Nanotubes and nano-coral by the fibre template method

Pirjo Heikkilä, Terhi Hirvikorpi, Jenni Sievänen, Ali Harlin, Mika Vähä-Nissi, Heidi Hildén

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

Abstract

Tubes by fibre templates (TUFT) is a process that is used to fabricate tubular materials. Tube dimension depend on the template fibre size and coating thickness, while tube regularity depend on the coating and template removal methods. We have studied preparation of tubes using electrospun fibres of polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and polyamide-66 (PA) as templates, atomic layer deposition (ALD) of Al2O3 as coating, and dissolution as well as the heat treatment in template removal. Smooth tubes were obtained is dissolution of PVP and PA templates and when heat treatment was used as template removal. Dissolution of PVA, on the other hand, produced novel nanostructured and high surface area coral-like material. This material, which we have called "nano-coral", has a relatively high surface area due to the interconnected cavities formed after the removal of the template. Nanotubular materials has potential in catalysts carriers, filtration and other application fields
Original languageEnglish
Title of host publicationResearch highlights in industrial biomaterials
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages69-74
ISBN (Electronic)978-951-38-7858-0
ISBN (Print)978-951-38-7857-
Publication statusPublished - 2012
MoE publication typeD2 Article in professional manuals or guides or professional information systems or text book material

Publication series

NameVTT Research Highlights
PublisherVTT
Number2
ISSN (Print)2242-1173
ISSN (Electronic)2242-1181

Fingerprint

Nanotubes
Dissolution
Fibers
Polyvinyl alcohols
Polyamides
Coatings
Heat treatment
Atomic layer deposition
Catalysts

Cite this

Heikkilä, P., Hirvikorpi, T., Sievänen, J., Harlin, A., Vähä-Nissi, M., & Hildén, H. (2012). Nanotubes and nano-coral by the fibre template method. In Research highlights in industrial biomaterials (pp. 69-74). Espoo: VTT Technical Research Centre of Finland. VTT Research Highlights, No. 2
Heikkilä, Pirjo ; Hirvikorpi, Terhi ; Sievänen, Jenni ; Harlin, Ali ; Vähä-Nissi, Mika ; Hildén, Heidi. / Nanotubes and nano-coral by the fibre template method. Research highlights in industrial biomaterials. Espoo : VTT Technical Research Centre of Finland, 2012. pp. 69-74 (VTT Research Highlights; No. 2).
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Heikkilä, P, Hirvikorpi, T, Sievänen, J, Harlin, A, Vähä-Nissi, M & Hildén, H 2012, Nanotubes and nano-coral by the fibre template method. in Research highlights in industrial biomaterials. VTT Technical Research Centre of Finland, Espoo, VTT Research Highlights, no. 2, pp. 69-74.

Nanotubes and nano-coral by the fibre template method. / Heikkilä, Pirjo; Hirvikorpi, Terhi; Sievänen, Jenni; Harlin, Ali; Vähä-Nissi, Mika; Hildén, Heidi.

Research highlights in industrial biomaterials. Espoo : VTT Technical Research Centre of Finland, 2012. p. 69-74 (VTT Research Highlights; No. 2).

Research output: Chapter in Book/Report/Conference proceedingChapter or book articleProfessional

TY - CHAP

T1 - Nanotubes and nano-coral by the fibre template method

AU - Heikkilä, Pirjo

AU - Hirvikorpi, Terhi

AU - Sievänen, Jenni

AU - Harlin, Ali

AU - Vähä-Nissi, Mika

AU - Hildén, Heidi

PY - 2012

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N2 - Tubes by fibre templates (TUFT) is a process that is used to fabricate tubular materials. Tube dimension depend on the template fibre size and coating thickness, while tube regularity depend on the coating and template removal methods. We have studied preparation of tubes using electrospun fibres of polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and polyamide-66 (PA) as templates, atomic layer deposition (ALD) of Al2O3 as coating, and dissolution as well as the heat treatment in template removal. Smooth tubes were obtained is dissolution of PVP and PA templates and when heat treatment was used as template removal. Dissolution of PVA, on the other hand, produced novel nanostructured and high surface area coral-like material. This material, which we have called "nano-coral", has a relatively high surface area due to the interconnected cavities formed after the removal of the template. Nanotubular materials has potential in catalysts carriers, filtration and other application fields

AB - Tubes by fibre templates (TUFT) is a process that is used to fabricate tubular materials. Tube dimension depend on the template fibre size and coating thickness, while tube regularity depend on the coating and template removal methods. We have studied preparation of tubes using electrospun fibres of polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and polyamide-66 (PA) as templates, atomic layer deposition (ALD) of Al2O3 as coating, and dissolution as well as the heat treatment in template removal. Smooth tubes were obtained is dissolution of PVP and PA templates and when heat treatment was used as template removal. Dissolution of PVA, on the other hand, produced novel nanostructured and high surface area coral-like material. This material, which we have called "nano-coral", has a relatively high surface area due to the interconnected cavities formed after the removal of the template. Nanotubular materials has potential in catalysts carriers, filtration and other application fields

M3 - Chapter or book article

SN - 978-951-38-7857-

T3 - VTT Research Highlights

SP - 69

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BT - Research highlights in industrial biomaterials

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Heikkilä P, Hirvikorpi T, Sievänen J, Harlin A, Vähä-Nissi M, Hildén H. Nanotubes and nano-coral by the fibre template method. In Research highlights in industrial biomaterials. Espoo: VTT Technical Research Centre of Finland. 2012. p. 69-74. (VTT Research Highlights; No. 2).