Self-Optimized Metal–Organic Framework Electrocatalysts with Structural Stability and High Current Tolerance for Water Oxidation

ACS Catalysis ◽  
2021 ◽  
pp. 7132-7143
Author(s):  
Chao-Peng Wang ◽  
Yang Feng ◽  
Hao Sun ◽  
Yurou Wang ◽  
Jun Yin ◽  
...  
Keyword(s):  
Structural Stability ◽  
Water Oxidation ◽  
Metal Organic Framework ◽  
High Current ◽  
Metal Organic ◽  
Organic Framework

Nitridation-induced metal-organic framework nanosheet for enhanced water oxidation electrocatalysis

2021 ◽  
Author(s):  
Na Yao ◽  
Hongnan Jia ◽  
Zhengyin Fan ◽  
Lu Bai ◽  
Wei Xie ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Metal Organic Framework ◽  
Metal Organic ◽  
Organic Framework

scholarly journals Post Synthetic Defect Engineering of UiO-66 Metal–Organic Framework with An Iridium(III)-HEDTA Complex and Application in Water Oxidation Catalysis

Inorganics ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 123 ◽  
Author(s):  
Giordano Gatto ◽  
Alceo Macchioni ◽  
Roberto Bondi ◽  
Fabio Marmottini ◽  
Ferdinando Costantino
Keyword(s):  
Water Oxidation ◽  
Metal Organic Framework ◽  
Oxidation Catalysis ◽  
Partial Substitution ◽  
Iridium Complexes ◽  
Cerium Ammonium Nitrate ◽  
Highly Active ◽  
Water Oxidation Catalysis ◽  
Metal Organic ◽  
Organic Framework

Clean production of renewable fuels is a great challenge of our scientific community. Iridium complexes have demonstrated a superior catalytic activity in the water oxidation (WO) reaction, which is a crucial step in water splitting process. Herein, we have used a defective zirconium metal–organic framework (MOF) with UiO-66 structure as support of a highly active Ir complex based on EDTA with the formula [Ir(HEDTA)Cl]Na. The defects are induced by the partial substitution of terephthalic acid with smaller formate groups. Anchoring of the complex occurs through a post-synthetic exchange of formate anions, coordinated at the zirconium clusters of the MOF, with the free carboxylate group of the [Ir(HEDTA)Cl]− complex. The modified material was tested as a heterogeneous catalyst for the WO reaction by using cerium ammonium nitrate (CAN) as the sacrificial agent. Although turnover frequency (TOF) and turnover number (TON) values are comparable to those of other iridium heterogenized catalysts, the MOF exhibits iridium leaching not limited at the first catalytic run, as usually observed, suggesting a lack of stability of the hybrid system under strong oxidative conditions.

scholarly journals An exceptionally stable octacobalt-cluster-based metal–organic framework for enhanced water oxidation catalysis

2019 ◽  
Vol 10 (42) ◽  
pp. 9859-9864 ◽  
Author(s):  
Ning-Yu Huang ◽  
Jian-Qiang Shen ◽  
Zi-Ming Ye ◽  
Wei-Xiong Zhang ◽  
Pei-Qin Liao ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Adsorption Energy ◽  
Water Oxidation ◽  
Metal Organic Framework ◽  
Oxidation Catalysis ◽  
Cobalt Ions ◽  
Water Oxidation Catalysis ◽  
Metal Organic ◽  
Kinetics Of ◽  
Organic Framework

The site, capping four coplanar cobalt ions, has a near-optimal OH− adsorption energy, which is beneficial to accelerate the reaction kinetics of water oxidation catalysis.

scholarly journals Electrocatalytic water oxidation by a molecular catalyst incorporated into a metal–organic framework thin film

2017 ◽  
Vol 46 (5) ◽  
pp. 1382-1388 ◽  
Author(s):  
Ben A. Johnson ◽  
Asamanjoy Bhunia ◽  
Sascha Ott
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Water Oxidation ◽  
Ruthenium Complex ◽  
Metal Organic Framework ◽  
Molecular Catalyst ◽  
Metal Organic ◽  
Organic Framework

A molecular ruthenium complex incorporated into FTO-grown thin films of UiO-67 catalyzes electrochemical water oxidation.

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