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Energy partitioning in H2 formation on interstellar carbonaceous grains. Insights from ab initio molecular dynamics simulations

Energy partitioning in H2 formation on interstellar carbonaceous grains. Insights from ab initio molecular dynamics simulations

por Albert Rimola | Dic 12, 2025 | Publication

Ab initio molecular dynamics simulations reveal a graphene model of carbonaceous dust grains absorbs only part of the energy from H₂ formation, leaving the new molecule with enough internal energy to undergo chemical desorption in diffuse interstellar clouds....
Mapping adsorption on ionic surfaces via a pairwise potential-based high-throughput approach

Mapping adsorption on ionic surfaces via a pairwise potential-based high-throughput approach

por Albert Rimola | Dic 12, 2025 | Publication

Efficient automated method using pairwise potentials predicts adsorption sites and energies on ionic surfaces, validated by comparisons to DFT for systems like formaldehyde on forsterite, enabling the rapid exploration of complex surfaces for catalysis and prebiotic...
Revealing SO2 and CO2 adsorption features on forsterite via IR spectroscopy and automated computational approaches

Revealing SO2 and CO2 adsorption features on forsterite via IR spectroscopy and automated computational approaches

por Albert Rimola | Dic 12, 2025 | Publication

combining experimental infrared spectroscopy with automated DFT calculations successfully models the adsorption of CO₂ and SO₂ on forsterite dust grains, identifying specific physisorbed and chemisorbed configurations that explain observed spectral features and inform...
Comprehensive Atomistic Simulations of Fischer–Tropsch in Outer Space: Astrocatalysis by Fe13–Supported Nanoclusters on SiO2

Comprehensive Atomistic Simulations of Fischer–Tropsch in Outer Space: Astrocatalysis by Fe13–Supported Nanoclusters on SiO2

por Albert Rimola | Dic 12, 2025 | Publication

A realistic computational model demonstrates that silica-supported iron nanoclusters can act as effective astrocatalysts for Fischer–Tropsch-type reactions in space, enabling the formation of methanol, ethanol, and hydrocarbons at temperatures above 100 K by...
Predicting accurate binding energies and vibrational spectroscopic features of interstellar icy species. A quantum mechanical study

Predicting accurate binding energies and vibrational spectroscopic features of interstellar icy species. A quantum mechanical study

por Albert Rimola | Dic 12, 2025 | Publication

Quantum chemical calculations provide accurate binding energies and simulated infrared spectra for key molecules (like CO, CO₂, CH₃OH) adsorbed on water ice, serving as crucial reference data for interpreting observations from telescopes like JWST and understanding...
Formation of the glycine isomer glycolamide (NH2C(O)CH2OH) on the surfaces of interstellar ice grains: Insights from atomistic simulations

Formation of the glycine isomer glycolamide (NH2C(O)CH2OH) on the surfaces of interstellar ice grains: Insights from atomistic simulations

por Albert Rimola | Dic 12, 2025 | Publication

Computational studies reveal the formation of the detected interstellar molecule syn-glycolamide is feasible on icy grains through the low-barrier coupling of formamide and formaldehyde radicals followed by hydrogenation, with the anti-to-syn isomerization likely...
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