A facile general strategy for synthesis of palladium-based bimetallic alloyed nanodendrites with enhanced electrocatalytic performance for methanol and ethylene glycol oxidation

2014 ◽  
Vol 2 (32) ◽  
pp. 12899-12906 ◽  
Author(s):  
Jie-Ning Zheng ◽  
Li-Li He ◽  
Fang-Yi Chen ◽  
Ai-Jun Wang ◽  
Meng-Wei Xue ◽  
...  

PdM (M = Pt, Co, and Ni) nanodendrites were fabricated by a co-reduction strategy. The nanodendrites displayed the enhanced catalytic activities and stabilities for methanol and ethylene glycol oxidation.

2018 ◽  
Vol 54 (95) ◽  
pp. 13363-13366 ◽  
Author(s):  
Tianjun Hu ◽  
Ying Wang ◽  
He Xiao ◽  
Wenwen Chen ◽  
Man Zhao ◽  
...  

Pd–Cu alloys with adjustable morphologies were synthesized and examined as nanocatalysts for electro-oxidation of ethylene glycol.


NANO ◽  
2019 ◽  
Vol 14 (06) ◽  
pp. 1950069
Author(s):  
Yunong Zhou ◽  
Chao Hu ◽  
Weidong Zhang ◽  
Hong Chen ◽  
Gang Yu

The ability to control the shape, structure and faceting characteristics of bimetallic alloy nanocrystals (NCs) has been vital for designing a catalyst with excellent activity and durability in fuel cells. However, it has remained a significant challenge to synthesize platinum–copper (Pt–Cu) alloy NCs with controlled structure and exposed facets. Herein, Pt–Cu alloy NCs with different shapes, structures and facets were synthesized via a one-step direct chemical co-reduction method employing various glucose concentrations. The results showed that the prepared Pt–Cu alloy NCs exhibited very interesting facet-dependent electrocatalytic properties for ethylene glycol oxidation. In comparison with other prepared Pt–Cu alloy NCs and commercial Pt/C, Pt–Cu alloy NPs with (111)-dominant facets showed higher electrocatalytic activity and durability for ethylene glycol oxidation. Alloy NPs showing prominent electrocatalytic performance were attributed to the predominant (111) facets on NP surfaces serving as catalytic active sites, in addition to added Cu providing unique electronic and synergistic effects. The present work highlighted that these NPs with (111)-dominant facets were indeed promising candidates as electrocatalysts with excellent activity and superior durability.


2018 ◽  
Vol 86 (13) ◽  
pp. 575-584
Author(s):  
G. Hernández-Vázquez ◽  
S. Dessources ◽  
Ivonne Liliana Alonso-Lemus ◽  
Beatriz Escobar-Morales ◽  
Edilso Reguera ◽  
...  

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