Résumé
Highly monodispersed platinum-based nanoalloys are the best-known catalysts for the oxygen reduction reaction. Although certainly promising, the durability and stability are among the main requirements for commercializing fuel cell electrocatalysts in practical applications. Herein, we synthesize highly stable, durable and catalytic active monodispersed PtPd nanoparticles encapsulated in a unique one particle at one cell structure by adjusting the viscosity of solvents using mesocellular foam. PtPd nanoparticles in mesocellular carbon foam exhibit an excellent electrocatalytic activity (over 4 times mass and specific activities than the commercial Pt/C catalyst). Most importantly, this nanocatalyst shows no obvious change of structure and only a 29.5% loss in electrochemically active surface area after 5000 potential sweeps between 0.6 and 1.1. V versus reversible hydrogen electrode cycles.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 214-222 |
| Nombre de pages | 9 |
| journal | Nano Energy |
| Volume | 8 |
| Les DOIs | |
| état | Publié - 1 janv. 2014 |
Empreinte digitale
Citer ceci
}
One particle at one cell : Highly monodispersed PtPd bimetallic nanoparticles for enhanced oxygen reduction reaction. / Ying, Jie; Yang, Xiao Yu; Hu, Zhi Yi; Mu, Shi Chun; Janiak, Christoph; Geng, Wei; Pan, Mu; Ke, Xiaoxing; Van Tendeloo, Gustaaf; Su, Bao Lian.
Dans: Nano Energy, Vol 8, 01.01.2014, p. 214-222.Résultats de recherche: Contribution à un journal/une revue › Article
TY - JOUR
T1 - One particle at one cell
T2 - Highly monodispersed PtPd bimetallic nanoparticles for enhanced oxygen reduction reaction
AU - Ying, Jie
AU - Yang, Xiao Yu
AU - Hu, Zhi Yi
AU - Mu, Shi Chun
AU - Janiak, Christoph
AU - Geng, Wei
AU - Pan, Mu
AU - Ke, Xiaoxing
AU - Van Tendeloo, Gustaaf
AU - Su, Bao Lian
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Highly monodispersed platinum-based nanoalloys are the best-known catalysts for the oxygen reduction reaction. Although certainly promising, the durability and stability are among the main requirements for commercializing fuel cell electrocatalysts in practical applications. Herein, we synthesize highly stable, durable and catalytic active monodispersed PtPd nanoparticles encapsulated in a unique one particle at one cell structure by adjusting the viscosity of solvents using mesocellular foam. PtPd nanoparticles in mesocellular carbon foam exhibit an excellent electrocatalytic activity (over 4 times mass and specific activities than the commercial Pt/C catalyst). Most importantly, this nanocatalyst shows no obvious change of structure and only a 29.5% loss in electrochemically active surface area after 5000 potential sweeps between 0.6 and 1.1. V versus reversible hydrogen electrode cycles.
AB - Highly monodispersed platinum-based nanoalloys are the best-known catalysts for the oxygen reduction reaction. Although certainly promising, the durability and stability are among the main requirements for commercializing fuel cell electrocatalysts in practical applications. Herein, we synthesize highly stable, durable and catalytic active monodispersed PtPd nanoparticles encapsulated in a unique one particle at one cell structure by adjusting the viscosity of solvents using mesocellular foam. PtPd nanoparticles in mesocellular carbon foam exhibit an excellent electrocatalytic activity (over 4 times mass and specific activities than the commercial Pt/C catalyst). Most importantly, this nanocatalyst shows no obvious change of structure and only a 29.5% loss in electrochemically active surface area after 5000 potential sweeps between 0.6 and 1.1. V versus reversible hydrogen electrode cycles.
KW - Highly monodispersed nanoparticles
KW - Mesoporous materials
KW - One particle at one cell structure
KW - Oxygen reduction reaction
KW - PtPd nanoalloy
UR - http://www.scopus.com/inward/record.url?scp=84903726267&partnerID=8YFLogxK
U2 - 10.1016/j.nanoen.2014.06.010
DO - 10.1016/j.nanoen.2014.06.010
M3 - Article
AN - SCOPUS:84903726267
VL - 8
SP - 214
EP - 222
JO - Nano Energy
JF - Nano Energy
SN - 2211-2855
ER -