scholarly journals Carbon aerogels with improved flexibility by sphere templating

RSC Advances ◽  
2018 ◽  
Vol 8 (48) ◽  
pp. 27326-27331 ◽  
Author(s):  
Miralem Salihovic ◽  
Nicola Hüsing ◽  
Johannes Bernardi ◽  
Volker Presser ◽  
Michael S. Elsaesser
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Inert Atmosphere ◽  
Carbon Aerogels ◽  
Resorcinol Formaldehyde ◽  
Soft Templating

Using soft templating, mechanically reversible compressible resorcinol–formaldehyde aerogels can be converted into mechanically reversible compressible carbon aerogels with high surface area by carbonization in an inert atmosphere.

Anisotropic high-surface-area carbon aerogels

2004 ◽  
Vol 350 ◽  
pp. 136-144 ◽  
Author(s):  
Sandrine Berthon-Fabry ◽  
David Langohr ◽  
Patrick Achard ◽  
Daniel Charrier ◽  
David Djurado ◽  
...  
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Aerogels

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

Rapid preparation of high surface area iron oxide and alumina nanoclusters through a soft templating approach of sol–gel precursors

2013 ◽  
Vol 37 (1) ◽  
pp. 245-249 ◽  
Author(s):  
Fernando Hung-Low ◽  
Geneva R. Peterson ◽  
Marauo Davis ◽  
Louisa J. Hope-Weeks
Keyword(s):  
Iron Oxide ◽  
Surface Area ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Rapid Preparation ◽  
Soft Templating

High Surface Area, Mesoporous, Glassy Alumina with a Controllable Pore Size by Nanocasting from Carbon Aerogels

2005 ◽  
Vol 11 (5) ◽  
pp. 1658-1664 ◽  
Author(s):  
Wen-Cui Li ◽  
An-Hui Lu ◽  
Wolfgang Schmidt ◽  
Ferdi Schüth
Keyword(s):  
Pore Size ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Aerogels

High surface area carbon aerogels for supercapacitors

1998 ◽  
Vol 225 ◽  
pp. 81-85 ◽  
Author(s):  
R Saliger ◽  
U Fischer ◽  
C Herta ◽  
J Fricke
Keyword(s):  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Aerogels

Template-Method Synthesis of High-Surface-Area Monolithic Carbon Aerogels and Their Applications for Hydrogen and Deuterium Adsorption

2017 ◽  
Vol 16 (05n06) ◽  
pp. 1750010 ◽  
Author(s):  
Bowei Chen ◽  
Xiaojun Wang ◽  
Jiayi Zhu ◽  
Yutie Bi ◽  
Xuan Luo ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Surface Area ◽  
Hydrogen Adsorption ◽  
High Surface ◽  
High Surface Area ◽  
Carbon Aerogel ◽  
Molar Ratio ◽  
Template Method ◽  
Carbon Aerogels ◽  
Polymer Templates

In this work, novel monolithic carbon aerogels obtained by using a polymer template method were characterized and evaluated for their applications in the hydrogen and deuterium adsorption capacity. The properties (i.e., surface area, pore size distribution, hydrogen and deuterium adsorption capacities, etc.) of the carbon aerogels were affected by the polymer templates. The results showed that the carbon aerogel with the molar ratio of polyacrylic acid (PAA) to zinc chloride (ZnCl2) being 0.75:40 was featured the highest surface area (1806 m2/g) and had the highest hydrogen adsorption capacity. Moreover, the deuterium adsorption capacity of the carbon aerogel was to be further elucidated.

Fabrication of Ultra-Low Density, High Surface Area Carbon Aerogels and their Application in Supercapacitors

2016 ◽  
Vol 852 ◽  
pp. 1349-1355
Author(s):  
Jia Yi Zhu ◽  
Xi Yang ◽  
Zhi Bing Fu ◽  
Chao Yang Wang ◽  
Wei Dong Wu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Surface Area ◽  
High Surface ◽  
High Surface Area ◽  
Three Dimensional ◽  
Carbon Aerogel ◽  
Carbon Aerogels ◽  
Low Density ◽  
Organic Aerogel ◽  
Cyclic Voltammetry Test

The ultra-low density carbon aerogel, as low as 20 mg/cm3, was fabricated by pyrolysis of the organic aerogel formed by aqueous condensation of resorcinol and formaldehyde. Its surface area was as high as 1783 m2/g and it was used for investigation of electrochemical capacitive behaviours. The ultra-low density carbon aerogel displayed capacitive performance (110 F/g at 0.2 A/g) in 6 M KOH aqueous solution. Additionally, over 98% of the initial capacitance was retained after repeating the cyclic voltammetry test for 1000 cycles. The electrochemical performance might be attributed to the combination of three dimensional “opened” structure and high surface area of the carbon aerogel.

scholarly journals Electrochemical Behavior of Carbon Aerogels Derived From Different Precursors

1995 ◽  
Vol 393 ◽  
Author(s):  
R.W. Pekala ◽  
C.T. Alviso ◽  
J.K. Nielsen ◽  
T.D. Tran ◽  
G.A.M. Reynolds ◽  
...  
Keyword(s):  
Cell Structure ◽  
High Surface ◽  
Sol Gel ◽  
High Surface Area ◽  
Supercritical Drying ◽  
Inert Atmosphere ◽  
Solid Matrix ◽  
Carbon Aerogels ◽  
Energy Storage Devices ◽  
Electrochemical Double Layer

ABSTRACTThe ability to tailor the structure and properties of porous carbons has led to their increased use as electrodes in energy storage devices. Our research focuses on the synthesis and characterization of carbon aerogels for use in electrochemical double layer capacitors. Carbon aerogels are formed from the sol-gel polymerization of (1) resorcinol-formaldehyde or (2) phenolic-furfural, followed by supercritical drying from carbon dioxide, and subsequent pyrolysis in an inert atmosphere. These materials can be produced as monoliths, composites, thin films, powders, or microspheres. In all cases, the aerogels have an open-cell structure with an ultrafine pore size (<100 nm), high surface area (400-1100 m2/g), and a solid matrix composed of interconnected particles, fibers, or platelets with characteristic dimensions of 10 nm. This paper examines the effects of the carbon precursor and processing conditions on electrochemical performance in aqueous and organic electrolytes.

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