Miro Haluska
ETH Zurich
4 Papers
2 Citations
Miro Haluska is an academic researcher from ETH Zurich. The author has contributed to research in topics: Nanoparticle & Nanotube. The author has an hindex of 2, co-authored 4 publications.
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Papers
SWCNT growth from C:Ni nanocomposites
Abstract: Carbon:nickel (C:Ni) nanocomposite thin films deposited by ion beam co‐sputtering were used for catalytic chemical vapor deposition (CVD) growth of single‐walled carbon nanotubes (SWCNTs). The SWCNTs were characterized by scanning electron microscopy and Raman spectroscopy. The approach allows a precise and reproducible control of the catalyst diameter, while the embedding carbon matrix prevents the particles from coalescence during catalyst activation and nanotube growth. The SWCNTs obtained from Ni particles with ∼4 nm diameter have a radial breathing mode frequency distribution of 147.5 ± 32 cm−1 and a diameter distribution of 1.6 ± 0.4 nm. Small line widths of the radial breathing mode and ID/IG ratios of 0.05 indicate SWCNTs with a low defect concentration.
6
Synthesis of Tridimensional Ensembles of Carbon Nanotubes
Miro Haluska
- 13 Feb 2017
TL;DR: In this paper, the synthesis of both aligned and unaligned carbon nanotube bulk ensembles by different methods such as electric arc discharge, laser ablation and chemical vapor deposition methods is discussed.
1
Phase Transitions in C:Ni Nanocomposite Templates during Diameter‐Selective CVD Synthesis of SWCNTs
TL;DR: In this article, phase transitions in carbon:nickel nanocomposite templates during diameter-selective CVD synthesis of SWCNTs were studied, and a mechanism for the complementary roles of carbon matrix and Ni species in the three-step CVD synthesization was proposed that includes nanoparticle immobilization, carbon delivery and catalysis of nanotube growth.
1
Carbon : nickel nanocomposite templates - predefined stable catalysts for diameter-controlled growth of single-walled carbon nanotubes.
Svetlana Melkhanova,Svetlana Melkhanova,Miro Haluska,René Hübner,Tim Kunze,Adrian Keller,G. Abrasonis,Sibylle Gemming,Sibylle Gemming,Sibylle Gemming,Matthias Krause +10 more
TL;DR: The study demonstrates the advantage of predefined catalysts for diameter-controlled SWCNT synthesis in comparison to in situ formed catalysts.