Skip to main content
SpringerLink
Log in

Structural Changes and Material Transport in Al2O3-Supported Cu/Fe Spinel Particles in a Simulated Chemical Looping Combustion Environment

  • Advanced Real Time Optical Imaging
  • Published:
JOM Aims and scope Submit manuscript

Abstract

Alumina-supported Cu/Fe spinel particles were exposed to oxidation/reduction atmospheres at 800°C. Structural changes of the particles subjected to gas cycles between air and 10 vol.% CO-90 vol.% Ar were studied from physical data and real-time images collected using a confocal scanning laser microscope equipped with a heating chamber. Overall particle volume slowly expanded with cycles while surface roughness decreased. Cross-sections of the exposed particles showed segregation of Cu and Fe to the edges of inner grains, which may have acted as oxygen carriers during the exposures. The particles remained whole during the cyclic exposures without any noticeable structural breakdown.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5

Similar content being viewed by others

References

  1. G. Voitic and V. Hacker, RSC Adv. 6, 98267 (2016).

    Article  Google Scholar 

  2. W. Hu, F. Donat, S.A. Scott, and J.S. Dennis, RSC Adv. 6, 113016 (2016).

    Article  Google Scholar 

  3. W. Liu, M. Ismail, M.T. Dunstan, W. Hu, Z. Zhang, P.S. Fennell, S.A. Scott, and J.S. Dennis, RSC Adv. 5, 1759 (2015).

    Article  Google Scholar 

  4. S. Bayham, D. Straub, and J. Weber, Operation of the NETL chemical looping reactor with natural gas and a novel copper-iron material, NETL-PUB-20912; NETL technical report series; U.S. Department of Energy, National Energy Technology Laboratory: Morgantown, WV (2017).

  5. R. Siriwardane, J. Riley, S. Bayham, D. Straua, H. Tian, J. Weber, and G. Richards, Appl. Energy 213, 92–99 (2018).

    Article  Google Scholar 

  6. S. Kameoka, T. Tanabe, and A.P. Tsai, Catal. Lett. 100, 89 (2005).

    Article  Google Scholar 

  7. B. Wang, R. Yan, H. Zhao, Y. Zheng, Z. Liu, and C. Zheng, Energy Fuels 25, 3344 (2011).

    Article  Google Scholar 

  8. M. Estrella, L. Barrio, G. Zhou, X. Wang, Q. Wang, W. Wen, J.C. Hanson, A.I. Frenkel, and J.A. Rodriguez, J. Phys. Chem. C 113, 14411 (2009).

    Article  Google Scholar 

  9. K. Eguchi, N. Shimoda, K. Faungnawakij, T. Matsui, R. Kikuchi, and S. Kawashima, Appl. Catal. B 80, 156 (2008).

    Article  Google Scholar 

Download references

Acknowledgements

This work was performed in support of the US Department of Energy’s Fossil Energy Advanced Combustion Program. The Research was executed through NETL Research and Innovation Center’s Advanced Combustion effort. Research performed by AECOM Staff was conducted under the RES Contract DE-FE-0004000. Authors acknowledge Mr. M. Fortner for metallography and Mr. K. Collins for SEM.

Disclaimer

This project was funded by the Department of Energy, National Energy Technology Laboratory, an agency of the United States Government, through a support contract with AECOM. Neither the United States Government nor any agency thereof, nor any of their employees, nor AECOM, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

Author information

Authors and Affiliations

  1. United States Department of Energy, National Energy Technology Laboratory, 1450 SW Queen Ave, Albany, OR, 97321, USA

    W. H. Harrison Nealley, Anna Nakano, Jinichiro Nakano & James P. Bennett

  2. Oak Ridge Institute for Science and Education, 100 ORAU Way, Oak Ridge, TN, 37380, USA

    W. H. Harrison Nealley

  3. AECOM, P.O. Box 1959, Albany, OR, 97321, USA

    Anna Nakano & Jinichiro Nakano

Authors
  1. W. H. Harrison Nealley
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Anna Nakano
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jinichiro Nakano
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. James P. Bennett
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Anna Nakano.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Nealley, W.H.H., Nakano, A., Nakano, J. et al. Structural Changes and Material Transport in Al2O3-Supported Cu/Fe Spinel Particles in a Simulated Chemical Looping Combustion Environment. JOM 70, 1232–1238 (2018). https://doi.org/10.1007/s11837-018-2913-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11837-018-2913-1

Search

Navigation