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Study of NO adsorption on activated carbons

Paper ID Volume ID Publish Year Pages File Format Full-Text
48024 46488 2008 9 PDF Available
Title
Study of NO adsorption on activated carbons
Abstract

Activated carbons (ACs) with varied porous textures and surface chemistry were studied for NO removal under different test conditions at temperatures below 100 °C. When oxygen is absent, there is almost no NO removal. When oxygen is present ACs act both as a catalyst for NO oxidation and as an adsorbent for NO adsorption. NO conversion is correlated with the presence of narrow micropores and is independent of surface area. ACs with an average micropore size around 7 Å exhibit the best NO removal capacity. NO rather than NO2 was observed to be the main adsorbed species during the initial period of adsorption. NO2 adsorption and NO2 gas release start only after the carbon surface was rapidly oxidized during the early stage of adsorption. The decomposition of NO2 formed through NO oxidation was believed to be responsible for the rapid carbon surface oxidation and NO chemisorption.

Keywords
Activated carbon; Catalyst; Adsorption; Texture
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Study of NO adsorption on activated carbons
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 83, Issues 1–2, 1 September 2008, Pages 63–71
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
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