通过简单的溶剂热法、化学气相沉积（CVD）等制备不同磷质量分数的纳米棒、片自组装的Zn、N共掺杂的磷化钴微球（Zn，N-CoP MSs）。通过XRD、TEM、SEM和XPS对所制得催化剂材料的形貌和物相成分进行表征；同时采用线性扫描伏安法（LSV）、循环伏安法（CV）和电化学阻抗谱（EIS）对材料的析氢反应（HER）活性和稳定性进行了测定。结果表明，在0.5 mol/L H₂SO₄溶液中，电流密度为10 mA/cm²时，过电位仅为175 mV，塔菲尔斜率为92 mV/dec，电荷转移电阻为26.6 Ω。优异的催化活性可归因于纳米棒、片自组装的微球具有高的比表面积和完全磷化的Zn，N-CoP MSs之间的协同作用。

Nanorods and sheets self-assembled Zn and N co-doped CoP microspheres (Zn, N-CoP MSs) are prepared through solvothermal method and chemical vapor deposition (CVD) method. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) are employed to characterize the morphology and phase composition of the prepared nanomaterials. Linear sweep voltammetry (LSV), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are utilized to measure the hydrogen evolution activity and stability of the materials. The result shows that as the current density is 10 mA·cm^-2, the overpotential of the materials is only 175 mV in a 0.5 mol·L^-1 H₂SO₄ solution, and its Tafel slope and charge transfer resistance is 92 mV·dec^-1 and 26.6 Ω, respectively. Excellent catalytic activity can be attributed to the synergistic effect between nano-material structure and Zn, N-CoP MSs.

张亚奇(1993-),男,硕士研究生,研究方向为电化学,2369558493@qq.com