碳纸上的镍铁氧化物材料作为碱性水电解模块的电催化剂。

NiFeO Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module.

作者信息

Wang Ying-Chyi, Yu Shuo-En, Su Yu-Lun, Cheng I-Chun, Chuang Yi-Cheng, Chen Yong-Song, Chen Jian-Zhang

机构信息

Institute of Applied Mechanics, National Taiwan University, Taipei City 106319, Taiwan.

Graduate School of Advanced Technology, National Taiwan University, Taipei City 106319, Taiwan.

出版信息

Micromachines (Basel). 2023 Dec 28;15(1):62. doi: 10.3390/mi15010062.

DOI:10.3390/mi15010062

PMID:38258181

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10819468/

Abstract

NiFeO material is grown on carbon paper (CP) with the hydrothermal method for use as electrocatalysts in an alkaline electrolyzer. NiFeO material is used as the anode and cathode catalysts (named NiFe(+)/NiFe(-) hereafter). The results are compared with those obtained using CP/NiFe as the anode and CP/Ru as the cathode (named NiFe)(+)/Ru(-) hereafter). During cell operation with NiFe(+)/Ru(-), the current density reaches 500 mA/cm at a cell voltage of 1.79 V, with a specific energy consumption of 4.9 kWh/m and an energy efficiency of 66.2%. In comparison, for NiFe(+)/NiFe(-), the current density reaches 500 mA/cm at a cell voltage of 2.23 V, with a specific energy consumption of 5.7 kWh/m and an energy efficiency of 56.6%. The Faradaic efficiency is 96-99%. With the current density fixed at 400 mA/cm, after performing a test for 150 h, the cell voltage with NiFe(+)/Ru(-) increases by 0.167 V, whereas that with NiFe(+)/NiFe(-) decreases by only 0.010 V. Good, long-term stability is demonstrated.

摘要

采用水热法在碳纸（CP）上生长NiFeO材料，用作碱性电解槽中的电催化剂。NiFeO材料用作阳极和阴极催化剂（以下简称NiFe(+)/NiFe(-)）。将结果与使用CP/NiFe作为阳极和CP/Ru作为阴极（以下简称NiFe(+)/Ru(-)）所获得的结果进行比较。在使用NiFe(+)/Ru(-)的电池运行过程中，在电池电压为1.79 V时，电流密度达到500 mA/cm²，比能耗为4.9 kWh/m³，能量效率为66.2%。相比之下，对于NiFe(+)/NiFe(-)，在电池电压为2.23 V时，电流密度达到500 mA/cm²，比能耗为5.7 kWh/m³，能量效率为56.6%。法拉第效率为96 - 99%。在电流密度固定为400 mA/cm²的情况下，进行150小时测试后，NiFe(+)/Ru(-)的电池电压增加了0.167 V，而NiFe(+)/NiFe(-)的电池电压仅下降了0.010 V。显示出良好的长期稳定性。