Alloying in inverse CeO2/Pd nanoparticles to enhance the electrocatalytic activity for the formate oxidation reaction

2019 ◽  
Vol 7 (40) ◽  
pp. 22996-23007 ◽  
Author(s):  
Quan Tang ◽  
Fuyi Chen ◽  
Tao Jin ◽  
Longfei Guo ◽  
Qiao Wang ◽  
...  

Inverse CeO2/Pd catalysts with Pd/Ce alloying enhanced FOR activity by the electronic effect of Ce and the oxophilic effect of CeO2.

2016 ◽  
Vol 4 (22) ◽  
pp. 8898-8904 ◽  
Author(s):  
Lirui Nan ◽  
Zetan Fan ◽  
Wenbo Yue ◽  
Qiao Dong ◽  
Lisha Zhu ◽  
...  

Pd nanoparticles with a trace of SnO2 are prepared on a novel graphene-based porous carbon and they show dramatically improved electrocatalytic activity and durability for methanol oxidation compared to porous carbon supported Pd catalysts with SnO2 or graphene-based porous carbon supported Pd catalysts without SnO2.


2018 ◽  
Vol 7 (2) ◽  
pp. 2830-2836 ◽  
Author(s):  
Juan Bai ◽  
Qi Xue ◽  
Yue Zhao ◽  
Jia-Xing Jiang ◽  
Jing-Hui Zeng ◽  
...  

2021 ◽  
Vol 11 (3) ◽  
pp. 1315
Author(s):  
Salma Jadali ◽  
Mohammad Ali Kamyabi ◽  
José Solla-Gullón ◽  
Enrique Herrero

The understanding of electrocatalytic activity and poisoning resistance properties of Pt and Pd nanoparticles, recognized as the best electrocatalysts for the ethanol oxidation reaction, is an essential step for the commercialization of direct ethanol fuel cells (DEFCs). In this paper, mono and bimetallic Pt and Pd nanoparticles with different atomic ratios have been synthesized to study their electrocatalytic properties for an ethanol oxidation reaction in alkaline solutions. The different nanoparticles were physiochemically characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The electrochemical characterization was performed by cyclic voltammetry and chronoamperometry measurements. The electrochemical measurements indicate that Pt nanoparticles have much higher electrocatalytic activity for ethanol oxidation than Pd nanoparticles. The studies with bimetallic PtPd nanoparticles showed a significant impact of their composition on the ethanol oxidation. Thus, the highest electrocatalytic activity and poisoning resistance properties were obtained for Pt3Pd2 nanoparticles. Moreover, this study demonstrates that the poisoning of the catalyst surface through ethanol oxidation is related to the prevalence of the acetaldehyde–acetate route and the polymerization of acetaldehyde through aldol condensation in the alkaline media.


2021 ◽  
Vol 281 ◽  
pp. 116925
Author(s):  
Suba Lakshmi Madaswamy ◽  
M. Alfakeer ◽  
Aboud Ahmed Awadh Bahajjaj ◽  
Mohamed Ouladsmane ◽  
Saikh Mohammad Wabaidur ◽  
...  

2021 ◽  
pp. 138465
Author(s):  
Zhen Li ◽  
Fuyi Chen ◽  
Weiqi Bian ◽  
Bo Kou ◽  
Qiao Wang ◽  
...  

2019 ◽  
Vol 21 (40) ◽  
pp. 22598-22610 ◽  
Author(s):  
Nan Zhang ◽  
Fuyi Chen ◽  
Longfei Guo

We demonstrate for the first time that the Pd1Ag single-atom alloys exhibit a high catalytic activity for formate oxidation reaction.


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