Introducing C–B diatomic groups in carbon-doped hexagonal boron nitride (h-BN) flakes resulted in high activity and selectivity for HCOOH in CO₂ electroreduction. The activation of CO₂ was prone to occur on B atoms while the activation of the proton occurred on C atoms. The volcano-type relation of Faradaic efficiency for HCOOH production over carbon content originates from the balance of H* and COOH* intermediates in carbon-doped h-BN catalysts.

中文翻译：

---

引入碳硼原子基团是提高甲酸产量以实现CO ₂电化学还原的有效策略†

在碳掺杂的六方氮化硼（h-BN）薄片中引入C–B双原子基团可提高H ₂ CO ₂电还原中HCOOH的活性和选择性。B 2原子上容易发生CO ₂的活化，而C原子上则发生质子的活化。HCOOH产生的法拉第效率与碳含量的火山类型关系起因于掺杂碳的h-BN催化剂中H *和COOH *中间体的平衡。