Four-contact impedance spectroscopy of conductive liquid samples

Pelc, Damjan; Marion, Sanjin; Basletic, Mario
July 2011
Review of Scientific Instruments;Jul2011, Vol. 82 Issue 7, p073907
Academic Journal
We present an improved approach to the impedance spectroscopy of conductive liquid samples using four-electrode measurements. Our method enables impedance measurements of conductive liquids down to the sub-Hertz frequencies, avoiding the electrode polarization effects that usually cripple standard impedance analysers. We have successfully tested our apparatus with aqueous solutions of potassium chloride and gelatin. The first substance has shown flat spectra from ∼100 kHz down to sub-Hz range, while the results on gelatin clearly show the existence of two distinct low frequency conductive relaxations.


Related Articles

  • Note: Electrode polarization of Galinstan electrodes for liquid impedance spectroscopy. Mellor, Brett L.; Kellis, Nathan A.; Mazzeo, Brian A. // Review of Scientific Instruments;Apr2011, Vol. 82 Issue 4, p046110 

    Electrode polarization is a significant obstacle in the impedance measurements of ionic liquids. An atomically smooth electrode surface could potentially reduce unwanted impedance contributions from electrode polarization. Liquid metal electrodes were formed by adhering Galinstan to acrylic...

  • Corrosion Sensor for Monitoring the Service Condition of Chloride-Contaminated Cement Mortar. Shuang Lu; Heng-Jing Ba // Sensors (14248220);2010, Vol. 10 Issue 4, p4145 

    A corrosion sensor for monitoring the corrosion state of cover mortar was developed. The sensor was tested in cement mortar, with and without the addition of chloride to simulate the adveRse effects of chloride-contaminated environmental conditions on concrete structures. In brief, a linear...

  • Electro-optical and dielectric relaxation studies of an antiferroelectric liquid-crystal mixture (W-132A). Srivastava, A. K.; Agrawal, V. K.; Dabrowski, R.; Otón, J. M.; Dhar, R. // Journal of Applied Physics;7/1/2005, Vol. 98 Issue 1, p013543 

    Electro-optical properties and dielectric relaxation phenomenon have been investigated for antiferroelectric liquid-crystal mixture W-132A exhibiting SmA*, SmC*, and wide temperature range (∼0–48 °C) induced SmCA* phases. Spontaneous polarization, tilt angle, response time,...

  • Evaluation of impedance spectra of ionic-transport materials by a random-walk approach considering electrode and bulk response. Patil, D. S.; Shimakawa, K.; Zima, V.; Macak, J.; Wagner, T. // Journal of Applied Physics;Apr2013, Vol. 113 Issue 14, p143705 

    Analysis of impedance spectra by a random-walk approach is proposed for the study of ionic-transport materials with a silver-containing chalcogenide glass as a case example. Through a full analysis of complex impedance spectra including the electrode polarization effect, some important physical...

  • Fiber Materials AC Impedance Spectroscopy and Its Application. Xiaofeng Li; Xianggao Pan // Advanced Materials Research;2014, Issue 915-916, p549 

    This article presents a recent study on the behavior of impedance versus frequency of fiber materials. When applying a constant amplitude, it was experimentally observed that the impedance of fiber materials first dropped steeply and then retained in a stable state being followed by a rapid...

  • Electrical characteristics of biomodi?ed electrodes using nonfaradaic electrochemical impedance spectroscopy. Yusof, Yusmeeraz; Yanagimoto, Yoshiyuki; Uno, Shigeyasu; Nakazato, Kazuo // World Academy of Science, Engineering & Technology;Mar2011, Issue 51, p295 

    No abstract available.

  • Capacitance and resistance measurements of SnO2 thick-films. Ponce, Miguel Adolfo; Castro, Miriam S.; Aldao, Celso M. // Journal of Materials Science: Materials in Electronics;Jan2009, Vol. 20 Issue 1, p25 

    Impedance spectroscopy measurements on SnO2 thick films were carried out in an air atmosphere and for temperatures between 25 and 425 °C. Capacitance and resistance analyses reveal the mechanisms responsible for experimental responses. Four different contributions to the overall capacitance...

  • Establishment and analysis of the equivalent circuit model of the electrical impedance of adherent cells. JIA0 Quan; XV Shan-zhi; YANG Sheng-sheng; QIN Xiao-gang; WANG Peng // Journal of Mechanical & Electrical Engineering;Sep2014, Vol. 31 Issue 9, p1107 

    In order to establish a clear relationship between the biological electrical characteristics and biochemical characteristics, an inter-digitated gold electrode was designed and manufactured on a silica glass substrate by using micro-processing technolog. Based on this substrate, a cell...

  • Ranking sections of main gas pipelines according to corrosion damage based on field polarization measurements. Bolotov, A.; Shvein, Yu.; Arabei, A.; Marshakov, A. // Protection of Metals & Physical Chemistry of Surfaces;Dec2012, Vol. 48 Issue 7, p735 

    Free-corrosion potentials are measured and potentiodynamic and potentiostatic anodic polarization curves are recorded on an electrode made of pipe steel in soils close to different sections of the Urengoi-Surgut-Chelyabinsk main gas pipeline. The data obtained are compared to the type of...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics