Enhancing CO                         2                          Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions

Yue Yu; Xu Li; Rajamani Krishna; Yuchuan Liu; Yuanzheng Cui; Jianfeng Du; Zhiqiang Liang; Xiaowei Song; Jihong Yu

doi:10.1021/acsami.8b11235

Enhancing CO ₂ Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions

Yue Yu, Xu Li, Rajamani Krishna, Yuchuan Liu, Yuanzheng Cui, Jianfeng Du, Zhiqiang Liang, Xiaowei Song^*, Jihong Yu

^*Corresponding author for this work

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

32 Citations (Scopus)

Abstract

Mg, Co-substituted aluminophosphate zeolites with ERI framework topology (denoted as MgAPO-ERI and CoAPO-ERI) have been synthesized under hydrothermal conditions by using N,N,N′,N′-tetramethyl-1,6-hexanediamine as organic template. Their CO ₂ adsorption properties are investigated in comparison to those of the pure aluminophosphate counterpart AlPO-ERI. CoAPO-ERI shows the highest CO ₂ uptake of 57.3 cm ³ g ^-1 (273 K and 1 bar) and the highest isosteric heat of 39.0 kJ mol ^-1 among the three samples. Importantly, the incorporation of Mg ²⁺ and Co ²⁺ ions in the framework of AlPO-ERI can greatly improve the adsorption selectivities of CO ₂ over CH ₄ and N ₂ . Whereafter, transient breakthrough simulations were investigated and further proved the advantages of heteroatoms for separations. These results demonstrate that isomorphous heteroatom substitutions in aluminophosphate zeolites play a key role in enhancing CO ₂ adsorption and separation abilities.

Original language	English
Pages (from-to)	43570-43577
Number of pages	8
Journal	ACS applied materials & interfaces
Volume	10
Issue number	50
DOIs	https://doi.org/10.1021/acsami.8b11235
Publication status	Published - 19 Dec 2018
Externally published	Yes

Keywords

CO adsorption
ERI
aluminophosphate
heteroatom
isomorphous substitution

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10.1021/acsami.8b11235

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Yu, Y., Li, X., Krishna, R., Liu, Y., Cui, Y., Du, J., Liang, Z., Song, X., & Yu, J. (2018). Enhancing CO ₂ Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions ACS applied materials & interfaces, 10(50), 43570-43577. https://doi.org/10.1021/acsami.8b11235

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title = " Enhancing CO 2 Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions ",

abstract = " Mg, Co-substituted aluminophosphate zeolites with ERI framework topology (denoted as MgAPO-ERI and CoAPO-ERI) have been synthesized under hydrothermal conditions by using N,N,N′,N′-tetramethyl-1,6-hexanediamine as organic template. Their CO 2 adsorption properties are investigated in comparison to those of the pure aluminophosphate counterpart AlPO-ERI. CoAPO-ERI shows the highest CO 2 uptake of 57.3 cm 3 g -1 (273 K and 1 bar) and the highest isosteric heat of 39.0 kJ mol -1 among the three samples. Importantly, the incorporation of Mg 2+ and Co 2+ ions in the framework of AlPO-ERI can greatly improve the adsorption selectivities of CO 2 over CH 4 and N 2 . Whereafter, transient breakthrough simulations were investigated and further proved the advantages of heteroatoms for separations. These results demonstrate that isomorphous heteroatom substitutions in aluminophosphate zeolites play a key role in enhancing CO 2 adsorption and separation abilities.",

keywords = "CO adsorption, ERI, aluminophosphate, heteroatom, isomorphous substitution",

author = "Yue Yu and Xu Li and Rajamani Krishna and Yuchuan Liu and Yuanzheng Cui and Jianfeng Du and Zhiqiang Liang and Xiaowei Song and Jihong Yu",

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

year = "2018",

month = dec,

day = "19",

doi = "10.1021/acsami.8b11235",

language = "English",

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Yu, Y, Li, X, Krishna, R, Liu, Y, Cui, Y, Du, J, Liang, Z, Song, X & Yu, J 2018, ' Enhancing CO ₂ Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions ', ACS applied materials & interfaces, vol. 10, no. 50, pp. 43570-43577. https://doi.org/10.1021/acsami.8b11235

Enhancing CO ₂ Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions . / Yu, Yue; Li, Xu; Krishna, Rajamani et al.
In: ACS applied materials & interfaces, Vol. 10, No. 50, 19.12.2018, p. 43570-43577.

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

TY - JOUR

T1 - Enhancing CO 2 Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions

AU - Yu, Yue

AU - Li, Xu

AU - Krishna, Rajamani

AU - Liu, Yuchuan

AU - Cui, Yuanzheng

AU - Du, Jianfeng

AU - Liang, Zhiqiang

AU - Song, Xiaowei

AU - Yu, Jihong

PY - 2018/12/19

Y1 - 2018/12/19

N2 - Mg, Co-substituted aluminophosphate zeolites with ERI framework topology (denoted as MgAPO-ERI and CoAPO-ERI) have been synthesized under hydrothermal conditions by using N,N,N′,N′-tetramethyl-1,6-hexanediamine as organic template. Their CO 2 adsorption properties are investigated in comparison to those of the pure aluminophosphate counterpart AlPO-ERI. CoAPO-ERI shows the highest CO 2 uptake of 57.3 cm 3 g -1 (273 K and 1 bar) and the highest isosteric heat of 39.0 kJ mol -1 among the three samples. Importantly, the incorporation of Mg 2+ and Co 2+ ions in the framework of AlPO-ERI can greatly improve the adsorption selectivities of CO 2 over CH 4 and N 2 . Whereafter, transient breakthrough simulations were investigated and further proved the advantages of heteroatoms for separations. These results demonstrate that isomorphous heteroatom substitutions in aluminophosphate zeolites play a key role in enhancing CO 2 adsorption and separation abilities.

AB - Mg, Co-substituted aluminophosphate zeolites with ERI framework topology (denoted as MgAPO-ERI and CoAPO-ERI) have been synthesized under hydrothermal conditions by using N,N,N′,N′-tetramethyl-1,6-hexanediamine as organic template. Their CO 2 adsorption properties are investigated in comparison to those of the pure aluminophosphate counterpart AlPO-ERI. CoAPO-ERI shows the highest CO 2 uptake of 57.3 cm 3 g -1 (273 K and 1 bar) and the highest isosteric heat of 39.0 kJ mol -1 among the three samples. Importantly, the incorporation of Mg 2+ and Co 2+ ions in the framework of AlPO-ERI can greatly improve the adsorption selectivities of CO 2 over CH 4 and N 2 . Whereafter, transient breakthrough simulations were investigated and further proved the advantages of heteroatoms for separations. These results demonstrate that isomorphous heteroatom substitutions in aluminophosphate zeolites play a key role in enhancing CO 2 adsorption and separation abilities.

KW - CO adsorption

KW - ERI

KW - aluminophosphate

KW - heteroatom

KW - isomorphous substitution

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DO - 10.1021/acsami.8b11235

M3 - Article

C2 - 30512947

AN - SCOPUS:85058552519

SN - 1944-8244

VL - 10

SP - 43570

EP - 43577

JO - ACS applied materials & interfaces

JF - ACS applied materials & interfaces

IS - 50

ER -

Enhancing CO ₂ Adsorption and Separation Properties of Aluminophosphate Zeolites by Isomorphous Heteroatom Substitutions

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Keywords

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