التفاصيل البيبلوغرافية
| العنوان: |
Visualizing Phase Evolution of Co 2 C for Efficient Fischer–Tropsch to Olefins |
| المؤلفون: |
Hong, Xiaoling, Zhao, Qiao, Chen, Yanping, Yu, Zhibin, Zhou, Mengzhen, Chen, Yan, Luo, Wenhao, Wang, Chang, Ta, Na, Li, Haitao, Ye, Runping, Zu, Xiaotao, Liu, Wei, Liu, Jian |
| المساهمون: |
National Natural Science Foundation of China, National Key Research and Development Program of China |
| المصدر: |
Advanced Materials ; ISSN 0935-9648 1521-4095 |
| بيانات النشر: |
Wiley |
| سنة النشر: |
2024 |
| المجموعة: |
Wiley Online Library (Open Access Articles via Crossref) |
| الوصف: |
Cobalt carbide (Co 2 C) possesses high catalytic efficiency Fischer–Tropsch synthesis (FTS), while the products selectivity appears sensitive to crystallography geometry. Since the Anderson–Schulz–Flory (ASF) distribution in FTS is broken through fabricating facetted Co 2 C nanocrystals, yet the underlying mechanism of Co 2 C crystallization remains unclarified suffering from sophisticated catalyst composition involving promoter agents. Herein, the synthesis of high‐purity single‐crystal nanoprisms (Co 2 C‐p) for highly efficient FTS is reported to lower olefins. Through comprehensive microstructure analysis, e.g., high‐resolution TEM, in situ TEM and electron diffraction, as well as finite element simulation of gas flow field, for the first time the full roadmap of forming catalytic active cobalt carbides is disclosed, starting from reduction of Co 3 O 4 precursor to CoO intermediate, then carburization into Co 2 C‐s and subsequent ripening growth into Co 2 C‐p. This gas‐induced engineering of crystal phase provides a new synthesis strategy, with many new possibilities for precise design of metal‐based catalyst for diverse catalytic applications. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| DOI: |
10.1002/adma.202404046 |
| الإتاحة: |
https://doi.org/10.1002/adma.202404046Test |
| حقوق: |
http://creativecommons.org/licenses/by/4.0Test/ |
| رقم الانضمام: |
edsbas.39057D8B |
| قاعدة البيانات: |
BASE |
