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Recent Progress in Asymmetric Ion‐Pairing Catalysis with Ammonium Salts
Chemistry - A European Journal, 2019Quaternary ammonium salts play an important role in asymmetric catalysis. In this Minireview, how asymmetric ion-pairing catalysis with ammonium ions has been utilized in organic synthesis is explained, particularly in the design of novel catalytic ...
Jianwei Sun, Yi-tao Long
exaly +2 more sources
Rocking-Chair Ammonium-Ion Battery: A Highly Reversible Aqueous Energy Storage System.
Angewandte Chemie, 2017Aqueous rechargeable batteries are promising solutions for large-scale energy storage. Such batteries have the merit of low cost, innate safety, and environmental friendliness. To date, most known aqueous ion batteries employ metal cation charge carriers.
Xianyong Wu +5 more
semanticscholar +1 more source
The Journal of Physical Chemistry C, 2019
Ammonium perchlorate (NH4ClO4) and ammonium dihydrogen phosphate (NH4H2PO4) are investigated through laser ablation/matrix-assisted laser desorption ionization processes, anion photoelectron spectroscopy (PES), and density functional theory calculations. No parent anionic species are observed in the mass spectra of these two energetic species. Instead,
Zhen Zeng, Elliot R. Bernstein
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Ammonium perchlorate (NH4ClO4) and ammonium dihydrogen phosphate (NH4H2PO4) are investigated through laser ablation/matrix-assisted laser desorption ionization processes, anion photoelectron spectroscopy (PES), and density functional theory calculations. No parent anionic species are observed in the mass spectra of these two energetic species. Instead,
Zhen Zeng, Elliot R. Bernstein
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Direct Synthesis of Pure Ammonium Molybdates from Ammonium Tetramolybdate and Ammonium bicarbonate
ACS Sustainable Chemistry & Engineering, 2020Ammonium molybdate production is a complex process with serious environmental pollution. The objective of this work is to develop a sustainable one-step technology to directly produce ammonium moly...
Liqun Yang +5 more
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Evidence of ammonium salts in comet 67P as explanation for the nitrogen depletion in cometary comae
Nature Astronomy, 2019Cometary comae are generally depleted in nitrogen. The main carriers for volatile nitrogen in comets are NH 3 and HCN. It is known that ammonia readily combines with many acids, such as HCN, HNCO and HCOOH, encountered in the interstellar medium as well ...
K. Altwegg +16 more
semanticscholar +1 more source
Scattering of Cold Neutrons in Ammonium Carbonate, Ammonium Citrate, and Ammonium Acetate
The Journal of Chemical Physics, 1967Neutron-energy-gain spectra have been measured in (NH4)2CO3, (NH4)2HC6H5O7, and NH4C2H3O2 at 20°C using the Brookhaven slow-chopper facility. Each spectrum exhibits two peaks that are characteristic of optical modes. The spectra of ammonium carbonate and ammonium citrate are similar to those of the body-centered-cubic lattice phase of the ammonium ...
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Aging Induced Changes in Biochar's Functionality and Adsorption Behavior for Phosphate and Ammonium.
Environmental Science and Technology, 2017Biochar, a form of pyrogenic carbon, can contribute to agricultural and environmental sustainability by increasing soil reactivity. In soils, biochar could change its role over time through alterations in its surface chemistry.
Shamim Mia, F. Dijkstra, Balwant Singh
semanticscholar +1 more source
Characterization of ammonium absorption by ammonium-preferential cassava
Journal of Plant PhysiologyCassava plants can adapt to poor soils where most other crops are unable to grow normally, suggesting that they are able to efficiently uptake and utilize nutrient elements from the soils. However, little is known about the mechanism of nutrient efficiency in the crop.
Yu, Wang +6 more
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ACS Infectious Diseases, 2015
Quaternary ammonium compounds (QACs) have represented one of the most visible and effective classes of disinfectants for nearly a century. With simple preparation, wide structural variety, and versatile incorporation into consumer products, there have ...
M. Jennings, K. Minbiole, W. Wuest
semanticscholar +1 more source
Quaternary ammonium compounds (QACs) have represented one of the most visible and effective classes of disinfectants for nearly a century. With simple preparation, wide structural variety, and versatile incorporation into consumer products, there have ...
M. Jennings, K. Minbiole, W. Wuest
semanticscholar +1 more source
Cobalt Metallopeptide Electrocatalyst for the Selective Reduction of Nitrite to Ammonium.
Journal of the American Chemical Society, 2018A cobalt-tripeptide complex (CoGGH) is developed as an electrocatalyst for the selective six-electron, eight-proton reduction of nitrite to ammonium in aqueous buffer near neutral pH. The onset potential for nitrite reduction occurs at -0.65 V vs Ag/AgCl
Yixing Guo +4 more
semanticscholar +1 more source