Studying the adsorption mechanism of hydrogen on the carbon based adsorbents for storage purposes

Ali Qajar; Maryam Peer; Ramakrishnan Rajagopalan; Henry C. Foley

Studying the adsorption mechanism of hydrogen on the carbon based adsorbents for storage purposes

Ali Qajar, Maryam Peer, Ramakrishnan Rajagopalan, Henry C. Foley

Engineering Science and Mechanics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Hydrogen adsorption on carbon based adsorbents was studied via synthesizing modified version of carbons by incorporating Boron and other heteroatoms. Presence of heteroatoms changed force field energy in the pores and the interaction energy distribution between H ₂ molecules and the adsorbent surface. At room temperature carbon adsorbents are believed to be able to adsorb H ₂ with 9 KJ/mol. Theoretically, incorporation of boron can increased with value to 12 KJ/mol. This changes is attributed to the electon deficiency of boron. XRD, XPS and TEM techniques were utilized to characterize the synthesized materials. XPS confirmed incorporation of ∼ 17 (atomic)% boron in carbon structure. A sample with 700 m ²/g surface area and ∼12 KJ/mol was synthesized. Besides, presence of turbostratic regions was verified by XRD patterns and TEM images.

Original language	English (US)
Title of host publication	11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
State	Published - Dec 1 2011
Event	2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States Duration: Oct 16 2011 → Oct 21 2011

Other

Other	2011 AIChE Annual Meeting, 11AIChE
Country	United States
City	Minneapolis, MN
Period	10/16/11 → 10/21/11

All Science Journal Classification (ASJC) codes

Chemical Engineering(all)

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Qajar, A., Peer, M., Rajagopalan, R., & Foley, H. C. (2011). Studying the adsorption mechanism of hydrogen on the carbon based adsorbents for storage purposes. In 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings

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title = "Studying the adsorption mechanism of hydrogen on the carbon based adsorbents for storage purposes",

abstract = "Hydrogen adsorption on carbon based adsorbents was studied via synthesizing modified version of carbons by incorporating Boron and other heteroatoms. Presence of heteroatoms changed force field energy in the pores and the interaction energy distribution between H 2 molecules and the adsorbent surface. At room temperature carbon adsorbents are believed to be able to adsorb H 2 with 9 KJ/mol. Theoretically, incorporation of boron can increased with value to 12 KJ/mol. This changes is attributed to the electon deficiency of boron. XRD, XPS and TEM techniques were utilized to characterize the synthesized materials. XPS confirmed incorporation of ∼ 17 (atomic)% boron in carbon structure. A sample with 700 m 2/g surface area and ∼12 KJ/mol was synthesized. Besides, presence of turbostratic regions was verified by XRD patterns and TEM images.",

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AU - Qajar, Ali

AU - Peer, Maryam

AU - Rajagopalan, Ramakrishnan

AU - Foley, Henry C.

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Hydrogen adsorption on carbon based adsorbents was studied via synthesizing modified version of carbons by incorporating Boron and other heteroatoms. Presence of heteroatoms changed force field energy in the pores and the interaction energy distribution between H 2 molecules and the adsorbent surface. At room temperature carbon adsorbents are believed to be able to adsorb H 2 with 9 KJ/mol. Theoretically, incorporation of boron can increased with value to 12 KJ/mol. This changes is attributed to the electon deficiency of boron. XRD, XPS and TEM techniques were utilized to characterize the synthesized materials. XPS confirmed incorporation of ∼ 17 (atomic)% boron in carbon structure. A sample with 700 m 2/g surface area and ∼12 KJ/mol was synthesized. Besides, presence of turbostratic regions was verified by XRD patterns and TEM images.

AB - Hydrogen adsorption on carbon based adsorbents was studied via synthesizing modified version of carbons by incorporating Boron and other heteroatoms. Presence of heteroatoms changed force field energy in the pores and the interaction energy distribution between H 2 molecules and the adsorbent surface. At room temperature carbon adsorbents are believed to be able to adsorb H 2 with 9 KJ/mol. Theoretically, incorporation of boron can increased with value to 12 KJ/mol. This changes is attributed to the electon deficiency of boron. XRD, XPS and TEM techniques were utilized to characterize the synthesized materials. XPS confirmed incorporation of ∼ 17 (atomic)% boron in carbon structure. A sample with 700 m 2/g surface area and ∼12 KJ/mol was synthesized. Besides, presence of turbostratic regions was verified by XRD patterns and TEM images.

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