High throughput discovery of families of high activity WGS catalysts: part I--history and methodology.
State-of-art water gas shift catalysts (FeCr for high temperature shift and CuZn for low temperature shift) are not active enough to be used in fuel processors for the production of hydrogen from hydrocarbon fuels for fuel cells. The need for drastically lower catalyst volumes has triggered a search for novel WGS catalysts that are an order of magnitude more active than current systems. Novel catalytic materials for the high, medium and low temperature water gas shift reactions have been discovered by application of combinatorial methodologies. Catalyst libraries were synthesized on 4 inch wafers in 16 x 16 arrays and screened in a high throughput scanning mass spectrometer in the temperature range 200 degrees C to 400 degrees C. More than 200 wafers were screened under various conditions and more than 250,000 experiments were conducted to comprehensively examine catalyst performance for various binary, ternary and higher-order compositions.
Yaccato
Karin
K
Symyx Technologies Inc., 3100 Central Expressway, Santa Clara, CA 95051, USA.
Carhart
Ray
R
Hagemeyer
Alfred
A
Herrmann
Michael
M
Lesik
Andreas
A
Strasser
Peter
P
Volpe
Anthony
A
Turner
Howard
H
Weinberg
Henry
H
Grasselli
Robert K
RK
Brooks
Christopher J
CJ
Pigos
John M
JM
D002384:Catalysis; D020650:Combinatorial Chemistry Techniques; D005740:Gases / Q000737:chemistry*; D006358:Hot Temperature; D013058:Mass Spectrometry; D014867:Water / Q000737:chemistry*
D005740:Gases; D014867:Water