4.6 Article

Quasi-continuous synthesis of iron single atom catalysts via a microcapsule pyrolysis strategy

期刊

AICHE JOURNAL
卷 67, 期 6, 页码 -

出版社

WILEY
DOI: 10.1002/aic.17197

关键词

microcapsules; quasi‐ continuous synthesis; selective oxidation; single atom catalysts

资金

  1. Fundamental Research Funds for the Central Universities [19lgpy129]
  2. Guangdong Provincial Key RD Programme [2019B110206002]
  3. Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01C102]
  4. National Natural Science Foundation of China-SINOPEC Joint Fund [U1663220]
  5. NSF of Guang-dong Province [2020A1515010141]
  6. Science and Technology Key Project of Guangdong Province, China [2020B010188002]
  7. China Postdoctoral Science Foundation [2020T130735]
  8. Special fund for Local Science and Technology Development by the Central Government

向作者/读者索取更多资源

Single atom catalysts (SACs), known for their excellent performance, still face challenges in large-scale production. A novel microcapsule strategy for quasi-continuous synthesis of iron SACs has been developed, showing promise for industrial application.
Single atom catalysts (SACs), featured with atomically dispersed metal species, have been considered as one of the most promising catalytic materials because of the excellent performance in various high-value-added reactions. However, the large-scale and continuous-type production of such SACs is still challenging. Herein, a novel and facile microcapsule strategy for the quasi-continuous synthesis of iron SACs supported on S, N co-doped carbon (Fe/SNC) is developed, and the Fe species are presented as isolated active sites and stabilized as the FeN3S-like structure. The as-prepared Fe/SNC catalysts exhibit excellent catalytic properties for selective oxidation of arylalkanes, which followed pseudo-first-order kinetics with an E-a = 41.5 kJ/mol. More importantly, the two Fe/SNC catalysts synthesized at different continuous times showed essentially identical catalyst structure and catalytic performance, demonstrating the superior reliability of our microcapsule strategy for the quasi-continuous production of SACs, which can be easily scaled up to industrial application.

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