Herein, an electrochemical nitrogen oxidation reaction (NOR) approach is developed to produce nitrate catalyzed by ZnFexCo2﹛O4 spinel oxides in an alkaline electrolyte. As revealed by theoretical and experimental results, Fe is found to facilitate the formation of the first N㎡ bond on the *N ...
Nitrogen also occurs in mineral deposits of nitre or saltpetre (potassiumnitrate, KNO3) andChile saltpetre(sodium nitrate, NaNO3), but these deposits exist in quantities that are wholly inadequate for human needs. Another material rich in nitrogen isguano, found in bat caves and in dry places fr...
Chemical stateBinding energy Mg1s Metal nitrides ~397 eV NSi3 (Si3N4) 398.0 eV NSi2O 399.9 eV NSiO2 402.5 eV C-NH2 ~400 eV Nitrate >405 eVExperimental information The N1s region may be overlapped by peaks from tantalum, molybdenum, or cadmium. In the case of molybdenum, collec...
Thus, it reduces per manganate, MnO4¯, to Mn2+ ion, decolorizing its solution. In this reaction, it is oxidized to nitrate ion: MnO4¯ + 5NO2 + H2O → Mn2+ +2H+ + 5NO3¯ Reaction with fluorine forms nitryl fluoride, NO2F: ...
A subclass of ROS is reactive nitrogen species (RNS) such as nitric oxide and peroxynitrate. These molecules, which are prominent in different areas of the male reproductive system, are responsible for contributing to nitrosative stress. RNS have multiple physiologic functions, which include ...
K. Heterogeneous oxidation of SO2 in sulfate production during nitrate photolysis at 300 nm: effect of pH, relative humidity, irradiation intensity, and the presence of organic compounds. Environ. Sci. Technol. 53, 8757–8766 (2019). Article CAS PubMed Google Scholar Wang, X. et al. ...
(b) Correlations between microvascular blood flow in small and medium-sized vessels and plasma nitrite as well as cyclic guanosine 3’, 5’-monophosphate (cGMP; insets) concentrations. (c) Subgroup analyses for nitrate, cGMP and erythropoietin (EPO) levels in lab staff (n = 10) and ...
The pycnocline recipe, (ΩS + MS-in)/(ΩS + MS-in + ΩD + MD-in), is the relative importance of the Southern Ocean surface versus the deep ocean in the gross nutrient (nitrate) supply to the pycnocline. The red line is the observed weighted average, while the black line is the ...
The nitrogen (N)-use efficiency of agricultural plants is notoriously poor. Globally, about 50% of the N fertilizer applied to cropping systems is not absorbed by plants, but lost to the environment as ammonia (NH3), nitrate (NO3−), and nitrous oxide
[20]. It suggests that NXR catalyzes both nitrite oxidation and nitrate reduction. Moreover, it is arranged as tubules in the cells where a heme-containing subunit, NXR-T is responsible for inducing the tubule formation. These results are likely to provide the impetus for detailed definitions ...