Why don't we use noble metal catalysts in oxidative coupling of methane (OCM)?

Typically Li/MgO, Sr/La2O3, Na/W/Mn/SiO2, et.al. are used in oxidative coupling of methane (OCM). However, their ability of methane activation are not as good as noble metals. I want to know if...

08 August 2017 3,409 1 View