Imperial College London
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Dr Qilei Song

Faculty of Engineering, Department of Chemical Engineering

Reader in Chemical Engineering
 
 
 
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Contact

 

+44 (0)20 7594 5623q.song Website CV

 
 
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Location

 

ACEX 409AACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{High:2022,
author = {High, M and Patzschke, C and Zheng, L and Zeng, D and Gavalda, Diaz O and Ding, N and Chien, KHH and Zhang, Z and Wilson, G and Berenov, A and Skinner, S and Campbell, K and Xiao, R and Fennell, PAUL and Song, Q},
journal = {Nature Communications},
title = {Precursor engineering of hydrotalcite-derived redox sorbents for reversible and stable thermochemical oxygen storage},
url = {https://www.nature.com/articles/s41467-022-32593-6},
volume = {13},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Chemical looping processes based on multiple-step reduction and oxidation of metal oxideshold great promise for a variety of energy applications, such as CO2 capture and conversion, gasseparation, energy storage, and redox catalytic processes. Copper-based mixed oxides are one of themost promising candidate materials with a high oxygen storage capacity. However, the structuraldeterioration and sintering at high temperatures is one key scientific challenge. Herein, we report aprecursor engineering approach to prepare durable copper-based redox sorbents for use inthermochemical looping processes for combustion and gas purification. Calcination of the CuMgAlhydrotalcite precursors formed mixed metal oxides consisting of CuO nanoparticles dispersed in the MgAl oxide support which inhibits the formation of copper aluminates during redox cycling. The copperbased redox sorbents demonstrated enhanced reaction rates, stable O2 storage capacity over 500 redoxcycles at 900 °C, and efficient gas purification over a broad temperature range. We expect that ourmaterials design strategy has broad implications on synthesis and engineering of mixed metal oxides fora range of thermochemical processes and redox catalytic applications.
AU  - High,M
AU  - Patzschke,C
AU  - Zheng,L
AU  - Zeng,D
AU  - Gavalda,Diaz O
AU  - Ding,N
AU  - Chien,KHH
AU  - Zhang,Z
AU  - Wilson,G
AU  - Berenov,A
AU  - Skinner,S
AU  - Campbell,K
AU  - Xiao,R
AU  - Fennell,PAUL
AU  - Song,Q
PY  - 2022///
SN  - 2041-1723
TI  - Precursor engineering of hydrotalcite-derived redox sorbents for reversible and stable thermochemical oxygen storage
T2  - Nature Communications
UR  - https://www.nature.com/articles/s41467-022-32593-6
UR  - http://hdl.handle.net/10044/1/98637
VL  - 13
ER  -
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