| Mesoporous Siliconiobium Phosphate as a Pure Brønsted Acid Catalyst with Excellent Performance for the Dehydration of Glycerol to Acrolein. | |
| | |
MedLine Citation:
|
PMID: 23132784 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
The development of solid acid catalysts that contain a high density of Brønsted acid sites with suitable acidity, as well as a long lifetime, is one of great challenges for the efficient dehydration of glycerol to acrolein. Herein, we report on a mesoporous siliconiobium phosphate (NbPSi-0.5) composite, which is a promising solid Brønsted acid that is a potential candidate for such a high-performance catalyst. A variety of characterization results confirm that NbPSi-0.5 contains nearly pure Brønsted acid sites and has well-defined large mesopores. In addition, NbPSi-0.5 contains a similar amount of acid sites and exhibits weaker acidity than that of the highly acidic niobium phosphate and HZSM-5 zeolite. NbPSi-0.5 is quite stable and has a high activity for the dehydration of glycerol. The stability of NbPSi-0.5 is about three times higher than that of the reported catalyst. The significantly enhanced catalytic performance of NbPSi-0.5 can be attributed to 1) nearly pure Brønsted acidity, which suppresses side reactions that lead to coke formation; 2) a significant reduction of pore blocking due to the mesopores; and 3) a decrease in the amount and oxidation temperature of coke. |
| | |
Authors:
|
Youngbo Choi; Dae Sung Park; Hyeong Jin Yun; Jayeon Baek; Danim Yun; Jongheop Yi |
Related Documents
:
|
11696374 - A pathogen-inducible divinyl ether synthase (cyp74d) from elicitor-treated potato suspe... 9390454 - Characterization of leuconostoc mesenteroides nrrl b-512f dextransucrase (dsrs) and ide... 15629124 - Expression of manganese lipoxygenase in pichia pastoris and site-directed mutagenesis o... 21629834 - Widespread occurrence of secondary lipid biosynthesis potential in microbial lineages. 6176604 - Fate of digesta ribonucleic acid in small intestine of sheep. 22781994 - Use of folic acid supplements and risk of cleft lip and palate in infants: a population... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-11-6 |
Journal Detail:
|
Title: ChemSusChem Volume: - ISSN: 1864-564X ISO Abbreviation: ChemSusChem Publication Date: 2012 Nov |
Date Detail:
|
Created Date: 2012-11-7 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101319536 Medline TA: ChemSusChem Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
|
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
|
World Class University Program of Chemical Convergence for Energy & Environment, Institute of Chemical Processes, School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742 (Republic of Korea), Fax: (+82) 2-885-6670. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Timing of Stroke in Patients Undergoing Total Hip Replacement and Matched Controls: A Nationwide Coh...
Next Document: MRT Letter: Application of novel "in vivo cryotechnique" in living animal kidneys.