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  High coercivity stellated cobalt metal multipods through solvothermal reduction of cobalt hydroxide nanosheets

Nethravathi, C., Rajamathi, C. R., Singh, S., Rajamathi, M., & Felser, C. (2017). High coercivity stellated cobalt metal multipods through solvothermal reduction of cobalt hydroxide nanosheets. RSC Advances, 7, 1413-1417. doi:10.1039/C6RA25309A.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-8E6E-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-D76C-4
Genre: Journal Article

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 Creators:
Nethravathi, C.1, Author
Rajamathi, Catherine R.2, Author              
Singh, Sanjay2, Author              
Rajamathi, Michael, Author
Felser, Claudia3, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: Solvated 2D nanosheets of dodecylsulphate intercalated [small alpha]-cobalt hydroxide in 1-butanol are solvothermally reduced to hexagonal close packed (hcp) Co metal multipods in the presence of oleylamine. 1-Butanol,} being a reducing solvent{,} facilitates the formation of Co metal. In addition to being a reducing agent{,} oleylamine also acts as a base which converts the metastable [small alpha]-cobalt hydroxide nanosheets into [small beta]-hydroxide sheets. These sheets yield face centered cubic (fcc) CoO spheres which eventually grow into hcp Co metal multipods. All the pods are single crystalline with growth direction being [001]{,} making the multipods resemble stellated polyhedra with overgrown branches. The stellated Co metal multipods exhibit high coercivity (Hc){,} of 880 and 552 Oe at 2 K and 300 K respectively{, due to shape anisotropy.

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Language(s): eng - English
 Dates: 2017-01-132017-01-13
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1039/C6RA25309A
 Degree: -

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Title: RSC Advances
  Abbreviation : RSC Adv.
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 7 Sequence Number: - Start / End Page: 1413 - 1417 Identifier: ISSN: 2046-2069
CoNE: https://pure.mpg.de/cone/journals/resource/2046-2069