Microwaves and layered double hydroxides: A smooth understanding

被引：38

作者：

Benito, Patricia ^{[1
]}

Labajos, Francisco M. ^{[1
]}

Rives, Vicente ^{[1
]}

机构：

[1] Univ Salamanca, GIR QUESCAT, Dept Quim Inorgan, E-37008 Salamanca, Spain

来源：

PURE AND APPLIED CHEMISTRY | 2009年 / 81卷 / 08期

关键词：

microwave radiation; hydrotalcite; layered double hydroxide; anionic clays; host-guest interactions; HYDROTALCITE-LIKE COMPOUNDS; HOMOGENEOUS PRECIPITATION; HYDROTHERMAL TREATMENT; CATALYTIC-ACTIVITY; AL; IRRADIATION; NICKEL; RECONSTRUCTION; STABILITY; ALUMINUM;

D O I：

10.1351/PAC-CON-08-07-01

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Microwave-hydrothermal treatment (MWHT), a modification of conventional hydrothermal treatment, has been used during post-treatment of different layered double hydroxides (LDHs). In some cases, microwaves (MWs) have been used simultaneously with urea hydrolysis or for reconstruction of the LDH structure. The main advantages of replacing the conventional furnaces by MW ovens are a noticeable reduction in the time required to complete the process to obtain well-crystallized materials, and modification of their particle size distribution and textural and thermal properties. MW radiation leads to an increase in the rate of urea hydrolysis and consequently to fast precipitation of LDHs. Finally, the memory effect of Ni,Al-based LDHs is also improved.

引用

页码：1459 / 1471

页数：13

共 51 条

[1] Synthesis of Al-rich hydrotalcite-like compounds by using the urea hydrolysis reaction-control of size and morphology [J].

Adachi-Pagano, M ;

Forano, C ;

Besse, JP .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (08) :1988-1993

[2]

[Anonymous], EC ACTIVITY

[3]

[Anonymous], ADSORPT SCI TECHNOL

[4] Microwave-assisted catalysts for the CPO of methane [J].

Basile, F. ;

Benito, P. ;

Fornasari, G. ;

Labajos, F. M. ;

Rives, V. ;

Rosetti, V. ;

Vaccari, A. .

SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS, PROCEEDINGS OF THE 9TH INTERNATIONAL SYMPOSIUM, 2006, 162 :761-768

[5] Influence of microwave radiation on the textural properties of layered double hydroxides [J].

Benito, P. ;

LabajoS, F. M. ;

Rocha, J. ;

Rives, V. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2006, 94 (1-3) :148-158

[6] Microwave-treated layered double hydroxides containing Ni2+ and Al3+:: The effect of added Zn2+ [J].

Benito, P. ;

Labajos, F. M. ;

Rives, V. .

JOURNAL OF SOLID STATE CHEMISTRY, 2006, 179 (12) :3784-3797

[7] Microwave-hydrothermally aged Zn,Al hydrotalcite-like compounds: Influence of the composition and the irradiation conditions [J].

Benito, P. ;

Guinea, I. ;

Labajos, F. M. ;

Rocha, J. ;

Rives, V. .

MICROPOROUS AND MESOPOROUS MATERIALS, 2008, 110 (2-3) :292-302

[8] Microwave-assisted homogeneous precipitation of hydrotalcites by urea hydrolysis [J].

Benito, P. ;

Herrero, M. ;

Barriga, C. ;

Labajos, F. M. ;

Rives, V. .

INORGANIC CHEMISTRY, 2008, 47 (12) :5453-5463

[9] Microwave-assisted reconstruction of Ni,Al hydrotalcite-like compounds [J].

Benito, P. ;

Guinea, I. ;

Labajos, F. M. ;

Rives, V. .

JOURNAL OF SOLID STATE CHEMISTRY, 2008, 181 (05) :987-996

[10] Uniform fast growth of hydrotalcite-like compounds [J].

Benito, Patricia ;

Labajos, Francisco M. ;

Rives, Vicente .

CRYSTAL GROWTH & DESIGN, 2006, 6 (08) :1961-1966

← 1 2 3 4 5 6 →