Synthetic Control of the Pore Dimension and Surface Area in Conjugated Microporous Polymer and Copolymer Networks

2008 ◽  
Vol 130 (24) ◽  
pp. 7710-7720 ◽  
Author(s):  
Jia-Xing Jiang ◽  
Fabing Su ◽  
Abbie Trewin ◽  
Colin D. Wood ◽  
Hongjun Niu ◽  
...  
2021 ◽  
Vol 9 ◽  
Author(s):  
Sabuj Kanti Das ◽  
Sanjib Shyamal ◽  
Manisha Das ◽  
Saptarsi Mondal ◽  
Avik Chowdhury ◽  
...  

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.


RSC Advances ◽  
2015 ◽  
Vol 5 (40) ◽  
pp. 31664-31669 ◽  
Author(s):  
Xingfeng Sheng ◽  
Hongchen Guo ◽  
Yusheng Qin ◽  
Xianhong Wang ◽  
Fosong Wang

A novel conjugated microporous polymer was solvothermally synthesized, which had high BET specific surface area and pore volume, and displayed excellent capacity to capture carbon dioxide and good catalytic activity for cyclic carbonate synthesis.


RSC Advances ◽  
2016 ◽  
Vol 6 (79) ◽  
pp. 75478-75481 ◽  
Author(s):  
Kyoung Chul Park ◽  
Jinhee Cho ◽  
Chang Yeon Lee

A novel porphyrin and pyrene-based conjugated microporous polymer (Por-Py-CMP) was synthesized. It exhibited a high BET surface area (1014 m2 g−1) and excellent capacity for capturing CO2 and I2. It also showed high efficiency for 1O2 generation.


2021 ◽  
Vol 126 ◽  
pp. 112121
Author(s):  
Yunfeng Wu ◽  
Yu Zang ◽  
Liang Xu ◽  
Jianjun Wang ◽  
Hongge Jia ◽  
...  

2021 ◽  
pp. 2108672
Author(s):  
Zongyao Zhou ◽  
Digambar B. Shinde ◽  
Dong Guo ◽  
Li Cao ◽  
Reham Al Nuaimi ◽  
...  

Author(s):  
Chen Yang ◽  
Zhonghua Cheng ◽  
Giorgio Divitini ◽  
Cheng Qian ◽  
Bo Hou ◽  
...  

The fabrication of single atomic photocatalysts via a simple pathway is a crucial challenge to enable efficient production of hydrogen. Herein, we demonstrate a gaseous diffusion strategy to construct single...


Author(s):  
Qiqi Sun ◽  
Qi Liu ◽  
Wen Gao ◽  
Chuanwang Xing ◽  
Jingshun Shen ◽  
...  

The cathodic photoelectrochemical (PEC) biosensor, is one of ideal systems for sensing applications owing to its advantages in the low-cost, simplicity of the detection and miniaturization of the sensors with...


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