PtRu Nanoparticles on Nitrogen-Doped Carbon Nanotubes As Efficient Anode for High Performance Direct Methanol Fuel Cells

2020 ◽  
Vol MA2020-02 (53) ◽  
pp. 3839-3839
Author(s):  
Archana Sekar ◽  
Nathaniel Metzger ◽  
Ayyappan Elangovan ◽  
Xianglin Li ◽  
Jun Li
NANO ◽  
2016 ◽  
Vol 11 (02) ◽  
pp. 1650022 ◽  
Author(s):  
Chunhui Tan ◽  
Juhui Sa ◽  
Feipeng Cai ◽  
Bo Jiang ◽  
Gai Yang ◽  
...  

PtRu nanoparticles (NPs) supported on acid treated multiwall carbon nanotubes (Pt1Ru1/MWCNTs) were prepared by a modified polyol method without adding any other surfactant or protective agent. The structural and compositional properties of the as-obtained samples were characterized by transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDX), X-ray diffraction (XRD) and X-ray photoelectron (XPS) spectroscopy. The electrocatalytic performance of the catalyst was evaluated by cyclic voltammetry (CV), CO stripping voltammetry and chronoamperometry, indicating a high catalytic activity, excellent CO tolerance and stability for methanol oxidation. Interestingly, a series of accurate controllable experiments have been designed to explore the enhancement mechanism of Pt1Ru1/MWCNTs for methanol oxidation reaction. Most importantly, Pt1Ru1/MWCNTs composites were used as an anode catalyst in the direct methanol fuel cells (DMFCs) exhibiting outstanding power density (126.1 mW/cm[Formula: see text] 1.7 times higher than that of the commercial catalyst of Pt1Ru1/C (74.1 mW/cm[Formula: see text] (E-TEK).


RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39767-39772 ◽  
Author(s):  
Jiuxiao Sun ◽  
Xinxin Yu ◽  
Quan Zhang ◽  
Ying Ling ◽  
Zehui Yang

Stable CO anti-poisoning and high durability of an anodic electrocatalyst are very important for direct methanol fuel cells (DMFCs).


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