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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02304
|2 doi
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|a eng
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|a Al-Fatesh, Ahmed S
|e verfasserin
|4 aut
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|a Sr Promoted Ni/W-Zr Catalysts for Highly Efficient CO2 Methanation
|b Unveiling the Role of Surface Basicity
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 16.12.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This study explores the employment of CO2 methanation for carbon dioxide utilization and global warming mitigation. For the first time, in this work, we combine the interesting properties of the WO3-ZrO2 support and the benefits of Sr to improve the performance of Ni-based catalysts in this reaction. Sr loading on 5Ni/W-Zr samples is increased to 3 wt %, resulting in improved surface basicity through strong basic site formation. After 300 min, the 5Ni + 3Sr/W-Zr catalyst exhibits high activity and stability, achieving 90% CO2 conversion and 82% CH4 yield compared to 62 and 57% on 5Ni/W-Zr. Limited sintering and absence of carbon deposits are confirmed by temperature-programmed oxidation, XRD, Raman, and TEM analyses at 350 °C for 300 min. Sr promotion creates additional CO2 adsorption and conversion sites, enhancing the catalytic performance
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|a Journal Article
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|a Kaydouh, Marie-Nour
|e verfasserin
|4 aut
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|a Ahmed, Hamid
|e verfasserin
|4 aut
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|a Ibrahim, Ahmed A
|e verfasserin
|4 aut
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|a Alotibi, Mohammed F
|e verfasserin
|4 aut
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|a Osman, Ahmed I
|e verfasserin
|4 aut
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|a El Hassan, Nissrine
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 49 vom: 12. Dez., Seite 17723-17732
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|x 1520-5827
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|g volume:39
|g year:2023
|g number:49
|g day:12
|g month:12
|g pages:17723-17732
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02304
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