In situ vibrational spectroscopy of adsorbed nitrogen in porous carbon materials

2018 ◽  
Vol 20 (22) ◽  
pp. 15411-15418 ◽  
Author(s):  
Paramita Ray ◽  
Enshi Xu ◽  
Vincent H. Crespi ◽  
John V. Badding ◽  
Angela D. Lueking
Keyword(s):  
Carbon Nanotubes ◽  
Vibrational Spectroscopy ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Nitrogen Adsorption ◽  
Single Wall Carbon Nanotubes ◽  
Porous Carbon Materials ◽  
Adsorbed Nitrogen ◽  
Stretch Mode

This study uses in situ vibrational spectroscopy to probe nitrogen adsorption to porous carbon materials, including single-wall carbon nanotubes and Maxsorb super-activated carbon, demonstrating how the nitrogen Raman stretch mode is perturbed by adsorption.

scholarly journals Formation of Porous Carbon Materials with in Situ Generated NaF Nanotemplate

2006 ◽  
Vol 110 (24) ◽  
pp. 11818-11822 ◽  
Author(s):  
Chih-Hao Huang ◽  
Yu-Hsu Chang ◽  
Hsiao-Wan Wang ◽  
Soofin Cheng ◽  
Chi-Young Lee ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
Porous Carbon Materials

Synthesis of Porous Carbon Material and its Use for Growing Carbon Nanotubes

2017 ◽  
Vol 886 ◽  
pp. 32-36 ◽  
Author(s):  
Meruyert Nazhipkyzy ◽  
Tolganay Temirgaliyeva ◽  
Aizhan A. Zhaparova ◽  
Araylim Nurgain ◽  
Bakhytzhan T. Lesbayev ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Raw Materials ◽  
Multiwall Carbon Nanotubes ◽  
Oil Industry ◽  
Porous Carbon Material ◽  
Porous Carbon Materials ◽  
New Methods ◽  
Multiwall Carbon

The scales of porous carbon materials usage are constrained by their considerably high cost. Therefore, development of new methods for production of porous carbon with the necessary complex of properties from cheap raw materials is actual. Also, porous carbon materials can be used for growth of carbon nanotubes as a matrices of catalyst particles. Herein, the method of fabrication porous carbon materials from waste of oil industry and their use as a matrices of catalyst particles to growth of CNT was developed. CNTs was synthesized by CVD using as hydrocarbon source - propan-butane gas mixture, as catalyst - Ni particles at 650°C, 700°C, 750°C, 800°C. Obtained carbon materials was investigated by Raman spectroscopy and by scanning electron microscope. Investigations on the properties of the obtained porous materials show soot particles sedimented in pores reduce well nanoparticles of metals from salts which act as nuclei for the growth of multiwall carbon nanotubes during pyrolysis of hydrocarbons by CVD method.

scholarly journals Adsorption enhancement of nitrogen gas by atomically heterogeneous nanospace of boron nitride

RSC Advances ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 838-846
Author(s):  
Jun Kimura ◽  
Takahiro Ohkubo ◽  
Yuta Nishina ◽  
Koki Urita ◽  
Yasushige Kuroda
Keyword(s):  
Boron Nitride ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Heterogeneous Surfaces ◽  
Nitrogen Gas ◽  
Porous Carbon Materials

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

scholarly journals Meso/Microporous Carbons from Conjugated Hyper-Crosslinked Polymers Based on Tetraphenylethene for High-Performance CO2 Capture and Supercapacitor

Molecules ◽  
2021 ◽  
Vol 26 (3) ◽  
pp. 738
Author(s):  
Mohamed Gamal Mohamed ◽  
Mahmoud M. M. Ahmed ◽  
Wei-Ting Du ◽  
Shiao-Wei Kuo
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
Total Pore Volume ◽  
Specific Area ◽  
High Specific Capacitance ◽  
Koh Activation ◽  
Co2 Uptake ◽  
Crosslinked Polymers ◽  
Good Thermal Stability ◽  
Porous Carbon Materials

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.

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