Abstract
The dehydroxylation kinetics of pseudoboehmite were studied both in the presence and absence of an electric field using an electrolysis cell in conjunction with an X-ray furnace. At higher field strengths, the onset temperature of the reaction is lowered and the decomposition rate significantly increased by the electric field, particularly at the negative electrode, in which region the crystallite size is also greater. The activation energy for the reaction is not significantly changed by electrolysis. The electrolysis mechanism is discussed in terms of cleavage of hydrogen bonds and the migration of the resulting protons to the cathode where they may be discharged as water or hydrogen, or may enter and stabilize the structure of the decomposition product.
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