Results 11 to 20 of about 105,075 (266)

Production and Excretion of Polyamines To Tolerate High Ammonia, a Case Study on Soil Ammonia-Oxidizing Archaeon “Candidatus Nitrosocosmicus agrestis”

open access: yesmSystems, 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

Engineering of electrocatalyst/electrolyte interface for ambient ammonia synthesis

open access: yesSusMat, 2021
Ammonia is not only an important platform chemical for industrial and agricultural use but is also a novel energy‐carrying molecule. The electrochemical reduction method for ambient ammonia synthesis is emerging as a promising strategy for the ...
Lei Du   +5 more
doaj   +1 more source

Achieving volatile potassium promoted ammonia synthesis via mechanochemistry

open access: yesNature 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

A Conceptual Approach for the Design of New Catalysts for Ammonia Synthesis: A Metal—Support Interactions Review

open access: yesNanomaterials, 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

open access: yesSmall 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

open access: yesApplications 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

Synthesis of polystannanes in liquid ammonia

open access: yesChimia, 2011
Chimia, 65 (11)
Trummer, Markus   +3 more
openaire   +5 more sources

Mg-gallate metal-organic framework-based sprayable hydrogel for continuously regulating oxidative stress microenvironment and promoting neurovascular network reconstruction in diabetic wounds

open access: yesBioactive Materials
Chronic diabetic wounds are the most common complication for diabetic patients. Due to high oxidative stress levels affecting the entire healing process, treating diabetic wounds remains a challenge.
Chenxi Lian   +7 more
doaj   +1 more source

Green and large‐scale production of ammonia: Laser‐driven pyrolysis of nitrogen‐enriched biomass

open access: yesSusMat, 2023
As a vital chemical, ammonia (NH3) plays an irreplaceable role in many fields such as chemical synthesis and energy storage. Green renewable biomass can be converted into biofuels, but its nitrogen resources are underused throughout.
Yue Li   +9 more
doaj   +1 more source

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