Hydrogen energy has been considering as an ideal renewable energy source and playing a very important role in daily life. Noble metal catalysts have shown excellent catalytic performance in electrolysis of water for hydrogen evolution, but their scarcity and high cost limit their large-scale use. Therefore, the design of non-noble metal catalysts with high catalytic activity and stability and low cost is an urgent problem to be solved. Two zinc-based coordination polymers have been synthesized by one-pot method. We developed an effective method through simple Co²⁺ doping, which improved and optimized the electrocatalytic performance to obtain two high-quality electrocatalysts for electrolysis of water to produce hydrogen with low starting potential (−210 mV and −240 mV), high Tafel efficiency (117.7 mV dec-1 and 127.8 mV dec-1) and excellent cycle stability (>95% LSV retention after at least 2000 cycles). We also synthesized two isomorphic Co-based or Ni-based coordination polymers, and found that their electrocatalytic performances were improved to some extent after the introduction of Co ions, but the effects were not as good as that of zinc-based coordination polymers. This work not only provides two examples of good electrocatalyst, but also provides an idea to improve and optimize the electrocatalytic performance.

氢能一直被认为是一种理想的可再生能源，在日常生活中发挥着非常重要的作用。贵金属催化剂在电解水析氢方面表现出优异的催化性能，但其稀缺性和高成本限制了其大规模应用。因此，设计具有高催化活性和稳定性且成本低的非贵金属催化剂是亟待解决的问题。通过一锅法合成了两种锌基配位聚合物。我们通过简单的 Co ²⁺开发了一种有效的方法掺杂，提高和优化了电催化性能，获得了两种高质量的电催化剂，用于电解水制氢，具有低起始电位（-210 mV和-240 mV），高塔菲尔效率（117.7 mV dec-1和127.8 mV dec -1) 和出色的循环稳定性（至少 2000 次循环后 >95% LSV 保留）。我们还合成了两种同构的Co基或Ni基配位聚合物，发现引入Co离子后它们的电催化性能有所提高，但效果不如锌基​​配位聚合物。这项工作不仅提供了两个良好电催化剂的例子，而且为改进和优化电催化性能提供了思路。