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- W2016059575 abstract "Bei der Reduktion von Jodat in 0.1 N H2SO4 an einer Pt-Elektrode zeigte sich, dass Pt-Oberflächenoxide den Initialschritt der elektrochemischen Reduktion von Jodat beschleunigen. Die durch Pt-Oxide beschlenigte Reaktion besteht in der dissoziativen Chemisorption von Jodat nachIO2—OH ⇄ IO2.Chem+OH.ChemFür den im Potentialbereich ϕ=1.1−0.75 V geschwindigkeitsbestimmenden Durchtrittsprozess wurde eine Reaktionsordnung von n=0.5 ermittelt, was so gedeutet wird, dass das entstandene IO2.-Radikal schnell mit Wasser reagiert unter Bildung eines OH.-Radikals nachIO2.+H2O ⇄ IO2-+H++OH.so dass aus einem IO2−OH-Molekül zwei OH.-Radikale entstehen, die elektrochemisch reduziert werden. Das gebildete IO2− ist instabil und disproportioniert mit grosser Geschwindigkeit nach3IO2- → 2 IO3-+I-In the reduction of iodate in 0.1 N H2SO4 at a Pt electrode it is shown that the Pt surface oxide accelerates the initial step of the electrochemical reduction of iodate. The reaction accelerated by Pt oxide consists of the dissociative chemisorption of iodate according toIO2—OH ⇌ IO2.Chem+OH.ChemIn the potential region ϕ=1.1−0.75 V the rate-determining transfer process yields a reaction order of n=0.5; this was interpreted as due to the rapid reaction of the IO2. radical with water forming an OH. radical according toIO2.+H2O ⇌ IO2-+H++OH.so that from one IO2−OH molecule, two OH. radicals are produced, which are then reduced electrochemically. The IO2− formed is unstable and disporportionates with a high velocity according to3IO2- → 2 IO3-+I-" @default.
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- W2016059575 date "1922-11-01" @default.
- W2016059575 modified "2023-09-29" @default.
- W2016059575 title "Preliminary investigations on silberstein's quantum theory of photographic exposure" @default.
- W2016059575 doi "https://doi.org/10.1016/s0016-0032(22)90859-2" @default.
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