Vibrational and thermodynamic properties of Ar, N2, O2, H2 and CO adsorbed and condensed into (H,Na)-Y zeolite cages as studied by variable temperature IR spectroscopy

Physical Chemistry Chemical Physics : PCCP
Evgueni GribovA Zecchina

Abstract

The adsorption of Ar, H2, O2, N2 and CO on (H,Na)-Y zeolite (Si/Al = 2.9, H+/Na+ approximately 5) has been studied at variable-temperature (90-20 K) and sub-atmospheric pressure (0-40 mbar) by FTIR spectroscopy. Unprecedented filling conditions of the zeolite cavities were attained, which allowed the investigation of very weakly adsorbed species and of condensed, liquid-like or solid-like, phases. Two pressure regimes were singled out, characterized by: (i) specific interaction at low pressure of the probe molecules (P) with the internal Brønsted and Lewis sites, and (ii) multilayer adsorption at higher pressure. In the case of CO the perturbation of the protonic sites located inside the sodalite cages was also observed. As the molecule is too large to penetrate the sodalite cage, the perturbation is thought to involve a proton jump tunneling mechanism. The adsorption energy for the (HF)OH...P (P = Ar, H2, O2, N2 and CO) specific interaction involving the high frequency Brønsted acid sites exposed in the supercages was derived following the VTIR (variable temperature infrared spectroscopy) method described by E. Garrone and C. Otero Areán (Chem. Soc. Rev., 2005, 34, 846).

References

Sep 13, 2003·Advances in Colloid and Interface Science·Chenhang Sun, John C Berg
Apr 28, 2005·Journal of the American Chemical Society·Adriano ZecchinaKarl Petter Lillerud
Oct 22, 2005·Physical Chemistry Chemical Physics : PCCP·Laura RegliSilvia Bordiga
Apr 21, 2005·Physical Chemistry Chemical Physics : PCCP·Adriano ZecchinaSilvia Bordiga
Dec 4, 1998·Angewandte Chemie·Carlos Otero AreánAdriano Zecchina

❮ Previous
Next ❯

Citations

May 11, 2011·Chemical Communications : Chem Comm·Anette HäusserEmil Roduner
Oct 6, 2015·Chemical Society Reviews·Silvia BordigaFrédéric Thibault-Starzyk
Jan 25, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sarah KomatySvetlana Mintova
Jul 14, 2007·Physical Chemistry Chemical Physics : PCCP·S BordigaA Zecchina
Sep 14, 2007·Physical Chemistry Chemical Physics : PCCP·Giuseppe SpotoAdriano Zecchina
May 8, 2010·Physical Chemistry Chemical Physics : PCCP·Shampa SantraGuntram Rauhut
Jul 14, 2007·Physical Chemistry Chemical Physics : PCCP·Gabriele RicchiardiAdriano Zecchina
Apr 24, 2020·Physical Chemistry Chemical Physics : PCCP·Sarah KomatySvetlana Mintova
Dec 24, 2011·Physical Chemistry Chemical Physics : PCCP·P NachtigallC O Arean
Oct 5, 2012·Physical Chemistry Chemical Physics : PCCP·Viktoras DryzaEvan J Bieske
Jan 15, 2010·Journal of the American Chemical Society·Nour NijemYves J Chabal
Feb 13, 2009·Journal of the American Chemical Society·Christopher M StaniskyMartin Saunders

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.