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Carbon formation and gasification on metals. Bulk diffusion mechanism: A reassessment

Paper ID Volume ID Publish Year Pages File Format Full-Text
55648 47060 2011 7 PDF Available
Title
Carbon formation and gasification on metals. Bulk diffusion mechanism: A reassessment
Abstract

The mechanism for carbon formation from hydrocarbons on transition metals, proposed 40 years ago, is reassessed, evaluating the role of surface catalysis and bulk diffusion. Under steady-state conditions, solid state reactions, which are essential to start-up the process, will be confined to carbon growth. The dynamics of carbon mass transfer is discussed, together with the thermodynamic equilibria prevailing at the metal–gas and metal–graphite interfaces. The reverse process of carbon gasification is also addressed.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (83 K)Download as PowerPoint slideHighlights► The mechanism for carbon formation from hydrocarbons on metals is reassessed. ► Original ideas and findings from David Trimm's group are highlighted. ► The roles of surface catalysis and carbon bulk diffusion are discussed.

Keywords
Mechanism; Filamentous carbon formation; Transition metals; Bulk diffusion; Solid state reactions; Mass transfer dynamics
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Carbon formation and gasification on metals. Bulk diffusion mechanism: A reassessment
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 178, Issue 1, 15 December 2011, Pages 110–116
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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