Reusable and active Pt@Co-NC catalysts for oxidation of glycerol
| Autor: | Tian Tang, Chun-Ling Liu, Chunli Xu, Yini Wang, Wen-Sheng Dong |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science 060102 archaeology Renewable Energy Sustainability and the Environment 020209 energy Composite number 06 humanities and the arts 02 engineering and technology Catalysis chemistry.chemical_compound Polyol chemistry Chemical engineering Transmission electron microscopy 0202 electrical engineering electronic engineering information engineering Galvanic cell Glycerol 0601 history and archaeology Reusability Replacement method |
| Zdroj: | Renewable Energy. 153:472-479 |
| ISSN: | 0960-1481 |
| Popis: | Exploring active Pt catalysts is essential both in academic and economic for glycerol oxidation. In this paper, a method for the synthesis of highly efficient Pt@Co-NC catalyst for glycerol oxidation was studied. Pt@Co-NC was synthesized by pyrolyzing the composite of Pt nanoparticles (NPs) encapsulated in ZIF-67 (Pt@ZIF-67). Transmission electron microscopy analysis showed that Pt existed in the form of PtCo NPs and PtCo alloys, and X-ray photoelectron spectra analysis demonstrated the interaction of Pt and Co-NC. These results indicated that the activity of Pt@Co-NC by this work was superior to that of Pt/Co-NC by conventional methods, including the polyol reduction method, galvanic replacement method, and sol-gel method. Pt@Co-NC was used five times without deactivation, suggesting its high reusability. The high reusability and activity of Pt@Co-NC were attributed to its structure caused by the synthetic methods. The pore confinement and the interaction of Pt and Co-NC played a key role in the high reusability and activity of Pt@Co-NC. |
| Databáze: | OpenAIRE |
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