Academic Journal
Facile Synthesis Method of Zeolite NaY and Zeolite NaY-Supported Ni Catalyst with High Catalytic Activity for the Conversion of CO 2 to CH 4
| العنوان: | Facile Synthesis Method of Zeolite NaY and Zeolite NaY-Supported Ni Catalyst with High Catalytic Activity for the Conversion of CO 2 to CH 4 |
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| المؤلفون: | Somkiat Krachuamram, Pinit Kidkhunthod, Yingyot Poo-arporn, Kingkaew Chayakul Chanapattharapol |
| المصدر: | ChemEngineering, Vol 8, Iss 2, p 28 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | facile zeolite synthesis, Ni/zeolite NaY, CO 2 methanation, Chemistry, QD1-999 |
| الوصف: | In this work, the facile reflux method was used as a crystallization procedure for zeolite NaY synthesis. The zeolite mixture was aged for 7 days and then refluxed for crystallization at 100 °C for 12 h. The synthesized zeolite NaY was impregnated with 10, 20 and 30 wt%Ni solution to use as a catalyst for CO 2 methanation. The 30 wt% of Ni on the zeolite NaY catalyst showed the highest CO 2 methanation catalytic activity, with almost 100% CH 4 selectivity. This can be explained by an appropriate H 2 and CO 2 adsorption amount on a catalyst surface being able to facilitate the surface reaction between them and further react to form products. The oxidation state of Ni and the stability of the catalyst were monitored by time-resolved X-ray absorption spectroscopy. The oxidation state of Ni 2+ was reduced during the catalyst reduction prior to the CO 2 methanation and it was completely reduced to Ni° at 600 °C. During CO 2 methanation, Ni° remained unchanged. In addition, the stability test of the catalyst was conducted by exposing the catalyst to a fluctuating condition (CO 2 + H 2 and only CO 2 ). The oxidation state of Ni° remained unchanged under the fluctuating condition. This indicated that the Ni/zeolite catalyst has high stability, which can be attributed to an appropriate binding strength between Ni and the zeolite support. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2305-7084 |
| Relation: | https://www.mdpi.com/2305-7084/8/2/28; https://doaj.org/toc/2305-7084; https://doaj.org/article/2c305a436d934dbea466d8924c5095f5 |
| DOI: | 10.3390/chemengineering8020028 |
| الاتاحة: | https://doi.org/10.3390/chemengineering8020028 https://doaj.org/article/2c305a436d934dbea466d8924c5095f5 |
| رقم الانضمام: | edsbas.57BE2A14 |
| قاعدة البيانات: | BASE |
| تدمد: | 23057084 |
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| DOI: | 10.3390/chemengineering8020028 |