DEM cell

Table 10. Comparison of filterpress reactor sizes for the electrosynthesis of L-cysteine hydrochloride. Catholyte = 2 M HC1 at 25°C j = 2 kAm 2 v = 0.35 ms 1 Pb cathode in presence of turbulence promotor DEM cell [13, p. 327J...

Di-sec-butyl percarbonate (SBP), 6 303 Di-sec-butylphenol (DSBP), 2 230 physical properties of, 2 205t 2,4-Di-sec-butylphenol, 2 230 2,6-Di-sec-butylphenol, 2 230 health and safety data, 2 220t N, N -Di-sec- bu tyl-p -pheny lenediamine, 3 108 Dished electrode membrane (DEM) cell, 9 669... 

Fig. 12. Diagram of the DEM cell from Electrocatalytic, Inc. Cross sections of (a) divided, and (b), undivided configurations.

Figure 21. Mass Spectroscopic Cyclic Voltammograms (MSCV) of CO2 recorded at m/z = 44 in a DEMS cell during bulk methanol oxidation on (1) coreduced Pto.8Ruo.2/C, (2) coreduced Pto.sRuo.s/C and (3) co-deposited (Pto,8+Ruo.2)/C catalysts (0.5 M H2SO4, 0.1 M MeOH v =10 mV s", T = 298 K, electrolyte flow = 5 pL s metal loading = 28 pgmaai cm ).

FIGURE 19.6 Simultaneously measured faradaic (a) and mass spectrometric (b) current response on the copper electrode potential in a thin-layer flow-through DEMS cell. Solution contained (mol L-1) CuS04 (un-hydrous)—0.008 EDTA—0.01 H2CO (solid lines) or D2CO (dotted lines)—0.02 solvent H20 (A) or D20 (B). pH = 13 (adjusted by adding NaOH or NaOD, respectively) temperature 25°C. Potential sweep rate 5 mV s Electrolyte flow rate 30 p,L s-1. Circles indicate open-circuit conditions (filled—H2 evolution, open—D2 evolution). (From Jusys, Z. and Vaskelis, A., Electrochim. Acta, 42, 449, 1997.)... 

DEM Cell, Steetley Eng. Ltd., PO Box 20, Brierley Hill, West Midlands... 

FIGURE 5.7. General purpose flow electrolyzers (a) DEM cell section of divided cell section of undivided cell, (b) SU cell, (c) FM21 cell. Top FMOl laboratory reactor bottom FM21 electrolyzer. Reproduced with permission. 

Fig. 2J0 The dished electrode membrane (DEM) cell, (a) Section of the divided unit cell, (b) ScctLOEi of the undivided unit cell, (c) Exploded view of a divided unit cetL (d) An intermediate size reactor, comprising six unit cells, which is used for pilot-plant and small-scale production of, for example, pharmaceuticals, A larger cell stack, incorporating 34 unit cells is shown in Fig. 7.26. (Courtesy Electricity Council Research Centre)i...

Fig. 2.39 Typical laboratory pilot-scale facilities using divided, parallel-plate cells, (a) The major components of a flow system for anodic electrosynthesis. After Reilly Tar and Chemical Corp.) (see also Fig. 6.7) (b) A small laboratory pilot facility based on the MP ElectroCell. Here, an electrodialysis process is being performed. The facility is also used for electrosynthesis by means of simple modification of the cell components and process streams. (Courtesy Electrosynthesis Co., Inc.), (c) A DEM cell for synthesis. (Courtesy Electricity Council Research Centre and University of Strathclyde.)...

---