التفاصيل البيبلوغرافية
| العنوان: |
Ammonia-regulated CuCo2O4 spinel oxide embedded in Y zeolite for methanol oxidation. |
| المؤلفون: |
Zhang, Xiangwen1 (AUTHOR), Liu, Dekai1 (AUTHOR), Zhang, Mingmei2 (AUTHOR), Sun, Lu1,3 (AUTHOR) lusun@nankai.edu.cn, Toyao, Takashi4 (AUTHOR), He, Chenxi4 (AUTHOR), Chen, Duotian4 (AUTHOR), Liu, Weiwei3 (AUTHOR), Matsuoka, Masaya5 (AUTHOR), Sun, Han1 (AUTHOR) sunhan@mail.nankai.edu.cn, Wang, Xin2 (AUTHOR), Chen, Haijun1 (AUTHOR) chenhj@nankai.edu.cn |
| المصدر: |
Chemical Engineering Journal. May2024, Vol. 487, pN.PAG-N.PAG. 1p. |
| مصطلحات موضوعية: |
*ZEOLITE Y, *OXIDATION of methanol, *SPINEL, *PRECIOUS metals, *OXIDES, *ZEOLITES, *METHANOL |
| مستخلص: |
[Display omitted] • CuCo 2 O 4 spinel oxides nanoparticles embedded on Y zeolite were synthesized. • NH 3 -reduction and re-oxidation treatments facilitate the formation of CuCo 2 O 4. • The confined CuCo 2 O 4 exhibits excellent catalytic oxidation activity and stability. Morphology-controlled synthesis with a tailor-made structure is a promising approach to enhance the catalytic properties of inexpensive spinel oxides as a viable alternative to noble metals. AB 2 O 4 spinel oxides, particularly, have garnered significant attention in mitigating volatile organic compounds (VOCs) emissions. The catalytic performance of these oxides can be improved through the modification of tetrahedrally coordinated A sites. In this study, we present a novel strategy for the preparation of CuCo 2 O 4 spinel oxide nanoparticles embedded on Y zeolite. This involves the co-loading of Cu and Co oxides on Y zeolite, followed by successive treatment with NH 3 -reduction and re-oxidation. The resulting morphology-confined CuCo 2 O 4 spinel oxides exhibit significantly higher catalytic activities and stabilities for the oxidation of CH 3 OH compared to their unrestrained counterparts. Our exploration into the in-situ formation of spinel oxides on Y zeolite, along with an investigation into their catalytic oxidation mechanism, lays the foundation for the rational design of non-noble metal oxide VOC catalysts. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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