Coal chars recovered from fly ash as promising electrocatalysts for oxygen reduction reaction

Synthesis of N/Fe/S-Codoped Cathode Catalysts on Gasification Residue Carbon for Zinc–Air Batteries

“…The world’s energy consumption is still dominated by fossil fuels. Coal remains the primary energy source in China, with a high usage share of 58%. , Coal gasification technology has been applied on a large scale in the industry as a mature clean technology. , As a solid waste produced from the coal gasification process, the gasification fine slag (GFS) contains residual carbon (RC) and ash, and its large specific surface area, good pore structure, and wide pore size distribution make it a good basis for becoming a porous material precursor. , However, during the gasification process, the form of carbon presence changes, resulting in the presence of a large amount of graphitic carbon in the RC, making its physicochemical properties different from those of other carbon-based materials. Therefore, it is necessary to explore whether heteroatom doping can have a similar activation effect on the RC.…”

Coal-Derived N-Doped Porous Carbon Accompanied with Fe2O3 for Oxygen Reduction Reaction

“…Many researchers have reported that the porous carbon materials prepared from coals as raw materials have good catalytic performance for ORR in acidic and alkaline media. 9,11,16,17 For example, Wang and his co-workers have synthesized coal layered double hydroxides (Coal-LDHs)/reduced graphene oxide (rGO) composites for ORR by in situ growing coal LDHs on the GO surface through co-deposition and hydrothermal treatment. 18 Furthermore, Zhou and his co-workers have obtained an ORR catalyst from high temperature pyrolysis of coal tar pitch, N and S precursors with in situ self-generated MgO template.…”