1
|
Zedan AF, AlJaber AS, El-Shall MS. Facile Microwave Synthesis of Hierarchical Porous Copper Oxide and Its Catalytic Activity and Kinetics for Carbon Monoxide Oxidation. ACS OMEGA 2022; 7:44021-44032. [PMID: 36506176 PMCID: PMC9730479 DOI: 10.1021/acsomega.2c05399] [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: 08/22/2022] [Accepted: 11/09/2022] [Indexed: 06/17/2023]
Abstract
The synthesis of copper oxide (CuO)-based nanomaterials has received a tremendous deal of interest in recent years. Particularly, the design and development of novel CuO structures with improved physical and chemical properties have attracted immense attention, especially for catalysis applications. We report on a rational, rapid, and surfactant-free microwave synthesis (MWS) of hierarchical porous copper oxide (HP-CuO) with a three-dimensional (3D) sponge-like topology using an MWS reactor. The activity of the microwave (MW)-synthesized HP-CuO catalysts for carbon monoxide (CO) oxidation was studied and compared to CuO prepared by the conventional heating method (CHM). Results showed that HP-CuO catalysts prepared by MWS for 10 and 30 min surpassed the CuO catalyst prepared by CHM, exhibiting T 80 of 98 and 115 °C, respectively, as compared to 185 °C of CuO prepared by CHM (T80 is the temperature corresponding to 80% CO conversion). In addition, the MW-synthesized HP-CuO catalysts outperformed the CHM-synthesized CuO, achieving a 100% CO conversion at 150 °C compared to 240 °C in the case of CuO prepared by CHM. Interestingly, the HP-CuO catalyst expressed workable CO conversion kinetics with a reaction rate of c.a.35 μmol s-1 g-1 at 150 °C and apparent activation energy (E a) of 82 kJ mol-1. The HP-CuO catalyst showed excellent cycling and long-term stabilities for CO oxidation up to 4 cycles and 72 h on the stream, respectively. The enhanced catalytic activity and stability of the HP-CuO catalyst appear to result from the unique topological and structural features of HP-CuO, which were revealed by SEM, XRD, Raman, BET, TGA, XPS, and TPR techniques.
Collapse
Affiliation(s)
- Abdallah F. Zedan
- National
Institute of Laser Enhanced Sciences, Cairo
University, Giza12613, Egypt
- Department
of Chemistry, Virginia Commonwealth University, Richmond, Virginia23284, United States
| | - Amina S. AlJaber
- Department
of Chemistry and Earth Sciences, Qatar University, Doha2713, Qatar
| | - M. Samy El-Shall
- Department
of Chemistry, Virginia Commonwealth University, Richmond, Virginia23284, United States
| |
Collapse
|
2
|
Li H, Xie B, Hu C, Liu M, Xiao D. Reduced graphene oxide-supported CuO nanoparticles with synergistically enhanced electrocatalytic activity for nitric oxide sensing. Analyst 2022; 147:5187-5193. [DOI: 10.1039/d2an01134d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This work reports a NO electrochemical sensor based on rGO/CuO composites with excellent electrochemical performance.
Collapse
Affiliation(s)
- Hongmei Li
- College of Chemical, Sichuan University, Chengdu 610064, China
| | - Bo Xie
- College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Chunqiong Hu
- College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| | - Mengyao Liu
- College of Chemical, Sichuan University, Chengdu 610064, China
| | - Dan Xiao
- College of Chemical, Sichuan University, Chengdu 610064, China
- College of Chemical Engineering, Sichuan University, Chengdu 610064, China
| |
Collapse
|
3
|
Zedan AF, Gaber S, AlJaber AS, Polychronopoulou K. CO Oxidation at Near-Ambient Temperatures over TiO 2-Supported Pd-Cu Catalysts: Promoting Effect of Pd-Cu Nanointerface and TiO 2 Morphology. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1675. [PMID: 34202357 PMCID: PMC8306827 DOI: 10.3390/nano11071675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/16/2021] [Accepted: 05/20/2021] [Indexed: 12/14/2022]
Abstract
Significant improvement of the catalytic activity of palladium-based catalysts toward carbon monoxide (CO) oxidation reaction has been achieved through alloying and using different support materials. This work demonstrates the promoting effects of the nanointerface and the morphological features of the support on the CO oxidation reaction using a Pd-Cu/TiO2 catalyst. Pd-Cu catalysts supported on TiO2 were synthesized with wet chemical approaches and their catalytic activities for CO oxidation reaction were evaluated. The physicochemical properties of the prepared catalysts were studied using standard characterization tools including SEM, EDX, XRD, XPS, and Raman. The effects of the nanointerface between Pd and Cu and the morphology of the TiO2 support were investigated using three different-shaped TiO2 nanoparticles, namely spheres, nanotubes, and nanowires. The Pd catalysts that are modified through nanointerfacing with Cu and supported on TiO2 nanowires demonstrated the highest CO oxidation rates, reaching 100% CO conversion at temperature regime down to near-ambient temperatures of ~45 °C, compared to 70 °C and 150 °C in the case of pure Pd and pure Cu counterpart catalysts on the same support, respectively. The optimized Pd-Cu/TiO2 nanowires nanostructured system could serve as efficient and durable catalyst for CO oxidation at near-ambient temperature.
Collapse
Affiliation(s)
- Abdallah F. Zedan
- National Institute of Laser Enhanced Science, Cairo University, Main Campus, Giza 12613, Egypt
| | - Safa Gaber
- Center for Catalysis and Separations, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates;
| | | | - Kyriaki Polychronopoulou
- Center for Catalysis and Separations, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates;
- Department of Mechanical Engineering, Khalifa University of Science and Technology, Abu Dhabi P.O. Box 127788, United Arab Emirates
| |
Collapse
|
4
|
Bi F, Zhang X, Xiang S, Wang Y. Effect of Pd loading on ZrO2 support resulting from pyrolysis of UiO-66: Application to CO oxidation. J Colloid Interface Sci 2020; 573:11-20. [DOI: 10.1016/j.jcis.2020.03.120] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/29/2020] [Accepted: 03/30/2020] [Indexed: 11/25/2022]
|
5
|
Çakıcı T. Investigation of Go: Cu nanoparticles produced by green synthesization method and fabrication of Au/Go:Cu/p-Si/al diode. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.126945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
6
|
Dhar S, Chakraborty P, Deka N, Prakash Mondal S. Broadband photosensing using p-type cupric oxide nanorods/conducting polymer Schottky junction. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2019.110578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
7
|
Hwang SH, Kim YK, Hong SH, Lim SK. Cu/CuO@ZnO Hollow Nanofiber Gas Sensor: Effect of Hollow Nanofiber Structure and P-N Junction on Operating Temperature and Sensitivity. SENSORS 2019; 19:s19143151. [PMID: 31319601 PMCID: PMC6679310 DOI: 10.3390/s19143151] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/05/2019] [Accepted: 07/15/2019] [Indexed: 12/02/2022]
Abstract
For the fast and easy detection of carbon monoxide (CO) gas, it was necessary to develop a CO gas sensor to operate in low temperatures. Herein, a novel Cu/CuO-decorated ZnO hollow nanofiber was prepared with the electrospinning, calcination, and photodeposition methods. In the presence of 100 ppm CO gas, the Cu/CuO-photodeposited ZnO hollow nanofiber (Cu/CuO@ZnO HNF) showed twice higher sensitivity than that of pure ZnO nanofiber at a relatively low working temperature of 300 °C. The hollow structure and p–n junction between Cu/CuO and ZnO would be considered to contribute to the enhancement of sensitivity to CO gas at 300 °C due to the improved specific surface area and efficient electron transfer.
Collapse
Affiliation(s)
- Sung-Ho Hwang
- Smart Textile Convergence Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
| | - Young Kwang Kim
- Smart Textile Convergence Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
| | - Seong Hui Hong
- Smart Textile Convergence Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
| | - Sang Kyoo Lim
- Smart Textile Convergence Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea.
| |
Collapse
|
8
|
Islam DA, Chakraborty A, Roy A, Das S, Acharya H. Fabrication of Graphene‐Oxide (GO)‐Supported Sheet‐Like CuO Nanostructures Derived from a Metal‐Organic‐Framework Template for High‐Performance Hybrid Supercapacitors. ChemistrySelect 2018. [DOI: 10.1002/slct.201802612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Dewan Azharul Islam
- Centre for Soft MattersDepartment of Chemistry Assam University Silchar- 788011, Assam India
| | - Anindita Chakraborty
- Centre for Soft MattersDepartment of Chemistry Assam University Silchar- 788011, Assam India
| | - Atanu Roy
- Department of Instrumentation ScienceJadavpur University Kolkata- 700032 India
| | - Sachindranath Das
- Department of Instrumentation ScienceJadavpur University Kolkata- 700032 India
| | - Himadri Acharya
- Centre for Soft MattersDepartment of Chemistry Assam University Silchar- 788011, Assam India
| |
Collapse
|
9
|
Devi MM, Dolai N, Sreehala S, Jaques YM, Mishra RSK, Galvao DS, Tiwary CS, Sharma S, Biswas K. Morphology controlled graphene-alloy nanoparticle hybrids with tunable carbon monoxide conversion to carbon dioxide. NANOSCALE 2018; 10:8840-8850. [PMID: 29714367 DOI: 10.1039/c7nr09688g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Selective oxidation of CO to CO2 using metallic or alloy nanoparticles as catalysts can solve two major problems of energy requirements and environmental pollution. Achieving 100% conversion efficiency at a lower temperature is a very important goal. This requires sustained efforts to design and develop novel supported catalysts containing alloy nanoparticles. In this regard, the decoration of nanoalloys with graphene, as a support for the catalyst, can provide a novel structure due to the synergic effect of the nanoalloys and graphene. Here, we demonstrate the effect of nano-PdPt (Palladium-Platinum) alloys having different morphologies on the catalytic efficiency for the selective oxidation of CO. Efforts were made to prepare different morphologies of PdPt alloy nanoparticles with the advantage of tuning the capping agent (PVP - polyvinyl pyrollidone) and decorating them on graphene sheets via the wet-chemical route. The catalytic activity of the G-PdPt hybrids with an urchin-like morphology has been found to be superior (higher % conversion at 135 °C lower) to that with a nanoflower morphology. The above experimental observations are further supported by molecular dynamics (MD) simulations.
Collapse
Affiliation(s)
- M Manolata Devi
- Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur-208016, India.
| | | | | | | | | | | | | | | | | |
Collapse
|
10
|
High and stable catalytic activity of Ag/Fe 2 O 3 catalysts derived from MOFs for CO oxidation. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.01.007] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
11
|
Zedan AF, Mohamed AT, El-Shall MS, AlQaradawi SY, AlJaber AS. Tailoring the reducibility and catalytic activity of CuO nanoparticles for low temperature CO oxidation. RSC Adv 2018; 8:19499-19511. [PMID: 35540972 PMCID: PMC9080671 DOI: 10.1039/c8ra03623c] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 05/21/2018] [Indexed: 11/25/2022] Open
Abstract
Copper oxide (CuO) nanoparticles have received considerable interest as active and inexpensive catalysts for various gas–solid reactions. The CuO reducibility and surface reactivity are of crucial importance for the high catalytic activity. Herein, we demonstrate that the reducibility and stability of CuO nanoparticles can be controlled and tailored for the high catalytic activity of CO oxidation. The synthesized CuO nanoparticles possessed enhanced reducibility in CO atmosphere at lower reduction temperature of 126 °C compared to 284 °C for that of reference CuO particles. Moreover, the CuO catalysts with tailored reducibility demonstrated a reaction rate of 35 μmol s−1 g−1 and an apparent activation energy of 75 kJ mol−1. Furthermore, the tailored catalysts exhibited excellent long-term stability for CO oxidation for up to 48 h on stream. These readily-reducible CuO nanoparticles could serve as efficient, inexpensive and durable catalysts for CO oxidation at low temperatures. Copper oxide (CuO) nanoparticles of tailored reducibility could be used as inexpensive, efficient and durable catalysts for CO oxidation at low temperature.![]()
Collapse
Affiliation(s)
- Abdallah F. Zedan
- Department of Chemistry and Earth Sciences
- Qatar University
- Doha 2713
- Qatar
- National Institute of Laser Enhanced Science
| | - Assem T. Mohamed
- Department of Chemistry and Earth Sciences
- Qatar University
- Doha 2713
- Qatar
| | - M. Samy El-Shall
- Department of Chemistry
- Virginia Commonwealth University
- Richmond
- USA
| | | | - Amina S. AlJaber
- Department of Chemistry and Earth Sciences
- Qatar University
- Doha 2713
- Qatar
| |
Collapse
|
12
|
Rayati S, Khodaei E, Shokoohi S, Jafarian M, Elmi B, Wojtczak A. Cu-Schiff base complex grafted onto graphene oxide nanocomposite: Synthesis, crystal structure, electrochemical properties and catalytic activity in oxidation of olefins. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.07.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
13
|
Abstract
The intensive human activities in chemical industry and environmental purification urge the development of advanced protocols for green production and waste management. [...]
Collapse
|