scholarly journals Facet engineering in metal organic frameworks to improve their electrochemical activity for water oxidation

2020 ◽  
Vol 56 (31) ◽  
pp. 4316-4319 ◽  
Author(s):  
Jiawei Wan ◽  
Di Liu ◽  
Hai Xiao ◽  
Hongpan Rong ◽  
Sheng Guan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Low Cost ◽  
Metal Organic Frameworks ◽  
Electrochemical Activity ◽  
Excellent Activity ◽  
Metal Organic ◽  
2D Nanosheets

We present a facile and low-cost method to shape ZIF into 2D nanosheets with exposed (002) facets and discover that they exhibit excellent activity for oxygen evolution reaction.

A novel phosphide derived from metal-organic frameworks as cost-effective electrocatalyst for oxygen evolution reaction

2021 ◽  
pp. 1-19
Author(s):  
Yi-Wen Yang ◽  
Bing-Ye Song
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Efficiency ◽  
Low Cost ◽  
Metal Organic Frameworks ◽  
Carbon Matrix ◽  
Metal Catalyst ◽  
Ni Doping ◽  
Positive Effects ◽  
Metal Organic

Abstract Developing an efficient, green and low-cost non noble metal catalyst towards oxygen evolution reaction (OER) has been urgent for new generation of sustainable energy technologies. Herein, the Co/Ni metal-organic frameworks (MOFs) derived metal phosphides/ carbon matrix composites are successfully produced by the precipitation-carbonization-phosphorization processes. The obtained samples are characterized and analyzed for structural and morphological investigation. Electrochemical tests for OER are performed in alkaline medium. The positive effects of P, Ni doping in MOFs on the structure and properties of composites have been analyzed. Benefitting from the unique structure of three-dimensional flower-like polyhedron with rich structure and higher porosity, the NiCo-P/NC catalyst exhibits the lowest overpotential of 0.32 V compared with the commercial IrO2 (0.34V) at 10 mA cm−2, as well as outstanding stability and kinetic mechanism. Besides, the cost of the proposed novel material is calculated to be 4.337 US$/g, which is only 1.57 % of that of commercial IrO2 (276 US$/g). The results obtained from the MOF-derived low-cost and high-efficiency OER catalyst would provide a new perspective on application of electrochemical storage and batteries.

Ni–Co hydroxide nanosheets on plasma-reduced Co-based metal–organic nanocages for electrocatalytic water oxidation

2019 ◽  
Vol 7 (9) ◽  
pp. 4950-4959 ◽  
Author(s):  
Wenxia Chen ◽  
Yiwei Zhang ◽  
Rong Huang ◽  
Yuming Zhou ◽  
Yangjin Wu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Oxygen Evolution ◽  
Chemical Stability ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Low Cost ◽  
High Electrical Conductivity ◽  
Formidable Challenge ◽  
Metal Organic ◽  
Energy Conversion Devices

Development of highly efficient and low-cost electrocatalysts for the oxygen evolution reaction (OER) with high electrical conductivity and chemical stability is critical for various energy conversion devices and systems, yet still remains a formidable challenge.

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...

A binuclear Co-based metal-organic framework towards efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Ning Liu ◽  
Qiaoqiao Zhang ◽  
Jingqi Guan
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Research Interest ◽  
Metal Organic ◽  
Organic Framework

Seeking for low-cost and high-performance electrocatalysts for oxygen evolution reaction (OER) has drawn enormous research interest in the last few years. Reported herein is the topotactic construction of a binuclear...

Controllable growth of graphdiyne layered nanosheets for high-performance water oxidation

2021 ◽  
Author(s):  
Shuya Zhao ◽  
Yurui Xue ◽  
Zhongqiang Wang ◽  
Zhiqiang Zheng ◽  
Xiaoyu Luan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
High Performance ◽  
Low Cost ◽  
Highly Active ◽  
Controllable Growth

Developing highly active, stable and low-cost electrocatalysts capable of an efficient oxygen evolution reaction (OER) is urgent and challenging.

Recent progress in pristine MOF-based catalysts for electrochemical hydrogen evolution, oxygen evolution and oxygen reduction

2021 ◽  
Author(s):  
Lili Fan ◽  
Zixi Kang ◽  
Mengfei Li ◽  
Daofeng Sun
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Hydrogen Evolution ◽  
Oxygen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Oxygen Evolution Reaction ◽  
Recent Progress ◽  
Metal Organic Frameworks ◽  
Reduction Reaction ◽  
Metal Organic

Among various kinds of materials that have been investigated as electrocatalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), metal-organic frameworks (MOFs) emerge as...

scholarly journals Spin-sate reconfiguration induced by alternating magnetic field for efficient oxygen evolution reaction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Gang Zhou ◽  
Peifang Wang ◽  
Hao Li ◽  
Bin Hu ◽  
Yan Sun ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Active Sites ◽  
Reaction Pathway ◽  
Low Cost ◽  
Orbital Interaction ◽  
New Paradigm ◽  
Metal Organic ◽  
Energy Conversion Devices

AbstractOxygen evolution reaction (OER) plays a determining role in electrochemical energy conversion devices, but challenges remain due to the lack of effective low-cost electrocatalysts and insufficient understanding about sluggish reaction kinetics. Distinguish from complex nano-structuring, this work focuses on the spin-related charge transfer and orbital interaction between catalysts and intermediates to accelerate catalytic reaction kinetics. Herein, we propose a simple magnetic-stimulation approach to rearrange spin electron occupation in noble-metal-free metal-organic frameworks (MOFs) with a feature of thermal-differentiated superlattice, in which the localized magnetic heating in periodic spatial distribution makes the spin flip occur at particular active sites, demonstrating a spin-dependent reaction pathway. As a result, the spin-rearranged Co0.8Mn0.2 MOF displays mass activities of 3514.7 A gmetal−1 with an overpotential of ~0.27 V, which is 21.1 times that of pristine MOF. Our findings provide a new paradigm for designing spin electrocatalysis and steering reaction kinetics.

π‐Conjugated Molecule Boosts Metal–Organic Frameworks as Efficient Oxygen Evolution Reaction Catalysts

Small ◽  
2018 ◽  
Vol 14 (50) ◽  
pp. 1803576 ◽  
Author(s):  
Rongmei Zhu ◽  
Jiawei Ding ◽  
Yuxia Xu ◽  
Jinpeng Yang ◽  
Qiang Xu ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Frameworks ◽  
Metal Organic ◽  
Conjugated Molecule
Sign in / Sign up

Export Citation Format

Share Document