Carbon dioxide decomposition through gas exchange in barium calcium iron niobates

Harriet Kildahl; Zhongbo Li; Hui Cao; Peter Slater; Yulong Ding

doi:10.1016/j.cattod.2020.05.024

Carbon dioxide decomposition through gas exchange in barium calcium iron niobates

Harriet Kildahl, Zhongbo Li, Hui Cao, Peter Slater, Yulong Ding

Research output: Contribution to journal › Conference article › peer-review

13 Citations (Scopus)

Abstract

A number of metal oxides and perovskites are capable of being reduced at high temperatures and then re-oxidised in the presence of CO2 or H2O to form CO or H2. Barium calcium iron niobates have been found to be redox-active in this way. The redox activity of these perovskites was explored, and the chemical and physical stability was investigated using EDX and SEM imaging, respectively. The most promising, Ba2Ca0.66Nb0.34FeO6-δ (BCNF1), showed mass changes of 0.45 % after five cycles of reduction with N2 and re-oxidation with 10 % CO2. BCNF1 is chemically stable as it shows no changes in XRD and shows no evidence of sintering, although cracking of the pellets was observed after re-oxidation. The low enthalpy of re-oxidation of BCNF1 coupled with the high and sustained mass change makes this perovskite suitable for chemical looping use for energy storage and conversion systems.

Original language	English
Pages (from-to)	211-219
Number of pages	9
Journal	Catalysis Today
Volume	364
Early online date	11 May 2020
DOIs	https://doi.org/10.1016/j.cattod.2020.05.024
Publication status	Published - 15 Mar 2021
Externally published	Yes
Event	14th International Conference on Catalysis in Membrane Reactors - Eindhoven, Netherlands Duration: 8 Jul 2019 → 11 Jul 2019 Conference number: 14 https://www.aanmelder.nl/99737

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 13 Climate Action

Access to Document

10.1016/j.cattod.2020.05.024Licence: Unspecified

Cite this

@article{505b6e7d07e84b86bd723c0f6ee8ff38,

title = "Carbon dioxide decomposition through gas exchange in barium calcium iron niobates",

abstract = "A number of metal oxides and perovskites are capable of being reduced at high temperatures and then re-oxidised in the presence of CO2 or H2O to form CO or H2. Barium calcium iron niobates have been found to be redox-active in this way. The redox activity of these perovskites was explored, and the chemical and physical stability was investigated using EDX and SEM imaging, respectively. The most promising, Ba2Ca0.66Nb0.34FeO6-δ (BCNF1), showed mass changes of 0.45 \% after five cycles of reduction with N2 and re-oxidation with 10 \% CO2. BCNF1 is chemically stable as it shows no changes in XRD and shows no evidence of sintering, although cracking of the pellets was observed after re-oxidation. The low enthalpy of re-oxidation of BCNF1 coupled with the high and sustained mass change makes this perovskite suitable for chemical looping use for energy storage and conversion systems.",

keywords = "Carbon dioxide conversion, Perovskite, CO reduction, Chemical looping, Barium calcium iron niobates",

author = "Harriet Kildahl and Zhongbo Li and Hui Cao and Peter Slater and Yulong Ding",

note = "Funding Information: The authors would like to thank the University of Birmingham and UK EPSRC and acknowledge financial support from UK EPSRC under EP/S016627/1 and EP/R024006/1 . Publisher Copyright: {\textcopyright} 2020 Elsevier B.V. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.; 14th International Conference on Catalysis in Membrane Reactors, ICCMR14 ; Conference date: 08-07-2019 Through 11-07-2019",

year = "2021",

month = mar,

day = "15",

doi = "10.1016/j.cattod.2020.05.024",

language = "English",

volume = "364",

pages = "211--219",

journal = "Catalysis Today",

issn = "0920-5861",

publisher = "Elsevier BV",

url = "https://www.aanmelder.nl/99737",

}

TY - JOUR

T1 - Carbon dioxide decomposition through gas exchange in barium calcium iron niobates

AU - Kildahl, Harriet

AU - Li, Zhongbo

AU - Cao, Hui

AU - Slater, Peter

AU - Ding, Yulong

N1 - Conference code: 14

PY - 2021/3/15

Y1 - 2021/3/15

N2 - A number of metal oxides and perovskites are capable of being reduced at high temperatures and then re-oxidised in the presence of CO2 or H2O to form CO or H2. Barium calcium iron niobates have been found to be redox-active in this way. The redox activity of these perovskites was explored, and the chemical and physical stability was investigated using EDX and SEM imaging, respectively. The most promising, Ba2Ca0.66Nb0.34FeO6-δ (BCNF1), showed mass changes of 0.45 % after five cycles of reduction with N2 and re-oxidation with 10 % CO2. BCNF1 is chemically stable as it shows no changes in XRD and shows no evidence of sintering, although cracking of the pellets was observed after re-oxidation. The low enthalpy of re-oxidation of BCNF1 coupled with the high and sustained mass change makes this perovskite suitable for chemical looping use for energy storage and conversion systems.

AB - A number of metal oxides and perovskites are capable of being reduced at high temperatures and then re-oxidised in the presence of CO2 or H2O to form CO or H2. Barium calcium iron niobates have been found to be redox-active in this way. The redox activity of these perovskites was explored, and the chemical and physical stability was investigated using EDX and SEM imaging, respectively. The most promising, Ba2Ca0.66Nb0.34FeO6-δ (BCNF1), showed mass changes of 0.45 % after five cycles of reduction with N2 and re-oxidation with 10 % CO2. BCNF1 is chemically stable as it shows no changes in XRD and shows no evidence of sintering, although cracking of the pellets was observed after re-oxidation. The low enthalpy of re-oxidation of BCNF1 coupled with the high and sustained mass change makes this perovskite suitable for chemical looping use for energy storage and conversion systems.

KW - Carbon dioxide conversion

KW - Perovskite

KW - CO reduction

KW - Chemical looping

KW - Barium calcium iron niobates

UR - https://www.scopus.com/pages/publications/85084519613

U2 - 10.1016/j.cattod.2020.05.024

DO - 10.1016/j.cattod.2020.05.024

M3 - Conference article

SN - 0920-5861

VL - 364

SP - 211

EP - 219

JO - Catalysis Today

JF - Catalysis Today

T2 - 14th International Conference on Catalysis in Membrane Reactors

Y2 - 8 July 2019 through 11 July 2019

ER -

Carbon dioxide decomposition through gas exchange in barium calcium iron niobates

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this