Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole

Highly active Ru nanoparticles (Ru NPs) supported on NiFe layered double hydroxide (Ru/NiFe-LDH) are prepared easily using ultrasound-assisted reduction method without chemical reductants and stabilizers. The plentiful hydroxyls on NiFe-LDH are excited into hydrogen radicals (·H) under the action of...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Xiaoran Liu, Jiaming Shi, Xuefeng Bai, Wei Wu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Ultrafine Ru nanoparticles Ultrasound-excited N-ethylcarbazole Hydrogen storage NiFe layered double hydroxide Chemistry QD1-999 Acoustics. Sound QC221-246
Acceso en línea:	https://doaj.org/article/ba5cfddacbc743cab11eca65c6969d6c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ba5cfddacbc743cab11eca65c6969d6c
record_format	dspace
spelling	oai:doaj.org-article:ba5cfddacbc743cab11eca65c6969d6c2021-11-26T04:24:45ZUltrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole1350-417710.1016/j.ultsonch.2021.105840https://doaj.org/article/ba5cfddacbc743cab11eca65c6969d6c2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1350417721003825https://doaj.org/toc/1350-4177Highly active Ru nanoparticles (Ru NPs) supported on NiFe layered double hydroxide (Ru/NiFe-LDH) are prepared easily using ultrasound-assisted reduction method without chemical reductants and stabilizers. The plentiful hydroxyls on NiFe-LDH are excited into hydrogen radicals (·H) under the action of ultrasound for reducing Ru3+ to Ru0. Ru NPs with an average particle size of 1.26 nm highly disperse on the mesopore-like surface of NiFe-LDH, which improve the catalytic performance for N-ethylcarbazole (NEC) hydrogenation. The experimental results show that 5Ru/NiFe-LDH-300–60 exhibits the best catalytic performance with 100% conversion of NEC, 98.88% yield of dodecahydro-N-ethylcarbazole (12H-NEC) and 5.77 wt% mass hydrogen storage capacity under the reaction conditions of 110 ℃, 6 MPa and mRu:mNEC = 0.15 wt% for 80 min. The kinetics study shows that the apparent activation energy is only 25.15 kJ/mol, which is the lowest in the reported literatures. Ru complexes with O-contained groups on NiFe-LDH, improving the catalytic stability in NEC hydrogenation.Xiaoran LiuJiaming ShiXuefeng BaiWei WuElsevierarticleUltrafine Ru nanoparticlesUltrasound-excitedN-ethylcarbazoleHydrogen storageNiFe layered double hydroxideChemistryQD1-999Acoustics. SoundQC221-246ENUltrasonics Sonochemistry, Vol 81, Iss , Pp 105840- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Ultrafine Ru nanoparticles Ultrasound-excited N-ethylcarbazole Hydrogen storage NiFe layered double hydroxide Chemistry QD1-999 Acoustics. Sound QC221-246
spellingShingle	Ultrafine Ru nanoparticles Ultrasound-excited N-ethylcarbazole Hydrogen storage NiFe layered double hydroxide Chemistry QD1-999 Acoustics. Sound QC221-246 Xiaoran Liu Jiaming Shi Xuefeng Bai Wei Wu Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole
description	Highly active Ru nanoparticles (Ru NPs) supported on NiFe layered double hydroxide (Ru/NiFe-LDH) are prepared easily using ultrasound-assisted reduction method without chemical reductants and stabilizers. The plentiful hydroxyls on NiFe-LDH are excited into hydrogen radicals (·H) under the action of ultrasound for reducing Ru3+ to Ru0. Ru NPs with an average particle size of 1.26 nm highly disperse on the mesopore-like surface of NiFe-LDH, which improve the catalytic performance for N-ethylcarbazole (NEC) hydrogenation. The experimental results show that 5Ru/NiFe-LDH-300–60 exhibits the best catalytic performance with 100% conversion of NEC, 98.88% yield of dodecahydro-N-ethylcarbazole (12H-NEC) and 5.77 wt% mass hydrogen storage capacity under the reaction conditions of 110 ℃, 6 MPa and mRu:mNEC = 0.15 wt% for 80 min. The kinetics study shows that the apparent activation energy is only 25.15 kJ/mol, which is the lowest in the reported literatures. Ru complexes with O-contained groups on NiFe-LDH, improving the catalytic stability in NEC hydrogenation.
format	article
author	Xiaoran Liu Jiaming Shi Xuefeng Bai Wei Wu
author_facet	Xiaoran Liu Jiaming Shi Xuefeng Bai Wei Wu
author_sort	Xiaoran Liu
title	Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole
title_short	Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole
title_full	Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole
title_fullStr	Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole
title_full_unstemmed	Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole
title_sort	ultrasound-excited hydrogen radical from nife layered double hydroxide for preparation of ultrafine supported ru nanocatalysts in hydrogen storage of n-ethylcarbazole
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ba5cfddacbc743cab11eca65c6969d6c
work_keys_str_mv	AT xiaoranliu ultrasoundexcitedhydrogenradicalfromnifelayereddoublehydroxideforpreparationofultrafinesupportedrunanocatalystsinhydrogenstorageofnethylcarbazole AT jiamingshi ultrasoundexcitedhydrogenradicalfromnifelayereddoublehydroxideforpreparationofultrafinesupportedrunanocatalystsinhydrogenstorageofnethylcarbazole AT xuefengbai ultrasoundexcitedhydrogenradicalfromnifelayereddoublehydroxideforpreparationofultrafinesupportedrunanocatalystsinhydrogenstorageofnethylcarbazole AT weiwu ultrasoundexcitedhydrogenradicalfromnifelayereddoublehydroxideforpreparationofultrafinesupportedrunanocatalystsinhydrogenstorageofnethylcarbazole
_version_	1718409923704913920

Ultrasound-excited hydrogen radical from NiFe layered double hydroxide for preparation of ultrafine supported Ru nanocatalysts in hydrogen storage of N-ethylcarbazole

Ejemplares similares