Au(III) ions seem slowly reduced in the presence of silver nanoparticles in a solution containing PVA and water as observed by the color change and visible spectrum. In the absence of silver, no reduction occurs. Thus, can metal silver transfer electrons to gold and undergo oxidation? Thanks.
Matteo Ardini
the solution contains PVA and AgNPs are capped with citrate. gold is added directly in the solution as Au(III).
0 votes
0 thanks
Fulvio Saccoccia
The standard redox couple Au3+ +3e --> Au is +1.68 V whereas Ag+ + e --> Ag is 0.8V. So in principle Ag (solid) should reduce Au (solution); by applying Nernst equation you can calculate derived potentials for the two couples under different temperature conditions; as far as I see, pH does not matter. Does it make sanse for yoy?
Ciao Matteo
0 votes
0 thanks
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials Chemistry
More Matteo Ardini's questions See All
Similar questions and discussions