependent, ranging above 3 order at times, as shown in Table 7.8 and Figures 7.13 and 7.14. The latter figure also indicates an activity maximum... 

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