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|Title:||Room-temperature hydrogen uptake by TiO 2 nanotubes|
|Citation:||Lim, S.H., Luo, J., Zhong, Z., Ji, W., Lin, J. (2005-06-13). Room-temperature hydrogen uptake by TiO 2 nanotubes. Inorganic Chemistry 44 (12) : 4124-4126. ScholarBank@NUS Repository. https://doi.org/10.1021/ic0501723|
|Abstract:||TiO 2 nanotubes can reproducibly store up to∼2 wt% H 2 at room temperature and 6 MPa. However, only about 75% of this stored hydrogen can be released when the hydrogen pressure is lowered to ambient conditions, suggesting that both physisorption and chemisorption are responsible for the hydrogen uptake. FTIR spectroscopy, temperature-programmed desorption (TPD), and pressure-composition (P-C) isotherms suggest that 75% of the H 2 is physisorbed and can be reversibly released upon pressure reduction. Approximately 13% is weakly chemisorbed and can be released at 70°C as H 2, and ∼ 12% is bonded to oxide ions and released only at temperatures above 120°C as H 2O. © 2005 American Chemical Society.|
|Source Title:||Inorganic Chemistry|
|Appears in Collections:||Staff Publications|
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