The controlled engineering of surface oxygen defects on Bi2Zr2O7 compounds for catalytic soot combustion by adjusting the preparation methods

Literature Information

Publication Date 2023-11-24
DOI 10.1039/D3CP04104B
Impact Factor 3.676
Authors

Shijing Zhang, Xiaohui Feng, Zekai Xu, Yuting Li, Ping Wang, Jiating Shen, Junwei Xu, Xianglan Xu, Xiuzhong Fang, Xiang Wang


View Original

Abstract

The quantity of surface oxygen vacancies/defects is critical to promote the reactivity of metal oxide catalysts. Therefore, for the controlled engineering of Bi2Zr2O7 with rich surface defects for soot combustion, four different methods have been adopted. Bi2Zr2O7 compounds with a defective fluorite phase but with varied surface vacancy concentrations have been successfully synthesized by various methods. The best catalyst (Bi2Zr2O7-CP) was fabricated by a facile co-precipitation method. Both O2− and O22− were the active surface sites whose number positively correlated to the number of surface oxygen vacancies and determined the activity. Moreover, a sample with more surface vacancies usually had weaker Zr–O bonds, which could be the intrinsic factor to enhance the activity. In addition, a novel and simple method has been developed to accurately titrate the absolute amount of soot reactive oxygen sites and calculate the TOF values. In conclusion, by optimizing the preparation methods, Bi2Zr2O7 catalysts with rich surface defects can be tuned, which may help in designing more applicable soot oxidation catalysts.

Related Literature

Small angle scattering of Ag–1 wt.% Mg alloys internally oxidized at high temperatures: a model of interacting spherical clusters

Pietro Riello, Stefano Polizzi, Giuliano Fagherazzi, Tiziano Finotto, Sergio Ceresara

2001-07-05 Paper

DOI: 10.1039/B102385N

Antimony and bismuth oxide cluster ions

Jörg Opitz-Coutureau, André Fielicke, Bernhard Kaiser, Klaus Rademann

2001-07-02 Paper

DOI: 10.1039/B103009B

Ultrafast dynamics of the 11Bu-state of 1,3-butadiene after excitation at 204 nm

Frank Assenmacher, Michael Gutmann, Georg Hohlneicher, Volker Stert, Wolfgang Radloff

2001-07-02 Communication

DOI: 10.1039/B104013H

IR spectral and theoretical characterization of intramolecular hydrogen bonds closing five-membered rings

Hanna Rostkowska, Maciej J. Nowak, Leszek Lapinski, Ludwik Adamowicz

2001-07-06 Paper

DOI: 10.1039/B102464G

Dielectric properties of dehydrated NaA zeolite, analyses and calculation of dielectric spectra

Tatsuo Ohgushi, Kazushi Ishimaru

2001-07-12 Paper

DOI: 10.1039/B102331B

Ordered melts of block copolymers of ethylene oxide and 1,2-butylene oxide

Anthony J. Ryan, Shao-Min Mai, J. Patrick A. Fairclough, Ian W. Hamley, Colin Booth

2001-07-11 Invited Article

DOI: 10.1039/B102784K

Mass-dependent and mass-independent isotope effects of zinc in chemical exchange reactions using liquid chromatography with a cryptand stationary phase

Toshiyuki Fujii, Takafumi Hirata, Yuji Shibahara, Kazushige Nishizawa

2001-07-06 Paper

DOI: 10.1039/B102823P

Pressure and temperature dependence of the gas-phase reaction of silylene with dimethyl ether

Ula N. Alexander, Keith D. King, Warren D. Lawrance

2001-06-29 Paper

DOI: 10.1039/B100068N

You might also like

Compound Q&A

Are there alternatives to 1-(4-Chlorophenyl)-N-hydroxymethanimine (CAS: 3848-36-0) in synthesis?

When considering alternatives to 1-(4-Chlorophenyl)-N-hydroxymethanimine (CAS: 3...

3848-36-01-(4-Chlorophenyl)-N...
Compound Q&A

How is 3-(4-Bromophenyl)-5-(2-fluorophenyl)-1,2,4-oxadiazole (CAS: 419553-16-5) typically synthesized?

3-(4-Bromophenyl)-5-(2-fluorophenyl)-1,2,4-oxadiazole is synthesized through a m...

419553-16-53-(4-Bromophenyl)-5-...
Compound Q&A

How is 5-Chloro-2-(4-chlorophenyl)-4-methyl-6-[3-(1-piperidinyl)propoxy]pyrimidine (CAS: 1639220-19-1) typically synthesized?

5-Chloro-2-(4-chlorophenyl)-4-methyl-6-[3-(1-piperidinyl)propoxy]pyrimidine (CAS...

1639220-19-15-Chloro-2-(4-chloro...
Compound Q&A

What industries use 2-Chloro-4-(difluoromethoxy)pyridine (CAS: 1206978-15-5)?

2-Chloro-4-(difluoromethoxy)pyridine is used in the pharmaceutical industry for ...

1206978-15-52-Chloro-4-(difluoro...
Compound Q&A

What regulatory guidelines apply to 3-Chloro-6-methylpyridazine (CAS: 1121-79-5)?

3-Chloro-6-methylpyridazine (CAS: 1121-79-5) is classified under the Globally Ha...

1121-79-53-Chloro-6-methylpyr...
Compound Q&A

Are there alternatives to Methyl 4,5-dimethyl-2-nitrobenzoate in synthesis?

Several alternatives can be used in the synthesis of Methyl 4,5-dimethyl-2-nitro...

90922-74-0Methyl 4,5-dimethyl-...
Compound Q&A

Are there alternatives to (2E,2'E)-3,3'-(1,4-Phenylene)bisacrylaldehyde in synthesis?

Alternatives to (2E,2'E)-3,3'-(1,4-Phenylene)bisacrylaldehyde include other acry...

63405-68-5(2E,2'E)-3,3'-(1,4-P...
Compound Q&A

What is 3-Amino-5-chloropyridin-2-ol hydrochloride (CAS: 1261906-29-9)?

3-Amino-5-chloropyridin-2-ol hydrochloride is an organic compound with the CAS n...

1261906-29-93-Amino-5-chloropyri...
Compound Q&A

What precautions should be taken when handling 6,7-Difluoro-2,3-dihydro-4H-chromen-4-one (CAS: 1092349-93-3)?

When handling 6,7-Difluoro-2,3-dihydro-4H-chromen-4-one, it is essential to wear...

1092349-93-36,7-Difluoro-2,3-dih...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.