scholarly journals High-Molecular-Weight PLA-b-PEO-b-PLA Triblock Copolymer Templated Large Mesoporous Carbons for Supercapacitors and CO2 Capture

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1193 ◽  
Author(s):  
Mohamed Gamal Mohamed ◽  
Wei-Shih Hung ◽  
Ahmed F. M. EL-Mahdy ◽  
Mahmoud M. M. Ahmed ◽  
Lizong Dai ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Co2 Capture ◽  
Triblock Copolymer ◽  
High Surface ◽  
High Surface Area ◽  
Mesoporous Carbons ◽  
Easy Method ◽  
Bonding Interaction ◽  
Good Energy

High-molecular-weight PLA440-b-PEO454-b-PLA440 (LEL) triblock copolymer was synthesized through simple ring-opening polymerization (ROP) by using the commercial homopolymer HO-PEO454-OH as the macro-initiator. The material acted as a single template to prepare the large mesoporous carbons by using resol-type phenolic resin as a carbon source. Self-assembled structures of phenolic/LEL blends mediated by hydrogen bonding interaction were determined by FTIR and SAXS analyses. Through thermal curing and carbonization procedures, large mesoporous carbons (>50 nm) with a cylindrical structure and high surface area (>600 m2/g) were obtained because the OH units of phenolics prefer to interact with PEO block rather than PLA block, as determined by FTIR spectroscopy. Furthermore, higher CO2 capture and good energy storage performance were observed for this large mesoporous carbon, confirming that the proposed approach provides an easy method for the preparation of large mesoporous materials.

scholarly journals Ultra-high surface area mesoporous carbons for colossal pre combustion CO2 capture and storage as materials for hydrogen purification

2017 ◽  
Vol 1 (6) ◽  
pp. 1414-1424 ◽  
Author(s):  
Michael Cox ◽  
Robert Mokaya
Keyword(s):  
Surface Area ◽  
Co2 Capture ◽  
Pore Volume ◽  
High Surface ◽  
High Surface Area ◽  
Hydrogen Purification ◽  
Mesoporous Carbons ◽  
Co2 Capture And Storage ◽  
And Storage

Mesoporous carbons (with up to 95% of pore volume from mesopores) with surface area and pore volume of ∼4000 m2 g−1 and ∼3.6 cm3 g−1, respectively, are excellent CO2 absorbers under pre combustion conditions and can store 55 mmol g−1 (i.e., 2.42 g g−1) or 930 g l−1 at 25 °C and 50 bar.

Synthesis of high surface area and functionalized nanoporous biocarbons and their efficiency for CO2 capture and supercapacitors

2021 ◽  
Author(s):  
Gurwinder Singh ◽  
Rohan Bahadur ◽  
Ajanya Maria Ruban ◽  
Jefrin Marykala Davidraj ◽  
Dawei Su ◽  
...  
Keyword(s):  
Energy Storage ◽  
Surface Area ◽  
Co2 Capture ◽  
Water Purification ◽  
High Surface ◽  
High Surface Area ◽  
Energy Storage And Conversion ◽  
Waste Biomass ◽  
Fabrication Technology ◽  
Significant Attention

Nanoporous biocarbons derived from waste biomass have created significant attention owing to their great potential for energy storage and conversion and water purification. However, the fabrication technology for these materials...

scholarly journals Developing Eco-Friendly and Cost-Effective Porous Adsorbent for Carbon Dioxide Capture

Molecules ◽  
2021 ◽  
Vol 26 (7) ◽  
pp. 1962
Author(s):  
Mahboubeh Nabavinia ◽  
Baishali Kanjilal ◽  
Noahiro Fujinuma ◽  
Amos Mugweru ◽  
Iman Noshadi
Keyword(s):  
Carbon Dioxide ◽  
Surface Area ◽  
Co2 Capture ◽  
High Surface ◽  
Scale Up ◽  
Polymer Networks ◽  
High Surface Area ◽  
Excellent Thermal Stability ◽  
Doped Polymers ◽  
Metal Doped

To address the issue of global warming and climate change issues, recent research efforts have highlighted opportunities for capturing and electrochemically converting carbon dioxide (CO2). Despite metal doped polymers receiving widespread attention in this respect, the structures hitherto reported lack in ease of synthesis with scale up feasibility. In this study, a series of mesoporous metal-doped polymers (MRFs) with tunable metal functionality and hierarchical porosity were successfully synthesized using a one-step copolymerization of resorcinol and formaldehyde with Polyethyleneimine (PEI) under solvothermal conditions. The effect of PEI and metal doping concentrations were observed on physical properties and adsorption results. The results confirmed the role of PEI on the mesoporosity of the polymer networks and high surface area in addition to enhanced CO2 capture capacity. The resulting Cobalt doped material shows excellent thermal stability and promising CO2 capture performance, with equilibrium adsorption of 2.3 mmol CO2/g at 0 °C and 1 bar for at a surface area 675.62 m2/g. This mesoporous polymer, with its ease of synthesis is a promising candidate for promising for CO2 capture and possible subsequent electrochemical conversion.

No More HF: Teflon-Assisted Ultrafast Removal of Silica to Generate High-Surface-Area Mesostructured Carbon for Enhanced CO2 Capture and Supercapacitor Performance

2016 ◽  
Vol 128 (6) ◽  
pp. 2072-2076 ◽  
Author(s):  
Dheeraj Kumar Singh ◽  
Katla Sai Krishna ◽  
Srinivasan Harish ◽  
Srinivasan Sampath ◽  
Muthusamy Eswaramoorthy
Keyword(s):  
Surface Area ◽  
Co2 Capture ◽  
High Surface ◽  
High Surface Area ◽  
Supercapacitor Performance ◽  
Mesostructured Carbon

scholarly journals MWCNT Decorated Rich N-Doped Porous Carbon with Tunable Porosity for CO2 Capture

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3451
Author(s):  
Yuanjie Xiong ◽  
Yuan Wang ◽  
Housheng Jiang ◽  
Shaojun Yuan
Keyword(s):  
Co2 Capture ◽  
Porous Carbon ◽  
High Surface ◽  
High Surface Area ◽  
Chemical Oxidation ◽  
Co2 Uptake ◽  
In Situ Chemical Oxidation ◽  
Pristine Mwcnts ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Designing of porous carbon system for CO2 uptake has attracted a plenty of interest due to the ever-increasing concerns about climate change and global warming. Herein, a novel N rich porous carbon is prepared by in-situ chemical oxidation polyaniline (PANI) on a surface of multi-walled carbon nanotubes (MWCNTs), and then activated with KOH. The porosity of such carbon materials can be tuned by rational introduction of MWCNTs, adjusting the amount of KOH, and controlling the pyrolysis temperature. The obtained M/P-0.1-600-2 adsorbent possesses a high surface area of 1017 m2 g−1 and a high N content of 3.11 at%. Such M/P-0.1-600-2 adsorbent delivers an enhanced CO2 capture capability of 2.63 mmol g−1 at 298.15 K and five bars, which is 14 times higher than that of pristine MWCNTs (0.18 mmol g−1). In addition, such M/P-0.1-600-2 adsorbent performs with a good stability, with almost no decay in a successive five adsorption-desorption cycles.

Rapid adsorption of alcohol biofuels by high surface area mesoporous carbons

2012 ◽  
Vol 148 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Thomas J. Levario ◽  
Mingzhi Dai ◽  
Wei Yuan ◽  
Bryan D. Vogt ◽  
David R. Nielsen
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Mesoporous Carbons ◽  
Rapid Adsorption

scholarly journals Metal-Free Modified Boron Nitride for Enhanced CO2 Capture

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 549
Author(s):  
Fereshteh Hojatisaeidi ◽  
Mauro Mureddu ◽  
Federica Dessì ◽  
Geraldine Durand ◽  
Basudeb Saha
Keyword(s):  
Boron Nitride ◽  
Co2 Capture ◽  
Co2 Adsorption ◽  
High Surface ◽  
High Surface Area ◽  
Textural Properties ◽  
Structure Directing Agent ◽  
Metal Free ◽  
Solid Adsorbent ◽  
Triblock Copolymer Surfactant

Porous boron nitride is a new class of solid adsorbent with applications in CO2 capture. In order to further enhance the adsorption capacities of materials, new strategies such as porosity tuning, element doping and surface modification have been taken into account. In this work, metal-free modification of porous boron nitride (BN) has been prepared by a structure directing agent via simple heat treatment under N2 flow. We have demonstrated that textural properties of BN play a pivotal role in CO2 adsorption behavior. Therefore, addition of a triblock copolymer surfactant (P123) has been adopted to improve the pore ordering and textural properties of porous BN and its influence on the morphological and structural properties of pristine BN has been characterized. The obtained BN-P123 exhibits a high surface area of 476 m2/g, a large pore volume of 0.83 cm3/g with an abundance of micropores. More importantly, after modification with P123 copolymer, the capacity of pure CO2 on porous BN has improved by about 34.5% compared to pristine BN (2.69 mmol/g for BN-P123 vs. 2.00 mmol/g for pristine BN under ambient condition). The unique characteristics of boron nitride opens up new routes for designing porous BN, which could be employed for optimizing CO2 adsorption.

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