  The spatiotemporal pattern formation is studied in the catalytic carbon
monoxide oxidation reaction that takes into account the diffusion processes
over the Pt(110) surface, which may contain structurally different areas. These
areas are formed during CO-induced transition from a reconstructed phase with
$1\times2$ geometry of the overlayer to a bulk-like ($1\times1$) phase with
square atomic arrangement. Despite the CO oxidation reaction being
non-autocatalytic, we have shown that the analytic conditions of the existence
of the Turing and the Hopf bifurcations can be satisfied in such systems. Thus,
the system may lose its stability in two ways --- either through the Hopf
bifurcation leading to the formation of temporal patterns in the system or
through the Turing bifurcation leading to the formation of regular spatial
patterns. At a simultaneous implementation of both scenarios, spatiotemporal
patterns for CO and oxygen coverages are obtained in the system.
