Gallium-containing zeolites: characterization of catalytic role of gallium species in converting light paraffins to aromatics

被引：19

作者：

Chao, KJ ^{[1
]}

Liu, PH ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu, Taiwan

来源：

CATALYSIS SURVEYS FROM ASIA | 2005年 / 9卷 / 01期

关键词：

Ga zeolite; DFT calculation; aromatization of paraffin;

D O I：

10.1007/s10563-005-3332-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

The structures and the chemical nature of gallium species in gallium-containing zeolite catalysts prepared by hydrothermal synthesis and post-synthesis treatments are discussed based oil the results of X-ray absorption spectroscopy (XAS), including X-ray absorption near edge structure (XANES) and Extended X-ray absorption fine structure (EXAFS), and nuclear magnetic resonance (NMR) investigations. The in-situ analysis of properties of gallium active sites during oxidation/reduction cycles has been found to be Further helpful oil the understanding of the catalytic role of gallium Species ill the atomatization of alkanes.

引用

收藏

页码：11 / 15

页数：5

相关论文

共 29 条

[1]

Insight into the dry-gel synthesis of gallium-rich zeolite [Ga]Beta [J].

Arnold, A ;

Steuernagel, S ;

Hunger, M ;

Weitkamp, J .

MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 62 (1-2) :97-106

[2]

EVIDENCE FOR THE REVERSIBLE FORMATION OF A CATALYTIC ACTIVE-SITE FOR PROPANE AROMATIZATION FOR GA2O3/H-ZSM-5 [J].

BUCKLES, G ;

HUTCHINGS, GJ .

CATALYSIS LETTERS, 1994, 27 (3-4) :361-367

[3]

PROPANE CONVERSION OVER ZEOLITE CATALYSTS - COMMENTS ON THE ROLE OF GA [J].

BUCKLES, G ;

HUTCHINGS, GJ ;

WILLIAMS, CD .

CATALYSIS LETTERS, 1991, 8 (2-4) :115-124

[4]

STUDY OF SI AND AL ORDERING IN THE FRAMEWORK OF SILICEOUS CUBIC AND HEXAGONAL FAUJASITE ZEOLITES [J].

CHAO, KJ ;

SHY, DS ;

SHEU, SP ;

LIN, CF .

MICROPOROUS MATERIALS, 1994, 2 (02) :91-104

[5]

X-ray absorption spectroscopic study on the states of gallium and platinum in Pt/Ga/H-beta zeolites [J].

Chao, KJ ;

Wei, AC ;

Wu, HC ;

Lee, JF .

MICROPOROUS AND MESOPOROUS MATERIALS, 2000, 35-6 :413-424

[6]

Chao KJ, 1997, ZEOLITES, V18, P18

[7]

Aromatization of n-heptane over H-AlMFI, Ga/H-AlMFI, H-GaMFI and H-GaAlMFI zeolite catalysts:: influence of zeolitic acidity and non-framework gallium [J].

Choudhary, VR ;

Mulla, SAR ;

Banerjee, S .

MICROPOROUS AND MESOPOROUS MATERIALS, 2003, 57 (03) :317-322

[8]

CORMA A, 1991, STUD SURF SCI CATAL, V69, P409

[9]

Incorporation of gallium into zeolites: Syntheses, properties and catalytic application [J].

Fricke, R ;

Kosslick, H ;

Lischke, G ;

Richter, M .

CHEMICAL REVIEWS, 2000, 100 (06) :2303-2405

[10]

ON THE ROLE OF GALLIUM FOR THE AROMATIZATION OF LOWER PARAFFINS WITH GA-PROMOTED ZSM-5 CATALYSTS [J].

FUJIMOTO, K ;

NAKAMURA, I ;

YOKOTA, K ;

AIMOTO, K .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1991, 64 (07) :2275-2280