Recent advances in nickel-based catalysts in eCO₂RR for carbon neutrality

The excessive use of nonrenewable energy has brought about serious greenhouse effect. Converting CO2 into high-value-added chemicals is undoubtedly the best choice to solve energy problems. Due to the excellent cost-effectiveness and dramatic catalytic performance, nickel-based catalysts have been considered as the most promising candidates for the electrocatalytic CO2 reduction reaction (eCO(2)RR). In this work, the electrocatalytic reduction mechanism of CO2 over Ni-based materials is reviewed. The strategies to improve the eCO(2)RR performance are emphasized. Moreover, the research on Ni-based materials for syngas generation is briefly summarized. Finally, the prospects of nickel-based materials in the eCO(2)RR are provided with the hope of improving transition-metal-based electrocatalysts for eCO(2)RR in the future.