MOF-derived M-OOH with rich oxygen defects by in-situ electro-oxidation reconstitution for highly efficient oxygen evolution reaction

2021 ◽  
Author(s):  
Zhikai Shi ◽  
Zebin Yu ◽  
Ronghua Jiang ◽  
Jun Huang ◽  
Yanping Hou ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Energy Production ◽  
Low Cost ◽  
Highly Efficient ◽  
Oxygen Defects ◽  
Electro Oxidation

The oxygen evolution reaction (OER) is an important half-reaction in the field of energy production. However, how effectively, simply, and greenly to prepare low-cost OER electrocatalysts remains a problem. Herein,...

In-situ coating amorphous boride on ternary pyrite-type boron sulfide for highly efficient oxygen evolution

2021 ◽  
Author(s):  
Tingting Li ◽  
Tianyun Jing ◽  
Dewei Rao ◽  
Xiaotian Jia ◽  
Yunpeng Zuo ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient ◽  
In Situ Coating ◽  
Electrochemical Oxygen

Multimetallic pyrite-type sulfides have been a promising electrocatalytic materials for electrochemical oxygen evolution reaction (OER), but still requires further improve due to the easily oxidization of surface atoms and the...

One-Step Synthesis of Rod-Shaped NiFe-MOF as a Highly Efficient Oxygen Evolution Catalyst

NANO ◽  
2019 ◽  
Vol 14 (08) ◽  
pp. 1950101 ◽  
Author(s):  
Dandan Zhang ◽  
Renxing Huang ◽  
Huaming Xie ◽  
Xingyong Liu ◽  
Ying Lei ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Low Cost ◽  
Metal Organic Framework ◽  
Electrochemical Techniques ◽  
Nitrogen Adsorption ◽  
Catalytic Performance ◽  
Highly Efficient ◽  
Transmission Electron

Development of low-cost, highly active catalyst for efficient oxygen evolution reaction based on earth-abundant metals is still a great challenge. Here, we report that a rod-like bimetallic NiFe metal-organic framework (NiFe-MOF) can directly act as a highly efficient oxygen evolution reaction (OER) catalyst synthesized by a convenient-to-operate hydrothermal method. The rod-like NiFe-MOF can derive 10[Formula: see text]mA[Formula: see text]cm[Formula: see text] with a low overpotential of only 26[Formula: see text]mV, and its Tafel slope is 40.82[Formula: see text]mV[Formula: see text]dec[Formula: see text], which is superior to that of monometallic Ni-MOF or Fe-MOF, and even can be comparable to that of RuO2. To identify the origin of enhancing OER activity, we resorted to X-ray diffraction, scanning electron microscope, transmission electron microscope, high resolution transmission electron microscopy image and nitrogen adsorption–desorption techniques and various electrochemical techniques to probe it gingerly. The results indicate that its high electrochemically active area and the synergistic effect of bimetallic node could be responsible for the surprisingly high catalytic performance of the NiFe-MOF. These results suggest that this kind of bimetallic MOF (NiFe-MOF) could be a promising electrocatalyst for oxygen evolution reaction.

In situ conversion of layered double hydroxide arrays into nanoflowers of NixV1−x-MOF as a highly efficient and stable electrocatalyst for the oxygen evolution reaction

2020 ◽  
Vol 10 (14) ◽  
pp. 4509-4512
Author(s):  
Mei-Hao Xiang ◽  
Changtong Lu ◽  
Lian Xia ◽  
Wenhui Zhang ◽  
Jian-Hui Jiang ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Layered Double Hydroxide ◽  
Oxygen Evolution Reaction ◽  
Alkaline Media ◽  
Highly Efficient ◽  
Double Hydroxide

The Ni0.9V0.1-MOF exhibits superior catalytic OER performance, needing an overpotential of 290 mV at 150 mA cm−2 in alkaline media.

Metal–organic-frameworks on 3D-printed electrodes: in situ electrochemical transformation towards the oxygen evolution reaction

2020 ◽  
Vol 4 (7) ◽  
pp. 3732-3738
Author(s):  
Yulong Ying ◽  
Michelle Philippa Browne ◽  
Martin Pumera
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Metal Organic Frameworks ◽  
Highly Efficient ◽  
Porous Oxides ◽  
Metal Organic ◽  
3D Printed ◽  
Stable Oxygen

In situ electrochemical transformation of ZIF-67 into porous oxides on a 3D-printed electrode towards the highly efficient and stable oxygen evolution reaction.

NiFe hydroxide nanosheet synthesized by in-situ chelation for highly efficient oxygen evolution reaction

2021 ◽  
Vol 258 ◽  
pp. 123918
Author(s):  
Jiehai Peng ◽  
Lei Zhang ◽  
Manxin Song ◽  
Wei Zhang ◽  
Kun Peng
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Highly Efficient
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