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Hierarchical Fe-modified MgAl2O4 as Ni-catalyst support for methane dry reforming

(2020) CATALYSIS SCIENCE & TECHNOLOGY. 10(20). p.6987-7001
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Abstract
MgAl(2)O(4)and its Fe-modified analogue (MgFexAl2-xO4) were synthesized as supports with a nanostructure by a hydrothermal process, and employed as supports for Ni catalysts in methane dry reforming (DRM). All prepared supports had a hierarchical architecture displaying clusters of nanosheets. Fe-modified MgAl(2)O(4)was characterized by X-ray diffraction (XRD), N(2)adsorption-desorption, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and temperature-programmed desorption (TPD). The activity and stability of the catalysts with a hierarchical support were tested in DRM at 750 degrees C, 111.3 kPa, and a CH4 : CO(2)ratio of 1. The Ni/MgAl(2)O(4)sample with a 0.5 Mg : Al molar ratio showed higher activity than Ni on common MgAl(2)O(4)due to the larger surface area and stronger metal interaction with the hierarchical support. Besides, a series of Ni/MgFe(x)Al(2-x)O(4)catalysts with an Fe/Ni ratio between 0 and 0.5 was synthesized and reduced, yielding a supported Ni-Fe alloy. The structure evolution of the Ni/MgFe(x)Al(2-x)O(4)catalyst during H(2)temperature-programmed reduction (H-2-TPR), CO(2)temperature-programmed oxidation (CO2-TPO), and dry reforming was investigated byin situXRD. For Fe/Ni <= 0.05, a Ni-Fe surface alloy is obtained with high catalyst activity, efficient control of carbon deposition and superior regeneration ability. Ni supported on hierarchical Fe-modified MgAl(2)O(4)proves to be a promising and effective catalyst for methane dry reforming.
Keywords
CARBON-DIOXIDE, COKE FORMATION, STABILITY, SYNGAS, NANOPARTICLES, PERFORMANCE, CONVERSION, PROMOTERS, HYDROGEN, MGAL2O4

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MLA
Wang, Hao, et al. “Hierarchical Fe-Modified MgAl2O4 as Ni-Catalyst Support for Methane Dry Reforming.” CATALYSIS SCIENCE & TECHNOLOGY, vol. 10, no. 20, 2020, pp. 6987–7001, doi:10.1039/d0cy01119c.
APA
Wang, H., Nadadur Veeraraghavan Srinath, Poelman, H., Detavernier, C., Li, P., Marin, G., & Galvita, V. (2020). Hierarchical Fe-modified MgAl2O4 as Ni-catalyst support for methane dry reforming. CATALYSIS SCIENCE & TECHNOLOGY, 10(20), 6987–7001. https://doi.org/10.1039/d0cy01119c
Chicago author-date
Wang, Hao, Nadadur Veeraraghavan Srinath, Hilde Poelman, Christophe Detavernier, Ping Li, Guy Marin, and Vladimir Galvita. 2020. “Hierarchical Fe-Modified MgAl2O4 as Ni-Catalyst Support for Methane Dry Reforming.” CATALYSIS SCIENCE & TECHNOLOGY 10 (20): 6987–7001. https://doi.org/10.1039/d0cy01119c.
Chicago author-date (all authors)
Wang, Hao, Nadadur Veeraraghavan Srinath, Hilde Poelman, Christophe Detavernier, Ping Li, Guy Marin, and Vladimir Galvita. 2020. “Hierarchical Fe-Modified MgAl2O4 as Ni-Catalyst Support for Methane Dry Reforming.” CATALYSIS SCIENCE & TECHNOLOGY 10 (20): 6987–7001. doi:10.1039/d0cy01119c.
Vancouver
1.
Wang H, Nadadur Veeraraghavan Srinath, Poelman H, Detavernier C, Li P, Marin G, et al. Hierarchical Fe-modified MgAl2O4 as Ni-catalyst support for methane dry reforming. CATALYSIS SCIENCE & TECHNOLOGY. 2020;10(20):6987–7001.
IEEE
[1]
H. Wang et al., “Hierarchical Fe-modified MgAl2O4 as Ni-catalyst support for methane dry reforming,” CATALYSIS SCIENCE & TECHNOLOGY, vol. 10, no. 20, pp. 6987–7001, 2020.
@article{8678381,
  abstract     = {{MgAl(2)O(4)and its Fe-modified analogue (MgFexAl2-xO4) were synthesized as supports with a nanostructure by a hydrothermal process, and employed as supports for Ni catalysts in methane dry reforming (DRM). All prepared supports had a hierarchical architecture displaying clusters of nanosheets. Fe-modified MgAl(2)O(4)was characterized by X-ray diffraction (XRD), N(2)adsorption-desorption, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), and temperature-programmed desorption (TPD). The activity and stability of the catalysts with a hierarchical support were tested in DRM at 750 degrees C, 111.3 kPa, and a CH4 : CO(2)ratio of 1. The Ni/MgAl(2)O(4)sample with a 0.5 Mg : Al molar ratio showed higher activity than Ni on common MgAl(2)O(4)due to the larger surface area and stronger metal interaction with the hierarchical support. Besides, a series of Ni/MgFe(x)Al(2-x)O(4)catalysts with an Fe/Ni ratio between 0 and 0.5 was synthesized and reduced, yielding a supported Ni-Fe alloy. The structure evolution of the Ni/MgFe(x)Al(2-x)O(4)catalyst during H(2)temperature-programmed reduction (H-2-TPR), CO(2)temperature-programmed oxidation (CO2-TPO), and dry reforming was investigated byin situXRD. For Fe/Ni <= 0.05, a Ni-Fe surface alloy is obtained with high catalyst activity, efficient control of carbon deposition and superior regeneration ability. Ni supported on hierarchical Fe-modified MgAl(2)O(4)proves to be a promising and effective catalyst for methane dry reforming.}},
  author       = {{Wang, Hao and Nadadur Veeraraghavan Srinath and Poelman, Hilde and Detavernier, Christophe and Li, Ping and Marin, Guy and Galvita, Vladimir}},
  issn         = {{2044-4753}},
  journal      = {{CATALYSIS SCIENCE & TECHNOLOGY}},
  keywords     = {{CARBON-DIOXIDE,COKE FORMATION,STABILITY,SYNGAS,NANOPARTICLES,PERFORMANCE,CONVERSION,PROMOTERS,HYDROGEN,MGAL2O4}},
  language     = {{eng}},
  number       = {{20}},
  pages        = {{6987--7001}},
  title        = {{Hierarchical Fe-modified MgAl2O4 as Ni-catalyst support for methane dry reforming}},
  url          = {{http://dx.doi.org/10.1039/d0cy01119c}},
  volume       = {{10}},
  year         = {{2020}},
}

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