Efficacious Electrochemical Oxygen Evolution from a Novel Co(II) Porphyrin/Pyrene-Based Conjugated Microporous Polymer

2018 ◽  
Vol 11 (1) ◽  
pp. 1520-1528 ◽  
Author(s):  
Subhajit Bhunia ◽  
Kousik Bhunia ◽  
Bidhan Chandra Patra ◽  
Sabuj Kanti Das ◽  
Debabrata Pradhan ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Conjugated Microporous Polymer ◽  
Microporous Polymer ◽  
Electrochemical Oxygen

scholarly journals Metal-Free Pyrene-Based Conjugated Microporous Polymer Catalyst Bearing N- and S-Sites for Photoelectrochemical Oxygen Evolution Reaction

2021 ◽  
Vol 9 ◽  
Author(s):  
Sabuj Kanti Das ◽  
Sanjib Shyamal ◽  
Manisha Das ◽  
Saptarsi Mondal ◽  
Avik Chowdhury ◽  
...  
Keyword(s):  
Surface Area ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Magic Angle Spinning ◽  
Bandgap Energy ◽  
Magic Angle ◽  
Low Bandgap ◽  
Metal Free ◽  
Conjugated Microporous Polymer ◽  
Microporous Polymer

The development of an efficient, sustainable, and inexpensive metal-free catalyst for oxygen evolution reaction (OER) via photoelectrochemical water splitting is very demanding for energy conversion processes such as green fuel generators, fuel cells, and metal-air batteries. Herein, we have developed a metal-free pyrene-based nitrogen and sulfur containing conjugated microporous polymer having a high Brunauer-Emmett-Teller surface area (761 m2 g−1) and a low bandgap of 2.09 eV for oxygen evolution reaction (OER) in alkaline solution. The π-conjugated as-synthesized porous organic material (PBTDZ) has been characterized by Fourier transform infrared spectroscopy (FT-IR), solid-state 13C (cross-polarization magic angle spinning-nuclear magnetic resonance) CP-MAS NMR, N2 adsorption/desorption analysis, field-emission scanning electron microscope (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and thermogravimetric analysis (TGA) experiments. The material acts as an efficient catalyst for photoelectrochemical OER with a current density of 80 mA/cm2 at 0.8 V vs. Ag/AgCl and delivered 104 µmol of oxygen in a 2 h run. The presence of low bandgap energy, π-conjugated conducting polymeric skeleton bearing donor heteroatoms (N and S), and higher specific surface area associated with inherent microporosity are responsible for this admirable photoelectrocatalytic activity of PBTDZ catalyst.

Bimetallic Conjugated Microporous Polymer Derived B, N-doped Porous Carbon Wrapped Co3Fe7 alloy Composite as Bifunctional Oxygen Electrocatalyst for Zn-air battery

2021 ◽  
Author(s):  
Jinli Dou ◽  
Hantian Luo ◽  
Chunli Zhang ◽  
Jingjing Lu ◽  
Xiujuan Luan ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Oxygen Evolution Reaction ◽  
High Performance ◽  
Reduction Reaction ◽  
Alloy Composite ◽  
Conjugated Microporous Polymer ◽  
Microporous Polymer ◽  
Air Battery

The exploration and development of high-performance, durable, and economic bifunctional electrocatalysts towards oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is essential but challenging for the development of rechargeable...

An Fe-doped NiTe bulk crystal as a robust catalyst for the electrochemical oxygen evolution reaction

2019 ◽  
Vol 55 (63) ◽  
pp. 9347-9350 ◽  
Author(s):  
Lei Zhong ◽  
Yufei Bao ◽  
Xu Yu ◽  
Ligang Feng
Keyword(s):  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Bulk Crystal ◽  
Stable Performance ◽  
Electrochemical Oxygen

An Fe doped NiTe bulk crystal was demonstrated to exhibit an extremely active and stable performance for the electrochemical oxygen evolution reaction.

Understanding What Controls the Rate of Electrochemical Oxygen Evolution

Joule ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 16-18
Author(s):  
Reshma R. Rao ◽  
Ifan E.L. Stephens ◽  
James R. Durrant
Keyword(s):  
Oxygen Evolution ◽  
Electrochemical Oxygen

Interface Engineered NiFe2O4−x/NiMoO4 Nanowire Arrays for Electrochemical Oxygen Evolution

2021 ◽  
pp. 119857
Author(s):  
Juhyung Choi ◽  
Daekyu Kim ◽  
Weiran Zheng ◽  
Bingyi Yan ◽  
Yong Li ◽  
...  
Keyword(s):  
Oxygen Evolution ◽  
Nanowire Arrays ◽  
Electrochemical Oxygen

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...

Synthesis of high-performance conjugated microporous polymer/TiO2 photocatalytic antibacterial nanocomposites

2021 ◽  
Vol 126 ◽  
pp. 112121
Author(s):  
Yunfeng Wu ◽  
Yu Zang ◽  
Liang Xu ◽  
Jianjun Wang ◽  
Hongge Jia ◽  
...  
Keyword(s):  
High Performance ◽  
Conjugated Microporous Polymer ◽  
Microporous Polymer

Flexible Ionic Conjugated Microporous Polymer Membranes for Fast and Selective Ion Transport

2021 ◽  
pp. 2108672
Author(s):  
Zongyao Zhou ◽  
Digambar B. Shinde ◽  
Dong Guo ◽  
Li Cao ◽  
Reham Al Nuaimi ◽  
...  
Keyword(s):  
Ion Transport ◽  
Polymer Membranes ◽  
Conjugated Microporous Polymer ◽  
Microporous Polymer
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