To date, the development of the nitrogen reduction reaction (NRR) electrocatalysts to achieve high ammonia production at low overpotentials is insufficient. Here, Sb₂Te₃ displays notable electrochemical NRR performance at 0 V (versus RHE), with an ammonia yield rate of 13.8 μg h⁻¹ cm⁻² and a faradic efficiency of 27.7% (the highest yield rate at low overpotentials reported, to the best of our knowledge). Sb₂Te₃ is also stable over 50 h. Density functional theory (DFT) calculations disclose that there are multiple promoted-synergetic effects in telluride. Tellurium sites can modulate the electronic structure of catalysts to drive nitrogen adsorption on antimony sites. Tellurium sites also allow surface hydrogenation to suppress hydrogen evolution, facilitate the reduction of nitrogen into ∗NNH (the rate-determining step) in NRR, and accelerate the desorption of NH₃. The other tellurides (CoTe₂, CdTe, and Bi₃Te₄) also show high NRR performance at low overpotentials, implying that such multiple promoted-synergism may be generalized.

迄今为止，开发氮还原反应（NRR）电催化剂以在低超电势下实现高氨生产量还不够。在此，Sb ₂ Te ₃在0 V（相对RHE）下显示出显着的电化学NRR性能，氨的产率为13.8μgh ^-1 cm ^-2，法拉第效率为27.7％（据报道，低过电势下的最高产率，据我们所知）。Sb ₂ Te ₃在50小时内也保持稳定。密度泛函理论（DFT）计算表明，碲化物具有多种促进的协同作用。碲位点可调节催化剂的电子结构，以驱使氮吸附在锑位点上。碲位点还允许表面氢化来抑制氢的释放，促进氮在NRR中还原为* NNH（速率确定步骤），并加速NH ₃的解吸。其他碲化物（CoTe ₂，CdTe和Bi ₃ Te ₄）在低过电势下也显示出高NRR性能，这意味着这种多重促进的协同作用可能是普遍的。