Evaluating the Effects of Precious Metal Distribution along a Monolith-Supported Catalyst for CO oxidation

2012 ◽  
Vol 51 (19) ◽  
pp. 6672-6679 ◽  
Author(s):  
Suad M. Al-Adwani ◽  
Joao Soares ◽  
William S. Epling
Keyword(s):  
Co Oxidation ◽  
Precious Metal ◽  
Supported Catalyst ◽  
Metal Distribution

Precious-metal distribution and fluid-inclusion petrography of the Elatsite porphyry copper deposit, Bulgaria

2003 ◽  
Vol 38 (3) ◽  
pp. 261-281 ◽  
Author(s):  
Mahmud Tarkian ◽  
Ulf Hünken ◽  
Margarita Tokmakchieva ◽  
Kamen Bogdanov
Keyword(s):  
Fluid Inclusion ◽  
Precious Metal ◽  
Porphyry Copper ◽  
Copper Deposit ◽  
Porphyry Copper Deposit ◽  
Metal Distribution

Rapid Monitoring of the Nature and Interconversion of Supported Catalyst Phases and of Their Influence upon Performance: CO Oxidation to CO2 by γ-Al2O3 Supported Rh Catalysts

2006 ◽  
Vol 12 (7) ◽  
pp. 1975-1985 ◽  
Author(s):  
Mark A. Newton ◽  
Andrew J. Dent ◽  
Sofia Diaz-Moreno ◽  
Steven G. Fiddy ◽  
Bhrat Jyoti ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Supported Catalyst ◽  
Rapid Monitoring

The high thermal stabilizing capability of noble metals (Pd and Au) supported by SBA-15 and the impact on CO oxidation

2021 ◽  
Author(s):  
Palle Ramana Murthy ◽  
Jing-Cai Zhang ◽  
Wei-Zhen Li
Keyword(s):  
Co Oxidation ◽  
Metal Nanoparticles ◽  
Precious Metal ◽  
Noble Metals ◽  
The Impact

Precious metal nanoparticles (NPs) are attractive for use in the field of catalysis because of their precisely controlled sizes and shapes.

Carbon and Nitrogen Composition for Non-Precious Metal Catalyst to Physical Characterization and Electrochemical Properties

2020 ◽  
Vol 867 ◽  
pp. 17-24
Author(s):  
Vuri Ayu Setyowati ◽  
Diah Susanti ◽  
Lukman Noerochim ◽  
Eriek Wahyu Restu Widodo ◽  
Mohammad Yusuf Sulaiman
Keyword(s):  
Fuel Cell ◽  
Electrochemical Properties ◽  
Precious Metal ◽  
Proton Exchange Membrane ◽  
Low Cost ◽  
Supported Catalyst ◽  
Nitrogen Addition ◽  
Proton Exchange ◽  
Metal Catalyst ◽  
X Ray

This paper investigates the physical properties and electrochemical properties of the innovative non-precious metal catalyst using different carbon types. The cathode catalyst for PEMFC (Proton Exchange Membrane Fuel Cell) is an important part of fuel cell because the reaction of the cathode is three times lower than the anode. Otherwise, the high cost of Pt/C catalyst for cathode needs to be replaced using low-cost material. Therefore, this research fabricated Pt free catalyst. FeCl3.6H2O was used as a metal precursor. Urea and PVP as a nitrogen (N) source were mixed with carbon. The variations of carbon are Graphite (Gt), Charcoal Active (CA), and Calcined Petroleum Coke (CPC). As prepared catalysts, were noted as Fe/N-Gt, Fe/N-CA, and Fe/N-CPC. Catalysts without nitrogen addition also were synthesized such as Fe-Gt, Fe-CA, and Fe-CPC for comparison. The electrochemical properties can be evaluated form Cycle Voltammograms (CV) curve. Graphite supported catalyst has anodic and cathodic peak otherwise has the lowest capacity. It means that the redox reaction occurs during CV measurement for Fe/N-Gt and Fe-Gt catalyst. Nitrogen addition of graphite supported catalyst has a higher current density than Fe-Gt catalyst. The morphology of the catalyst was identified by Scanning Electron Microscope (SEM). Different particle shape for carbon types can be observed by SEM image of obtained catalyst. Energy Dispersive X-Ray EDX to identify the chemical composition. Nitrogen-doped carbon caused the formation of Fe2O3 and it was determined by X-ray diffraction (XRD).

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