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

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 55 (6) ◽  
pp. 2032-2036 ◽  
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

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.

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.

scholarly journals Facile Hydrothermal Synthesis and Supercapacitor Performance of Mesoporous Necklace-Type ZnCo2O4 Nanowires

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1516
Author(s):  
John Anthuvan Rajesh ◽  
Kwang-Soon Ahn
Keyword(s):  
Surface Area ◽  
High Surface ◽  
Specific Capacity ◽  
High Surface Area ◽  
Negative Electrode ◽  
Building Blocks ◽  
High Specific Capacity ◽  
Supercapacitor Performance ◽  
Subsequent Calcination ◽  
Excellent Stability

In this work, mesoporous ZnCo2O4 electrode material with necklace-type nanowires was synthesized by a simple hydrothermal method using water/ethylene glycol mixed solvent and subsequent calcination treatment. The ZnCo2O4 nanowires were assembled by several tiny building blocks of nanoparticles which led to the growth of necklace-type nanowires. The as-synthesized ZnCo2O4 nanowires had porous structures with a high surface area of 25.33 m2 g−1 and with an average mesopore of 23.13 nm. Due to the higher surface area and mesopores, the as-prepared necklace-type ZnCo2O4 nanowires delivered a high specific capacity of 439.6 C g−1 (1099 F g−1) at a current density of 1 A g−1, decent rate performance (47.31% retention at 20 A g−1), and good cyclic stability (84.82 % capacity retention after 5000 cycles). Moreover, a hybrid supercapacitor was fabricated with ZnCo2O4 nanowires as a positive electrode and activated carbon (AC) as a negative electrode (ZnCo2O4 nanowires//AC), which delivered an energy density of 41.87 Wh kg−1 at a power density of 800 W kg−1. The high electrochemical performance and excellent stability of the necklace-type ZnCo2O4 nanowires relate to their unique architecture, high surface area, mesoporous nature, and the synergistic effect between Zn and Co metals.

Hierarchical nanosheet-based NiMoO4 nanotubes: synthesis and high supercapacitor performance

2015 ◽  
Vol 3 (2) ◽  
pp. 739-745 ◽  
Author(s):  
Zhuoxun Yin ◽  
Shen Zhang ◽  
Yujin Chen ◽  
Peng Gao ◽  
Chunling Zhu ◽  
...  
Keyword(s):  
Surface Area ◽  
Hydrothermal Treatment ◽  
High Surface ◽  
High Surface Area ◽  
Diffusion Reaction ◽  
Electrochemical Performances ◽  
Reaction Method ◽  
Ultrathin Nanosheets ◽  
Supercapacitor Performance

Hierarchical nanosheet-based NiMoO4 nanotubes with a high surface area of 128.5 m2 g−1, composed of highly ordered ultrathin nanosheets with a thickness of less than 10 nm, were synthesized by a hydrothermal treatment and a subsequent in situ diffusion reaction method, exhibiting excellent electrochemical performances.

High surface area hypercrosslinked microporous organic polymer networks based on tetraphenylethylene for CO2 capture

2014 ◽  
Vol 2 (21) ◽  
pp. 8054-8059 ◽  
Author(s):  
Shuwen Yao ◽  
Xiao Yang ◽  
Miao Yu ◽  
Yinghua Zhang ◽  
Jia-Xing Jiang
Keyword(s):  
Surface Area ◽  
Co2 Capture ◽  
High Surface ◽  
Polymer Networks ◽  
High Surface Area ◽  
Organic Polymer

A series of hypercrosslinked microporous organic copolymer networks was synthesized via Friedel–Crafts alkylation of tetraphenylethylene (TPE) and/or 1,1,2,2-tetraphenylethane-1,2-diol (TPD) promoted by anhydrous FeCl3.

High-surface-area porous carbons produced by the mild KOH activation of a chitosan hydrochar and their CO2 capture

Carbon ◽  
2022 ◽  
Vol 188 ◽  
pp. 545
Author(s):  
Jing Wang ◽  
Shuang Chen ◽  
Jia-yu Xu ◽  
Li-cheng Liu ◽  
Ji-cheng Zhou ◽  
...  
Keyword(s):  
Surface Area ◽  
Co2 Capture ◽  
High Surface ◽  
High Surface Area ◽  
Koh Activation ◽  
Porous Carbons

Synthesis of High Surface Area Carbon Nanospheres with Wrinkled Cages and Their CO2 Capture Studies

2018 ◽  
Vol 3 (38) ◽  
pp. 10684-10688 ◽  
Author(s):  
Baljeet Singh ◽  
Ayan Maity ◽  
Vivek Polshettiwar
Keyword(s):  
Surface Area ◽  
Co2 Capture ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Nanospheres
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