Carbon foams: 3D porous carbon materials holding immense potential

2020 ◽  
Vol 8 (45) ◽  
pp. 23699-23723 ◽  
Author(s):  
Heguang Liu ◽  
Shaoqing Wu ◽  
Na Tian ◽  
Fuxue Yan ◽  
Caiyin You ◽  
...  

Carbon foam is a representative of porous-structured carbon material, which has attracted increasing attention from academic communities and industry because of its unique 3D porous structure and excellent performance for various applications.

2020 ◽  
Vol 36 (7) ◽  
pp. 771-787 ◽  
Author(s):  
Víctor Manuel Ortiz-Martínez ◽  
Lucía Gómez-Coma ◽  
Alfredo Ortiz ◽  
Inmaculada Ortiz

AbstractPorous carbon materials attract great interest because of the wide range of applications in electrochemical energy systems, especially in the case of structured and porosity-tuned carbons prepared by template-assisted methods. The use of surfactant prevents the collapse of the porous structure during the air-drying stage in the sol-gel process, which is regarded as a critical stage in this method. This work offers an overview on the use of surfactants as templates for the manufacture of tunable porous carbon materials by the sol-gel method mainly using the polymerization reaction of resorcinol (R) and formaldehyde (F). The use of surfactants avoids the application of other economically disadvantaged drying techniques such as supercritical fluids and freeze-drying. The surfactant-assisted sol-gel methods reported in the literature for the fabrication of porous carbons are widely discussed, as well as the potentiality of the synthesized materials as electrodes in electrochemical systems, which greatly depends on the final porous structure. Besides, this work offers information on hybrid methods in which surfactants are used not only for the fabrication of porous carbon materials with mesoporous/microporous structure but also for the development of advanced structures and composites, including nanomaterials with enhanced properties. Finally, future prospects in the synthesis of carbon materials prepared by surfactant-assisted sol-gel method are presented.


2015 ◽  
Vol 17 (3) ◽  
pp. 1668-1674 ◽  
Author(s):  
Guiyin Xu ◽  
Jinpeng Han ◽  
Bing Ding ◽  
Ping Nie ◽  
Jin Pan ◽  
...  

Biomass-derived porous carbon material with sulfur and nitrogen dual-doping exhibits great potential for energy storage devices.


2020 ◽  
Vol 22 (3) ◽  
pp. 742-752 ◽  
Author(s):  
Xiwei Hu ◽  
Xun Sun ◽  
Qiang Song ◽  
Yangyang Zhu ◽  
Yu Long ◽  
...  

Polymer-derived N,S co-doped carbon materials (PDNSC-X) with a hierarchically porous structure were facilely prepared by a cost-effective and convenient strategy and were subsequently used as efficient metal-free catalysts.


Nanoscale ◽  
2020 ◽  
Vol 12 (38) ◽  
pp. 19804-19813 ◽  
Author(s):  
Wen-Huan Huang ◽  
Xi-Ming Li ◽  
Dan-Yang Yu ◽  
Xiu-Fang Yang ◽  
Li-Feng Wang ◽  
...  

A novel CoMo bimetallic N-doped carbon material embedded with highly dispersed 4.7% Pt nanoparticles as a pH-universal hydrogen evolution reaction electrocatalyst with excellent durability.


2018 ◽  
Vol 6 (3) ◽  
pp. 878-883 ◽  
Author(s):  
Wei Li ◽  
Wei Ding ◽  
Jinxia Jiang ◽  
Qian He ◽  
Sicheng Tao ◽  
...  

By a novel phase-transition-assisted strategy, the porosity of carbon materials can be fine tuned from the micrometer to the nanometer level, and the functionality of carbon surfaces can be better controlled to achieve an excellent performance for the catalysis of the oxygen reduction reaction.


RSC Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 838-846
Author(s):  
Jun Kimura ◽  
Takahiro Ohkubo ◽  
Yuta Nishina ◽  
Koki Urita ◽  
Yasushige Kuroda

Porous BN with atomically heterogeneous surfaces can more strongly adsorb dinitrogen molecules than typical porous carbon materials.


Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 738
Author(s):  
Mohamed Gamal Mohamed ◽  
Mahmoud M. M. Ahmed ◽  
Wei-Ting Du ◽  
Shiao-Wei Kuo

In this study, we successfully synthesized two types of meso/microporous carbon materials through the carbonization and potassium hydroxide (KOH) activation for two different kinds of hyper-crosslinked polymers of TPE-CPOP1 and TPE-CPOP2, which were synthesized by using Friedel–Crafts reaction of tetraphenylethene (TPE) monomer with or without cyanuric chloride in the presence of AlCl3 as a catalyst. The resultant porous carbon materials exhibited the high specific area (up to 1100 m2 g−1), total pore volume, good thermal stability, and amorphous character based on thermogravimetric (TGA), N2 adsoprtion/desorption, and powder X-ray diffraction (PXRD) analyses. The as-prepared TPE-CPOP1 after thermal treatment at 800 °C (TPE-CPOP1-800) displayed excellent CO2 uptake performance (1.74 mmol g−1 at 298 K and 3.19 mmol g−1 at 273 K). Furthermore, this material possesses a high specific capacitance of 453 F g−1 at 5 mV s−1 comparable to others porous carbon materials with excellent columbic efficiencies for 10,000 cycle at 20 A g−1.


2021 ◽  
Author(s):  
Sirui Liu ◽  
Ya ping Xu ◽  
Jinggao Wu ◽  
Jing Huang

Supercapacitors are of paramount importance for next-generation applications, demonstrating high energy output, an ultra-long cycle life and utilizing green and sustainable materials. Herein, we utilize celery, a common biomass from...


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