A new mode of membrane-electrode assembly based electrolysis was adopted for efficient electrochemical reduction of carbon dioxide (CO₂RR) to formate. InN-C nanomaterials were employed as the CO₂RR electrocatalyst, which showed excellent catalytic activity and high selectivity to produce formate, because of nitridation to form more basic sites. In aqueous phase, the maximum Faradaic efficiency (FE) by InN-C for formate was 92.2 % at -0.9 V vs RHE, higher than that of In₂O₃-C catalyst. In MEA electrolysis, the maximum FE reached 92.5 % at the cell voltage of 2.96 V with formate partial current density of 60.1 mA cm⁻². The increased reactivity was due to optimized gas-liquid biphase transport of CO₂, which is quite limited in single aqueous phase.

采用一种新的基于膜电极组件的电解模式，可以有效地电化学还原二氧化碳（CO ₂ RR）生成甲酸酯。InN-C纳米材料被用作CO ₂ RR电催化剂，由于氮化形成更多的碱性位，因此其具有出色的催化活性和高选择性生成甲酸。在水相中，InN-C对甲酸的最大法拉第效率（FE）在-0.9 V对RHE下为92.2％，高于In ₂ O ₃ -C催化剂。在MEA电解中，在2.96V的电池电压下的最大FE达到92.5％，甲酸的部分电流密度为60.1mA cm ^-2。反应性的提高是由于优化了CO的气液两相传输₂，这在单一水相中是非常有限的。