Self-reconstruction of cationic activated Ni-MOFs enhanced the intrinsic activity of electrocatalytic water oxidation

2021 ◽  
Author(s):  
Xuemin Wang ◽  
Xixi Wang ◽  
Lin Zhao ◽  
Hanyu Zhang ◽  
Ming Liu ◽  
...  
Keyword(s):  
Alkaline Solution ◽  
Alkaline Hydrolysis ◽  
Water Oxidation ◽  
Metal Organic Frameworks ◽  
Intrinsic Activity ◽  
Nano Scale ◽  
Molecular Scale ◽  
Metal Organic

Metal-organic frameworks (MOFs) have emerged as alternative OER catalysts due to their alkaline hydrolysis from high “molecular-scale pores” to high “nano-scale porosity” in alkaline solution, and then in situ self-reconstruction...

Iron carbonate hydroxide templated binary metal–organic frameworks for highly efficient electrochemical water oxidation

2019 ◽  
Vol 55 (98) ◽  
pp. 14773-14776 ◽  
Author(s):  
Jian Du ◽  
Suxian Xu ◽  
Licheng Sun ◽  
Fei Li
Keyword(s):  
High Activity ◽  
Alkaline Solution ◽  
Water Oxidation ◽  
Metal Organic Frameworks ◽  
Iron Carbonate ◽  
Binary Metal ◽  
Highly Efficient ◽  
Carbonate Hydroxide ◽  
Metal Organic

Iron carbonate hydroxide templated NiFe-MOF nanoplates exhibit high activity and stability for electrocatalytic water oxidation in alkaline solution.

In-Situ Etch Engineering Ru Doped NiFe(OH)x/NiFe-MOF Nanocomposite for Boosting Oxygen Evolution Reaction

2021 ◽  
Author(s):  
Dongmei Liu ◽  
Hui Xu ◽  
Cheng Wang ◽  
Changqing Ye ◽  
Rui Yu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Electronic Conductivity ◽  
Metal Organic Frameworks ◽  
Practical Applications ◽  
The Poor ◽  
Metal Organic

Metal-organic frameworks (MOFs) have been deemed as promising electrocatalysts for electrochemical water oxidation, however, the poor electronic conductivity and stability are still intractable issues hindering the practical applications. Herein, an...

scholarly journals In situ X‐ray Diffraction Investigation of the Crystallisation of Perfluorinated Ce(IV)‐based Metal‐Organic Frameworks with UiO‐66 and MIL‐140 architectures

2021 ◽  
Author(s):  
Stephen J. I. Shearan ◽  
Jannick Jacobsen ◽  
Ferdinando Costantino ◽  
Roberto D’Amato ◽  
Dmitri Novikov ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic

scholarly journals Degradation Mechanism of Porous Metal-Organic Frameworks by In Situ Atomic Force Microscopy

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 722
Author(s):  
Ioanna Christodoulou ◽  
Tom Bourguignon ◽  
Xue Li ◽  
Gilles Patriarche ◽  
Christian Serre ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Degradation Mechanism ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Force Microscopy ◽  
Atomic Force ◽  
Metal Organic ◽  
The Media ◽  
Ph Conditions

In recent years, Metal-Organic Frameworks (MOFs) have attracted a growing interest for biomedical applications. The design of MOFs should take into consideration the subtle balance between stability and biodegradability. However, only few studies have focused on the MOFs’ stability in physiological media and their degradation mechanism. Here, we investigate the degradation of mesoporous iron (III) carboxylate MOFs, which are among the most employed MOFs for drug delivery, by a set of complementary methods. In situ AFM allowed monitoring with nanoscale resolution the morphological, dimensional, and mechanical properties of a series of MOFs in phosphate buffer saline and in real time. Depending on the synthetic route, the external surface presented either well-defined crystalline planes or initial defects, which influenced the degradation mechanism of the particles. Moreover, MOF stability was investigated under different pH conditions, from acidic to neutral. Interestingly, despite pronounced erosion, especially at neutral pH, the dimensions of the crystals were unchanged. It was revealed that the external surfaces of MOF crystals rapidly respond to in situ changes of the composition of the media they are in contact with. These observations are of a crucial importance for the design of nanosized MOFs for drug delivery applications.

In-situ growth of ZIF-8 on gold nanoparticles/magnetic carbon nanotubes for electrochemical detection of bisphenol A

2021 ◽  
Author(s):  
Hexiang Li ◽  
Fawei Zhu ◽  
Jun Xiang ◽  
Fangbin Wang ◽  
Qi Liu ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Gold Nanoparticles ◽  
Bisphenol A ◽  
Electrochemical Detection ◽  
Metal Organic Frameworks ◽  
In Situ Growth ◽  
Metal Organic ◽  
Magnetic Carbon ◽  
Magnetic Carbon Nanotubes

We herein report a facile and scalable strategy for fabrication of the metal organic frameworks (MOFs) based composite by in-situ growing ZIF-8 on the gold nanoparticles (AuNPs) loaded magnetic carbon...

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