In order to decrease the electricity consumption of water electrolysis, we investigated a novel hydrazine-assisted water electrolysis for electricity-independent hydrogen production, featuring with lower anodic hydrazine oxidation reaction (HzOR) than cathodic hydrogen evolution reaction (HER). The adsorption and semiconductor characteristics of hierarchical porous Co_NS@Cu_PD, interlacing by Co(OH)₂ nanosheets on the Cu dendrites surface, are selectively modified to optimize anodic HzOR and cathodic HER performance through doping B and P heteroatoms, respectively. The working potential of HzOR on B-doped Co_NS@Cu_PD negatively shifts to -146 mV at 10 mA cm^-2, while that of HER on P-doped Co_NS@Cu_PD positively shifts to -70 mV. Consequently, the hydrazine electrolysis device using B-/P-doped catalysts output a small voltage of 60 mV at 10 mA cm^-2, achieving co-generation of hydrogen and electricity for the first time. This work brings an intrinsic break in hydrogen-rich molecule-assisted water electrolysis for hydrogen production.

为了降低水电解的电力消耗，我们研究了一种新型的肼辅助水电解用于不依赖电的制氢，其特点是阳极肼氧化反应 (HzOR) 低于阴极析氢反应 (HER)。_{通过掺杂 B 和 P 杂原子，选择性地修饰分层多孔 Co NS} @Cu _PD的吸附和半导体特性，通过 Co(OH) ₂纳米片在 Cu 枝晶表面交错，以优化阳极 HzOR 和阴极 HER 性能。B 掺杂 Co _NS @Cu _PD 上 HzOR 的工作电位在 10 mA  cm ^-2时负移至 -146 mV，而 P 掺杂 Co _NS @Cu _PD上的 HER正向移动到 -70 mV。因此，采用B-/P掺杂催化剂的肼电解装置在10 mA cm ^-2 时输出了60 mV的小电压，首次实现了氢和电的联产。这项工作为富氢分子辅助水电解制氢带来了内在突破。