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Updated: Nov 1, 2025
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Improved electrochemical performances by Ni-catecholate-based metal organic framework grown on NiCoAl-layered double
Junfeng Chen1, Jiaqi Yang1, Liting Jiang1
1Department of Environmental Science, School of Life Science, Qufu Normal University, Qufu 273165, PR China.
Abstract:
In this study, a simple two-step hydrothermal method was used to prepare the cathode catalyst of the microbial fuel cell (MFC). NiCoAl- layered double hydroxide (LDH) nanosheets were grown vertically on multi-wall carbon nanotubes (MWCNTs) in situ; Ni-catecholate-based metal organic framework (Ni-CAT MOF) were modified on the surface of the nanosheets. The maximum output voltage of Ni-CAT/NiCoAl-LDH/MWCNTs was 475 mV, the maximum stabilization time was 8 d, the maximum output power was 448.5 ± 12.0 mW/m2, which was 1.03 times that of NiCoAl-LDH/MWCNT-MFC (433.5 ± 14.8 mW/m2) and 1.35 times of NiCoAl-LDH- MFC (329.9 ± 2.9 mW/m2). The layer structure of LDH, conductivity of Ni-CAT and MWCNT improved the flow efficiency of ions between layers and effectively reduced transmission resistance, and these have effectively enhanced the cycle stability and power generation efficiency of the electrode.
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