TY - JOUR
T1 - Fe-MOF-based catalysts for oxygen evolution reaction
T2 - Microenvironment regulated by organic ligands, metals and carbonization synergistically
AU - Ding, Chenchen
AU - Zhong, Weiwei
AU - Cao, Yuqi
AU - Ma, Tingting
AU - Ye, Huimin
AU - Fang, Zheng
AU - Feng, Yirong
AU - Zhao, Shuangfei
AU - Yang, Jiming
AU - Li, Yuguang
AU - Shen, Lei
AU - He, Wei
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2025/2/5
Y1 - 2025/2/5
N2 - In this work, novel catalysts towards oxygen evolution reaction were designed based on Fe-MOF materials. The issues concerning the microenvironment of active sites, such as organic ligands and metal sites, were investigated in detail. Fe-BDC derived from terephthalic acid (H2BDC) displayed better performance compared with Fe-FDCA generated by 2,5-furanedicarboxylic acid (FDCA) due to the difference in electron cloud density of Fe active sites. The additional introduction of metal sites improved the catalytic activity of Co-Fe-BDC and Ni-Fe-BDC with faster reaction kinetics, but its relatively few active sites resulted in oxygen evolution reaction (OER) performance similar to that of the initial Fe-BDC. The pyrolysis of Co/Ni-Fe-BDC afforded carbon-based catalyst Co-Fe-C, possessing an extremely low overpotential (208 mV) at 10 mA/cm2 and high electrocatalytic stability after 36 h of continuous operation, relative to Fe-BDC (249 mV). The high catalytic performance was attributed to the compact and efficient microenvironment of active sites. This study provided a new strategy for the development of efficient and durable electrocatalysts for OER.
AB - In this work, novel catalysts towards oxygen evolution reaction were designed based on Fe-MOF materials. The issues concerning the microenvironment of active sites, such as organic ligands and metal sites, were investigated in detail. Fe-BDC derived from terephthalic acid (H2BDC) displayed better performance compared with Fe-FDCA generated by 2,5-furanedicarboxylic acid (FDCA) due to the difference in electron cloud density of Fe active sites. The additional introduction of metal sites improved the catalytic activity of Co-Fe-BDC and Ni-Fe-BDC with faster reaction kinetics, but its relatively few active sites resulted in oxygen evolution reaction (OER) performance similar to that of the initial Fe-BDC. The pyrolysis of Co/Ni-Fe-BDC afforded carbon-based catalyst Co-Fe-C, possessing an extremely low overpotential (208 mV) at 10 mA/cm2 and high electrocatalytic stability after 36 h of continuous operation, relative to Fe-BDC (249 mV). The high catalytic performance was attributed to the compact and efficient microenvironment of active sites. This study provided a new strategy for the development of efficient and durable electrocatalysts for OER.
KW - Annealed carbonization
KW - Metal-doped
KW - Metal-organic frameworks
KW - Organic ligand
KW - Oxygen evolution reaction
UR - http://www.scopus.com/inward/record.url?scp=85207959813&partnerID=8YFLogxK
U2 - 10.1016/j.ces.2024.120888
DO - 10.1016/j.ces.2024.120888
M3 - 文章
AN - SCOPUS:85207959813
SN - 0009-2509
VL - 302
JO - Chemical Engineering Science
JF - Chemical Engineering Science
M1 - 120888
ER -