Colloids and Surfaces A 538 (2018) 559–564 Contents lists available at ScienceDirect Colloids and Surfaces A journal homepage: www.elsevier.com/locate/colsurfa Synthesis of nanometric silica particles via a modiﬁed Stöber synthesis route Manuel Meier , Julian Ungerer, Mira Klinge, Hermann Nirschl Institute of Mechanical Process Engineering and Mechanics, Karlsruhe Institute of Technology (KIT), Campus Sued, Strasse am Forum 8, 76131 Karlsruhe, Germany GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keyword: In this paper we describe a simple modiﬁcation of the classic Stöber reaction enabling a high temperature Ethanolamine synthesis of nanometric silica particles with diameters less than 100 nm in sealed reaction tubes. This could be Silica reached due to the replacement of the basic catalyst ammonia by ethanolamine. Thus, high temperature Reaction tube synthesis up to 80 °C can be run without facing the risk of bubble formation inside the reaction tube. The Stöber process modiﬁed synthesis route enables the synthesis of spherical silica nanoparticles with mean diameters between 28 and 647 nm and standard deviations less than 10% as well as smooth surface structures. This work deals with basic studies on the use of ethanolamine for the synthesis of silica nanoparticles in alkaline media in sealed reaction tubes
Geoderma – Elsevier
Published: Feb 15, 2019
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