Results 171 to 180 of about 103,727 (217)

Tailoring porous carbon spheres for supercapacitors

Nanoscale, 2018
In this review, we provide a comprehensive summarization of the syntheses of porous carbon spheres with tailored structures for supercapacitors. Five categories of synthetic methodologies are generally discussed.
Ming Xu, Qiang Yu, Zhenhui Liu, Jianshuai Lv, Sitian Lian, Bin Hu, Liqiang Mai, Liang Zhou   +7 more
openaire   +6 more sources

Template Approaches to Preparing Porous Carbon

2007
In comparison with traditional porous carbon materials such as activated carbons and carbon blacks, template-synthesized carbons can more easily and controllably achieve prescribed physical, chemical, and morphological properties for a wide range of novel applications.
Su, Fabing, Zhou, Zuocheng, Guo, Wanping, Liu, Jiajia, Tian, Xiao Ning, Zhao, X. S.   +5 more
openaire   +3 more sources

Gold nanoparticles encapsulated in porous carbon

Chemical Communications, 2012
Gold nanoparticles encapsulated in porous carbon spheres with high surface areas (~800 m(2) g(-1)) have been synthesized by ultrasonic spray pyrolysis (USP). The porous carbon-encapsulated gold nanoparticles exhibit excellent catalytic activity toward the reductions of both hydrophilic and hydrophobic nitroaromatics.
Jinrui, Guo, Kenneth S, Suslick
openaire   +2 more sources

Porous carbon-carbon composites for fuel cells

Fibre Chemistry, 2007
Technology for fabricating porous current-conducting gas-diffusion supports for fuel element electrodes made of carbon-carbon composites with the structure of fabrics, knits, and nonwovens was developed. The process scheme for manufacturing gas-diffusion electrodes for fuel cells was examined.
A. A. Tarasenko, A. A. Lysenko, V. A. Lysenko   +2 more
openaire   +1 more source

Micromechanical Modeling of Porous Carbon/Carbon Composites

Mechanics of Advanced Materials and Structures, 2005
A procedure to model fiber-reinforced composites containing pores of irregular shapes is presented. Closed-form expressions for contributions of fibers and pores into effective elastic moduli are provided. The procedure is applied to predict the transverse elastic properties of unidirectional carbon/carbon composites (carbon fibers in pyrolytic carbon ...
I. Tsukrov, R. Piat, J. Novak, E. Schnack   +3 more
openaire   +1 more source

Porous carbon and carbon composite hollow spheres

Colloid and Polymer Science, 2008
In this communication, we propose a template approach toward synthesis of carbon hollow spheres by direct carbonization of highly crosslinked sulfonated polystyrene gel hollow spheres (sPS). The sulfonic acid group can facilitate carbonization. Moreover, the acid group can also induce a favorable growth of other materials within the sPS gel-forming ...
Shujiang Ding, Chengliang Zhang, Xiaozhong Qu, Jiguang Liu, Yunfeng Lu, Zhenzhong Yang   +5 more
openaire   +1 more source

Porous Carbon—Carbon Absorbers for Oil Products

Fibre Chemistry, 2016
Environmental contamination by oil products was examined. A method for producing a composite for absorption of oil products was proposed. The composite properties were investigated.
N. S. Lukicheva, A. Yu. Kuznetsov, A. A. Lysenko, O. V. Petrova   +3 more
openaire   +1 more source

Gasification of porous carbon particle by carbon dioxide

Russian Journal of Physical Chemistry B, 2010
The diffusive-kinetic model of porous carbon particles gasification is developed. The model considers the processes of heat and mass transfer both inside the porous particle and above it. Analysis of the model shows that heat and mass transfer have an influence to the gasification process to a marked degree.
V. M. Gremyachkin, E. P. Mazanchenko
openaire   +1 more source

Porous concrete as a template for the synthesis of porous carbon materials

Carbon, 2012
The potential of industrial porous concrete for using as a template for the synthesis of porous carbon materials has been investigated. Carbon replicas of porous concrete have been prepared by carbonization of sucrose. The pores of the resulting carbon materials range from the macropore to the micropore region, pointing to a hierarchy.
David Günther, Jens Beckmann, Michael Schöneich, Peer Schmidt, Olaf Klepel   +4 more
openaire   +1 more source

Porous Properties of Carbon/Carbon Composite Xerogels

Materials Science Forum, 2018
Carbon/carbon composite xerogels are prepared by a vacuum drying technique whereas a carbon cryogel is synthesized by a freeze drying technique to compare the effect of these drying methods at the selective synthesis condition. Resorcinol and formaldehyde are used to prepare a matrix phase and cotton fibers are acted as a disperse phase of the carbon ...
openaire   +1 more source