Mechanistic insights on the reaction behaviors of the acrylonitrile selective catalytic combustion over Cu-based UZM-9.

Clicks: 382
ID: 101136
2020
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #25 of 357 articles by views in Journal of hazardous materials

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 357 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
In this paper, a series of Cu-based UZM-9 catalysts were prepared via modified aqueous ion exchange and the performance of acrylonitrile (AN) selective catalytic combustion (SCC) over these catalysts were investigated, and further characterized by Ar adsorption-desorption, ICP, XRD, H-TPR and XPS. Among which, Cu-11.5 catalyst exhibited a complete AN conversion at 270 °C together with N selectivity higher than 98% during the whole temperature range when water was present. Meantime, the isolated Cu was the main active sites, which could be reduced to Cu during -CN oxidation, then reoxidized to Cu by O. Besides, the mechanism of AN SCC over Cu-11.5 was systematically investigated by in situ DRIFTS, which revealed that both the temperature and HO contents could influence the main N-containing intermediate and the reaction mechanism. In low and high temperature region, the reaction followed hydrolysis mechanism. Within medium temperature range, the reaction mechanism of AN oxidation was strongly associated with the water content. Oxidation was dominant at water-free condition, while oxidation and hydrolysis coexisted at relatively low water content (0.3%). When water content reached up to 0.9% or more, hydrolysis was the principal reaction. Finally, the hydrothermal stability of Cu-based UZM-9 catalysts were illustrated.
Reference Key
wei2020mechanisticjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Wei, Xiaoli;Wang, Sheng;Xu, Dekang;Wang, Shudong;
Journal Journal of hazardous materials
Year 2020
DOI
S0304-3894(20)30486-6
URL
Keywords
mechanism acrylonitrile cu-based uzm-9 selective catalytic combustion

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.