Main purpose: development of thermochemical reaction systems for converting carbon resources such as coal, biomass and wastes into H2/CO that is to be the common energy/material platform in future sustainable carbon cycle chemistry (SC3) systems. Current topics: detailed chemical kinetic analysis and modeling, sequencing of parallel/consecutive thermo-chemical reactions of coal and biomass, conversion of heavy oil and tar in nano/sub-nano spaces, radi-cal-driven rapid gasification of carbonized solids, pre-cise control of chemical vapor infiltration processes.