Novel chemical synthesis of Pt–Ru–P electrocatalysts by hypophosphite deposition for enhanced methanol oxidation and CO tolerance in direct methanol fuel cell

2006 ◽  
Vol 8 (8) ◽  
pp. 1280-1286 ◽  
Author(s):  
Xinzhong Xue ◽  
Junjie Ge ◽  
Changpeng Liu ◽  
Wei Xing ◽  
Tianhong Lu
Keyword(s):  
Fuel Cell ◽  
Chemical Synthesis ◽  
Methanol Oxidation ◽  
Direct Methanol Fuel Cell ◽  
Co Tolerance ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Determination of the efficiency of methanol oxidation in a direct methanol fuel cell

2016 ◽  
Vol 199 ◽  
pp. 210-217 ◽  
Author(s):  
Pasha Majidi ◽  
Rakan M. Altarawneh ◽  
Nicholas D.W. Ryan ◽  
Peter G. Pickup
Keyword(s):  
Fuel Cell ◽  
Methanol Oxidation ◽  
Direct Methanol Fuel Cell ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Hydrothermal synthesis of PtRu nanoparticles supported on graphene sheets for methanol oxidation in direct methanol fuel cell

2011 ◽  
Vol 65 (21-22) ◽  
pp. 3281-3284 ◽  
Author(s):  
Seok Hee Lee ◽  
Nitul Kakati ◽  
Seung Hyun Jee ◽  
Jatindranath Maiti ◽  
Young-Soo Yoon
Keyword(s):  
Fuel Cell ◽  
Hydrothermal Synthesis ◽  
Methanol Oxidation ◽  
Direct Methanol Fuel Cell ◽  
Graphene Sheets ◽  
Direct Methanol ◽  
Methanol Fuel Cell ◽  
Ptru Nanoparticles

PtRu-SiO2-TiO2/C Anode Electrocatalyst for Direct Methanol Fuel Cell

2011 ◽  
Vol 287-290 ◽  
pp. 1369-1374 ◽  
Author(s):  
Jian Feng Ju ◽  
Dong Hui Wu ◽  
Yu Jun Shi
Keyword(s):  
Fuel Cell ◽  
Methanol Oxidation ◽  
Direct Methanol Fuel Cell ◽  
Nitrogen Adsorption ◽  
Surface Characteristics ◽  
Cyclic Voltammograms ◽  
Oxidation Activity ◽  
Transmission Electron ◽  
Direct Methanol ◽  
Methanol Fuel Cell

The PtRu-SiO2-TiO2/C anode electrocatalyst ( loading 10wt% PtRu ) of direct methanol fuel cell is prepared by the surface reductive deposition method, using Vulcan XC-72 carbon black coated with nanometer SiO2-TiO2 (SiO2-TiO2/C) as the isotopic carrier. The surface characteristics of nanometer SiO2-TiO2 is studied through nitrogen adsorption, which shows that it is of porous structure together with large surface area, that is benefit to enhance the activity of SiO2-TiO2 and the dispersion of PtRu nanoparticle on the carrier of SiO2-TiO2/C. X-ray diffraction( XRD ) and transmission electron microscopy( TEM ) are used to characterize the catalyst. The PtRu nanoparticle homodisperse in SiO2-TiO2/C carrier with diameter around 2.4 nm. Cyclic voltammograms and chronoamperograms are conducted to compare the electrochemical methanol oxidation activity of the PtRu-SiO2-TiO2/C catalyst with the commercial PuRu/C catalyst ( 20 wt% of PtRu ). The results show that PtRu-SiO2-TiO2/C has higher catalytic activity and anti-poisoning ability for methanol oxidation, the addition of porous SiO2-TiO2 can replace the PtRu to some extent, comparing with the commercial PuRu/C catalyst, not only the loading of PtRu has been cut down 50%, but also the electro-oxidizing activity of methanol improved. The electro-oxidizing mechanism is basically analyzed.

Electrocatalytic performance of Pt/Ru/Sn/W fullerene electrode for methanol oxidation in direct methanol fuel cell

2013 ◽  
Vol 41 (1) ◽  
pp. 91-95 ◽  
Author(s):  
Karimi Mohammad ◽  
Aboufazeli Forouzan ◽  
Zhad Hamid Reza Lotfi Zadeh ◽  
Sadeghi Omid ◽  
Najafi Ezzatollah
Keyword(s):  
Fuel Cell ◽  
Methanol Oxidation ◽  
Direct Methanol Fuel Cell ◽  
Electrocatalytic Performance ◽  
Direct Methanol ◽  
Methanol Fuel Cell

scholarly journals Materializing efficient methanol oxidation via electron delocalization in nickel hydroxide nanoribbon

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Xiaopeng Wang ◽  
Shibo Xi ◽  
Wee Siang Vincent Lee ◽  
Pengru Huang ◽  
Peng Cui ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Methanol Oxidation ◽  
Nickel Hydroxide ◽  
Direct Methanol Fuel Cell ◽  
Platinum Group Metal ◽  
Oxidation Catalyst ◽  
Oxidation Activity ◽  
Onset Potential ◽  
Direct Methanol ◽  
Methanol Fuel Cell

Abstract Achieving a functional and durable non-platinum group metal-based methanol oxidation catalyst is critical for a cost-effective direct methanol fuel cell. While Ni(OH)2 has been widely studied as methanol oxidation catalyst, the initial process of oxidizing Ni(OH)2 to NiOOH requires a high potential of 1.35 V vs. RHE. Such potential would be impractical since the theoretical potential of the cathodic oxygen reduction reaction is at 1.23 V. Here we show that a four-coordinated nickel atom is able to form charge-transfer orbitals through delocalization of electrons near the Fermi energy level. As such, our previously reported periodically arranged four-six-coordinated nickel hydroxide nanoribbon structure (NR-Ni(OH)2) is able to show remarkable methanol oxidation activity with an onset potential of 0.55 V vs. RHE and suggests the operability in direct methanol fuel cell configuration. Thus, this strategy offers a gateway towards the development of high performance and durable non-platinum direct methanol fuel cell.

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