He Jiaqi, Deng Xin, Sun Wenting, Shang Wenjing, Lou Yongbing, Chen Jinxi
School of Chemistry and Chemical Engineering, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, Southeast University, Nanjing 211189, PR China.
Dalton Trans. 2024 Aug 6;53(31):12936-12942. doi: 10.1039/d4dt01656d.
To address the shortage of fossil energy, the development of affordable and efficient non-precious metal catalysts for oxygen evolution reaction (OER) from electrocatalytic water splitting is still a crucial challenge. Herein, the bimetallic NiFe metal-organic frameworks (MOFs) are synthesized by hydrothermal and electro-deposition. Benefiting from the synergistic effect of Fe and Ni, the catalyst demonstrates extraordinary activity, which exhibits favorable OER catalytic activity in 1 M KOH solution with an overpotential of 206 mV at 10 mA cm. Meanwhile, the obtained NiFe-NDC presents promising stability in the 20 h test at 50 mA cm.
为解决化石能源短缺问题，开发用于电催化水分解析氧反应（OER）的经济高效非贵金属催化剂仍然是一项关键挑战。在此，通过水热法和电沉积法合成了双金属NiFe金属有机框架（MOF）。受益于Fe和Ni的协同效应，该催化剂表现出非凡的活性，在1 M KOH溶液中，在10 mA cm下过电位为206 mV时表现出良好的OER催化活性。同时，所制备的NiFe-NDC在50 mA cm下进行20小时测试时表现出良好的稳定性。
