Pregled bibliografske jedinice broj: 793
New technique for the measurement of reaction constants of photochemically produced NaH
New technique for the measurement of reaction constants of photochemically produced NaH // Zeitschrift für Physik. D, Atoms, molecules and clusters, 41 (1997), 1; 35-41 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 793 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
New technique for the measurement of reaction constants of photochemically produced NaH
Autori
Dillmann, M.T. ; Motzkus, M. ; Pichler, Goran ; Kompa, Karl Ludwig ; Hering, P.
Izvornik
Zeitschrift für Physik. D, Atoms, molecules and clusters (0178-7683) 41
(1997), 1;
35-41
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
binary diffusion constant ; photochemicaly produced NaH ; second-order rate
Sažetak
The diffusion of NaH molecules in H2 gas and its reactive loss mechanism are described. The temporal behaviour of photochemically produced NaH in the reactive Na(3p)-H2(v"=2, 3) collision system was observed by means of resonance-enhanced coherent anti-Stokes Raman scattering (RECARS). A simple diffusion model applies well in the lower-pressure region (10 mbar). The binary diffusion constant for NaH molecules in H2, D0=0.7 cm2 /sec at 1 atm and 273 K, was determined. At higher pressures (up to 900 mbar), where the influence of diffusion decreases, an unexpectedly rapid decay of the NaH signal is observed. From this time behaviour we identify a new NaH loss mechanism described by a second-order rate equation in NaH.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
