Morphological Phase Diagram of Biocatalytically Active Ceria Nanostructures as a Function of Processing Variables and Their Properties

Authors

  • Dr. Tamilselvan Sakthivel,

    1. Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175
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  • Dr. Soumen Das,

    1. Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175
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  • Dr. Amit Kumar,

    1. Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175
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  • Dr. David L. Reid,

    1. Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175
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  • Ankur Gupta,

    1. Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175
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  • Dr. Dean C. Sayle,

    1. School of Physical Science, University of Kent, Canterbury, Kent, CT2 7NZ (UK)
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  • Dr. Sudipta Seal

    Corresponding author
    1. Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175
    • Advanced Materials Processing and Analysis Center (AMPAC), NanoScience Technology Center (NSTC), Materials Science Engineering (MSE) Department, University of Central Florida, 4000, Central Florida Boulevard, Orlando, FL 32816 (USA), Fax: (+1) 407-882-1175

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Abstract

Invited for this month’s cover is the group of Dr. Sudipta Seal from University of Central Florida, USA and a collaborator from the University of Kent, UK. The cover picture shows a morphological phase diagram of CeO2 indicating regions of nanoparticle nanorods and nanocube formation after certain time periods of hydrothermal treatment. Read the full text of the article at page 1446.

Who designed the cover?

123456789Dr. Tamilselvan Sakthivel designed the cover art, in which he combined both experimental and simulation data to illustrate the key findings of our work.

Scheme 1.

Dr. Sudipta Seal

Scheme 2.

Dr. Tamilselvan Sakthivel

Scheme 3.

Dr. Soumen Das

Scheme 4.

Dr. Amit Kumar

Scheme 5.

Dr. David L. Reid

Scheme 6.

Ankur Gupta

Scheme 7.

Dr. Dean C. Sayle

Scheme 8.
Scheme 9.

How would you describe your research?

Our group focuses on finding out the fundamental properties of various nanostructured materials. We do not restrict ourselves to one particular area, but instead cover a wide range of topics including nano-bio system development, nanostructure sensor systems for chemical and biological detection, plasma-based nano manufacturing, electrochemistry of nanomaterials, high-temperature and high-pressure corrosion, nano-energetic materials, atomic simulation, and rare-earth oxide nanostructures for biomedical applications. We are also working on the fundamental mechanism of the nanoparticle–cell interaction in a dynamic cell environment.

What prompted you to investigate this topic?

Our objective is to obtain the morphological phase diagram for nanostructured materials by changing the experimental parameters using a single method. As we know that the formation of nanostructured materials starts with the nucleation from precursor solutions followed by growth of the resulting nuclei, by varying the synthesis compositions and conditions, both the shape and growth direction of nuclei can be manipulated to obtain nanostructured materials with desirable morphologies. Based on this knowledge, selected variables have been identified as key factors in controlling nucleation and crystal growth for obtaining the morphological phase diagram.

What do you consider the exciting developments in the field?

The field of rare-earth oxide (CeO2) nanostructured materials is moving so rapidly that there is an exciting development reported frequently. We are enthusiastically involved in contributing much more to this exciting field.

Acknowledgements

We thank the NSF NIRT for Nanoceria research fund (NSF international supplement), and the EPSRC fund (EP/H001220) for financial support.

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