Graphite granules

Freguia, S., Rabaey, K., Yuan, Z., and Keller, J. (2007) Non-catalyzed cathodic oxygen reduction at graphite granules in microbial fuel cells. Electrochim. 

S. You, Q. Zhao, J. Zhang, J. Jiang, C. Wan, M. Du and S. Zhao, A graphite-granule membrane-less tubular air-cathode microbial fuel cell for power generation under continuously operational conditions, /. Power Sources 173, 2007, 172-177. 

Fig. 5.3 Photographs of (A) graphite granules 1.5 to 5 mm in diameter (B) large graphite brush 5 cm diameter and 7 cm long with a specific surface area of 7170 m /m of brush volume (C) smaller graphite brush 2.5 cm in diameter and 2.5 cm in length with 18,200 m /m of brush volume and (D) section of a tow of graphite fibers.

Fig. 6.19 Tubular reactor design where the tube is made of a CEM and contains conductive graphite granules packed into the center of the tube, with the ferricyanide cathoiyte fluid overflowing the outside of the column which is covered with a thick woven graphite mat. (A) Schematic. [Reprinted from Rabaey et al. (2005b), with permission of the American Chemicai Society.] (B) Photograph of the reactor. (Provided by K. Rabaey, Ghent University.)...

A different tubular design was developed by Rabaey et al. (2005b) based on using conductive graphite granules that were packed into a CEM (CMI-7000) soldered to form a tube (Fig. 6.19). The influent flowed up through the packed bed and out the top of the reactor, while the cathoiyte (ferricyanide) flowed down and over the outside of the... 

Fig. 8.4 (A) BEAMR reactor examined by Ditzig et al. (2007) for hydrogen production from wastewater. The anode chamber contains graphite granules and the cathode chamber has a valve to release hydrogen gas. (B) Anode potential (vs.

Fig. 11.7 A two-bottle flow through system based on using graphite granules as the anode, and carbon paper cathodes. The mesh (A) is clamped between the tubes, holding the graphite granules (B) in the anode chamber. (C) The reactor shown with the arrows indicating the flow path through the two chambers. The cathode chamber...

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