PSS composites

Lee HJ, Lee J, Park S-M (2010) Electrochemistry of conductive polymers. 45. Nanoscale conductivity of PEDOT and PEDOT PSS composite films studied by current-sensing AFM. J Phys Chem B 114 2660... 

PSS composite membranes with an oxide interlayer have demonstrated stability for more than 6000 h at 350-450 °C [156]. 

The superior conductivity of separated metallic SWNTs was also verified in the transparent conductive PEDOT PSS composites. A suspension of the separated metallic SWNTs or the pre-separation nanotube mixture in DMSO was mixed with aqueous PEDOT PSS for spray coating on to glass substrate. 

In 2012, G. H. Kim et al. prepared Gp-filled PEDOT PSS composite films via solution spin coating method [3]. XPS and Raman analyses identified that strong tt-tt interactions existed between Gp and PEDOT PSS, which facilitated the dispersion of Gp in the polymer matrix and reduced the carrier hopping barrier. The uniformly distributed Gp increased the interfacial area by 2-10 times as compared with CNT based composite on the same weight percentage. Moreover, well-stacked multilayer structure... 

In addition to PANI- and PEDOT PSS-based composites, the TE properties of P3HT/GNs and GP/PVDF composites were also reported [15, 30]. Flowever, their TE properties were much less than those of PANI- or PEDOT PSS-based composites. The highest power factor is only 0.16 and 0.52 xW/mK, respectively, about one order of magnitude less than that of PANI or PEDOT PSS composites. 

Cyclic voltammetiy (CV) was used to determine the effects of reduced graphene oxide in the rGO-PEDOT PSS composite as shown in Fig. 7.7. 

Figure 7.7 Electrochemical performance of rGO-PEDOT PSS composite in a three-electrode system (A) cyclic voltammograms of the composite electrodes before and after chemical reduction, (B) specific capacitance of rGO-PEDOT PSS composite (rGO PD 25] composite electrodes with different mass loading at 5 mV s , marked with the minimum active material mass for further electrochemical characterization, (C] variation of specific capacitance of different composites including PEDOT-PSS with scan rates, and (D] Nyquist plots of different composite electrodes (increasing PEDOTiPSS content from 25 to 75%, i.e., 25% PEDOT-PSS containing dispersion of GO is indicated as GO-PD 25 composite]. The inset shows the corresponding magnified high frequency region. Reprinted with permission from Ref. 197, Copyright 2014 Islam, Chidembo, Aboutalebi, Cardillo, Liu, Konstantinov and Dou.

Calles, J. A., Alique, D., Furones, L. (2014). Thermal stability and effect of typical water gas shift reactant composition on H2 permeability through a Pd-YSZ-PSS composite membrane. International Journal of Hydrogen Energy, 39, 1398—1409. 

Figure 6. TEM of Pt nanoparticies dispersed on PPy/PSS composite particles [24]. Reproduced by permission of The Royal Sodely of Chemistiy.

A similar problem was encountered when conductive polyaniline/PSS was used as the support. Fortunately, conducting poly(3,4-ethylenedioxythiophene) (PEDOT)/PSS composite was found to be much more stable. Before Pt deposition, a PEDOT/PSS composite possessed an electronic conductivity of 9.9 S cm while the conductivity of Vulcan XC-72 was 3.0 S cm measured under the same conditions. In other words, the conductive polymer composite was more than three times as conductive as the commercial carbon black. Pt nanoparticies with ca. 4 nm diameter were deposited onto PEDOT/PSS composite particles through the... 

The PEDOT-PSS composite support was employed in conjunction with Pt, PtSn, and PtPb for ethanol electrooxidation catalysis, showing the expected beneficial effect of Sn [329]. No comparison was provided with conventional carbon-supported or unsupported catalyst layers therefore, the effectivness of the support cannot be judiciously analyzed. 

A different batch of SWCNTs, namely Carbolex SWCNTs, were used in the preparation of SWCNT/PS/PEDOT PSS composites.Carbolex SWCNTs are produced by arc-discharge technology. This technique is used to produce SWCNTs on a large scale but with the disadvantage... 

The ultimate conductivity of the SWCNT/PEDOT PSS/PS composites is similar to that of the control blends (PEDOT PSS/ PS). It is important to note that the ultimate conductivity of HiPCO SWCNT/PS/PEDOT PSS composites is less than one order of magnitude higher than the corresponding conductivity of poor quality Carbolex SWCNT/PS/PEDOT PSS composites. The difference between HiPCO SWCNT/PS and Carbolex SWCNT/PS composites without the presence of PEDOT PSS, however, is approximately two... 

F. 33 Ammonia sensing response of a PEDOTiPSS polymer film, b MWCNT-PEDOT PSS composite to (i) 20 ppm (ii) 30 ppm of ammonia gas at room temperature... 

Figure 25.1 Sieverts plot fora Pd-Cu/porous stainless steel (PSS) composite membrane at 350°C. Pd 78 wt%, Cu 22 wt%, thickness 33.6 p,m, support Mott PSS grade 0.2 p,m (Ma et al., 2003).

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