“…Several investigators (Richardson and Milligan, 1956;Swift et al, 1966;Rubinshtein, 1967;Bousquet et al, 1969;; Cimino et al, 1975; Agarwal and Srivastava, 1976; Vedrine et al, 1978;Lorenz et al, 1979;Wu and Hercules, 1979;Courty et al, 1980;Houlla et al, 1980) have studied the solid-state properties of Ni0-Al203 systems; the results are, however, contradictory. Moreover, systematic studies examining the relationship between solid-state properties and catalytic activity of the NiO-A1203 system have received little attention (Shiavello et al, 1971).…”