The replacement of sluggish oxygen evolution reaction by more thermodynamically favorable ethanol oxidation reaction (EOR) is a promising strategy for coproduction of hydrogen and valuable chemicals in energy-saving mode. Here, we propose the synthesis of highly curved PdOs bimetallene, which possesses high active sites atomic utilization and conductivity. Furthermore, alloy effect can regulate electronic structure and optimize adsorption energy of reactants. Therefore, PdOs bimetallene exhibits superior performance for hydrogen evolution reaction (HER) and EOR under basic solutions, with overpotential of 36 mV at 10 mA/cm² and mass activity of 1.51 mA/μg_Pd, respectively. In the EOR-HER coelectrolysis system, PdOs bimetallene requires low voltage of 0.801 V for concurrent production of hydrogen and acetate at 50 mA/cm², which greatly reduces energy consumption compared to conventional water electrolysis (1.976 V). This method provides a promising strategy for designing bimetallic electrocatalysts toward simultaneous energy-saving generation of hydrogen and high-value chemicals by replacing sluggish oxygen evolution reaction with more favorable EOR.

用热力学上更有利的乙醇氧化反应（EOR）取代缓慢的析氧反应是在节能模式下联产氢气和有价值化学品的一种有前景的策略。在这里，我们提出合成高度弯曲的 PdOs 双金属烯，其具有高活性位点原子利用率和导电性。此外，合金效应可以调节电子结构并优化反应物的吸附能。因此，PdOs双金属烯在碱性溶液下表现出优异的析氢反应（HER）和EOR性能，在10 mA/cm ²下的过电势分别为36 mV ，质量活度为1.51 mA/μg _Pd。在EOR-HER共电解系统中，PdOs双金属烯只需0.801 V的低电压即可在50 mA/cm ²下同时生产氢气和乙酸，与传统水电解（1.976 V）相比，大大降低了能耗。该方法为设计双金属电催化剂提供了一种有前途的策略，通过用更有利的 EOR 取代缓慢的析氧反应，从而同时节能地生产氢气和高价值化学品。