Wei Kuo, Pang Shanshan, Meng Ying, Feng Lingling, Wang Yuanzhe, Zhou Junshuang, Hu Hao, Song Yanli, Gao Faming
Tianjin Key Laboratory of Brine Chemical Engineering and Resource Ecological Utilization, Tianjin University of Science & Technology, Tianjin 300222, People's Republic of China.
Key Laboratory of Applied Chemistry, Yanshan University, Qinhuangdao 066004, People's Republic of China.
Nanotechnology. 2023 Oct 30;35(3). doi: 10.1088/1361-6528/ad0053.
The electrolytic water method is an outstanding hydrogen production process because of its high stability and no restriction. A low-priced and efficient catalyst for electro-deposition of Ni-Co microspheres and nanoclusters on carbon steel (Ni-Co/CS) has been prepared by the dynamic hydrogen bubble template. In the 6 M KOH solution, Ni-Co/CS only requires an overpotential of 48 mV to provide a current density of 50 mA cm. At the same time, it also has a large electrochemically active specific surface area (ECSA) and a hydrophilic surface. In addition, the study about the influence of carbon steel (CS) on Ni-Co coatings and the comparison experiment for different base materials has been completed. The results prove that CS is an excellent base material for hydrogen production. It can help the Ni-Co catalyst to have a stable electrolysis in 6 M KOH for 500 h. The above properties of Ni-Co/CS catalyst make it a new choice of hydrogen production by electrolysis of water in practical applications.
电解水法因其高稳定性和无限制而成为一种出色的制氢工艺。通过动态氢气泡模板制备了一种用于在碳钢（Ni-Co/CS）上电沉积Ni-Co微球和纳米团簇的低价高效催化剂。在6 M KOH溶液中，Ni-Co/CS仅需48 mV的过电位即可提供50 mA cm的电流密度。同时，它还具有较大的电化学活性比表面积（ECSA）和亲水表面。此外，还完成了关于碳钢（CS）对Ni-Co涂层影响的研究以及不同基材的对比实验。结果证明，CS是一种出色的制氢基材。它可以帮助Ni-Co催化剂在6 M KOH中稳定电解500 h。Ni-Co/CS催化剂的上述特性使其成为实际应用中水电解制氢的新选择。
