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Analysis of forming process of nitrogen-doped carbon catalyst derived from Fe 1,10-phenanthroline compound and its oxygen reduction reaction activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
50413 46794 2014 6 PDF Available
Title
Analysis of forming process of nitrogen-doped carbon catalyst derived from Fe 1,10-phenanthroline compound and its oxygen reduction reaction activity
Abstract

•1,10-phenanthroline was used as a nitrogen-doped carbon catalyst precursor.•Pyrolysis behavior of iron 1,10-phenanthroline compound was investigated. > Drastic mass loss was observed above 650 °C.•Iron carbide (Fe3C) was formed at 700 °C.•ORR activity of nitrogen-doped carbon catalyst was drastically improved between 600 and 700 °C.•The pyridine-like nitrogen to quaternary nitrogen ratio might affect the improvement of ORR activity.

The pyrolysis behavior of iron 1,10-phenanthroline compound, the change of crystalline structure of iron in the iron 1,10-phenanthroline compound, and nitrogen chemical state of nitrogen doped carbon catalyst derived from iron 1,10-phenanthroline compound were investigated to clarify the process of improvement of oxygen reduction reaction (ORR) activity on nitrogen-doped carbon catalyst by TGA, EGA-MS, HT-XRD, XRD, and XPS technique. The ORR activity drastically improved at a synthesis temperature of 700 °C, and was the highest at a synthesis temperature of 800 °C. But the ORR activity significantly dropped at a synthesis temperature of 900 °C. This low ORR activity of NC-900 is probably due to the increase of quaternary nitrogen ratio with progression of excessive carbonization, and the quaternary nitrogen to pyridine-like nitrogen ratio might be an important factor for improvement of the ORR activity.

Graphical abstractFig. ORR activities of nitrogen-doped carbon catalysts compared with TGA curve of iron 1,10-phenanthroline compound.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Catalyst; Oxygen reduction; Nitrogen-doped carbon; Fuel cells
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Analysis of forming process of nitrogen-doped carbon catalyst derived from Fe 1,10-phenanthroline compound and its oxygen reduction reaction activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 43, 5 January 2014, Pages 66–71
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
Online Support
Any Questions? feel free to contact us