Nitrogen-doped carbons carbon black

Nitrogen-doped carbon materials shows good catalysts support in terms of catalytic activity and stability [18,19]. A graphitic carbon nitride with three-dimensionally extended highly ordered pore arrays has been reported as a support for a Pt-Ru alloy catalyst of a DMFC anode. The nanostructured C3N4 has 73-83% higher power density than Vulcan XC-72, a commercial carbon black. 

Fig. 14.16 ECA evolution (inset normalized ECA) for Pt supported on nitrogen-doped MC (square) and Pt supported on high surface area carbon black (circle). Operating conditions voltage cycling between 0.5 to 1.0 V vs. RHE, 50 mVs"1 scan rate, room temperature, 0.1 M HC104 (Reprinted with permission from [151] - 2012 Wiley).

For the preparation of the electrocatalyst or catalytic ink, a predetermined amount of carbon black (VULCAN XC 72) was added to the Sb-doped Sn02 sol and stirred at room temperature for several hours. The carbon black was then washed thoroughly with water and dried at 100°C for 1 h followed by further drying at 500°C under nitrogen for 30 min. 

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