Results 11 to 20 of about 103,149 (267)
Synthesis of polystannanes in liquid ammonia
Chimia, 2011 Chimia, 65 (11)
Trummer, Markus +3 more
openaire +5 more sources
Ammonia Synthesis at Low Pressure [PDF]
Journal of Visualized Experiments, 2017 Ammonia can be synthesized at low pressure by the use of an ammonia selective absorbent. The process can be driven with wind energy, available locally in areas requiring ammonia for synthetic fertilizer. Such wind energy is often called "stranded," because it is only available far from population centers where it can be directly used.
Edward, Cussler +3 more
openaire +2 more sources
Rhenium: an ammonia synthesis catalyst [PDF]
The Journal of Physical Chemistry, 1982 Polycrystalline rhenium has been studied as a catalyst for the synthesis of ammonia from its elements. It appears to have an initial activity which is nearly an order of magnitude greater than that of the most active crystal plane of iron (Fe(111)) at the reactant pressures (20 atm) and temperatures (603 to 713 K) studied.
Spencer, N.D., Somorjai, G.A.
openaire +2 more sources
mSystems, 2021 Ammonia tolerance is a universal characteristic among the ammonia-oxidizing bacteria (AOB); in contrast, the known species of ammonia-oxidizing archaea (AOA) have been regarded as ammonia sensitive, until the identification of the genus “Candidatus ...
Liangting Liu +4 more
doaj +1 more source
Achieving volatile potassium promoted ammonia synthesis via mechanochemistry
Nature Communications, 2023 Potassium oxide (K2O) is used as a promotor in industrial ammonia synthesis, although metallic potassium (K) is better in theory. The reason K2O is used is because metallic K, which volatilizes around 400 °C, separates from the catalyst in the harsh ...
Jong-Hoon Kim +11 more
doaj +1 more source
Materials for electrochemical ammonia synthesis [PDF]
Dalton Transactions, 2019 Direct electrochemical synthesis of ammonia is proposed as a means of reducing the carbon footprint of the fertiliser industry, as well as providing new opportunities for carbon-free liquid energy storage.
McPherson, IJ +3 more
openaire +3 more sources
Nanomaterials, 2023 The growing interest in green ammonia production has spurred the development of new catalysts with the potential to carry out the Haber–Bosch process under mild pressure and temperature conditions.
Javier Arroyo-Caire +3 more
doaj +1 more source
Electrocatalytic C–N Coupling for Urea Synthesis
Small Science, 2021 The industrial urea synthesis consists of two consecutive processes, nitrogen + hydrogen → ammonia followed by ammonia + carbon dioxide → urea. The electrocatalytic coupling of carbon source (carbon dioxide) and nitrogen source (nitrogen, nitrite ...
Chen Chen, Nihan He, Shuangyin Wang
doaj +1 more source
High-throughput screening of suitable nitrogen carriers for chemical looping ammonia synthesis
Applications in Energy and Combustion Science, 2023 Chemical looping ammonia synthesis is a promising pathway to synthesise ammonia with lower energy and economic costs than the current Haber-Bosch process, for example, by lowering the operating temperature and/or pressure, whilst maintaining comparable ...
Reinaldo Juan Lee Pereira +2 more
doaj +1 more source