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Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15
Molybdovanadylphosphoric acid (HPMV) was supported on a carbon nitride-modified SBA-15 (CN-SBA-15) molecular sieve to enhance its catalytic performance for oxidation of methacrolein (MAL) to methacrylic acid (MAA). HPMV/CN-SBA exhibited increased catalytic activity (20%) and five times greater MAA s...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9073591/ https://www.ncbi.nlm.nih.gov/pubmed/35528902 http://dx.doi.org/10.1039/c9ra06021a |
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author | Zhou, Lilong Zhang, Shanshan Li, Zhengjie Scott, Jason Zhang, Zhikun Liu, Runjing Yun, Jimmy |
author_facet | Zhou, Lilong Zhang, Shanshan Li, Zhengjie Scott, Jason Zhang, Zhikun Liu, Runjing Yun, Jimmy |
author_sort | Zhou, Lilong |
collection | PubMed |
description | Molybdovanadylphosphoric acid (HPMV) was supported on a carbon nitride-modified SBA-15 (CN-SBA-15) molecular sieve to enhance its catalytic performance for oxidation of methacrolein (MAL) to methacrylic acid (MAA). HPMV/CN-SBA exhibited increased catalytic activity (20%) and five times greater MAA selectivity (98.9%) compared to bulk HPMV. HPMV supported on CN-SBA-15 exhibited much better catalytic performance as compared to that on other supports, such as KIT-6, HY zeolite, TiO(2), Al(2)O(3), SiO(2), CNTs, and NH(3)-modified CNTs. The supported HPMV was well characterized by FT-IR, XRD, SEM, N(2) physical desorption, TG-DTA, NH(3)-TPD, CO(2)-TPD, XPS, and solid-state NMR. The CN minimized the interaction between the silica support and HPMV. HPMV was successfully separated from SBA-15, which was restricted by CN to increase stability and prevent interaction between the catalysts and support that would lead to decomposition of the catalysts during calcination and reaction. HPMV reacted with amino groups on the CN, which improved MAA selectivity and enhanced the thermal stability of the supported heteropoly acid (HPA) catalysts. This work identifies a new approach to preparing highly efficient and stable supported HPA catalysts for oxidation reactions. |
format | Online Article Text |
id | pubmed-9073591 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90735912022-05-06 Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 Zhou, Lilong Zhang, Shanshan Li, Zhengjie Scott, Jason Zhang, Zhikun Liu, Runjing Yun, Jimmy RSC Adv Chemistry Molybdovanadylphosphoric acid (HPMV) was supported on a carbon nitride-modified SBA-15 (CN-SBA-15) molecular sieve to enhance its catalytic performance for oxidation of methacrolein (MAL) to methacrylic acid (MAA). HPMV/CN-SBA exhibited increased catalytic activity (20%) and five times greater MAA selectivity (98.9%) compared to bulk HPMV. HPMV supported on CN-SBA-15 exhibited much better catalytic performance as compared to that on other supports, such as KIT-6, HY zeolite, TiO(2), Al(2)O(3), SiO(2), CNTs, and NH(3)-modified CNTs. The supported HPMV was well characterized by FT-IR, XRD, SEM, N(2) physical desorption, TG-DTA, NH(3)-TPD, CO(2)-TPD, XPS, and solid-state NMR. The CN minimized the interaction between the silica support and HPMV. HPMV was successfully separated from SBA-15, which was restricted by CN to increase stability and prevent interaction between the catalysts and support that would lead to decomposition of the catalysts during calcination and reaction. HPMV reacted with amino groups on the CN, which improved MAA selectivity and enhanced the thermal stability of the supported heteropoly acid (HPA) catalysts. This work identifies a new approach to preparing highly efficient and stable supported HPA catalysts for oxidation reactions. The Royal Society of Chemistry 2019-10-23 /pmc/articles/PMC9073591/ /pubmed/35528902 http://dx.doi.org/10.1039/c9ra06021a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Zhou, Lilong Zhang, Shanshan Li, Zhengjie Scott, Jason Zhang, Zhikun Liu, Runjing Yun, Jimmy Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 |
title | Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 |
title_full | Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 |
title_fullStr | Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 |
title_full_unstemmed | Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 |
title_short | Selective oxidation of methacrolein to methacrylic acid over H(4)PMo(11)VO(40)/C(3)N(4)-SBA-15 |
title_sort | selective oxidation of methacrolein to methacrylic acid over h(4)pmo(11)vo(40)/c(3)n(4)-sba-15 |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9073591/ https://www.ncbi.nlm.nih.gov/pubmed/35528902 http://dx.doi.org/10.1039/c9ra06021a |
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