Amorphization and Defect Engineering in Constructing Ternary Composite Ag/PW10V2/am-TiO2-x for Enhanced Photocatalytic Nitrogen Fixation

2022 ◽  
Author(s):  
Caiting Feng ◽  
Panfeng Wu ◽  
Qinlong Li ◽  
Jiquan Liu ◽  
Danjun Wang ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Molecular Nitrogen ◽  
Catalytic Efficiency ◽  
Defect Engineering ◽  
Ternary Composite

Photo-driven nitrogen fixation involves the activation and hydrogenation processes of molecular nitrogen at the surface of photocatalyst in producing ammonia. Herein, significantly enhancement of catalytic efficiency is achieved via constructing...

On the Fixation of Atmospheric Nitrogen by Phoma Radicis Callunae, including a New Method for Investigating Nitrogenfixation in Micro-Organisms

1928 ◽  
Vol 6 (2) ◽  
pp. 167-189
Author(s):  
W. NEILSON JONES ◽  
M. LLEWELLYN SMITH
Keyword(s):  
Nitrogen Fixation ◽  
Nitrogen Starvation ◽  
Molecular Nitrogen ◽  
Mycorrhizal Fungus ◽  
Growth Period ◽  
Calluna Vulgaris ◽  
Atmospheric Nitrogen ◽  
Free Medium ◽  
New Apparatus ◽  
Micro Organisms

(1) Evidence from chemical analyses of seeds of Calluna mdgaris and of seedlings grown on a nitrogen-free medium confirms the view that this plant can obtain nitrogenous supplies from the air, probably in the form of molecular nitrogen, in sufficient amount to prevent the advent of any symptoms of nitrogen starvation. (2) A new apparatus for the investigation of nitrogen-fixation by micro-organisms is described. (3) Using the above apparatus, experiments on the mycorrhizal fungus of Calluna vulgaris are described in which this organism was grown in pure culture on a nitrogen-free medium with and without a supply of molecular nitrogen. The evidence obtained indicates that the amount of glucose used by the fungus during growth, and the amount of nitrogen contained in the culture at the end of the growth period are greater under the former condition. It is concluded that the fungus in question can utilise the molecular nitrogen of the air in some degree under the conditions of the experiments, although these were not the most favourable possible for nitrogen-fixation. It is considered that the results obtained justify an extension of these experiments using a strain of the fungus freshly extracted from the Calluna plant.

18 Molecular Nitrogen Fixation with Hydroperoxyl Radicals: A Theoretical and Quantum Chemical Study

2016 ◽  
pp. 319-340
Author(s):  
A. A. Ijagbuji ◽  
E. V. Poshtarëva ◽  
A. N. Reisser ◽  
V. V. Schwarzkopf ◽  
T. C. Philips ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Quantum Chemical ◽  
Molecular Nitrogen ◽  
Quantum Chemical Study ◽  
Chemical Study

para-Hydroxybenzoate supported nitrogen fixation in Azotobacter vinelandii strain OP (13705)

1988 ◽  
Vol 34 (11) ◽  
pp. 1271-1275 ◽  
Author(s):  
Jay B. Peterson ◽  
Lynn S. Peterson
Keyword(s):  
Nitrogen Fixation ◽  
Cytoplasmic Membrane ◽  
Azotobacter Vinelandii ◽  
Nitrogenase Activity ◽  
Molecular Nitrogen ◽  
Carbon Sources ◽  
Gel Filtration ◽  
Cell Extracts ◽  
Reduction Assay ◽  
Membrane Bound

Azotobacter vinelandii cells grew with molecular nitrogen and p-hydroxybenzoate as the sole added nitrogen and carbon sources. Nitrogenase activity in p-hydroxybenzoate grown cells was demonstrated with the acetylene reduction assay. Cell extracts contained the enzymes p-hydroxybenzoate hydroxylase (EC 1.14.13.2) and protocatechuate 3,4-dioxygenase (EC 1.13.1.3); oxygenases associated with p-hydroxybenzoate metabolism. These enzymes separated from respiration particles with gel filtration chromatography, indicating that they are soluble and not membrane bound. This evidence indicates that oxygen enters to the inner face of the cytoplasmic membrane during nitrogen fixation.

MO study of molecular nitrogen fixation

1985 ◽  
Vol 31 (3) ◽  
pp. 289-300 ◽  
Author(s):  
P. Pelikán ◽  
R. Boča
Keyword(s):  
Nitrogen Fixation ◽  
Molecular Nitrogen

MO study of molecular nitrogen fixation I. Model systems: [N2 + H]., [N2 + H]+, [N2 + H]−

1979 ◽  
Vol 5 (5) ◽  
pp. 349-362 ◽  
Author(s):  
P. Pelikán ◽  
M. Haring ◽  
M. Čeppan ◽  
M. Breza ◽  
M. Liška ◽  
...  
Keyword(s):  
Nitrogen Fixation ◽  
Molecular Nitrogen ◽  
Model Systems

Defect Engineering in Photocatalytic Nitrogen Fixation

ACS Catalysis ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 9739-9750 ◽  
Author(s):  
Run Shi ◽  
Yunxuan Zhao ◽  
Geoffrey I. N. Waterhouse ◽  
Shuai Zhang ◽  
Tierui Zhang
Keyword(s):  
Nitrogen Fixation ◽  
Defect Engineering
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