A composite material comprises: (a) a porous crystalline inorganic oxide
material comprising a first framework structure defining a first set of
uniformly distributed pores having an average cross-sectional dimension
of from 0.3 to less than 2 nanometers and comprising a second framework
structure defining a second set of uniformly distributed pores having an
average cross-sectional dimension of from 2 to 200 nanometers and (b) a
co-catalyst within the second set of pores of the porous crystalline
inorganic oxide material (a).