The azides, like the halogen compounds, readily react with other substances by displacement of the so-called azide group and yield many kinds of compounds. Nitrogen forms many thousands of organic compounds. Most of the known varieties may be regarded as derived from ammonia, hydrogen cyanide, ...
ammonia is synthesized from atmospheric nitrogen and hydrogen by the Haber-Bosch method, a process that Fritz Haber developed about 1909 and which soon after was adapted for large-scale production by Carl Bosch. Commercially produced ammonia is used to make a wide variety of nitrogen compounds, in...
Catalytic synthesis of ammonia from nitrogen and hydrogen - using heat exchanger tubes in reactor to increase yieldThe yield is increased during the catalytic synthesis of NH3 in high pressure reactors, using heat exchange inside the reactor with the incoming synthesis gas mixt. of N2 and H2, ...
32,33. Briefly, enough nitrate sample to yield 50 nmol of N2O was injected into concentrated and helium-purged aliquots ofPseudomonas chlororaphissubsp.aureofaciens(ATCC#13,985), which converts all nitrate that is supplied to N2O. Measurements were corrected using blanks and the international nitra...
the research that evaluates nutritional status and wheat yield, in terms of nitrogen rates in association with inoculation with A. brasilense is important. We found that increment of N rates in association with A. brasilense inoculation increases the wheat yield up to 139 kg ha−1 N, whereas...
ammonia fixation at ambient conditions. The catalyst can achieve a high ammonia yield of 26.57 μg h–1 mg–1cat.and a fairly high Faradaic efficiency of 15.95% at –0.75 V versus reversible hydrogen electrode, placing it among the most active aqueous-based nitrogen reduction ...
18 In this current system, the total calculated yield of H-derived ammonia and H2 also reaches the optimal value at 270°C. However, it is apparent that the hydrogen evolution reaction (HER) becomes more dominant than ammonia production when the temperature is greater than 250°C, offering ...
(kg Nmin ha–1a–1) for each soil layer and community was calculated by adding the net yield values from each incubation period. Because the incubation periods were different durations, the net N mineralization yield for each period was transformed into daily yields. The net N mineralization ...
Rising atmospheric CO2 (ca) has been shown to increase forest carbon uptake. Yet, whether the ca-fertilization effect on forests is modulated by changes in sulphur (Sdep) and nitrogen (Ndep) deposition and how Ndep affects ecosystem N availability remain
Natural wetlands are mostly nitrogen-limited ecosystems, while reclamation stimulates the loss of nitrogen (N) in soils by shifting the N regime. To invest