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Details for article 4 of 6 found articles
| Title: |
Spatiotemporal Oscillations in Peroxo-Molybdate Complexes in Acidic Solutions: 1. Impedance Measurements of H2Mo2O3(O-O)4(H2O) 2 |
| Author: |
C.V.Krishnan, M. Garnett , B. Chu |
| Appeared in: |
International journal of electrochemical science |
| Paging: | Volume 2 (2007) nr. 6 pages 444-461 |
| Year: |
2007 |
| Contents: |
Cyclic voltammetry data in the region 0 to - 0.4V using a static mercury drop electrode indicate a redox active peroxo-molybdate species in solutions obtained by dissolving the metal in 30% v/v H2O2. There was no observable colored species formation in this potential range. Admittance data at different frequencies suggest orientation effects of water molecules at or near the double layer. The admittance maximum near the double layer changeover region exhibits a small anodic shift on lowering the frequencies. Impedance measurements in aqueous H2Mo2O3(O-O)4(H2O)2 suggest spatiotemporal oscillations and the impedance loci observed in four quadrants near 0.1V is a characteristic of the Hopf bifurcation. This unique impedance is exhibited only in a narrow band potential. With increase in surface area the spatiotemporal periodicity becomes more efficient. The negative differential resistance observed, indicative of quantum mechanical resonant tunneling, points to the probable unique role of peroxide and molybdenum enzymes in global coupling to facilitate information transfer in biochemical processes. |
| Publisher: |
Electrochemical Science Group |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 4 of 6 found articles
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