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Stable Immobilization of Size‐Controlled Bimetallic Nanoparticles in Photonic Crystal Fiber Microreactor
Author(s) -
Ponce Sebastian,
Munoz Macarena,
Cubillas Ana M.,
Euser Tijmen G.,
Zhang GuiRong,
Russell Philip St. J.,
Wasserscheid Peter,
Etzold Bastian J. M.
Publication year - 2018
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201700131
Subject(s) - microreactor , bimetallic strip , materials science , nanoparticle , catalysis , azobenzene , fiber , chemical engineering , particle size , optical fiber , particle (ecology) , nanotechnology , optics , chemistry , composite material , polymer , organic chemistry , physics , oceanography , geology , engineering
The possibility of immobilizing ex situ‐synthesized colloidal bimetallic nanoparticles (NPs) of well‐defined characteristics inside hollow core photonic crystal fiber (HC‐PCF) microreactors is demonstrated. With the developed method, PtNi clusters remain strongly attached to the fiber core and can be used as active catalysts for the hydrogenation of an azobenzene dye. The study revealed that optical transmission exhibits a size‐dependent behavior, i.e., smaller NPs bring in less optical signal loss. Sufficient light transmission was achieved for all particle sizes. Furthermore, with these catalytic PCF microreactors, kinetic data can be obtained with a much lower amount of precious metals compared to a conventional batch reactor, opening a new pathway for in situ catalyst screening.