Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids

O Poch, I Istiqomah, E Quirico, P Beck, B Schmitt… - Science, 2020 - science.org
INTRODUCTION Comets and asteroids preserve information on the earliest stages of Solar
System formation and on the composition of its building blocks. The nature of their solid …

Thermal Synthesis of Carbamic Acid and Its Dimer in Interstellar Ices: A Reservoir of Interstellar Amino Acids

JH Marks, J Wang, BJ Sun, M McAnally… - ACS central …, 2023 - ACS Publications
Reactions in interstellar ices are shown to be capable of producing key prebiotic molecules
without energetic radiation that are necessary for the origins of life. When present in …

Aldehydes and sugars from evolved precometary ice analogs: Importance of ices in astrochemical and prebiotic evolution

P de Marcellus, C Meinert… - Proceedings of the …, 2015 - National Acad Sciences
Evolved interstellar ices observed in dense protostellar molecular clouds may arguably be
considered as part of precometary materials that will later fall on primitive telluric planets …

Thermal reactions in interstellar ice: A step towards molecular complexity in the interstellar medium

P Theulé, F Duvernay, G Danger, F Borget… - Advances in Space …, 2013 - Elsevier
Complex organic molecules are widely observed in star-forming regions, although their
formation mechanisms are not well understood. Solid-state chemistry is thought to play an …

Characterization of laboratory analogs of interstellar/cometary organic residues using very high resolution mass spectrometry

G Danger, FR Orthous-Daunay, P De Marcellus… - … et Cosmochimica Acta, 2013 - Elsevier
Studying the chemical composition of organic matter in astrophysical environments is an
important means to improve our understanding of its origin and evolution. This organic …

Evolution of interstellar organic compounds under asteroidal hydrothermal conditions

V Vinogradoff, S Bernard, C Le Guillou, L Remusat - Icarus, 2018 - Elsevier
Carbonaceous chondrites (CC) contain a diversity of organic compounds. No definitive
evidence for a genetic relationship between these complex organic molecules and the …

[HTML][HTML] Proton-conducting biopolymer electrolytes based on carboxymethyl cellulose doped with ammonium formate

MIH Sohaimy, MIN Isa - Polymers, 2022 - mdpi.com
In this work, CMC-AFT biopolymer electrolytes system was developed using Carboxymethyl
cellulose (CMC) doped with varied amount (10–50 wt.%) of ammonium formate (AFT) in …

Effect of substrate surface treatment on the hydrothermal synthesis of zinc oxide nanostructures

G Ahmadpour, MR Nilforoushan, BS Boroujeny… - Ceramics …, 2022 - Elsevier
In this investigation, ZnO nanostructures were coated via hydrothermal process on glass
substrate surfaces, which were treated by acidic and alkaline solutions. Furthermore, the …

Influence of phyllosilicates on the hydrothermal alteration of organic matter in asteroids: Experimental perspectives

V Vinogradoff, C Le Guillou, S Bernard… - … et Cosmochimica Acta, 2020 - Elsevier
The origin of the diverse organic compounds present in carbonaceous chondrites (CC)
remains uncertain. We aim at investigating the role that hydrothermal alteration may have …

Hydrogenation at low temperatures does not always lead to saturation: the case of HNCO

JA Noble, P Theule, E Congiu, F Dulieu… - Astronomy & …, 2015 - aanda.org
Context. It is generally agreed that hydrogenation reactions dominate chemistry on grain
surfaces in cold, dense molecular cores, saturating the molecules present in ice mantles …