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Almousawi M, Xie S, Kim D, Ye K, Zhang X, Loukusa J, Ma L, Ehrlich SN, Tetard L, Liu F. Hydroxyls on CeO 2 Support Promoting CuO/CeO 2 Catalyst for Efficient CO Oxidation and NO Reduction by CO. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:883-894. [PMID: 38134887 DOI: 10.1021/acs.est.3c06803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
Transition metal catalysts, such as copper oxide, are more attractive alternatives to noble metal catalysts for emission control due to their higher abundance, lower cost, and excellent catalytic activity. In this study, we report the preparation and application of a novel CuO/CeO2 catalyst using a hydroxyl-rich Ce(OH)x support for CO oxidation and NO reduction by CO. Compared to the catalyst prepared from a regular CeO2 support, the new CuO/CeO2 catalyst prepared from the OH-rich Ce(OH)x (CuO/CeO2-OH) showed significantly higher catalytic activity under different testing conditions. The effect of OH species in the CeO2 support on the catalytic performance and physicochemical properties of the CuO/CeO2 catalyst was characterized in detail. It is demonstrated that the abundant OH species enhanced the CuOx dispersion on CeO2, increased the CuOx-CeO2 interfaces and surface defects, promoted the oxygen activation and mobility, and boosted the NO adsorption and dissociation on CuO/CeO2-OH, thus contributing to its superior catalytic activity for both CO oxidation and NO reduction by CO. These results suggest that the OH-rich Ce(OH)x is a superior support for the preparation of highly efficient metal catalysts for different applications.
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Affiliation(s)
- Murtadha Almousawi
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Daekun Kim
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Kailong Ye
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Xing Zhang
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Jeremia Loukusa
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Lu Ma
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Steven N Ehrlich
- National Synchrotron Light Source II (NSLS-II), Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Laurene Tetard
- Department of Physics, NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
| | - Fudong Liu
- Department of Civil, Environmental, and Construction Engineering, Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida, Orlando, Florida 32816, United States
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Shen Z, Xing X, Wang S, Zheng Z, Lv M. Low temperature CO oxidation from sintering flue gas on CuO-CeO2/AC-Fe catalyst. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Jin W, Liu Y, Yu J, Guo X, Mao D. Effect of copper precursors on CO oxidation catalyzed by CuO-CeO2 prepared by solvothermal method. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Li F, Zhao B, Tan Y, Chen W, Tian M. Preparation of Al 2O 3–CeO 2 by Hydrothermal Method Supporting Copper Oxide for the Catalytic Oxidation of CO and C 3H 8. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fan Li
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou China
| | - Bing Zhao
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou China
| | - Yifeng Tan
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou China
| | - Wenlin Chen
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou China
| | - Mengkui Tian
- College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, Guizhou China
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Mao J, Qin L, Tian L, He L, Zhu Y, Meng Q, Zhang G. Hierarchical N-Doped CuO/Cu Composites Derived from Dual-Ligand Metal-Organic Frameworks as Cost-Effective Catalysts for Low-Temperature CO Oxidation. ACS OMEGA 2021; 6:29596-29608. [PMID: 34778631 PMCID: PMC8582074 DOI: 10.1021/acsomega.1c03877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Development of multi-ligand metal-organic frameworks (MOFs) and derived heteroatom-doped composites as efficient non-noble metal-based catalysts is highly desirable. However, rational design of these materials with controllable composition and structure remains a challenge. In this study, novel hierarchical N-doped CuO/Cu composites were synthesized by assembling dual-ligand MOFs via a solvent-induced coordination modulation/low-temperature pyrolysis method. Different from a homogeneous system, our heterogeneous nucleation strategy provided more flexible and cost-effective MOF production and offered efficient direction/shape-controlled synthesis, resulting in a faster reaction and more complete conversion. After pyrolysis, they further transformed to a unique metal/carbon matrix with regular morphology and, as a hot template, guided the orderly generation of metal oxides, eliminating sintering and agglomeration of metal oxides and initiating a synergistic effect between the N-doped metal oxide/metal and carbon matrix. The prepared N-doped CuO/Cu catalysts held unique water resistance and superior catalytic activity (100% CO conversion at 140 °C).
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Affiliation(s)
- Jingwen Mao
- Institute
of Oceanic and Environmental Chemical Engineering, Center for Membrane
and Water Science & Technology, State Key Lab Breeding Base of
Green Chemical Synthesis Technology, Zhejiang
University of Technology, Hangzhou 310014, P.R. China
| | - Lei Qin
- Institute
of Oceanic and Environmental Chemical Engineering, Center for Membrane
and Water Science & Technology, State Key Lab Breeding Base of
Green Chemical Synthesis Technology, Zhejiang
University of Technology, Hangzhou 310014, P.R. China
| | - Lin Tian
- Institute
of Oceanic and Environmental Chemical Engineering, Center for Membrane
and Water Science & Technology, State Key Lab Breeding Base of
Green Chemical Synthesis Technology, Zhejiang
University of Technology, Hangzhou 310014, P.R. China
| | - Lantian He
- Institute
of Oceanic and Environmental Chemical Engineering, Center for Membrane
and Water Science & Technology, State Key Lab Breeding Base of
Green Chemical Synthesis Technology, Zhejiang
University of Technology, Hangzhou 310014, P.R. China
| | - Yujie Zhu
- Institute
of Oceanic and Environmental Chemical Engineering, Center for Membrane
and Water Science & Technology, State Key Lab Breeding Base of
Green Chemical Synthesis Technology, Zhejiang
University of Technology, Hangzhou 310014, P.R. China
| | - Qin Meng
- College
of Chemical and Biochemical Engineering, State Key Laboratory of Chemical
Engineering, Zhejiang University, Hangzhou 310027, P.R. China
| | - Guoliang Zhang
- Institute
of Oceanic and Environmental Chemical Engineering, Center for Membrane
and Water Science & Technology, State Key Lab Breeding Base of
Green Chemical Synthesis Technology, Zhejiang
University of Technology, Hangzhou 310014, P.R. China
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