scholarly journals Highly CO Selective Trimetallic Metal-Organic Framework Electrocatalyst for the Electrochemical Reduction of CO2

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 537
Author(s):  
Tran-Van Phuc ◽  
Jin-Suk Chung ◽  
Seung-Hyun Hur
Keyword(s):  
High Current Density ◽  
Metal Organic Framework ◽  
Faradaic Efficiency ◽  
Onset Potential ◽  
Long Term Stability ◽  
Metal Organic ◽  
Reduction Of Co2 ◽  
Electrocatalytic Reduction Of Co2 ◽  
Organic Framework

Pd, Cu, and Zn trimetallic metal-organic framework electrocatalysts (PCZs) based on benzene-1,3,5-tricarboxylic were synthesized using a simple solvothermal synthesis. The as-synthesized PCZ catalysts exhibited as much as 95% faradaic efficiency towards CO, with a high current density, low onset potential, and excellent long-term stability during the electrocatalytic reduction of CO2.

Highly oriented MOF thin film-based electrocatalytic device for the reduction of CO2 to CO exhibiting high faradaic efficiency

2016 ◽  
Vol 4 (40) ◽  
pp. 15320-15326 ◽  
Author(s):  
Lu Ye ◽  
Jinxuan Liu ◽  
Yan Gao ◽  
Chenghuan Gong ◽  
Matthew Addicoat ◽  
...  
Keyword(s):  
Thin Film ◽  
Liquid Phase ◽  
Liquid Phase Epitaxy ◽  
Metal Organic Framework ◽  
Faradaic Efficiency ◽  
Metal Organic ◽  
Reduction Of Co2 ◽  
Organic Framework

A monolithic, highly electrochemically efficient Re-based metal–organic framework (MOF) thin film has been deposited onto a conductive FTO electrode by liquid-phase epitaxy.

scholarly journals Facile one-pot solvothermal preparation of two-dimensional Ni-based metal–organic framework microsheets as a high-performance supercapacitor material

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8362-8366
Author(s):  
Zhaohua Li ◽  
Yuan Sun ◽  
Rui Hu ◽  
Shuai Ye ◽  
Jun Song ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Two Dimensional ◽  
Supercapacitor Electrode ◽  
One Pot ◽  
Long Term Stability ◽  
Metal Organic ◽  
Solvothermal Preparation ◽  
Organic Framework

Two-dimensional Ni-based metal–organic framework microsheets (Ni-MOFms) were synthesized via a facial one-pot solvothermal approach and exhibited good specific capacities and excellent long-term stability when used for a supercapacitor electrode.

In-plane intergrowth CoS2/MoS2 nanosheets: binary metal–organic framework evolution and efficient alkaline HER electrocatalysis

2020 ◽  
Vol 8 (22) ◽  
pp. 11435-11441 ◽  
Author(s):  
Peng Liu ◽  
Jianyue Yan ◽  
Jianxin Mao ◽  
Jiawen Li ◽  
Dongxue Liang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Mos2 Nanosheets ◽  
Term Stability ◽  
Long Term Stability ◽  
Ultrathin Nanosheets ◽  
Binary Metal ◽  
Metal Organic ◽  
Organic Framework

Bi-metallic MOF-derived in-plane intergrowth CoS2/MoS2 ultrathin nanosheets exhibit ultralow overpotential and long-term stability for alkaline HER electrocatalysis.

scholarly journals A large π-conjugated ligand in metal-organic framework as opticalswitch to regulate the electron transfer pathway for highly selective reduction of CO2 to CH4

2021 ◽  
Author(s):  
Pei-Qin Liao ◽  
Yuanyuan Liu ◽  
Hao-Lin Zhu ◽  
Ning-Yu Huang ◽  
Xiao-Ming Chen
Keyword(s):  
Electron Transfer ◽  
High Performance ◽  
Theoretical Calculations ◽  
Metal Organic Framework ◽  
Photocatalytic Reduction ◽  
Faradaic Efficiency ◽  
Electron Transfer Pathway ◽  
Metal Organic ◽  
Reduction Of Co2 ◽  
Organic Framework

Abstract Here, we report a Cu-based metal-organic framework (Cu-DBC), constructed by the large π-conjugated ligand dibenzo-[g,p]chrysene-2,3,6,7,10,11,14,15-octaol and the square-pyramidal CuO5 nodes, as the photo-coupled electrocatalysts for CO2 reduction to CH4. Under visible light, it exhibits high performance for photocatalytic reduction of CO2 to CH4 with selectivity of 100% and rate of 1.04 μmol g-1 h-1, without additional photosensitizer. Importantly, at -1.4 V vs. RHE, it exhibits high performance for photo-coupled electroreduction of CO2 to CH4 with a Faradaic efficiency (CH4) of 93% and current density of 10.4 A g-1. Theoretical calculations, in-situ infrared spectroscopy investigation and Mott–Schottky measurements showed that the large conjugated ligand in Cu-DBC has the suitable lowest unoccupied molecular orbital (LUMO) to match well with the reduction potential of CO2/CH4 and serves as a photoswitch to regulate electron transfer pathway to the metal center, resulting highly selective photocatalytic reduction or photo-coupled electroreduction of CO2 to CH4.

Metal–organic-framework-derived porous 3D heterogeneous NiFex/NiFe2O4@NC nanoflowers as highly stable and efficient electrocatalysts for the oxygen-evolution reaction

2019 ◽  
Vol 7 (37) ◽  
pp. 21338-21348 ◽  
Author(s):  
Jia Zhao ◽  
Xu Zhang ◽  
Ming Liu ◽  
Yi-Zhan Jiang ◽  
Min Wang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Framework ◽  
Term Stability ◽  
Long Term Stability ◽  
Metal Organic ◽  
Low Overpotential ◽  
Organic Framework

Metal–organic-framework-derived porous 3D heterogeneous NiFex/NiFe2O4@NC nanoflowers were prepared as an oxygen-evolution reaction electrocatalyst that exhibit a low overpotential of 262 mV and long-term stability of up to 150 h.

scholarly journals Enhancement of Thermostability of Aspergillus flavus Urate Oxidase by Immobilization on the Ni-Based Magnetic Metal–Organic Framework

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1759
Author(s):  
Neda Motamedi ◽  
Mahmood Barani ◽  
Azadeh Lohrasbi-Nejad ◽  
Mojtaba Mortazavi ◽  
Ali Riahi-Medvar ◽  
...  
Keyword(s):  
Aspergillus Flavus ◽  
Metal Organic Framework ◽  
Urate Oxidase ◽  
Significant Activity ◽  
Original Activity ◽  
Long Term Stability ◽  
Magnetic Metal ◽  
Metal Organic ◽  
Almost All ◽  
Organic Framework

The improvement in the enzyme activity of Aspergillus flavus urate oxidase (Uox) was attained by immobilizing it on the surface of a Ni-based magnetic metal–organic framework (NimMOF) nanomaterial; physicochemical properties of NimMOF and its application as an enzyme stabilizing support were evaluated, which revealed a significant improvement in its stability upon immobilization on NimMOF (Uox@NimMOF). It was affirmed that while the free Uox enzyme lost almost all of its activity at ~40–45 °C, the immobilized Uox@NimMOF retained around 60% of its original activity, even retaining significant activity at 70 °C. The activation energy (Ea) of the enzyme was calculated to be ~58.81 kJ mol−1 after stabilization, which is approximately half of the naked Uox enzyme. Furthermore, the external spectroscopy showed that the MOF nanomaterials can be coated by hydrophobic areas of the Uox enzyme, and the immobilized enzyme was active over a broad range of pH and temperatures, which bodes well for the thermal and long-term stability of the immobilized Uox on NimMOF.

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