Stable Aluminum Metal-Organic Frameworks (Al-MOFs) for Balanced CO2 and Water Selectivity

Haiwei Li; Xiao Feng; Dou Ma; Mengxi Zhang; Yuanyuan Zhang; Yi Liu; Jinwei Zhang; Bo Wang

doi:10.1021/acsami.7b17026

Stable Aluminum Metal-Organic Frameworks (Al-MOFs) for Balanced CO₂ and Water Selectivity

Haiwei Li
, Xiao Feng^*
, Dou Ma
, Mengxi Zhang
, Yuanyuan Zhang
, Yi Liu
, Jinwei Zhang
, Bo Wang

^*Corresponding author for this work

Beijing Institute of Technology

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

68 Citations (Scopus)

Abstract

Three new Al-MOFs in the formation of [Al₄(OH)₂(OCH₃)₄(OH-BDC)₃]·xH₂O (BIT-72), [Al₄(OH)₂(OCH₃)₄(CH₃-BDC)₃]·xH₂O (BIT-73) and {Al₄(OH)₂(OCH₃)₄[(CH₃)₂-BDC]₃}·xH₂O (BIT-74) have been synthesized by assembling Al³⁺ ion with terephthalic acid ions decorated with monohydroxyl, monomethyl or dimethyl groups, respectively. All of these three MOFs exhibit high stability in boiling water and acidic conditions. Among them, BIT-72 shows the highest surface area of 1618 m²·g^-1 and IAST CO₂/N₂ selectivity of 48, while BIT-73 and BIT-74 present moderate IAST CO₂/N₂ selectivity and much lower H₂O capacity below P/P₀ = 0.3. The high CO₂/N₂ selectivity together with alleviative H₂O sorption at low water relative pressure may provide promising potential in postcombustion CO₂ capture.

Original language	English
Pages (from-to)	3160-3163
Number of pages	4
Journal	ACS Applied Materials and Interfaces
Volume	10
Issue number	4
DOIs	https://doi.org/10.1021/acsami.7b17026
Publication status	Published - 31 Jan 2018
Externally published	Yes

Keywords

CO separation
HO sorption
aluminum
metal-organic frameworks
stability

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10.1021/acsami.7b17026

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@article{01f401d6a28a4c11b310259b12fd065d,

title = "Stable Aluminum Metal-Organic Frameworks (Al-MOFs) for Balanced CO2 and Water Selectivity",

abstract = "Three new Al-MOFs in the formation of [Al4(OH)2(OCH3)4(OH-BDC)3]·xH2O (BIT-72), [Al4(OH)2(OCH3)4(CH3-BDC)3]·xH2O (BIT-73) and \{Al4(OH)2(OCH3)4[(CH3)2-BDC]3\}·xH2O (BIT-74) have been synthesized by assembling Al3+ ion with terephthalic acid ions decorated with monohydroxyl, monomethyl or dimethyl groups, respectively. All of these three MOFs exhibit high stability in boiling water and acidic conditions. Among them, BIT-72 shows the highest surface area of 1618 m2·g-1 and IAST CO2/N2 selectivity of 48, while BIT-73 and BIT-74 present moderate IAST CO2/N2 selectivity and much lower H2O capacity below P/P0 = 0.3. The high CO2/N2 selectivity together with alleviative H2O sorption at low water relative pressure may provide promising potential in postcombustion CO2 capture.",

keywords = "CO separation, HO sorption, aluminum, metal-organic frameworks, stability",

author = "Haiwei Li and Xiao Feng and Dou Ma and Mengxi Zhang and Yuanyuan Zhang and Yi Liu and Jinwei Zhang and Bo Wang",

note = "Publisher Copyright: {\textcopyright} 2018 American Chemical Society.",

year = "2018",

month = jan,

day = "31",

doi = "10.1021/acsami.7b17026",

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volume = "10",

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journal = "ACS Applied Materials and Interfaces",

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TY - JOUR

T1 - Stable Aluminum Metal-Organic Frameworks (Al-MOFs) for Balanced CO2 and Water Selectivity

AU - Li, Haiwei

AU - Feng, Xiao

AU - Ma, Dou

AU - Zhang, Mengxi

AU - Zhang, Yuanyuan

AU - Liu, Yi

AU - Zhang, Jinwei

AU - Wang, Bo

PY - 2018/1/31

Y1 - 2018/1/31

N2 - Three new Al-MOFs in the formation of [Al4(OH)2(OCH3)4(OH-BDC)3]·xH2O (BIT-72), [Al4(OH)2(OCH3)4(CH3-BDC)3]·xH2O (BIT-73) and {Al4(OH)2(OCH3)4[(CH3)2-BDC]3}·xH2O (BIT-74) have been synthesized by assembling Al3+ ion with terephthalic acid ions decorated with monohydroxyl, monomethyl or dimethyl groups, respectively. All of these three MOFs exhibit high stability in boiling water and acidic conditions. Among them, BIT-72 shows the highest surface area of 1618 m2·g-1 and IAST CO2/N2 selectivity of 48, while BIT-73 and BIT-74 present moderate IAST CO2/N2 selectivity and much lower H2O capacity below P/P0 = 0.3. The high CO2/N2 selectivity together with alleviative H2O sorption at low water relative pressure may provide promising potential in postcombustion CO2 capture.

AB - Three new Al-MOFs in the formation of [Al4(OH)2(OCH3)4(OH-BDC)3]·xH2O (BIT-72), [Al4(OH)2(OCH3)4(CH3-BDC)3]·xH2O (BIT-73) and {Al4(OH)2(OCH3)4[(CH3)2-BDC]3}·xH2O (BIT-74) have been synthesized by assembling Al3+ ion with terephthalic acid ions decorated with monohydroxyl, monomethyl or dimethyl groups, respectively. All of these three MOFs exhibit high stability in boiling water and acidic conditions. Among them, BIT-72 shows the highest surface area of 1618 m2·g-1 and IAST CO2/N2 selectivity of 48, while BIT-73 and BIT-74 present moderate IAST CO2/N2 selectivity and much lower H2O capacity below P/P0 = 0.3. The high CO2/N2 selectivity together with alleviative H2O sorption at low water relative pressure may provide promising potential in postcombustion CO2 capture.

KW - CO separation

KW - HO sorption

KW - aluminum

KW - metal-organic frameworks

KW - stability

UR - https://www.scopus.com/pages/publications/85041344430

U2 - 10.1021/acsami.7b17026

DO - 10.1021/acsami.7b17026

M3 - Article

C2 - 29322772

AN - SCOPUS:85041344430

SN - 1944-8244

VL - 10

SP - 3160

EP - 3163

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 4

ER -

Stable Aluminum Metal-Organic Frameworks (Al-MOFs) for Balanced CO₂ and Water Selectivity

Abstract

Keywords

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