Porous dendritic PtRuPd nanospheres with enhanced catalytic activity and durability for ethylene glycol oxidation and oxygen reduction reactions
| Autor: | Jiu-Ju Feng, Qian-Li Zhang, Ai-Jun Wang, Jiao-Jiao Duan, Hua-Jie Niu, Hong Huang, Xiao-Xuan Zheng |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Aqueous solution
Chemistry Reducing agent 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst Ascorbic acid 01 natural sciences Redox Nanomaterial-based catalyst 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Catalysis Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry 0210 nano-technology Ethylene glycol Nuclear chemistry |
| Zdroj: | Journal of Colloid and Interface Science. 560:467-474 |
| ISSN: | 0021-9797 |
| DOI: | 10.1016/j.jcis.2019.10.082 |
| Popis: | Developing highly active and durable catalyst is of pivotal importance in fuel cells, owing to excessive consumption of fossil fuels. Herein, porous dendritic PtRuPd nanospheres (PtRuPd NSs) were synthesized by a facile hexadecylpyridinium chloride (HDPC)-mediated one-pot aqueous method with ascorbic acid (AA) as the reducing agent. The as-obtained PtRuPd NSs displayed high-efficient catalytic activity and durability for ethylene glycol oxidation reaction (EGOR) and oxygen reduction reaction (ORR). It exhibited enlarged mass activity (MA, 1.368 A mg−1) compared to commercial Pt/C (1.100 A mg−1) for EGOR. Besides, the onset potential (Eonset, 0.930 V) and half-wave potential (E1/2, 0.852 V) of PtRuPd NSs were more positive relative to homemade PtPd NSs (0.905 and 0.840 V), PdRu NSs (0.895 and 0.839 V), and commercial Pt/C (0.910 and 0.822 V) toward ORR. This work provides some valuable guidelines for producing novel trimetallic nanocatalysts in fuel cells. |
| Databáze: | OpenAIRE |
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