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Carbon nanobowls supported ultrafine palladium nanocrystals: A highly active electrocatalyst for the formic acid oxidation.
- Source :
-
International Journal of Hydrogen Energy . Mar2017, Vol. 42 Issue 12, p8255-8263. 9p. - Publication Year :
- 2017
-
Abstract
- The carbon supporting materials play a crucial role for improving the utilization and electrocatalytic activity of noble metal nanocrystals. In this work, the high-quality carbon nanobowls (CNBs) with high surface area are synthesized successfully by a simple sol–gel synthetic method. Then, the as-prepared CNBs are used as advanced supporting material to anchor Pd nanocrystals by a facile homogeneous precipitation–reduction method. The as-prepared CNBs supported Pd nanocrystals (Pd/CNBs) nanohybrids are examined thoroughly by various physical characterizations. Physical measurements display that the CNBs facilitate the dispersion and anchorage of Pd nanocrystals due to their high surface area and abundant O-containing surface groups. Cyclic voltammetry, electrochemical impedance spectroscopy, and chronoamperometry measurements reveal that the Pd/CNBs nanohybrids have higher electrocatalytic activity and durability for the formic acid electro oxidation than Vulcan XC-72 carbon supported Pd nanocrystals (Pd/C-72) nanohybrids and commercial Pd/C electrocatalyst. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CARBON
*PALLADIUM
*NANOCRYSTALS
*ELECTROCATALYSTS
*FORMIC acid
Subjects
Details
- Language :
- English
- ISSN :
- 03603199
- Volume :
- 42
- Issue :
- 12
- Database :
- Academic Search Index
- Journal :
- International Journal of Hydrogen Energy
- Publication Type :
- Academic Journal
- Accession number :
- 123373951
- Full Text :
- https://doi.org/10.1016/j.ijhydene.2016.12.136