What NOX aftertreatment does not require onboard storage of liquid DEF, instead, produces ammonia inside a unique catalyst substrate through a multistep chemical process that uses hydrogen from fuel molecules and nitrogen from stored NOx?

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The Answer of What NOX aftertreatment does not require onboard storage of liquid DEF, instead, produces ammonia inside a unique catalyst substrate through a multistep chemical process that uses hydrogen from fuel molecules and nitrogen from stored NOx?

What NOX Aftertreatment Does Not Require Onboard Storage of Liquid