Ammonia may be a very convenient probe molecule to study the acid properties of zeolites, the pores of which are so narrow that they are inaccessible to pyridine. Ammonia molecules interact with acidic hydroxyls forming ammonium ions, however upon the neutralization of acidic hydroxyls next ...
46 predicting plastic and superionic helium-ammonia compounds at extreme condition. They predicted three stable stoichiometries and eight new stable phases of He–NH3 compounds under pressures up to 500 GPa and found that the predicted He–NH3 compounds exhibit superionic behavior at high pressure ...
When ammonia molecules were added to the reagent gas, the silicon dioxide–ammonia complex was produced spontaneously upon annealing. Broadband UV–visible photolysis decomposed the SiO 2–NH 3 complex and produced the H 2NSiOOH molecule. The potential energy surface along the reaction path leading ...
The clusters are firstly excited to the intermediate state corresponding to the à 1 A 2 state of an ammonia molecule. The lifetime of the intermediate species is found to be 4 + and (NH3)2 +, and longer than 1 μs for (NH3) n NH4 + (1≤n≤6). This result implies that ...
Electron impact dissociation of the NH3 molecule: Absolute and relative cross sections for NH*(c 1Π,A 3Π), NH+*(C 2Σ+, B 2Δ,A 2Σ-), and NH[ATOTHER]@B|... The emission spectrum between 2700 and 5000 Å following single electron impact on ammonia has been investigated. Emiss...
PURPOSE: To ensure non-excitation time of active species and improve the fluidity of reaction intermediates by intermittently applying AC or DC and intermittently generating plasma. ;CONSTITUTION: In an H<Sub>2</Sub>O-TEOS plasma CVD method., ammonia is added as basic catalyst capable of forming...
an interlayer boundary face and to obtain good fine resist patterns by converting only the region irradiated with UV light to a photoresist to a far UV light absorptive layer which does not allow transmission of the far UV light by a thermochemical reaction with, for example, gaseous ammonia. ...
nucleation involves sulfuric acid (H2SO4) over almost all the troposphere8. However, binary nucleation of H2SO4–H2O is slow and, so, ternary or multicomponent nucleation with extra vapours such as ammonia (NH3)9and organics10,11is necessary to account for observed new-particle-formation rates...
a steady amount of active Ni 4 C andNi–CH 2 are detectable on the Ni catalyst during steady reaction. The surface of Fecatalyst in ammonia synthesis reaction is similar. The dissociation of N 2 is therate-determining step in the ammonia synthesis reaction. That is, the reaction rate isco...
The interaction between nitrogen monoxide (NO) and organic peroxy radicals (RO2) greatly impacts the formation of highly oxygenated organic molecules (HOM), the key precursors of secondary organic aerosols. It has been thought that HOM production can be