Carbon nanofibers in catalytic membrane microreactors

H.C. Aran, Sergio Pacheco Benito, Maria W.J. Luiten-Olieman, S. Er, Matthias Wessling, Leonardus Lefferts, Nieck Edwin Benes, Rob G.H. Lammertink

Research output: Contribution to journalArticleAcademicpeer-review

20 Citations (Scopus)

Abstract

In this study, we report on the fabrication and operation of new hybrid membrane microreactors for gas–liquid–solid (G–L–S) reactions. The presented reactors consist of porous stainless steel tubes onto which carbon nanofibers (CNFs) are grown as catalyst support, all encapsulated by a gas permeable coating. Such reactors benefit from a controlled G–L–S interface of a membrane reactor and high surface area of carbon nanofibers as catalyst support. Preparation steps such as porous stainless steel hollow fiber fabrication, CNF growth on the stainless steel surface, palladium catalyst immobilization and an outer gas permeable polymeric coating steps are presented. The fabricated microreactors have high surface area, mechanical strength and catalytic activity for nitrite reduction in water. Results proved high nitrite reduction performance of these reactors, even without the presence of palladium (Pd) or additional hydrogen (H2) supply. Our results suggest intrinsic reductant properties and catalytic activity of the reactors, which make them very suitable for hydrogenation reactions.
Original languageEnglish
Pages (from-to)244-250
Number of pages7
JournalJournal of membrane science
Volume381
Issue number1-2
DOIs
Publication statusPublished - 2011

Keywords

  • Stainless steel
  • IR-79745
  • Carbon nanofibers
  • Micro-reactor
  • Membrane reactor
  • Zero-valent iron
  • Nitrite reduction
  • METIS-280160

Fingerprint

Dive into the research topics of 'Carbon nanofibers in catalytic membrane microreactors'. Together they form a unique fingerprint.

Cite this