Preparation of thin porous titania films on stainless steel substrates for heat exchange (HEX) reactors

Mikihiro Nomura, Ben Meester, Joop Schoonman, Freek Kapteijn, Jacob A. Moulijn

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

A porous titania film with pores of few micrometer sizes was prepared on a stainless steel support for a composite material of metal and inorganic oxide. The combination of a porous catalyst layer and a metal support improves the thermal conductivity compared with a traditional inorganic powder catalyst by an aid of a metal support. A porous titania film was obtained on a stainless steel support by the electrostatic sol-spray deposition (ESSD) method. Water in the parent sol was a key factor to obtain porous films. These porous films were cracked by a rapid temperature change during the cooling procedure after the deposition by the difference of the thermal expansion rate of stainless steel and titania. The parent sol was aged before a deposition to obtain a flexible structure to keep its structure. The obtained porous films comprised an aggregation of fibrous titania with few micrometer pores by SEM observation. This film was stable for a rapid temperature change. A porous titania film without any cracks were obtained on a stainless steel substrate using the ESSD method by an aging of the parent sol.

Original languageEnglish
Pages (from-to)387-395
Number of pages9
JournalSeparation and Purification Technology
Volume32
Issue number1-3
DOIs
Publication statusPublished - 2003 Jul 1
Externally publishedYes

Fingerprint

Stainless Steel
Stainless steel
Titanium
Polymethyl Methacrylate
Sols
Substrates
Metals
Catalyst supports
Electrostatics
Catalysts
Flexible structures
Hot Temperature
titanium dioxide
Powders
Oxides
Thermal expansion
Thermal conductivity
Agglomeration
Aging of materials
Cooling

Keywords

  • Composite membrane reactor
  • Electrostatic sol-spray deposition
  • Metal support
  • Porous titania film

ASJC Scopus subject areas

  • Filtration and Separation

Cite this

Preparation of thin porous titania films on stainless steel substrates for heat exchange (HEX) reactors. / Nomura, Mikihiro; Meester, Ben; Schoonman, Joop; Kapteijn, Freek; Moulijn, Jacob A.

In: Separation and Purification Technology, Vol. 32, No. 1-3, 01.07.2003, p. 387-395.

Research output: Contribution to journalArticle

Nomura, Mikihiro ; Meester, Ben ; Schoonman, Joop ; Kapteijn, Freek ; Moulijn, Jacob A. / Preparation of thin porous titania films on stainless steel substrates for heat exchange (HEX) reactors. In: Separation and Purification Technology. 2003 ; Vol. 32, No. 1-3. pp. 387-395.
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