Cargando…

Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel

Flower-like cobalt–molybdenum mixed-oxide microspheres (CoMo-FMs) with hierarchical architecture were successfully synthesized via a hydrothermal process and subsequent calcination step. The characterization results show that CoMo-FMs were assembled from ultrathin mesoporous nanosheets with thicknes...

Descripción completa

Detalles Bibliográficos
Autores principales: Cao, Xinxiang, Tong, Ruijian, Wang, Jingyuan, Zhang, Lan, Wang, Yulan, Lou, Yan, Wang, Xiaomeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10343870/
https://www.ncbi.nlm.nih.gov/pubmed/37446735
http://dx.doi.org/10.3390/molecules28135073
_version_ 1785072839247790080
author Cao, Xinxiang
Tong, Ruijian
Wang, Jingyuan
Zhang, Lan
Wang, Yulan
Lou, Yan
Wang, Xiaomeng
author_facet Cao, Xinxiang
Tong, Ruijian
Wang, Jingyuan
Zhang, Lan
Wang, Yulan
Lou, Yan
Wang, Xiaomeng
author_sort Cao, Xinxiang
collection PubMed
description Flower-like cobalt–molybdenum mixed-oxide microspheres (CoMo-FMs) with hierarchical architecture were successfully synthesized via a hydrothermal process and subsequent calcination step. The characterization results show that CoMo-FMs were assembled from ultrathin mesoporous nanosheets with thicknesses of around 4.0 nm, providing the composite with a large pore volume and a massive surface area. The synthesized CoMo-FMs were employed as catalysts for the aerobic oxidative desulfurization (AODS) of fuel, and the reaction results show that the optimal catalyst (CoMo-FM-2) demonstrated an outstanding catalytic performance. Over CoMo-FM-2, various thiophenic sulfides could be effective removed at 80–110 °C under an atmospheric pressure, and a complete conversion of sulfides could be achieved in at least six consecutive cycles without a detectable change in chemical compositions. Further, the catalytic mechanism was explored by conducting systemic radical trapping and transformation experiments, and the excellent catalytic performance for CoMo-FMs should be mainly due to the synergistic effect of Mo and Co elements.
format Online
Article
Text
id pubmed-10343870
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-103438702023-07-14 Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel Cao, Xinxiang Tong, Ruijian Wang, Jingyuan Zhang, Lan Wang, Yulan Lou, Yan Wang, Xiaomeng Molecules Article Flower-like cobalt–molybdenum mixed-oxide microspheres (CoMo-FMs) with hierarchical architecture were successfully synthesized via a hydrothermal process and subsequent calcination step. The characterization results show that CoMo-FMs were assembled from ultrathin mesoporous nanosheets with thicknesses of around 4.0 nm, providing the composite with a large pore volume and a massive surface area. The synthesized CoMo-FMs were employed as catalysts for the aerobic oxidative desulfurization (AODS) of fuel, and the reaction results show that the optimal catalyst (CoMo-FM-2) demonstrated an outstanding catalytic performance. Over CoMo-FM-2, various thiophenic sulfides could be effective removed at 80–110 °C under an atmospheric pressure, and a complete conversion of sulfides could be achieved in at least six consecutive cycles without a detectable change in chemical compositions. Further, the catalytic mechanism was explored by conducting systemic radical trapping and transformation experiments, and the excellent catalytic performance for CoMo-FMs should be mainly due to the synergistic effect of Mo and Co elements. MDPI 2023-06-28 /pmc/articles/PMC10343870/ /pubmed/37446735 http://dx.doi.org/10.3390/molecules28135073 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cao, Xinxiang
Tong, Ruijian
Wang, Jingyuan
Zhang, Lan
Wang, Yulan
Lou, Yan
Wang, Xiaomeng
Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel
title Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel
title_full Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel
title_fullStr Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel
title_full_unstemmed Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel
title_short Synthesis of Flower-Like Cobalt–Molybdenum Mixed-Oxide Microspheres for Deep Aerobic Oxidative Desulfurization of Fuel
title_sort synthesis of flower-like cobalt–molybdenum mixed-oxide microspheres for deep aerobic oxidative desulfurization of fuel
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10343870/
https://www.ncbi.nlm.nih.gov/pubmed/37446735
http://dx.doi.org/10.3390/molecules28135073
work_keys_str_mv AT caoxinxiang synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel
AT tongruijian synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel
AT wangjingyuan synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel
AT zhanglan synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel
AT wangyulan synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel
AT louyan synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel
AT wangxiaomeng synthesisofflowerlikecobaltmolybdenummixedoxidemicrospheresfordeepaerobicoxidativedesulfurizationoffuel