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Poly(p-phenylene) (PPP) was chemically synthesized via the oxidative polymerization of benzene and doped with FeCl3. Electrical conductivity response of doped PPP (dPPP) towards CO, H2 and NH3 was investigated. dPPP shows no response towards CO and H2, but it shows a definite negative response to NH3. The electrical conductivity sensitivity of dPPP increases with increasing NH3 concentration. In order...
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