We have performed density functional theory investigations on the adsorption properties of ammonia molecule on the undoped and N-doped TiO2 anatase nanoparticles. We have geometrically optimized the constructed undoped and N-doped nanoparticles in order to fully understand the adsorption behaviors of ammonia molecule. For TiO2 anatase nanoparticles, the binding site is preferentially located on...

Transparent blue crystals of Cu[N(CN)2]2 · 2 NH3 were obtained by blending solutions of Na[N(CN)2] and Cu(NO3)2 · 2.5 H2O in aqueous ammonia and subsequent evaporation of the solvent under ambient conditions. Cu[N(CN)2]2 · 2 NH3 crystallizes in space group P1 (no. 2, Z = 2) with the cell parameters a = 746.1(4), b = 747.8(4) and c = 894.4(5) pm, and the angles α = 68.94(2), β = 75.52(1) and γ =...

Three-arcsecond angular resolution (0.03 pc at 2.3 kpc) images of the (J,K) = (1,1) and (2,2) NH3 inversion lines toward W3 Main are presented. These observations show NH3 emission from individual clumps and filaments embedded in the lower density ammonia gas, previously observed with a spatial resolution of 40′′. Toward the molecular core W3 East we detect NH3 emission with broad line profiles...

Ammonia and odor emissions from land application of dairy manure, and costs associated with manure land application methods are serious concerns for dairy owners, regulators, and the general public. Odor and ammonia samples from agricultural fields receiving liquid dairy manure applied by surface broadcast and subsurface injection were collected and analyzed. Costs associated with both of the m...

[1] Recent regulations require large-scale emission reductions of NOx and SO2 in the eastern United States. These emission changes will alter the partitioning of ammonia between the gas and particle phases. Furthermore, ammonia emissions are expected to increase in the future. How will these changes impact the contribution of ammonia to inorganic particulate matter and nitrogen deposition? We u...

Ammonia (NH3) is a key commodity chemical of vital importance for fertilizers. It is made on an industrial scale via the Haber Bosch process, which requires significant infrastructure to be in place such that ammonia is generally made in large, centralized facilities. If ammonia could be produced under less demanding conditions, then there would be the potential for smaller devices to be used t...

Biogas production from nitrogen-rich feedstock results in release of ammonia (NH3), causing inhibition of the microbial process. The reported threshold ammonia value for stable biogas production varies greatly between studies, probably because of differences in operating conditions. Moreover, it is often difficult to separate the effect of ammonia inhibition from that of organic loading rate (O...

The goal of this 11-month study was to evaluate the characteristics of ammonia (NH3) emission during a test of 1) soybean oil sprinkling (SOS), 2) misting of essential oils, and 3) misting of essential oils and water. Measurements were recorded every 60 s from August 2002 to July 2003 at two tunnel-ventilated swine finishing barns that were flushed at least 16 times daily with lagoon effluent. ...

We present a theoretical study of elastic and rotationally inelastic collisions of NH3 and ND3 with rare gas atoms (He, Ne, Ar, Kr, Xe) at low energy. Quantum close-coupling calculations have been performed for energies between 0.001 and 300 cm(-1). We focus on collisions in which NH3 is initially in the upper state of the inversion doublet with j = 1, k = 1, which is the most relevant in an ex...

Alfalfa was harvested as second-cutting regrowth herbage, ensiled either at low DM (direct-cut) or high DM (wilted), untreated or treated with .82 or .66% anhydrous NH3 (percentage of DM), respectively, and offered to four Holstein heifers. Silages low in DM had more gross energy and more NDF in DM than silages high in DM. Ammonia treatment increased total, soluble, rumen-insoluble, and NH3 N f...