Ambient CO 2 Hydrogenation to Formate Over NiPd Catalyst

Abstract The urgent need for sustainable CO 2 management has driven the development of efficient catalytic systems capable of converting CO 2 into value‐added chemicals under mild conditions. Herein, we report a Ni 9 Pd 1 catalyst with a low Pd content (Ni/Pd = 9:1) for the selective CO 2 hydrogenation to formate at low temperatures. Remarkably, this catalyst exhibits exceptional versatility, efficiently hydrogenating both aqueous (bi)carbonate and CO 2 captured from air (as carbonate) to formate. Moreover, this catalyst shows appreciable robustness by achieving cumulative formate yields of 770.5 mmol g Pd −1 (TON of 82, STY of 32.18 mmol formate g Pd −1 h −1 at 28 °C) and 1371.9 mmol g Pd −1 (TON of 146, STY of 57.16 mmol formate g Pd −1 h −1 at 80 °C) over multiple cycles. The synergistic Ni‐to‐Pd interaction in this catalyst leads to the efficient CO 2 activation and H 2 dissociation, enabling operation under mild conditions. This study demonstrates an integrated and sustainable approach where CO 2 captured from air can be hydrogenated to formate at low temperature.