Defect Chemistry of Ceria Nanorods

被引：128

作者：

Agarwal, S. ^{[1
]}

Zhu, X. ^{[2
]}

Hensen, E. J. M. ^{[2
]}

Lefferts, L. ^{[1
]}

Mojet, B. L. ^{[1
]}

机构：

[1] Univ Twente, Fac Sci & Technol, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands

[2] Eindhoven Univ Technol, Dept Chem Engn & Chem, Schuit Inst Catalysis, Lab Inorgan Mat Chem, NL-5600 MB Eindhoven, Netherlands

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2014年 / 118卷 / 08期

关键词：

WATER-GAS-SHIFT; TRANSFORM INFRARED-SPECTROSCOPY; CARBON-MONOXIDE ADSORPTION; RAMAN-SPECTROSCOPY; CO ADSORPTION; CATALYTIC-PROPERTIES; CEO2; NANOCRYSTALS; REDUCED CEO2; X-RAY; DIOXIDE;

D O I：

10.1021/jp409989y

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：

Ceria nanorods were investigated using in situ Raman and FTIR spectroscopies for CO adsorption and subsequent reaction with water at 200 and 350 degrees C. The involvement of defects in ceria nanorods during CO adsorption and reaction with H2O is dependent on the temperature. At 200 degrees C, most of the carbonate and formate species formed in CO do not involve the formation of defects, while at 350 degrees C all of the carbonates and formates formed can be correlated to the formation of defects (15% by formates and 85% by mono/bidentate carbonates). Finally, at 350 degrees C very stable polydentate carbonates are formed that do not induce defects and cannot be regenerated with water.

引用

页码：4131 / 4142

页数：12

共 59 条

[1] Exposed Surfaces on Shape-Controlled Ceria Nanoparticles Revealed through AC-TEM and Water-Gas Shift Reactivity [J].

Agarwal, Shilpa ;

Lefferts, Leon ;

Mojet, Barbara L. ;

Ligthart, D. A. J. Michel ;

Hensen, Emiel J. M. ;

Mitchell, David R. G. ;

Erasmus, Willem J. ;

Anderson, Bruce G. ;

Olivier, Ezra J. ;

Neethling, Johannes H. ;

Datye, Abhaya K. .

CHEMSUSCHEM, 2013, 6 (10) :1898-1906

[2] Ceria Nanocatalysts: Shape Dependent Reactivity and Formation of OH [J].

Agarwal, Shilpa ;

Lefferts, Leon ;

Mojet, Barbara L. .

CHEMCATCHEM, 2013, 5 (02) :479-489

[3] The CO2-CeO2 interaction and its role in the CeO2 reactivity [J].

Appel, LG ;

Eon, JG ;

Schmal, M .

CATALYSIS LETTERS, 1998, 56 (04) :199-202

[4] An FTIR study of surface ceria hydroxy groups during a redox process with H-2 [J].

Badri, A ;

Binet, C ;

Lavalley, JC .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1996, 92 (23) :4669-4673

[5] INFRARED INTENSITIES OF LIQUIDS .5. OPTICAL AND DIELECTRIC-CONSTANTS, INTEGRATED-INTENSITIES, AND DIPOLE-MOMENT DERIVATIVES OF H2O AND D2O AT 22-DEGREES-C [J].

BERTIE, JE ;

AHMED, MK ;

EYSEL, HH .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (06) :2210-2218

[6] IR STUDY OF CARBON-DIOXIDE AND CARBON-MONOXIDE ADSORPTION ONTO CERIA - EFFECT OF THE REDUCTION STATE OF CERIA [J].

BINET, C ;

JADI, A ;

LAVALLEY, JC .

JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1992, 89 (09) :1779-1797

[7] IR study of polycrystalline ceria properties in oxidised and reduced states [J].

Binet, C ;

Daturi, M ;

Lavalley, JC .

CATALYSIS TODAY, 1999, 50 (02) :207-225

[8] FTIR STUDY OF CARBON-MONOXIDE ADSORPTION ON CERIA - CO2(2-) CARBONITE DIANION ADSORBED SPECIES [J].

BINET, C ;

BADRI, A ;

BOUTONNETKIZLING, M ;

LAVALLEY, JC .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (07) :1023-1028

[9] A SPECTROSCOPIC CHARACTERIZATION OF THE REDUCTION OF CERIA FROM ELECTRONIC-TRANSITIONS OF INTRINSIC POINT-DEFECTS [J].

BINET, C ;

BADRI, A ;

LAVALLEY, JC .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (25) :6392-6398

[10] IR STUDIES OF CERIUM DIOXIDE - INFLUENCE OF IMPURITIES AND DEFECTS [J].

BOZONVERDURAZ, F ;

BENSALEM, A .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (04) :653-657

← 1 2 3 4 5 6 →