| 000 | 02216nam a2200301Ia 4500 | ||
|---|---|---|---|
| 003 | MX-MdCICY | ||
| 005 | 20250626093125.0 | ||
| 040 | _cCICY | ||
| 090 | _aB-21788 | ||
| 245 | 1 | 0 | _aPorous biochar aerogel loaded PtFe alloys derived from natural marine polysaccharide for efficient oxygen reduction |
| 490 | 0 | _aMaterials Today Sustainability, 20, p.100222, 2022 | |
| 500 | _aArtículo | ||
| 520 | 3 | _aLowering the Pt loading of Pt-based materials is a promising strategy to explore excellent oxygen reduction reaction (ORR) electrocatalysts. One surprising approach is to develop Pt-alloys, which can effectively reduce the usage of Pt and induced highly catalytic activity through regulation effect between multimetals. Herein, the N-doped porous biochar aerogel/reduced graphene oxide loaded PtFe alloys (PtFe/NC-rGO (Pt1Fe5)) with low Pt loading (with a Pt content of 7.54 wt percent) were prepared using natural marine polysaccharide-alginate as precursor through simple pyrolysis process. The biochar aerogel as an ideal carbon support shows an excellent electrical conductivity as well as a high specific surface area utilized for mass transport together with ion diffusion during ORR. Consequently, the PtFe/NC-rGO (Pt1Fe5) exhibits highly excellent ORR catalytic activity with respect to the pure Pt/NC-rGO together with the commercial Pt/C catalysts, with good half-wave potentials of 0.81 and 0.87 V vs. RHE in 0.5 M H2SO4 as well as 0.1 M KOH solutions, respectively. The strategy gives a new way to construct Ptbased alloy ORR electrocatalysts with low Pt consumption and the easy availability of biomass raw materials for PtFe/NC-rGO ensures its potential for large-scale application. | |
| 650 | 1 | 4 | _aLOW PT LOADING |
| 650 | 1 | 4 | _aALLOYS |
| 650 | 1 | 4 | _aORR |
| 650 | 1 | 4 | _aMARINE BIOMASS |
| 700 | 1 | 2 | _aCai, Y. |
| 700 | 1 | 2 | _aLiu, H. |
| 700 | 1 | 2 | _aChen, X. |
| 700 | 1 | 2 | _aYang, X. |
| 700 | 1 | 2 | _aZhang, L. |
| 700 | 1 | 2 | _aLi, D. |
| 700 | 1 | 2 | _aYang, D. |
| 856 | 4 | 0 |
_uhttps://drive.google.com/file/d/1jpjGlIpQfT52rYMTohqSO74fP61MqPMp/view?usp=drive_link _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
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