|
1
|
Huang C, Shan W, Lian Z, Zhang Y, He H. Recent advances in three-way catalysts of natural gas vehicles. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01320j] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents recent advances in TWCs for NGVs, particularly for Pd-based catalysts and potential alternatives.
Collapse
Affiliation(s)
- Cenyan Huang
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Wenpo Shan
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Zhihua Lian
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Yan Zhang
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| | - Hong He
- Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion
- Institute of Urban Environment
- Institute of Urban Environment
- Chinese Academy of Sciences
- Xiamen 361021
| |
Collapse
|
|
2
|
Ouyang J, Zhao Z, Yang H, He J, Suib SL. Surface redox characters and synergetic catalytic properties of macroporous ceria-zirconia solid solutions. JOURNAL OF HAZARDOUS MATERIALS 2019; 366:54-64. [PMID: 30502573 DOI: 10.1016/j.jhazmat.2018.11.083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 10/26/2018] [Accepted: 11/21/2018] [Indexed: 06/09/2023]
Abstract
Macroporous CeO2-ZrO2 (CZ) solid solutions with gradually changing ceria content were prepared through the EISA method. Pore sizes of the samples are about 100 nm-1 μm and pore walls are 100 nm-1.5 μm. The surface and near surface reduction bands of Ce4+ below 600 °C were maximized for the Ce0.5Zr0.5O2 sample (C5) according to the quantitative de-convolution to the acquired TPR curves. The area percentage of the O2-2p6 → Ce3+3d94f2 electronic transition band on XPS spectra, which related to the concentration of the Ce3+, was found to be a function of the ceria content. The oxygen storage capacity showed a positive relationship with the chemical compositions. Redox reactions below 600 °C play a key role in determining the reduction performances of ceria based TWCs. Three-way catalytic performances of the Pd + Rh + Pt /C5 sample showed an ignition temperature for CO and NOx at about 240 °C, and finished before 300 °C. The ignition of C3H8 started at 270 °C while finished at differed samples. The maximum catalytic efficiencies of CO, NOx, and C3H8 on C5 sample were revealed to 100%, 98%, and 97%, respectively. The performances showed that porous CZ solid solutions are suitable for high performance catalytic applications.
Collapse
Affiliation(s)
- Jing Ouyang
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Hunan Key Lab of Mineral Materials and Application, Central South University, Changsha 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Changsha 410083, China; Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, USA.
| | - Zai Zhao
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Hunan Key Lab of Mineral Materials and Application, Central South University, Changsha 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Changsha 410083, China
| | - Huaming Yang
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; Hunan Key Lab of Mineral Materials and Application, Central South University, Changsha 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Changsha 410083, China
| | - Junkai He
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, USA
| | - Steven L Suib
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3060, USA.
| |
Collapse
|
|
3
|
Chen J, Hu W, Huang F, Wu Y, Yuan S, Zhong L, Chen Y. P promotion on the performance of Pd-based catalyst for emission control of natural gas driven vehicles. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.05.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
|
4
|
Catalytic performance of a Pt-Rh/CeO 2 -ZrO 2 -La 2 O 3 -Nd 2 O 3 three-way compress nature gas catalyst prepared by a modified double-solvent method. J RARE EARTH 2017. [DOI: 10.1016/s1002-0721(17)60987-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
|
5
|
Hu W, Li GX, Chen JJ, Huang FJ, Wu Y, Yuan SD, Zhong L, Chen YQ. Enhanced catalytic performance of a PdO catalyst prepared via a two-step method of in situ reduction–oxidation. Chem Commun (Camb) 2017; 53:6160-6163. [DOI: 10.1039/c7cc01997a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Pd-based catalyst prepared by a controllable two-step method of in situ reduction–oxidation showed significantly enhanced activity and selectivity.
Collapse
Affiliation(s)
- Wei Hu
- College of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Guang-Xia Li
- College of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Jian-Jun Chen
- Key Laboratory of Green Chemistry and Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Fu-Jin Huang
- College of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Yang Wu
- Institute of New Energy and Low-Carbon Technology
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Shan-Dong Yuan
- Institute of New Energy and Low-Carbon Technology
- Sichuan University
- Chengdu 610064
- P. R. China
| | - Lin Zhong
- College of Chemical Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Yao-Qiang Chen
- Key Laboratory of Green Chemistry and Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- P. R. China
| |
Collapse
|