Protocol for ambient CO₂ capture and conversion into HCOOH and NH₄H₂PO₄

CO₂ capture and utilization into liquid fuels and high-added-value chemicals has been regarded as an attractive strategy to mitigate excessive carbon emissions. Here, we present a protocol to capture and convert CO₂ into pure formic acid (HCOOH) solution and solid fertilizer (NH₄H₂PO₄). We describe steps for synthesis of an IRMOF3-derived carbon-supported PdAu heterogeneous catalyst (PdAu/CN-NH₂), which can efficiently catalyze (NH₄)₂CO₃-captured CO₂ into formate under ambient conditions. For complete details on the use and execution of this protocol, please refer to Jiang et al. (2023).¹.