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Spaced-Confined Capsule Catalysts with Tunable Micro-Environments for Efficient CO2 Conversion
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  • Hao Wu,
  • Lisheng Guo,
  • Xianbiao Wang,
  • Wenjie Zhou,
  • Fang Chen,
  • Da Li,
  • Kai Liu,
  • Peipei Ai,
  • Yuxue Wei,
  • Mengdie Cai,
  • Song Sun
Hao Wu
Anhui University
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Lisheng Guo
Anhui University

Corresponding Author:[email protected]

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Xianbiao Wang
Anhui University
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Wenjie Zhou
Anhui University
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Fang Chen
Anhui University
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Da Li
Linhuan Coking Company Limited
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Peipei Ai
Taiyuan University of Technology
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Yuxue Wei
Anhui University
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Mengdie Cai
Anhui University
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Song Sun
Anhui University
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Abstract

CO2 as a greenhouse gas causes a series of issues, and catalytic utilization of CO2 to fuels is a favorable strategy. Herein, we report the discovery in CO2 hydrogenation reaction where C5+ yield can be evidently improved by encapsulating ZnFe2O4 inside ZSM-5, in which the micro-environments of core-shell components can be tuned. For the ZnFe2O4, the K promoter makes the Fe-C structure more electron deficient than the Na, which contributes to the formation of long-chain olefins. ZSM-5 with K or Ce modification presents enhanced adsorption ability of alkene, then promoting aromatization and isomerization reactions of alkenes. Compared with Ce, K-ZSM-5 contributes to isomerization rather than aromatization, forming more isoparaffins. In this work, regulating the microenvironment of capsule catalysts provides a new idea for the design of efficient tandem catalysts, and expands the ability of hybrid catalysts against other catalysts, thus presenting an excellent catalytic efficiency for CO2 upgrading.
Submitted to AIChE Journal
29 Jan 2024Review(s) Completed, Editorial Evaluation Pending
31 Jan 2024Editorial Decision: Revise Major
18 Feb 20241st Revision Received
19 Feb 2024Submission Checks Completed
19 Feb 2024Assigned to Editor
06 Mar 2024Editorial Decision: Accept