scholarly journals Facile synthesis of ultrahigh-surface-area hollow carbon nanospheres for enhanced adsorption and energy storage

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Fei Xu ◽  
Zhiwei Tang ◽  
Siqi Huang ◽  
Luyi Chen ◽  
Yeru Liang ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Electrochemical Performances ◽  
Outer Diameter ◽  
Carbon Nanospheres ◽  
Nanoporous Carbons ◽  
Formidable Challenge ◽  
Enhanced Adsorption ◽  
Hollow Carbon

Abstract Exceptionally large surface area and well-defined nanostructure are both critical in the field of nanoporous carbons for challenging energy and environmental issues. The pursuit of ultrahigh surface area while maintaining definite nanostructure remains a formidable challenge because extensive creation of pores will undoubtedly give rise to the damage of nanostructures, especially below 100 nm. Here we report that high surface area of up to 3,022 m2 g−1 can be achieved for hollow carbon nanospheres with an outer diameter of 69 nm by a simple carbonization procedure with carefully selected carbon precursors and carbonization conditions. The tailor-made pore structure of hollow carbon nanospheres enables target-oriented applications, as exemplified by their enhanced adsorption capability towards organic vapours, and electrochemical performances as electrodes for supercapacitors and sulphur host materials for lithium–sulphur batteries. The facile approach may open the doors for preparation of highly porous carbons with desired nanostructure for numerous applications.

scholarly journals Nitrogen and sulfur dual-doped high-surface-area hollow carbon nanospheres for efficient CO2 reduction

2020 ◽  
Vol 41 (5) ◽  
pp. 830-838 ◽  
Author(s):  
Guodong Li ◽  
Yongjie Qin ◽  
Yu Wu ◽  
Lei Pei ◽  
Qi Hu ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Co2 Reduction ◽  
Carbon Nanospheres ◽  
Hollow Carbon

Facile Synthesis of Nanoporous Carbons with High Surface Area and Their CO2 Adsorption Properties

2015 ◽  
Vol 44 (7) ◽  
pp. 1004-1006
Author(s):  
Takahito Mitome ◽  
Yoshiaki Uchida ◽  
Norikazu Nishiyama
Keyword(s):  
Surface Area ◽  
Co2 Adsorption ◽  
High Surface ◽  
High Surface Area ◽  
Adsorption Properties ◽  
Facile Synthesis ◽  
Nanoporous Carbons

Impact of Micropores and Dopants to Mitigate Lithium Polysulfides Shuttle over High Surface Area of ZIF-8 Derived Nanoporous Carbons

2020 ◽  
Vol 3 (6) ◽  
pp. 5523-5532 ◽  
Author(s):  
Masud Rana ◽  
Jeonghun Kim ◽  
Lingyi Peng ◽  
Hyunsoo Lim ◽  
Rejaul Kaiser ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Nanoporous Carbons

Double layer capacitance of high surface area carbon nanospheres derived from resorcinol–formaldehyde polymers

Carbon ◽  
2011 ◽  
Vol 49 (14) ◽  
pp. 4848-4857 ◽  
Author(s):  
Daisuke Tashima ◽  
Eri Yamamoto ◽  
Nanami Kai ◽  
Daisuke Fujikawa ◽  
Go Sakai ◽  
...  
Keyword(s):  
Surface Area ◽  
Double Layer ◽  
High Surface ◽  
High Surface Area ◽  
Double Layer Capacitance ◽  
Carbon Nanospheres ◽  
Resorcinol Formaldehyde

Organosilica with Grafted Polyacrylonitrile Brushes for High Surface Area Nitrogen-Enriched Nanoporous Carbons

2018 ◽  
Vol 30 (7) ◽  
pp. 2208-2212 ◽  
Author(s):  
Jianan Zhang ◽  
Yang Song ◽  
Yepin Zhao ◽  
Shuo Zhao ◽  
Jiajun Yan ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Nanoporous Carbons

scholarly journals Hyper-Crosslinked Polymer Nanocomposites Containing Mesoporous Silica Nanoparticles with Enhanced Adsorption Towards Polar Dyes

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1388
Author(s):  
Marco Guerritore ◽  
Rachele Castaldo ◽  
Brigida Silvestri ◽  
Roberto Avolio ◽  
Mariacristina Cocca ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Surface Area ◽  
Organic Dyes ◽  
Mesoporous Silica Nanoparticles ◽  
High Surface ◽  
High Surface Area ◽  
Reactive Dye ◽  
New Strategy ◽  
Enhanced Adsorption

The development of new styrene-based hyper-crosslinked nanocomposites (HCLN) containing mesoporous silica nanoparticles (MSN) is reported here as a new strategy to obtain functional high surface area materials with an enhanced hydrophilic character. The HCLN composition, morphology and porous structure were analyzed using a multi-technique approach. The HCLN displayed a high surface area (above 1600 m2/g) and higher microporosity than the corresponding hyper-crosslinked neat resin. The enhanced adsorption properties of the HCLN towards polar organic dyes was demonstrated through the adsorption of a reactive dye, Remazol Brilliant Blue R (RB). In particular, the HCLN containing 5phr MSN showed the highest adsorption capacity of RB.

scholarly journals Self-Nitrogen-Doped Nanoporous Carbons Derived from Poly(1,5-diaminonaphthalene) for the Removal of Toxic Dye Pollutants from Wastewater: Non-Linear Isotherm and Kinetic Analysis

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2563
Author(s):  
Ali Aldalbahi ◽  
Badr M. Thamer ◽  
Mostafizur Rahaman ◽  
Mohamed H. El-Newehy
Keyword(s):  
Surface Area ◽  
High Efficiency ◽  
High Surface ◽  
High Surface Area ◽  
Freundlich Isotherm ◽  
Vital Role ◽  
Isotherm Models ◽  
Order Kinetic ◽  
Nanoporous Carbons ◽  
Nitrogen Doped

The high surface area and porosity of self-nitrogen-doped porous carbons (SNPCs) nominates them for potential application in water treatment due to their high efficiency towards the removal of various pollutants. In this study, SNPCs were fabricated from poly(1,5-diaminonaphthalene) (P(1,5-DANPh) by single and simultaneous carbonization at the activation step at different temperatures (600, 700, and 800 °C). The carbonization’s temperature plays a vital role in controlling the nitrogen-doping, surface area, porosity, and morphology of SNPCs. The SNPCs-7 sample prepared at 700 °C showed the highest surface area (1678.8 m2 g−1) with pore volume (0.943 cm3 g−1) with a micro/meso porous structure. The prepared SNPCs were used as an effective adsorbent for removal of crystal violet dye (CV) from contaminated water. SNPCs-7 showed the highest adsorption of 487.53 mg g−1 and the adsorption capacity of the SNPCs samples follows the order SNPCs-7 > SNPCs-8 > SNPCs-6, which is consistent with the results of their surface area and porosity. The adsorption for CV dye followed Freundlich isotherm models and a pseudo second order kinetic model. The negative values of Gipps free energy (ΔG°) and positive value of enthalpy (ΔH°) indicated that the adsorption of CV dye onto the surface of SNPCs was a spontaneous and endothermic process, respectively. Based on the results, the adsorption mechanism of CV dye onto the surface of SNPCs was proposed.

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