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Tungstated zirconias consist typically of WO x species deposited on zirconia support. Additives like Si can be added to stabilize the catalyst surface area. The aim of this work is to identify the location of the Si (surface or bulk) as a function of W addition. Zirconia doped with 1.2wt% Si remained purely tetragonal and exhibited a high specific surface area (150m 2 /g) following...
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