Electrode: auxiliary metallized membrane

Fig. 11 Configuration and assembly of the tube-in-tube actuation concept (TITAN). A a porous PVDF fiber to provide support for the metallized polyurethane tube (OD 1050 pm, ID 950 pm). B as a working electrode, a metallized polyurethane tube wrapped with 050 pm platinum wire coated with polypyrrole. C a PVDF membrane used for the electrolyte storage. D as the auxiliary electrode, a metallized PVDF membrane coated with polypyrrole connected via stainless steel mesh. E aplastic tube with a length of 3 cm(OD 5 mm, ID 4 mm) used to pack the entire assembly (Reprinted with permission from Wu et al. 2005. Copyright (2005) Institute of Physics)...

Figure 4.2 — (A) Schematic diagram of an ammonia-N-sensitive probe based on an Ir-MOS capacitor. (Reproduced from [20] with permission of the American Chemical Society). (B) Pneumato-amperometric flow-through cell (a) upper Plexiglas part (b) metallized Gore-Tec membrane (c) auxiliary Gore-Tec membrane (d) polyethylene spacer (e) bottom Plexiglas part (/) carrier stream inlet (g) carrier stream outlet. (C) Schematic representation of the pneumato-amperometric process. The volatile species Y in the carrier stream diffuses through the membrane pores to the porous electrode surface in the electrochemical cell and is oxidized or reduced. (Reproduced from [21] with permission of the American Chemical Society).

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