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Microreactor containing platinum nanoparticles for nitrobenzene hydrogenation

Paper ID Volume ID Publish Year Pages File Format Full-Text
40964 45872 2012 6 PDF Available
Title
Microreactor containing platinum nanoparticles for nitrobenzene hydrogenation
Abstract

Pt nanoparticles were immobilized inside a microreactor to catalyze the hydrogenation of nitrobenzene to aniline. Catalyst support layers were provided on the inner wall of the microreactor to enhance the adsorption and reaction of the Pt nanoparticles. Using this immobilization method, the Pt nanoparticles inside the microreactor exhibited a good catalytic activity and also were easily regenerated even after they were deactivated. During a 14-h continuous experiment, the average yield of aniline was higher than 92% for 50 mM initial nitrobenzene concentration with the retention time of 12 s. This is equivalent to a turnover frequency of 3200 h−1. The deactivation mechanism of the Pt nanoparticles was also discussed in a long-time reaction.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (185 K)Download as PowerPoint slideHighlights► Pt nanoparticles immobilized inside a microreactor. ► Hydrogenation of nitrobenzene to aniline. ► Deactivation mechanism for a longtime reaction.

Keywords
Microreactor; Pt nanoparticles; Immobilization; Slug flow; Nitrobenzene hydrogenation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 427–428, 15 June 2012, Pages 119–124
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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