Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials

Research and catalytic testing of platinum group transition metal carbides have been extremely limited due to a lack of reliable, simple synthetic approaches. Powder samples have been reported to phase separately above 1%, and only thin-film samples have been reported to have appreciable amounts of...

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Autores principales:	James M. Thode, Daniel P. Harris, Cheng Wan, Brian M. Leonard
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	carbide palladium catalysis nanomaterials Organic chemistry QD241-441
Acceso en línea:	https://doaj.org/article/f1eb259b3d784ed1abb13ab10177a1d4
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spelling	oai:doaj.org-article:f1eb259b3d784ed1abb13ab10177a1d42021-11-11T18:37:07ZSynthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials10.3390/molecules262166501420-3049https://doaj.org/article/f1eb259b3d784ed1abb13ab10177a1d42021-11-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/21/6650https://doaj.org/toc/1420-3049Research and catalytic testing of platinum group transition metal carbides have been extremely limited due to a lack of reliable, simple synthetic approaches. Powder samples have been reported to phase separately above 1%, and only thin-film samples have been reported to have appreciable amounts of precious metal doping. Herein, we demonstrated, through the simple co-precipitation of Pd and W or Mo precursors and their subsequent annealing, the possibility to readily form ternary carbide powders. During the investigation of the Pd-W ternary system, we discovered a new hexagonal phase, (PdW)<sub>2</sub>C, which represents the first non-cubic Pd ternary carbide. Additionally, the solubility of Pd in the Pd-W-C and Pd-Mo-C systems was increased to 24 and 32%, respectively. As a potential application, these new materials show an enhanced activity for the methanol oxidation reaction (MOR) compared to industrial Pd/C.James M. ThodeDaniel P. HarrisCheng WanBrian M. LeonardMDPI AGarticlecarbidepalladiumcatalysisnanomaterialsOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6650, p 6650 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbide palladium catalysis nanomaterials Organic chemistry QD241-441
spellingShingle	carbide palladium catalysis nanomaterials Organic chemistry QD241-441 James M. Thode Daniel P. Harris Cheng Wan Brian M. Leonard Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials
description	Research and catalytic testing of platinum group transition metal carbides have been extremely limited due to a lack of reliable, simple synthetic approaches. Powder samples have been reported to phase separately above 1%, and only thin-film samples have been reported to have appreciable amounts of precious metal doping. Herein, we demonstrated, through the simple co-precipitation of Pd and W or Mo precursors and their subsequent annealing, the possibility to readily form ternary carbide powders. During the investigation of the Pd-W ternary system, we discovered a new hexagonal phase, (PdW)<sub>2</sub>C, which represents the first non-cubic Pd ternary carbide. Additionally, the solubility of Pd in the Pd-W-C and Pd-Mo-C systems was increased to 24 and 32%, respectively. As a potential application, these new materials show an enhanced activity for the methanol oxidation reaction (MOR) compared to industrial Pd/C.
format	article
author	James M. Thode Daniel P. Harris Cheng Wan Brian M. Leonard
author_facet	James M. Thode Daniel P. Harris Cheng Wan Brian M. Leonard
author_sort	James M. Thode
title	Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials
title_short	Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials
title_full	Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials
title_fullStr	Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials
title_full_unstemmed	Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials
title_sort	synthesis of metastable ternary pd-w and pd-mo transition metal carbide nanomaterials
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/f1eb259b3d784ed1abb13ab10177a1d4
work_keys_str_mv	AT jamesmthode synthesisofmetastableternarypdwandpdmotransitionmetalcarbidenanomaterials AT danielpharris synthesisofmetastableternarypdwandpdmotransitionmetalcarbidenanomaterials AT chengwan synthesisofmetastableternarypdwandpdmotransitionmetalcarbidenanomaterials AT brianmleonard synthesisofmetastableternarypdwandpdmotransitionmetalcarbidenanomaterials
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Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials

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