Surface properties and CO adsorption on zirconia polymorphs

被引：135

作者：

Ma, ZY ^{[1
]}

Cheng, Y ^{[1
]}

Wei, W ^{[1
]}

Li, WH ^{[1
]}

Sun, YH ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, Taiyuan 030001, Peoples R China

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2005年 / 227卷 / 1-2期

关键词：

zirconia; surface hydroxyl; acidity and basicity; CO adsorption;

D O I：

10.1016/j.molcata.2004.10.017

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 ; 081704 ;

摘要：

FT-IR spectroscopy and TPD profiles were performed to determine and compare the surface properties of amorphous, monoclinic and tetragonal zirconia polymorphs. It was found that zirconia polymorphs exhibited different surface hydroxyl and acid-base properties. These differences had great influence on the behavior of CO adsorption and reaction. Formate species could be formed at higher temperature via CO reaction with hydroxyl groups on the surface of amorphous and monoclinic zirconia, while bicarbonate and carbonate species were detected on tetragonal zirconia. whether hydrogen introduced or not. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：119 / 124

页数：6

共 27 条

[1] Interaction of carbon dioxide with the surface of zirconia polymorphs [J].

Bachiller-Baeza, B ;

Rodriguez-Ramos, I ;

Guerrero-Ruiz, A .

LANGMUIR, 1998, 14 (13) :3556-3564

[2] INFRARED STUDY OF ALCOHOLS ADSORPTION ON ZIRCONIUM-OXIDE - REACTIVITY OF ALKOXY SPECIES TOWARDS CO2 [J].

BENSITEL, M ;

MORAVEK, V ;

LAMOTTE, J ;

SAUR, O ;

LAVALLEY, JC .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1987, 43 (12) :1487-1491

[3] INTERMEDIATE SPECIES ON ZIRCONIA SUPPORTED METHANOL AEROGEL CATALYSTS .3. ADSORPTION OF CARBON-MONOXIDE ON COPPER-CONTAINING SOLIDS [J].

BIANCHI, D ;

CHAFIK, T ;

KHALFALLAH, M ;

TEICHNER, SJ .

APPLIED CATALYSIS A-GENERAL, 1994, 112 (01) :57-73

[4] INTERMEDIATE SPECIES ON ZIRCONIA SUPPORTED METHANOL AEROGEL CATALYSTS .2. ADSORPTION OF CARBON-MONOXIDE ON PURE ZIRCONIA AND ON ZIRCONIA CONTAINING ZINC-OXIDE [J].

BIANCHI, D ;

CHAFIK, T ;

KHALFALLAH, M ;

TEICHNER, SJ .

APPLIED CATALYSIS A-GENERAL, 1993, 105 (02) :223-249

[5] DEVELOPMENT AND SUPPRESSION OF SURFACE-ACIDITY ON MONOCLINIC ZIRCONIA - A SPECTROSCOPIC AND CALORIMETRIC INVESTIGATION [J].

BOLIS, V ;

MORTERRA, C ;

VOLANTE, M ;

ORIO, L ;

FUBINI, B .

LANGMUIR, 1990, 6 (03) :695-701

[6] Surface characterization of monoclinic ZrO2 .1. Morphology, FTIR spectral features, and computer modelling [J].

Cerrato, G ;

Bordiga, S ;

Barbera, S ;

Morterra, C .

APPLIED SURFACE SCIENCE, 1997, 115 (01) :53-65

[7] In situ infrared study of methanol synthesis from H2/CO over Cu/SiO2 and Cu/ZrO2/SiO2 [J].

Fisher, IA ;

Bell, AT .

JOURNAL OF CATALYSIS, 1998, 178 (01) :153-173

[8] INFRARED STUDY OF SYNGAS ADSORPTION ON ZIRCONIA [J].

GUGLIELMINOTTI, E .

LANGMUIR, 1990, 6 (09) :1455-1460

[9] SURFACE-CHEMISTRY OF ZIRCONIA POLYMORPHS [J].

HERTL, W .

LANGMUIR, 1989, 5 (01) :96-100

[10] Effects of zirconia phase on the synthesis of methanol over zirconia-supported copper [J].

Jung, KT ;

Bell, AT .

CATALYSIS LETTERS, 2002, 80 (1-2) :63-68

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