An investigation of modified AgI solid electrodes containing the homopiperazinium cation—I. Synthesis and characterization
✍ Scribed by Joseph J. Rosenberg; Mahamane Bouzou; Olivier Cerclier; Jacques Estienne
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 484 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0013-4686
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✦ Synopsis
Ahstraet-Homopiperazinium and N, N, N', N'-tetramethylhomopiperazinium diiodide (briefly designated as HI, and TMHI,) have been synthesized and characterixed by Srared spectroscopy and proton magnetic rekance spe&oscopy. The-two diazonia diiodides were reacted withsilver tide in &&entrations ranging from 75 to 95 equivalent I-of AgI. In both HI,-AgI and TMHI,-AgI systems, the study of the total electrical conductivity with respect to temperature shows that the Arrhenius equation is obeyed. At 25"C, the maximal conductivity is reached for an equivalent content of 85% in the HI,-AgI system with a value of 0.003 (ohm cm)-'. For the TMHI,&I system a dissymetric commsition deuen-&nce of the ekctricd conduc&ty is &served around a n&in-m&mum at 90% AgI con&t corresp&ding to a 0.027 (ohm cm)-' conductivity. Existence in this system of a second electrolyte phase around a 77.5-80% composition in AgI is swtained by electrochemical conductivity measurements and an independent X-ray powder di&ction study.