Refine your search:     
Report No.
 - 
Search Results: Records 1-1 displayed on this page of 1
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Effect of Al$$_{2}$$O$$_{3}$$ nanoparticles on radiolytic H$$_{2}$$O$$_{2}$$ production in water

Roth, O.*; Hiroki, Akihiro; LaVerne, J. A.*

Journal of Physical Chemistry C, 115(16), p.8144 - 8149, 2011/04

 Times Cited Count:14 Percentile:42.38(Chemistry, Physical)

Hydrogen peroxide, H$$_{2}$$O$$_{2}$$, is the major stable oxidizing species produced in the radiolysis of water and understanding the mechanisms involved in its production is important both from a fundamental science perspective and for engineering purposes, in particular within the nuclear power industry. In this work, the yields of H$$_{2}$$O$$_{2}$$ were determined in aqueous slurries in the pH range of 1-13 with various amounts of added Al$$_{2}$$O$$_{3}$$ nanoparticles. The addition of Al$$_{2}$$O$$_{3}$$ generally decreased H$$_{2}$$O$$_{2}$$ yields at all pH values within this range in the $$gamma$$ radiolysis of both deaerated and aerated slurries, except at very high pH. Very little effect of pH was observed in the $$gamma$$ radiolysis of deaerated systems in the pH range of 3-8, whereas a large increase in H$$_{2}$$O$$_{2}$$ yields was observed in aerated Al$$_{2}$$O$$_{3}$$ slurries at the extreme pH values. Scavenger capacity studies using methanol as an OH radical scavenger show that the decrease in H$$_{2}$$O$$_{2}$$ yields with added Al$$_{2}$$O$$_{3}$$ occurs at relatively long time scales and is probably due to reaction of the solid nanoparticles with OH radicals.

1 (Records 1-1 displayed on this page)
  • 1