Energy Conversion and Management, Vol.48, No.2, 450-453, 2007
Reclaim/recycle of Pt/C catalysts for PEMFC
Platinum was reclaimed from Pt/C catalysts of the PEMFC by drying the degraded Pt/C catalysts at 80 degrees C for 3 h, followed by sintering at 600 degrees C for 6 h, dissolution by aqua fortis, purification with hydrochloric acid, reduction and filtration, successively. Pt/C catalysts were prepared again from the reclaimed Pt by two proposed processes, e.g., pH value control process and mass control process. The fuel cell with recycled catalysts presented a power density of over 0.18 W cm(-2). The reclaiming of Pt/C catalysts is a potential way for recycling Pt for PEMFC, reducing the cost of PEMFC. (c) 2006 Elsevier Ltd. All rights reserved.