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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국진공학회(ASCT) Journal of Korean Vacuum Science & Technology Journal of Korean Vacuum Science & Technology Vol.6 No.1
- 발행연도
- 2002.6
- 수록면
- 30 - 35 (6page)
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초록· 키워드
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We show that a combined technique of Cs^+ reactive ion scattering (Cs^+ RIS) and low-energy secondary ion mass spectrometry (LESIMS) provides a powerful means for probing molecular films and their surface reactions. Simple molecules, including HCI, NH₃, D₂O, and their mixtures, were deposited into a thin film of several monolayer thickness on Ru(001) at low temperature in vacuum, and the surface was characterized by Cs^+ RIS and LESIMS. On pure films, D₂O, HCI, and NH₃ existed in the corresponding molecular states. When HCI and NH₃ were co-deposited, ammonium ion(NH₄^+) was readily formed by proton transfer from HCI to NH₃. In the presence of water molecules, HCI ionized first to hydronium ion(H₃O^+) which subsequently transferred proton to NH₃ to form NH₄^+. The proton transfer, however, did not occur to a completion on ice, in contrast to the complete reaction in aqueous solutions.
목차
Abstract
1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusions
Acknowledgment
References
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UCI(KEPA) : I410-ECN-0101-2019-420-001259251