AVS 54th International Symposium | |
Surface Science | Tuesday Sessions |
Session SS-TuP |
Session: | Surface Science Poster Session |
Presenter: | J.Y. Park, Pukyong National University, S. Korea |
Authors: | Y.C. Kang, Pukyong National University, S. Korea J.Y. Park, Pukyong National University, S. Korea |
Correspondent: | Click to Email |
The surface chemistry of deuterated ethanol on the zircaloy-4 surfaces was investigated by means of temperature programmed desorption(TPD) and Auger electron spectroscopy (AES) techinques. The cleanliness of the zircaloy-4 was checked by AES and the purity of deuterated ethanol was checked by quadruple mass spectrometer (QMS) after several cycles of freeze-pump-thaw method. Depending on the adsorption temperatue, water evolution was changed as peak maximum position and absolute peak intensity. Even highly pure deuterated ethanol was used, hydrogen exchange was observed in this experiment. As the amount of exposed deuterated ethanol increased, the oxidation state of zirconium was changed from metallic to zirconia form. During linear heating of the deuterated ethanol dosed zircaloy-4 surfaces, hydrogen evolution was observed. This implys that this system has potential of production of hydrogen.