scholarly journals Preparation of a high surface area zirconium oxide for fuel cell application

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Rudzani Sigwadi ◽  
Mokhotjwa Dhlamini ◽  
Touhami Mokrani ◽  
Fulufhelo Nemavhola
Keyword(s):  
Fuel Cell ◽  
Surface Area ◽  
Zirconium Oxide ◽  
High Surface ◽  
High Surface Area ◽  
Fuel Cell Application

High surface area mesoporous titanium–zirconium oxide nanofibrous web: a heavy metal ion adsorbent

2013 ◽  
Vol 1 (19) ◽  
pp. 5847 ◽  
Author(s):  
Jonghyun Choi ◽  
Andreas Ide ◽  
Yen B. Truong ◽  
Ilias L. Kyratzis ◽  
Rachel A. Caruso
Keyword(s):  
Heavy Metal ◽  
Surface Area ◽  
Zirconium Oxide ◽  
Metal Ion ◽  
High Surface ◽  
High Surface Area ◽  
Heavy Metal Ion ◽  
Titanium Zirconium

Growth of Carbon Nanotubes on Carbon Toray Paper for Bio-Fuel Cell Applications

2007 ◽  
Author(s):  
Bhupesh Chandra ◽  
Joshua T. Kace ◽  
Yuhao Sun ◽  
S. C. Barton ◽  
James Hone
Keyword(s):  
Carbon Nanotubes ◽  
Fuel Cell ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Multiwall Carbon Nanotubes ◽  
Volume Ratio ◽  
Carbon Paper ◽  
Heating Process ◽  
Scale Production

In recent years carbon nanotubes have emerged as excellent materials for applications in which high surface area is required e.g. gas sensing, hydrogen storage, solar cells etc. Ultra-high surface to volume ratio is also a desirable property in the applications requiring enhanced catalytic activity where these high surface area materials can act as catalyst supports. One of the fastest developing areas needing such materials is fuel-cell. Here we investigate the process through which carbon nanotubes can be manufactured specifically to be used to increase the surface area of a carbon paper (Toray™). This carbon support is used in bio-catalytic fuel cell as an electrode to support enzyme which catalyzes the redox reaction. Deposition of nanotubes on these carbon fibers can result in great enhancement in the overall surface area to support the enzyme, which increases the reaction rate inside the fuel cell. The present paper describes a method to achieve ultra-thick growth of multiwall carbon nanotubes (MWNT) on a carbon Toray™ paper using a joule heating process and gas-phase catalyst. Using this method, we are able to achieve rapid, high-density, and uniform MWNT growth. This method is also potentially scalable toward larger-scale production.

High Surface Area Molybdenum Nitride Support for Fuel Cell Electrodes

2011 ◽  
Vol 158 (10) ◽  
pp. B1255 ◽  
Author(s):  
K. J. Blackmore ◽  
L. Elbaz ◽  
E. Bauer ◽  
E. L. Brosha ◽  
K. More ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Molybdenum Nitride ◽  
Fuel Cell Electrodes

Spontaneous formation of nanoparticles on electrospun fibers for fuel cell electrodes

2018 ◽  
Author(s):  
Norbert Radacsi ◽  
Fernando Diaz Campos ◽  
Calum Chisholm ◽  
Konstantinos P. Giapis
Keyword(s):  
Fuel Cell ◽  
Surface Area ◽  
State Of The Art ◽  
High Surface ◽  
High Surface Area ◽  
Cell Voltage ◽  
Dihydrogen Phosphate ◽  
Large Area ◽  
Fuel Cell Electrodes ◽  
Electrolyte Surface

Nanofibers spontaneously decorated with nanoparticles were synthesized by nozzle-free electrospinning, showcasing the latter as a novel, inexpensive and scalable method for depositing high-surface area composites. Layers of nanofibers of the intermediate-temperature proton conducting electrolyte cesium dihydrogen phosphate, (CsH2PO4, CDP), were deposited from homogeneous undersaturated solutions of CDP and polyvinylpyrrolidone (PVP), uniformly over large area substrates. Under certain conditions, the nanofibers develop CDP nanoparticles on their surface, which increases the exposed electrolyte surface area and ultimately enhances electrocatalytic performance. Indeed, fuel cell tests on cathodes made of processed nanoparticle-decorated CDP nanofibers produced higher cell voltage, as compared to state-of-the-art electrodes.

Surfactant free synthesis of high surface area Pt@PdM3 (M = Mn, Fe, Co, Ni, Cu) core/shell electrocatalysts with enhanced electrocatalytic activity and durability for PEM fuel cell applications

2016 ◽  
Vol 40 (10) ◽  
pp. 8681-8695 ◽  
Author(s):  
Karuppannan Mohanraju ◽  
Govindarajan Kousik ◽  
Louis Cindrella
Keyword(s):  
Fuel Cell ◽  
Oxygen Reduction ◽  
Surface Area ◽  
Electrocatalytic Activity ◽  
High Surface ◽  
High Surface Area ◽  
Pem Fuel Cell ◽  
Core Shell ◽  
Oxygen Reduction Reactions ◽  
Shell Nanostructures

High surface area core/shell nanostructures of Pt covered Pd alloys were synthesized and they exhibited enhanced electrocatalytic activity in oxygen reduction reactions.

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