Cargando…

Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes

The effect of Fe, Co and Ni promoters on supported MoS(2) catalysts for hydrogenation of nitroarenes were systematically investigated via experiment, characterization and DFT calculation. It was found that the addition of promoters remarkably improved the reaction activity in a sequence of Ni > C...

Descripción completa

Detalles Bibliográficos
Autores principales: Han, Wenpeng, Wang, Shanmin, Li, Xuekuan, Ma, Ben, Du, Mingxian, Zhou, Ligong, Yang, Ying, Zhang, Ye, Ge, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9049892/
https://www.ncbi.nlm.nih.gov/pubmed/35497838
http://dx.doi.org/10.1039/d0ra00320d
_version_ 1784696242747473920
author Han, Wenpeng
Wang, Shanmin
Li, Xuekuan
Ma, Ben
Du, Mingxian
Zhou, Ligong
Yang, Ying
Zhang, Ye
Ge, Hui
author_facet Han, Wenpeng
Wang, Shanmin
Li, Xuekuan
Ma, Ben
Du, Mingxian
Zhou, Ligong
Yang, Ying
Zhang, Ye
Ge, Hui
author_sort Han, Wenpeng
collection PubMed
description The effect of Fe, Co and Ni promoters on supported MoS(2) catalysts for hydrogenation of nitroarenes were systematically investigated via experiment, characterization and DFT calculation. It was found that the addition of promoters remarkably improved the reaction activity in a sequence of Ni > Co > Fe > Mo. Meanwhile Ni promoted catalyst with the best performance showed good recyclability and chemoselectivity for a wide substrate scope. The characterization results revealed that the addition of promoters decreased the interaction between Mo and support and facilitated the reductive sulfidation of Mo species to produce more coordinated unsaturated sites (CUS). DFT calculations showed that the addition of promoters increased the formation of CUS, and enhanced the adsorption of hydrogen. The influence degree of promoters followed the sequence Ni > Co > Fe > Mo, which was consistent with those of the activities. Nitrobenzene hydrogenation and hydrogen activation occurred at the S and Mo edge, respectively. The adsorbed hydrogen diffused from the Mo edge to the S edge to participate in the hydrogenation reaction. Mechanism investigation showed that the main reason for increased activity by the addition of promoters was the increase of amounts of CUS and the secondary reason was the augmentation of intrinsic activity of CUS. The present studies give a new understanding for promoter modified MoS(2) catalysts applied for hydrogenation of nitroarenes.
format Online
Article
Text
id pubmed-9049892
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher The Royal Society of Chemistry
record_format MEDLINE/PubMed
spelling pubmed-90498922022-04-29 Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes Han, Wenpeng Wang, Shanmin Li, Xuekuan Ma, Ben Du, Mingxian Zhou, Ligong Yang, Ying Zhang, Ye Ge, Hui RSC Adv Chemistry The effect of Fe, Co and Ni promoters on supported MoS(2) catalysts for hydrogenation of nitroarenes were systematically investigated via experiment, characterization and DFT calculation. It was found that the addition of promoters remarkably improved the reaction activity in a sequence of Ni > Co > Fe > Mo. Meanwhile Ni promoted catalyst with the best performance showed good recyclability and chemoselectivity for a wide substrate scope. The characterization results revealed that the addition of promoters decreased the interaction between Mo and support and facilitated the reductive sulfidation of Mo species to produce more coordinated unsaturated sites (CUS). DFT calculations showed that the addition of promoters increased the formation of CUS, and enhanced the adsorption of hydrogen. The influence degree of promoters followed the sequence Ni > Co > Fe > Mo, which was consistent with those of the activities. Nitrobenzene hydrogenation and hydrogen activation occurred at the S and Mo edge, respectively. The adsorbed hydrogen diffused from the Mo edge to the S edge to participate in the hydrogenation reaction. Mechanism investigation showed that the main reason for increased activity by the addition of promoters was the increase of amounts of CUS and the secondary reason was the augmentation of intrinsic activity of CUS. The present studies give a new understanding for promoter modified MoS(2) catalysts applied for hydrogenation of nitroarenes. The Royal Society of Chemistry 2020-02-25 /pmc/articles/PMC9049892/ /pubmed/35497838 http://dx.doi.org/10.1039/d0ra00320d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Han, Wenpeng
Wang, Shanmin
Li, Xuekuan
Ma, Ben
Du, Mingxian
Zhou, Ligong
Yang, Ying
Zhang, Ye
Ge, Hui
Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes
title Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes
title_full Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes
title_fullStr Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes
title_full_unstemmed Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes
title_short Effect of Fe, Co and Ni promoters on MoS(2) based catalysts for chemoselective hydrogenation of nitroarenes
title_sort effect of fe, co and ni promoters on mos(2) based catalysts for chemoselective hydrogenation of nitroarenes
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9049892/
https://www.ncbi.nlm.nih.gov/pubmed/35497838
http://dx.doi.org/10.1039/d0ra00320d
work_keys_str_mv AT hanwenpeng effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT wangshanmin effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT lixuekuan effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT maben effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT dumingxian effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT zhouligong effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT yangying effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT zhangye effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes
AT gehui effectoffecoandnipromotersonmos2basedcatalystsforchemoselectivehydrogenationofnitroarenes