On the Extraction of Double-Layer Capacitances for Nonideal Capacitive Behaviors

ÖZCAN M., DEHRİ İ., ERBİL M.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, cilt.51, sa.43, ss.14061-14064, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 51 Sayı: 43
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1021/ie301609j
  • Dergi Adı: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.14061-14064
  • Çukurova Üniversitesi Adresli: Evet

Özet

The equation for ideal capacitive behavior of a metal/solution interface was modified in such a way that it allows direct extraction of double-layer capacitance (C-dl) values as a function of the frequency from complex plane plots exhibiting nonideal behavior. Experimental impedance data verified by the Kramers-Kronig (K-K) transforms were presented for a mild steel/hydrochloric acid interface in the absence and presence of an organic additive. The results revealed that the modified equation works well for real systems.