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A 'Fluid' Nickel-Based Ferrite as an Efficient Redox Material for Thermochemical Two-Step CO 2 Splitting

25 Pages Posted: 1 Oct 2018 Publication Status: Review Complete

See all articles by Jincheng Huang

Jincheng Huang

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

Yu Fu

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

Yonghui Zhao

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

Shenggang Li

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

Jun Zhang

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

Yuhan Sun

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

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Abstract

The solar-driven, thermochemical two-step CO2 splitting reaction is essentially hindered by sintering of the redox material, and thermostable supports are often employed to alleviate this issue, although they usually play a limited role due to the harsh thermal condition. Herein, we demonstrate a distinct strategy, by engineering a “fluid” nickel-based ferrite material without using any support. It maintains a steady-state CO yield over 20 cycles, which is up to three times higher than that of the traditional NiFe2O4/ZrO2 material. Characterizations and first principles calculations suggest that its superiority can be attributed to the significantly enhanced flow of Fe cations, dramatically different from the NiFe2O4/ZrO2, where the oxygen ion undertakes the major transport. Such cation diffusion mode in our novel ferrite material provides a more accessible path to the bulk reaction, leading to a fast bulk reaction kinetics in the ferrite. Thus, we developed a new approach to overcome the sintering problem of ferrite materials.

Suggested Citation

Huang, Jincheng and Fu, Yu and Zhao, Yonghui and Li, Shenggang and Zhang, Jun and Sun, Yuhan, A 'Fluid' Nickel-Based Ferrite as an Efficient Redox Material for Thermochemical Two-Step CO 2 Splitting (September 29, 2018). Available at SSRN: https://ssrn.com/abstract=3257350 or http://dx.doi.org/10.2139/ssrn.3257350
This version of the paper has not been formally peer reviewed.

Jincheng Huang (Contact Author)

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering ( email )

52 Sanlihe Rd.
Datun Road, Anwai
Beijing, Xicheng District 100864
China

Yu Fu

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

52 Sanlihe Rd.
Datun Road, Anwai
Beijing, Xicheng District 100864
China

Yonghui Zhao

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

52 Sanlihe Rd.
Datun Road, Anwai
Beijing, Xicheng District 100864
China

Shenggang Li

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering

52 Sanlihe Rd.
Datun Road, Anwai
Beijing, Xicheng District 100864
China

Jun Zhang

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering ( email )

52 Sanlihe Rd.
Datun Road, Anwai
Beijing, Xicheng District 100864
China

Yuhan Sun

Chinese Academy of Sciences (CAS) - CAS Key Lab of Low-Carbon Conversion Science and Engineering ( email )

52 Sanlihe Rd.
Datun Road, Anwai
Beijing, Xicheng District 100864
China

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