Composition-Controllable AuPt Alloy Catalysts for Electrooxidation of Formic Acid
| Autor: | Yong-Jun Li, Ji-Long Sang, Ling Cai, Wen-Jin Shen |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Formic acid fuel cell
Materials science Formic acid Alloy Nanoparticle 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound chemistry Chemical engineering Sodium citrate engineering Composition (visual arts) 0210 nano-technology |
| Zdroj: | Russian Journal of Electrochemistry. 54:809-816 |
| ISSN: | 1608-3342 1023-1935 |
| DOI: | 10.1134/s1023193518110071 |
| Popis: | AuPt alloy catalysts with various compositions have been successfully prepared simply by one-step co-reduction of Au and Pt precursors involving sodium citrate as stabilizer and reductant. XRD, TEM and EDX element mapping analysis confirmed that the resulting AuPt nanoparticles are single-phase alloys rather than random mixtures of tiny Au and Pt particles. Compared with Pt/C, alloying Au with Pt can effectively alter the kinetic process of formic acid oxidation, reducing the generation of CO-like intermediates. Au81Pt19 displays superior electrocatalytic activity and durability, ~11 times in the mass activity better than commercial Pt/C and may be of practical significance for the commercialization of direct formic acid fuel cell. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink