Synthesis and Characterization of Adipate-pillared LDHs

You Song Sun; Qing Ze Jiao; Yun Zhao; D. G. Evans; Xue Duan

Synthesis and Characterization of Adipate-pillared LDHs

You Song Sun^*, Qing Ze Jiao, Yun Zhao, D. G. Evans, Xue Duan

^*Corresponding author for this work

Beijing University of Chemical Technology

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

2 Citations (Scopus)

Abstract

Layered double hydroxides (LDHs) or hydrotalcite-like materials of the type Mg₁-_xAl_x(OH)₂ (X^n-)_x/n · _zH₂O are most readily prepared when X^n-x is the carbonate ion. Although many other LDHs undergo facile ion-exchange reactions, the carbonate ion in LDHs is known to be very difficult to replace by conventional ion-exchange. We have developed a simple synthesis of adipate-pillared LDHs of the type Mg₄Al₂(OH)₁₂[O₂C(CH ₂)₄CO₂] · 4H₂O by direct reaction of free adipic acid with an LDH carbonate precursor. The materials obtained have been characterized by XRD, FT-IR and DTA. It is shown that by appropriate choice of reaction conditions, the carbonate ions in the precursor can be completely replaced by adipate ions. The adipate-pillared LDHs retain a layered structure with an interlayer distance of 1. 40nm. The interlayer adipate ions are lost on heating the material to 390°C.

Original language	English
Pages (from-to)	X19-418
Journal	Chinese Journal of Inorganic Chemistry
Volume	17
Issue number	3
Publication status	Published - 2001
Externally published	Yes

Keywords

Adipic acid
Characterization
Hydrotalcite
Pillared hydrotalcite
Synthesis

Cite this

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title = "Synthesis and Characterization of Adipate-pillared LDHs",

abstract = "Layered double hydroxides (LDHs) or hydrotalcite-like materials of the type Mg1-xAlx(OH)2 (Xn-)x/n · zH2O are most readily prepared when Xn-x is the carbonate ion. Although many other LDHs undergo facile ion-exchange reactions, the carbonate ion in LDHs is known to be very difficult to replace by conventional ion-exchange. We have developed a simple synthesis of adipate-pillared LDHs of the type Mg4Al2(OH)12[O2C(CH 2)4CO2] · 4H2O by direct reaction of free adipic acid with an LDH carbonate precursor. The materials obtained have been characterized by XRD, FT-IR and DTA. It is shown that by appropriate choice of reaction conditions, the carbonate ions in the precursor can be completely replaced by adipate ions. The adipate-pillared LDHs retain a layered structure with an interlayer distance of 1. 40nm. The interlayer adipate ions are lost on heating the material to 390°C.",

keywords = "Adipic acid, Characterization, Hydrotalcite, Pillared hydrotalcite, Synthesis",

author = "Sun, {You Song} and Jiao, {Qing Ze} and Yun Zhao and Evans, {D. G.} and Xue Duan",

year = "2001",

language = "English",

volume = "17",

pages = "X19--418",

journal = "Chinese Journal of Inorganic Chemistry",

issn = "1001-4861",

publisher = "Chinese Chemical Society",

number = "3",

}

TY - JOUR

T1 - Synthesis and Characterization of Adipate-pillared LDHs

AU - Sun, You Song

AU - Jiao, Qing Ze

AU - Zhao, Yun

AU - Evans, D. G.

AU - Duan, Xue

PY - 2001

Y1 - 2001

N2 - Layered double hydroxides (LDHs) or hydrotalcite-like materials of the type Mg1-xAlx(OH)2 (Xn-)x/n · zH2O are most readily prepared when Xn-x is the carbonate ion. Although many other LDHs undergo facile ion-exchange reactions, the carbonate ion in LDHs is known to be very difficult to replace by conventional ion-exchange. We have developed a simple synthesis of adipate-pillared LDHs of the type Mg4Al2(OH)12[O2C(CH 2)4CO2] · 4H2O by direct reaction of free adipic acid with an LDH carbonate precursor. The materials obtained have been characterized by XRD, FT-IR and DTA. It is shown that by appropriate choice of reaction conditions, the carbonate ions in the precursor can be completely replaced by adipate ions. The adipate-pillared LDHs retain a layered structure with an interlayer distance of 1. 40nm. The interlayer adipate ions are lost on heating the material to 390°C.

AB - Layered double hydroxides (LDHs) or hydrotalcite-like materials of the type Mg1-xAlx(OH)2 (Xn-)x/n · zH2O are most readily prepared when Xn-x is the carbonate ion. Although many other LDHs undergo facile ion-exchange reactions, the carbonate ion in LDHs is known to be very difficult to replace by conventional ion-exchange. We have developed a simple synthesis of adipate-pillared LDHs of the type Mg4Al2(OH)12[O2C(CH 2)4CO2] · 4H2O by direct reaction of free adipic acid with an LDH carbonate precursor. The materials obtained have been characterized by XRD, FT-IR and DTA. It is shown that by appropriate choice of reaction conditions, the carbonate ions in the precursor can be completely replaced by adipate ions. The adipate-pillared LDHs retain a layered structure with an interlayer distance of 1. 40nm. The interlayer adipate ions are lost on heating the material to 390°C.

KW - Adipic acid

KW - Characterization

KW - Hydrotalcite

KW - Pillared hydrotalcite

KW - Synthesis

UR - http://www.scopus.com/inward/record.url?scp=0345856664&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0345856664

SN - 1001-4861

VL - 17

SP - X19-418

JO - Chinese Journal of Inorganic Chemistry

JF - Chinese Journal of Inorganic Chemistry

IS - 3

ER -

Synthesis and Characterization of Adipate-pillared LDHs

Abstract

Keywords

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