Magnetic carbon nanostructures: microwave energy-assisted pyrolysis vs. conventional pyrolysis

Jiahua Zhu; Sameer Pallavkar; Minjiao Chen; Narendranath Yerra; Zhiping Luo; Henry A. Colorado; Hongfei Lin; Neel Haldolaarachchige; Airat Khasanov; Thomas C. Ho; David P. Young; Suying Wei; Zhanhu Guo

doi:10.1039/C2CC36810B

Magnetic carbon nanostructures: microwave energy-assisted pyrolysisvs. conventional pyrolysis†

Jiahua Zhu,^a Sameer Pallavkar,^a Minjiao Chen,^a Narendranath Yerra,^ab Zhiping Luo,^c Henry A. Colorado,^d Hongfei Lin,^e Neel Haldolaarachchige,^f Airat Khasanov,^g Thomas C. Ho,^a David P. Young,^f Suying Wei*^b and Zhanhu Guo*^a

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* Corresponding authors

^a Integrated Composites Laboratory (ICL), Dan F. Smith Department of Chemical Engineering, Lamar University, Beaumont, TX 77710, USA
E-mail: zhanhu.guo@lamar.edu
Tel: +1-409 880-7654

^b Department of Chemistry and Biochemistry, Lamar University, Beaumont, TX 77710, USA
E-mail: suying.wei@lamar.edu
Tel: +1-409 880-7976

^c Department of Chemistry and Physics and Southeastern North Carolina Regional Microanalytical and Imaging Consortium, Fayetteville State University, Fayetteville, NC 28301, USA

^d Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, CA 90095, USA

^e Department of Chemical and Materials Engineering, University of Nevada Reno, Reno, NV 89557, USA

^f Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA

^g University of North Carolina at Asheville, Asheville, NC 28804, USA

Abstract

Magnetic carbon nanostructures from microwave assisted- and conventional-pyrolysis processes are compared. Unlike graphitized carbon shells from conventional heating, different carbon shell morphologies including nanotubes, nanoflakes and amorphous carbon were observed. Crystalline iron and cementite were observed in the magnetic core, different from a single cementite phase from the conventional process.

Chemical Communications

Magnetic carbon nanostructures: microwave energy-assisted pyrolysisvs. conventional pyrolysis†

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Magnetic carbon nanostructures: microwave energy-assisted pyrolysis vs. conventional pyrolysis

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