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in situ FTIR Studies of Alumina in a Hydrogen Environment: a Study of Hydrogen Chemistry within Ceramics.

EMSL Project ID


Ceramic coatings have been used for some time to reduce the permeation of hydrogen through metals in nuclear reactor facilities. Alumina has primarily been used as the coating and many permeation and diffusion studies have been reported with permeation reduction factors. The essential chemistry of hydrogen (in all forms) has not been reported for ceramics, but will be necessary to better design hydrogen barriers and hydrogen storage devices for a variety of applications. Goodman et al. showed that the mechanism of formation of adsorbed species on Al2O3 could be distinguished via FTIR investigation. Further, in situ experiments will allow reaction kinetics to be studied as hydroxide is formed and transported through the ceramic. This proposed work is part of an internal LDRD for the development of low cost hydrogen barriers and is part of an effort to create a new longterm program at PNNL.

Project Details

Project type
Exploratory Research
Start Date
End Date


Principal Investigator

Ashley Stowe
Pacific Northwest National Laboratory

Team Members

Janos Szanyi
Pacific Northwest National Laboratory

Charles Henager
Pacific Northwest National Laboratory