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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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/26/21/6650 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:56:20Z |
| format | Article |
| id | doaj.art-f1eb259b3d784ed1abb13ab10177a1d4 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-10T05:56:20Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-f1eb259b3d784ed1abb13ab10177a1d42023-11-22T21:24:29ZengMDPI AGMolecules1420-30492021-11-012621665010.3390/molecules26216650Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide NanomaterialsJames M. Thode0Daniel P. Harris1Cheng Wan2Brian M. Leonard3Department of Chemistry, University of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, USADepartment of Chemistry, University of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, USADepartment of Chemistry, University of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, USADepartment of Chemistry, University of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, USAResearch 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.https://www.mdpi.com/1420-3049/26/21/6650carbidepalladiumcatalysisnanomaterials |
| spellingShingle | James M. Thode Daniel P. Harris Cheng Wan Brian M. Leonard Synthesis of Metastable Ternary Pd-W and Pd-Mo Transition Metal Carbide Nanomaterials Molecules carbide palladium catalysis nanomaterials |
| title | 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_short | 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 |
| topic | carbide palladium catalysis nanomaterials |
| url | https://www.mdpi.com/1420-3049/26/21/6650 |
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