DocumentCode :
1241011
Title :
Plasma-enhanced metal-organic chemical vapor deposition (PEMOCVD) of catalytic coatings for fuel cell reformers
Author :
Dhar, Romit ; Pedrow, Patrick D. ; Liddell, KNona C. ; Ming, Quentin ; Moeller, Trevor M. ; Osman, Mohamed A.
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA, USA
Volume :
33
Issue :
1
fYear :
2005
Firstpage :
138
Lastpage :
146
Abstract :
Fuel cells have the potential to solve several major challenges in the global energy economy: dependence on petroleum imports, degradation of air quality, and greenhouse gas emissions. Using catalyst-based reformer technology, hydrogen for fuel cells can be derived from infrastructure fuels such as gasoline, diesel, and natural gas. Platinum is one catalyst that is known to be very effective in hydrogen reformers. Reformer size can be reduced when there is more efficient catalyst loading onto the substrate. In this experimental work, platinum was loaded onto γ-alumina coated substrates by plasma-polymerization followed by heat treatment. Vapor from a platinum-containing organic precursor was converted to plasma and deposited onto the substrate. The plasma-polymerized film was then calcined to drive off organic material, leaving behind a catalyst-loaded substrate. The plasma-polymerized organic film and the final heat-treated catalyst-loaded substrate surface were characterized by scanning electron microscopy (SEM) and impedance spectroscopy. Energy dispersive spectroscopy (EDS) was used to detect the presence of the catalyst on the substrate.
Keywords :
MOCVD; catalysts; coatings; fuel cells; heat treatment; plasma CVD; plasma chemistry; platinum; polymerisation; scanning electron microscopy; Al2O3; Pt; air quality degradation; catalytic coatings; energy dispersive spectroscopy; fuel cell reformers; global energy economy; greenhouse gas emissions; heat treatment; hydrogen reformers; impedance spectroscopy; infrastructure fuels; petroleum imports; plasma polymerization; plasma-enhanced metal-organic chemical vapor deposition; platinum; scanning electron microscopy; Chemical vapor deposition; Coatings; Fuel cells; Hydrogen; Petroleum; Plasma chemistry; Plasma materials processing; Platinum; Scanning electron microscopy; Substrates;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.2004.841620
Filename :
1396136
Link To Document :
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