Efficient syngas production with controllable CO : H2 ratios based on aqueous electrocatalytic CO2 reduction over mesoporous TiO2 films modified with a cobalt porphyrin molecular catalyst

The CO : H 2 ratio in syngas is found to be controllable from 1 : 1 to 1 : 20 by the combined use of a pristine and a CoP-py-anchored mesoporous TiO 2 electrode by simply tuning the applied potential.