Nanostructured metal/carbon hybrids for electrocatalysis by direct carbonization of inverse micelle multilayers

Yu Jin Jang, Yoon Hee Jang, Sang Beom Han, Dibyendu Khatua, Claudia Hess, Hyungju Ahn, Du Yeol Ryu, Kwanwoo Shin, Kyung Won Park, Martin Steinhart, Dong Ha Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

A synthetic strategy for the fabrication of graphitic carbon nanomaterials containing highly dispersed arrays of metal nanoparticles is reported. This synthetic strategy involves successive deposition of inverse micelle monolayers containing a metal precursor and reduction of the latter, followed by direct carbonization of the obtained multilayer structure of inverse micelles containing metal nanoparticles. Thus, a "direct-carbonization" concept, in which the block copolymer simultaneously serves as soft template and as carbon source, was combined with a multilayer buildup protocol. The inner architecture of the multilayer structures consisting of carbon and metal nanoparticles was studied by X-ray reflectivity, grazing incidence small-angle X-ray scattering, and cross-sectional transmission electron microscopy imaging. The hexagonal near ordering of the metal nanoparticles in the block copolymer micelle multilayers was by and large conserved after carbonization. The resulting carbon structures containing multilayers of highly dispersed metal nanoparticles exhibit superior electrocatalytic activity in formic acid and methanol oxidation, suggesting that they are promising electrode materials for fuel cells.

Original languageEnglish
Pages (from-to)1573-1582
Number of pages10
JournalACS Nano
Volume7
Issue number2
DOIs
Publication statusPublished - 2013 Feb 26

Fingerprint

Electrocatalysis
carbonization
Metal nanoparticles
Carbonization
Micelles
micelles
Multilayers
Carbon
Metals
carbon
nanoparticles
formic acid
metals
laminates
Block copolymers
block copolymers
Formic acid
X ray scattering
Nanostructured materials
Methanol

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Jang, Y. J., Jang, Y. H., Han, S. B., Khatua, D., Hess, C., Ahn, H., ... Kim, D. H. (2013). Nanostructured metal/carbon hybrids for electrocatalysis by direct carbonization of inverse micelle multilayers. ACS Nano, 7(2), 1573-1582. https://doi.org/10.1021/nn3056115
Jang, Yu Jin ; Jang, Yoon Hee ; Han, Sang Beom ; Khatua, Dibyendu ; Hess, Claudia ; Ahn, Hyungju ; Ryu, Du Yeol ; Shin, Kwanwoo ; Park, Kyung Won ; Steinhart, Martin ; Kim, Dong Ha. / Nanostructured metal/carbon hybrids for electrocatalysis by direct carbonization of inverse micelle multilayers. In: ACS Nano. 2013 ; Vol. 7, No. 2. pp. 1573-1582.
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Jang, YJ, Jang, YH, Han, SB, Khatua, D, Hess, C, Ahn, H, Ryu, DY, Shin, K, Park, KW, Steinhart, M & Kim, DH 2013, 'Nanostructured metal/carbon hybrids for electrocatalysis by direct carbonization of inverse micelle multilayers', ACS Nano, vol. 7, no. 2, pp. 1573-1582. https://doi.org/10.1021/nn3056115

Nanostructured metal/carbon hybrids for electrocatalysis by direct carbonization of inverse micelle multilayers. / Jang, Yu Jin; Jang, Yoon Hee; Han, Sang Beom; Khatua, Dibyendu; Hess, Claudia; Ahn, Hyungju; Ryu, Du Yeol; Shin, Kwanwoo; Park, Kyung Won; Steinhart, Martin; Kim, Dong Ha.

In: ACS Nano, Vol. 7, No. 2, 26.02.2013, p. 1573-1582.

Research output: Contribution to journalArticle

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AU - Hess, Claudia

AU - Ahn, Hyungju

AU - Ryu, Du Yeol

AU - Shin, Kwanwoo

AU - Park, Kyung Won

AU - Steinhart, Martin

AU - Kim, Dong Ha

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