Chinese Academy of Sciences Biomethane (CH Currently, CH 4 is mainly produced via a multi-step process in which biomass is first gasified into biogas, followed by the methanation of the latter. This method requires high temperature and pressure and shows low selectivity for chemical or biological processes. Recently, a research group led by Prof. WANG Feng from the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, in collaboration with Prof. WANG Min’s group from Dalian University of Technology, proposed interfacial oxygen-vacancy (Vo)-mediated catalysis over Ru/TiO 2 for the direct methanation of lignocellulosic biomass at temperatures below 200°C and with a selectivity above 95%.