High-enthalpy hydrogen adsorption in cation-exchanged variants of the microporous metal-organic framework Mn3[(Mn4CI) 3(BTT)8(CH3OH)10]2

Mircea Dincǎ; Jeffrey R. Long

doi:10.1021/ja072871f

High-enthalpy hydrogen adsorption in cation-exchanged variants of the microporous metal-organic framework Mn₃[(Mn₄CI) ₃(BTT)₈(CH₃OH)₁₀]₂

Mircea Dincǎ, Jeffrey R. Long

Research output: Contribution to journal › Article › peer-review

476 Scopus citations

Abstract

Exchange of the guest Mn²⁺ ions in Mn₃[(Mn ₄CI)₃(BTT)₈(CH₃OH) ₁₀]₂ (1-Mn²⁺; BTT = 1,3,5- benzenetristetrazolate) with selected cations results in the formation of isostructural framework compounds 1-M (M = Li⁺, Cu⁺, Fe²⁺, Co²⁺, Ni²⁺, Cu²⁺, Zn ²⁺). Similar to the parent compound, the new microporous materials are stable to desolvation and exhibit a high H₂ storage capacity, ranging from 2.00 to 2.29 wt % at 77 K and 900 torr. Measurements of the isosteric heat of adsorption at zero coverage reveal a difference of 2 kJ/mol between the weakest and strongest H₂-binding materials, which is attributed to variations in the strength of interaction between H₂ molecules and unsaturated metal centers within each framework. The Co ²⁺-exchanged compound, 1-Co²⁺, exhibits an initial enthalpy of adsorption of 10.5 kJ/mol, the highest yet observed for a microporous metal-organic framework.

Original language	English (US)
Pages (from-to)	11172-11176
Number of pages	5
Journal	Journal of the American Chemical Society
Volume	129
Issue number	36
DOIs	https://doi.org/10.1021/ja072871f
State	Published - Sep 12 2007
Externally published	Yes

All Science Journal Classification (ASJC) codes

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

Access to Document

10.1021/ja072871f

Cite this

@article{7a1c95d11a7d4f99affbcc566e663df8,

title = "High-enthalpy hydrogen adsorption in cation-exchanged variants of the microporous metal-organic framework Mn3[(Mn4CI) 3(BTT)8(CH3OH)10]2",

abstract = "Exchange of the guest Mn2+ ions in Mn3[(Mn 4CI)3(BTT)8(CH3OH) 10]2 (1-Mn2+; BTT = 1,3,5- benzenetristetrazolate) with selected cations results in the formation of isostructural framework compounds 1-M (M = Li+, Cu+, Fe2+, Co2+, Ni2+, Cu2+, Zn 2+). Similar to the parent compound, the new microporous materials are stable to desolvation and exhibit a high H2 storage capacity, ranging from 2.00 to 2.29 wt % at 77 K and 900 torr. Measurements of the isosteric heat of adsorption at zero coverage reveal a difference of 2 kJ/mol between the weakest and strongest H2-binding materials, which is attributed to variations in the strength of interaction between H2 molecules and unsaturated metal centers within each framework. The Co 2+-exchanged compound, 1-Co2+, exhibits an initial enthalpy of adsorption of 10.5 kJ/mol, the highest yet observed for a microporous metal-organic framework.",

author = "Mircea Dincǎ and Long, {Jeffrey R.}",

year = "2007",

month = sep,

day = "12",

doi = "10.1021/ja072871f",

language = "English (US)",

volume = "129",

pages = "11172--11176",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "36",

}

TY - JOUR

T1 - High-enthalpy hydrogen adsorption in cation-exchanged variants of the microporous metal-organic framework Mn3[(Mn4CI) 3(BTT)8(CH3OH)10]2

AU - Dincǎ, Mircea

AU - Long, Jeffrey R.

PY - 2007/9/12

Y1 - 2007/9/12

N2 - Exchange of the guest Mn2+ ions in Mn3[(Mn 4CI)3(BTT)8(CH3OH) 10]2 (1-Mn2+; BTT = 1,3,5- benzenetristetrazolate) with selected cations results in the formation of isostructural framework compounds 1-M (M = Li+, Cu+, Fe2+, Co2+, Ni2+, Cu2+, Zn 2+). Similar to the parent compound, the new microporous materials are stable to desolvation and exhibit a high H2 storage capacity, ranging from 2.00 to 2.29 wt % at 77 K and 900 torr. Measurements of the isosteric heat of adsorption at zero coverage reveal a difference of 2 kJ/mol between the weakest and strongest H2-binding materials, which is attributed to variations in the strength of interaction between H2 molecules and unsaturated metal centers within each framework. The Co 2+-exchanged compound, 1-Co2+, exhibits an initial enthalpy of adsorption of 10.5 kJ/mol, the highest yet observed for a microporous metal-organic framework.

AB - Exchange of the guest Mn2+ ions in Mn3[(Mn 4CI)3(BTT)8(CH3OH) 10]2 (1-Mn2+; BTT = 1,3,5- benzenetristetrazolate) with selected cations results in the formation of isostructural framework compounds 1-M (M = Li+, Cu+, Fe2+, Co2+, Ni2+, Cu2+, Zn 2+). Similar to the parent compound, the new microporous materials are stable to desolvation and exhibit a high H2 storage capacity, ranging from 2.00 to 2.29 wt % at 77 K and 900 torr. Measurements of the isosteric heat of adsorption at zero coverage reveal a difference of 2 kJ/mol between the weakest and strongest H2-binding materials, which is attributed to variations in the strength of interaction between H2 molecules and unsaturated metal centers within each framework. The Co 2+-exchanged compound, 1-Co2+, exhibits an initial enthalpy of adsorption of 10.5 kJ/mol, the highest yet observed for a microporous metal-organic framework.

UR - http://www.scopus.com/inward/record.url?scp=34548712420&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34548712420&partnerID=8YFLogxK

U2 - 10.1021/ja072871f

DO - 10.1021/ja072871f

M3 - Article

C2 - 17705485

AN - SCOPUS:34548712420

SN - 0002-7863

VL - 129

SP - 11172

EP - 11176

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 36

ER -

High-enthalpy hydrogen adsorption in cation-exchanged variants of the microporous metal-organic framework Mn₃[(Mn₄CI) ₃(BTT)₈(CH₃OH)₁₀]₂

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this