Honda Motor and Catalytic Solutions (CSI) have developed an emission control system that, they claim, requires only a fraction of the precious metals currently used in the design of present day systems.
The technology will be implemented for the first time on a new Honda Stepwagon that will be introduced in Japan next month.
The new Honda emission control system uses perovskites and other metal oxides, allowing for a 50 to 70 percent reduction in the use of precious metals such as platinum, palladium and rhodium.
Plans call for the technology to be applied to other Honda models in markets around the world in the years ahead, including the US. But no timetable has been established for the introduction of the technology on vehicles sold outside Japan.
CSI developed the new catalytic coating materials used in the perovskite three-way catalyst. These materials include unique crystal structures that convert and reduce oxides of nitrogen, hydrocarbons and carbon monoxide.
The two companies worked together to optimise the properties for Honda’s automotive catalysts, with Honda’s air/fuel ratio control and early catalytic activation capabilities playing a key role.