Scalable synthesis of dispersible iron carbide (Fe3C) nanoparticles by ‘nanocasting’

D. C. Fletcher; R. Hunter; W. Xia; G. J. Smales; B. R. Pauw; E. Blackburn; A. Kulak; Huolin Xin; Z. Schnepp

doi:10.1039/C9TA06876G

Scalable synthesis of dispersible iron carbide (Fe₃C) nanoparticles by ‘nanocasting’

D. C. Fletcher, R. Hunter, W. Xia, G. J. Smales, B. R. Pauw, E. Blackburn, A. Kulak, Huolin Xin, Z. Schnepp

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

264 Downloads (Pure)

Abstract

Metal carbides have shown great promise in a wide range of applications due to their unique catalytic, electrocatalytic and magnetic properties. However, the scalable production of dispersible metal carbide nanoparticles remains a challenge. Here, we report a simple and scalable route to dispersible iron carbide (Fe ₃C) nanoparticles. This uses MgO nanoparticles as a removable 'cast' to synthesize Fe ₃C nanoparticles from Prussian blue (KFe ^III[Fe ^II(CN) ₆]). Electron tomography demonstrates how nanoparticles of the MgO cast encase the Fe ₃C nanoparticles to prevent sintering and agglomeration during the higherature synthesis. The MgO cast is readily removed with ethylenediaminetetraacetic acid (EDTA) to generate Fe ₃C nanoparticles that can be used to produce a colloidal ferrofluid or dispersed on a support material.

Original language	English
Pages (from-to)	19506-19512
Number of pages	7
Journal	Journal of Materials Chemistry A
Volume	7
Issue number	33
Early online date	5 Aug 2019
DOIs	https://doi.org/10.1039/C9TA06876G
Publication status	Published - 7 Sept 2019

ASJC Scopus subject areas

General Chemistry
Renewable Energy, Sustainability and the Environment
General Materials Science

UN SDGs

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

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Fletcher_et_al_2019_Scalable_synthesis_of_dispersible_iron_carbide_Journal_of_Materials_Chemistry_AFinal published version, 1.03 MBLicence: Creative Commons: Attribution (CC BY)

http://xlink.rsc.org/?DOI=C9TA06876GLicence: Creative Commons: Attribution (CC BY)

Cite this

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title = "Scalable synthesis of dispersible iron carbide (Fe3C) nanoparticles by {\textquoteleft}nanocasting{\textquoteright}",

abstract = "Metal carbides have shown great promise in a wide range of applications due to their unique catalytic, electrocatalytic and magnetic properties. However, the scalable production of dispersible metal carbide nanoparticles remains a challenge. Here, we report a simple and scalable route to dispersible iron carbide (Fe 3C) nanoparticles. This uses MgO nanoparticles as a removable 'cast' to synthesize Fe 3C nanoparticles from Prussian blue (KFe III[Fe II(CN) 6]). Electron tomography demonstrates how nanoparticles of the MgO cast encase the Fe 3C nanoparticles to prevent sintering and agglomeration during the higherature synthesis. The MgO cast is readily removed with ethylenediaminetetraacetic acid (EDTA) to generate Fe 3C nanoparticles that can be used to produce a colloidal ferrofluid or dispersed on a support material. ",

author = "Fletcher, {D. C.} and R. Hunter and W. Xia and Smales, {G. J.} and Pauw, {B. R.} and E. Blackburn and A. Kulak and Huolin Xin and Z. Schnepp",

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T1 - Scalable synthesis of dispersible iron carbide (Fe3C) nanoparticles by ‘nanocasting’

AU - Fletcher, D. C.

AU - Hunter, R.

AU - Xia, W.

AU - Smales, G. J.

AU - Pauw, B. R.

AU - Blackburn, E.

AU - Kulak, A.

AU - Xin, Huolin

AU - Schnepp, Z.

PY - 2019/9/7

Y1 - 2019/9/7

N2 - Metal carbides have shown great promise in a wide range of applications due to their unique catalytic, electrocatalytic and magnetic properties. However, the scalable production of dispersible metal carbide nanoparticles remains a challenge. Here, we report a simple and scalable route to dispersible iron carbide (Fe 3C) nanoparticles. This uses MgO nanoparticles as a removable 'cast' to synthesize Fe 3C nanoparticles from Prussian blue (KFe III[Fe II(CN) 6]). Electron tomography demonstrates how nanoparticles of the MgO cast encase the Fe 3C nanoparticles to prevent sintering and agglomeration during the higherature synthesis. The MgO cast is readily removed with ethylenediaminetetraacetic acid (EDTA) to generate Fe 3C nanoparticles that can be used to produce a colloidal ferrofluid or dispersed on a support material.

AB - Metal carbides have shown great promise in a wide range of applications due to their unique catalytic, electrocatalytic and magnetic properties. However, the scalable production of dispersible metal carbide nanoparticles remains a challenge. Here, we report a simple and scalable route to dispersible iron carbide (Fe 3C) nanoparticles. This uses MgO nanoparticles as a removable 'cast' to synthesize Fe 3C nanoparticles from Prussian blue (KFe III[Fe II(CN) 6]). Electron tomography demonstrates how nanoparticles of the MgO cast encase the Fe 3C nanoparticles to prevent sintering and agglomeration during the higherature synthesis. The MgO cast is readily removed with ethylenediaminetetraacetic acid (EDTA) to generate Fe 3C nanoparticles that can be used to produce a colloidal ferrofluid or dispersed on a support material.

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