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Nanomaterials
Volume 9
Issue 2
10.3390/nano9020160
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Article

Critical Admission Temperature of H2 and CH4 in Nanopores of Exchanged ERI Zeolites

by
Karla Quiroz-Estrada
1,
Miguel Ángel Hernández
2,*,
Carlos Felipe-Mendoza
3,
Juana Deisy Santamaría-Juárez
4,
Vitalii Petranovskii
5 and
Efraín Rubio
6
1
Doctorado en Nanociencias y Micro-Nanotecnologías, UPIBI, Instituto Politécnico Nacional, Ciudad de México 07340, Mexico
2
Departamento de Investigación en Zeolitas, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico
3
Departamento de Biociencias e Ingeniería, CIIEMAD, Instituto Politécnico Nacional, Ciudad de México 07340, Mexico
4
Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico
5
Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Carretera Tijuana-Ensenada, Km. 107, Ensenada 22860, Mexico
6
Centro Universitario de Vinculación y Transferencia de Tecnología, Benemérita Universidad Autónoma de Puebla, Puebla 72570, Mexico
*
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(2), 160; https://doi.org/10.3390/nano9020160
Submission received: 10 November 2018 / Revised: 7 January 2019 / Accepted: 18 January 2019 / Published: 29 January 2019
(This article belongs to the Special Issue Advanced Nanomaterials for Pollutant Gases Reduction and Abatement)
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Abstract

Due to the nanoporous nature of zeolitic materials, they can be used as gas adsorbents. This paper describes the effect of critical admission temperature through narrow pores of natural ERI zeolites at low levels of coverage. This phenomenon occurs by adsorption of CH4 and H2 on pores in natural erionite. The zeolite was exchanged with aqueous solutions of Na+, Mg2+, and Ca2+ salts at different concentrations, times, and temperatures of treatment. Experimental data of CH4 and H2 adsorption were treated by the Langmuir equation. Complementarily, the degree of interaction of these gases with these zeolites was evaluated by the evolution of isosteric heats of adsorption. The Ca2+ and Mg2+ cations favor the adsorption phenomena of H2 and CH4. These cations occupy sites in strategic positions Ca1, Ca2, and Ca3, which are located in the nanocavities of erionite zeolites and K2 in the center of 8MR. Following the conditions of temperature and the exchange treatment, ERICa2 and ERINa3 samples showed the best behavior for CH4 and H2 adsorption.
Keywords: hydrogen; methane; greenhouse gas; erionite hydrogen; methane; greenhouse gas; erionite

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MDPI and ACS Style

Quiroz-Estrada, K.; Hernández, M.Á.; Felipe-Mendoza, C.; Santamaría-Juárez, J.D.; Petranovskii, V.; Rubio, E. Critical Admission Temperature of H2 and CH4 in Nanopores of Exchanged ERI Zeolites. Nanomaterials 2019, 9, 160. https://doi.org/10.3390/nano9020160

AMA Style

Quiroz-Estrada K, Hernández MÁ, Felipe-Mendoza C, Santamaría-Juárez JD, Petranovskii V, Rubio E. Critical Admission Temperature of H2 and CH4 in Nanopores of Exchanged ERI Zeolites. Nanomaterials. 2019; 9(2):160. https://doi.org/10.3390/nano9020160

Chicago/Turabian Style

Quiroz-Estrada, Karla, Miguel Ángel Hernández, Carlos Felipe-Mendoza, Juana Deisy Santamaría-Juárez, Vitalii Petranovskii, and Efraín Rubio. 2019. "Critical Admission Temperature of H2 and CH4 in Nanopores of Exchanged ERI Zeolites" Nanomaterials 9, no. 2: 160. https://doi.org/10.3390/nano9020160

APA Style

Quiroz-Estrada, K., Hernández, M. Á., Felipe-Mendoza, C., Santamaría-Juárez, J. D., Petranovskii, V., & Rubio, E. (2019). Critical Admission Temperature of H2 and CH4 in Nanopores of Exchanged ERI Zeolites. Nanomaterials, 9(2), 160. https://doi.org/10.3390/nano9020160

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