Periodic current oscillations of zinc in nitric acid solutions

Crisan, Florin; Sallo, Ervin

doi:10.2298/jsc0802221c

Cited by 5 publications

(4 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Many other electrochemical oscillators are mentioned in the literature. [23,24] A famous one is the so-called "beating mercury heart". [25] A drop of mercury is placed in a watch glass and covered with a dilute aqueous solution of a strong acid (e.g.…”

Section: Isothermal Oscillatorsmentioning

confidence: 99%

Strobes: Pyrotechnic Compositions That Show a Curious Oscillatory Combustion

et al. 2012

View full text Add to dashboard Cite

Strobes are pyrotechnic compositions which show an oscillatory combustion; a dark phase and a flash phase alternate periodically. The strobe effect has applications in various fields, most notably in the fireworks industry and in the military area. All strobe compositions mentioned in the literature were discovered by trial and error methods and the mechanisms involved remain unclear. Many oscillatory systems such as Belousov-Zhabotinsky reactions, cool flames, self-propagating high-temperature synthesis have been observed and theories developed to elucidate their unstable behavior based on chemical interactions or based on physical processes. These systems are compared to experimental observations made on strobe mixtures.

show abstract

Section: Isothermal Oscillatorsmentioning

confidence: 99%

Strobes: Pyrotechnic Compositions That Show a Curious Oscillatory Combustion

et al. 2012

View full text Add to dashboard Cite

show abstract

“…Zinc anode behavior depends upon certain conditions like electrolyte composition [18], nitrate ions addition [17], metallic ions presence and others. If we accept that the potential (or current) oscillations are the results of the coupling of many active zones on the electrode surface, zones which behave like independent oscillators, then, the more the oscillators, the more the complex oscillations.…”

Section: Discussionmentioning

confidence: 99%

“…The behavior of zinc electrodes has been studied in alkaline solutions as cathode [14,15], but in the acidic media their *Corresponding author. E-mail: florincrisan2000@yahoo.com behavior is almost unknown [16,17].…”

Section: Introductionmentioning

confidence: 99%

Influence of metal ions on oscillatory behavior of zinc anode in nitric acid-potassium dichromate media

Crisan¹,

Sallo

2010

JICS

View full text Add to dashboard Cite

A zinc anode in acidic media is a new oscillatory electrochemical system which manifests interesting behaviors, from steady states to simple oscillations and chaos. This paper presents an experimental study of the influence of metal ions on the shape, amplitude and duration of the cell potential oscillations, and gives a qualitative explanation of the system's behavior. A small quantity of Cu 2+ , Zn 2+ or Fe 3+ ions added to the system change dramatically the potential oscillations from chaotic behavior to simple oscillations. The method may be used for chaos attenuation.

show abstract

“…Viele andere elektrochemische Oszillatoren werden in der Literatur erwähnt. [23,24] Ein besonders berühmter ist das "schlagende Quecksilberherz": [25] Ein Tropfen Quecksilber wird in einem Uhrglas platziert und mit einer verdünnten wässrigen Lçsung einer starken Säure bedeckt (z. B. HNO 3 , H 2 SO 4 , HCl), die einige Kristalle von K 2 Cr 2 O 7 , Na 2 S 2 O 8 oder KMnO 4 enthält.…”

Section: Isotherme Oszillatorenunclassified

Stroboskopgemische: pyrotechnische Mischungen mit oszillierendem Verbrennungsverhalten

Corbel

Lingen²,

Zevenbergen³

et al. 2012

Angewandte Chemie

View full text Add to dashboard Cite

Stroboskopgemische sind pyrotechnische Zusammensetzungen, die ein oszillierendes Verbrennungsverhalten zeigen; eine Dunkel‐ und eine Leuchtphase alternieren periodisch. Der Stroboskopeffekt wird in verschiedenen Bereichen, aber hauptsächlich in der Feuerwerksindustrie und im militärischen Bereich angewendet. Alle Stroboskopgemische, die in der Literatur beschrieben werden, wurden durch systematisches Ausprobieren entdeckt und die zugrundeliegenden Mechanismen bleiben ungeklärt. Viele oszillierende Systeme wurden beobachtet, und es wurden Theorien entwickelt, die auf chemischen Prozessen oder physikalischen Prozessen beruhen, um ihr instabiles Verhalten aufzuklären. Diese Systeme werden mit experimentellen Beobachtungen an Stroboskopgemischen verglichen.

show abstract

Periodic current oscillations of zinc in nitric acid solutions

Cited by 5 publications

References 12 publications

Strobes: Pyrotechnic Compositions That Show a Curious Oscillatory Combustion

Strobes: Pyrotechnic Compositions That Show a Curious Oscillatory Combustion

Influence of metal ions on oscillatory behavior of zinc anode in nitric acid-potassium dichromate media

Stroboskopgemische: pyrotechnische Mischungen mit oszillierendem Verbrennungsverhalten

Contact Info

Product

Resources

About