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## Ž . Ž . Adsorptions of methanol and hydrogen molecules on 100 and 001 SnO surfaces have been investigated by using molecular orbital 2 Ž . MO calculation, and compared with experimental data of gas sensing. From MO calculation, adsorption of methanol molecule on SnO 2 surface tends to occur compared with H molecule adsorption, in contrast to experimental data. Moreover, methanol can react with 2 adsorbed O molecule on SnO surface. So, it is considered that the sensitivity of SnO gas sensor is induced by adsorption of hydrogen 2 2 2 atom or CH species rather than that of hydrogen or methanol molecule.

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Author

Takeshi Kanashima; Akira Fujimoto; Masanori Okuyama

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0925-4005)

Published

2000

Language

EN

Field

Engineering (Physical Sciences)