以泡沫铜为基底生长氢氧化铜纳米线，通过原位转化合成二维导电金属有机框架(MOF)材料Cu3HITP2 (HITP = 2, 3, 6, 7, 10, 11-六氨基三亚苯)作为双功能催化剂，可直接用作析氧及氧还原反应的工作电极，而无需使用额外的基底或粘合剂，且无需后续热处理。研究发现以氢氧化铜纳米线为模板的Cu3HITP2表现出了更大的电化学比表面积，这种新型的电极可在碱性溶液(0.1和1.0 mol·L-1 KOH)中可以稳定运行，析氧反应中在电流密度达到10 mA·cm-2时的过电位仅为1.53 V，超越了商业二氧化钌的催化性能。此外，该催化剂在氧还原反应中的半波电位达到0.75 V，优于大多数MOF材料。
With the increasing energy demands for electronic equipment, numerous studies have been conducted to achieve higher energy conversion and develop storage devices such as metal-air batteries, water splitting devices, and fuel cells. All these devices are related to the oxygen evolution reaction (OER) and/or oxygen reduction reaction (ORR). Currently, platinum group metals (PGMs) or their oxides are the most active electrocatalysts for OER and ORR. However, the high cost and scarcity of these noble metals hinder their widespread application. Therefore, the development of a low-cost electrocatalyst that exhibits catalytic performance comparable to or better than that of PGMs is essential