A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics
This work studied the influence of textural characteristics of CNTs on catalytic performance of Ni/CNTs for CO2 methanation. The CNTs supports were prepared by chemical vapor deposition method using Ni/MgO catalysts, and acetonitrile and ethanol were used as carbon sources, respectively. The Ni/CNTs...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Chemical Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/795386 |
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| _version_ | 1832559224871190528 |
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| author | Yanyan Feng Wen Yang Wei Chu |
| author_facet | Yanyan Feng Wen Yang Wei Chu |
| author_sort | Yanyan Feng |
| collection | DOAJ |
| description | This work studied the influence of textural characteristics of CNTs on catalytic performance of Ni/CNTs for CO2 methanation. The CNTs supports were prepared by chemical vapor deposition method using Ni/MgO catalysts, and acetonitrile and ethanol were used as carbon sources, respectively. The Ni/CNTs catalysts were prepared via impregnation method and characterized by X-ray diffraction (XRD), N2 adsorption/desorption, and temperature-programmed reduction (H2-TPR) techniques. The results indicated that the textural characteristics of CNTs supports significantly impacted on the catalytic performance of Ni/CNTs. The catalyst Ni/CNTs-E (CNTs using ethanol as carbon source) had good reducibility, high specific surface area, and moderate defects, resulting in higher CO2 conversion and CH4 yield, followed by Ni/CNTs-C (commercial CNTs) and Ni/CNTs-A (CNTs using acetonitrile as carbon source). Based on Arrhenius formula, activation energies of the catalysts were calculated and were found decreased for Ni/CNTs-A and Ni/CNTs-E. |
| format | Article |
| id | doaj-art-8e82c10d39834dd4b056269551891536 |
| institution | Kabale University |
| issn | 1687-806X 1687-8078 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Chemical Engineering |
| spelling | doaj-art-8e82c10d39834dd4b0562695518915362025-02-03T01:30:30ZengWileyInternational Journal of Chemical Engineering1687-806X1687-80782015-01-01201510.1155/2015/795386795386A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural CharacteristicsYanyan Feng0Wen Yang1Wei Chu2Department of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541006, ChinaDepartment of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541006, ChinaDepartment of Chemical Engineering, Sichuan University, Chengdu 610065, ChinaThis work studied the influence of textural characteristics of CNTs on catalytic performance of Ni/CNTs for CO2 methanation. The CNTs supports were prepared by chemical vapor deposition method using Ni/MgO catalysts, and acetonitrile and ethanol were used as carbon sources, respectively. The Ni/CNTs catalysts were prepared via impregnation method and characterized by X-ray diffraction (XRD), N2 adsorption/desorption, and temperature-programmed reduction (H2-TPR) techniques. The results indicated that the textural characteristics of CNTs supports significantly impacted on the catalytic performance of Ni/CNTs. The catalyst Ni/CNTs-E (CNTs using ethanol as carbon source) had good reducibility, high specific surface area, and moderate defects, resulting in higher CO2 conversion and CH4 yield, followed by Ni/CNTs-C (commercial CNTs) and Ni/CNTs-A (CNTs using acetonitrile as carbon source). Based on Arrhenius formula, activation energies of the catalysts were calculated and were found decreased for Ni/CNTs-A and Ni/CNTs-E.http://dx.doi.org/10.1155/2015/795386 |
| spellingShingle | Yanyan Feng Wen Yang Wei Chu A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics International Journal of Chemical Engineering |
| title | A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics |
| title_full | A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics |
| title_fullStr | A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics |
| title_full_unstemmed | A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics |
| title_short | A Study of CO2 Methanation over Ni-Based Catalysts Supported by CNTs with Various Textural Characteristics |
| title_sort | study of co2 methanation over ni based catalysts supported by cnts with various textural characteristics |
| url | http://dx.doi.org/10.1155/2015/795386 |
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