نتایج جستجو برای: sulfonated porous carbon

تعداد نتایج: 327024  

Journal: :Nanoscale 2016
Jianlong Ge Gang Fan Yang Si Jianxin He Hak-Yong Kim Bin Ding Salem S Al-Deyab Mohamed El-Newehy Jianyong Yu

Flexible membranes created from porous carbon nanofibers (CNFs) hold great promise in the next generation wearable energy storage devices, but challenges still remain due to the poor mechanical properties of porous carbon nanofibers. Here, we report a facile strategy to fabricate elastic and hierarchical porous CNF membranes with NiFe2O4 nanocrystals embedded via multicomponent electrospinning ...

2001
Denise Alves Fungaro

The electrochemical polymerization of 2-aminobenzenesulfonic acid with and without aniline has been carried by cyclic potencial sweep in sulfuric acid solution at the glassy carbon electrode. The polymer and copolymer formed have been characterized voltammetrically. The sulfonated polyaniline coated mercury thin-film electrodes have been evaluated for use with anodic stripping voltammetry. The ...

Journal: :Journal of the American Chemical Society 2006
Yubing Wang Zafar Iqbal Somenath Mitra

Microwave-assisted functionalization of single-wall carbon nanotubes (SWNTs) in a mixture of nitric and sulfuric acids was carried out to synthesize highly water-dispersible nanotubes. Stable concentrations as high as 10 mg/mL were obtained in deionized water that are nearly 2 orders of magnitude higher than those previously reported. This was after only 3 min of functionalization reaction. Fou...

2011
Marcio R. Loos Dominique Gomes

The tensile properties of sulfonated polyoxadiazoles have been studied as a function of molecular weight and sulfonation level. All sulfonated polyoxadiazoles synthesized through a polycondensation reaction of the hydrazine sulphate salt and a dicarboxylic acid in poly(phosphoric acid) exhibit rigid-ductile behavior with high Young’s modulus (3-4 GPa) and with larger elongations at break (up to...

2007
Thomas Roussel Roland J.-M. Pellenq Christophe Bichara

The first step of this work was to generate using atomistic simulation, a porous carbon material with an ordered pore network using the faujasite Y zeolite as a templating matrix. For this purpose, we used the Grand Canonical Monte-Carlo (GCMC) technique in which the carbon-carbon interactions were described with reactive bond-order potential assuming the carbonzeolite interactions to be releva...

Journal: :iranian journal of pharmaceutical sciences 0
seyed reza ghaffarian polymer engineering faculty, amirkabir university of technology, tehran, iran homayoun moaddel department of materials science and engineering, university of california,los angeles, ca, usa fatemeh s. majedi biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran mohammad mahdi hasani-sadrabadi polymer engineering faculty, amirkabir university of technology, tehran, iran biomedical engineering faculty, amirkabir university of technology, tehran, iran young researcher club, islamic azad university, south tehran branch, tehran, iran

the muscle-like technology would be of enormous advantages for biomedical applications such as medical implants and human assist devices. ionic polymer metal composites (ipmcs) are one kind of biomimetic actuators. an ionic polymer metal composite composed from an ionomer with high ion exchange capacity that packed between two thin metal layers. in the present study we focused on the preparatio...

2014
Ying Liu Jiangwei Wang Yunhua Xu Yujie Zhu David Bigio Chunsheng Wang

For the first time, lithiation/delithiation behavior of tellurium at room temperature was investigated using tellurium/porous carbon (Te/C) composite electrodes. The Te/C composite is synthesized by the infusion of liquid tellurium into a porous carbon host at the high temperature of 600 C under vacuum. Owing to the physical confinement of Te by porous carbon matrix, the Te/C electrode is capab...

Journal: :ACS applied materials & interfaces 2014
Kai Zhou Weijia Zhou Xiaojun Liu Yan Wang Jinquan Wan Shaowei Chen

Nitrogen self-doped porous carbon was prepared by calcination treatment of surplus sludge, a toxic byproduct from microbial wastewater treatments, and exhibited a mesoporous structure, as manifested in scanning and transmission electron microscopic measurements. Nitrogen adsorption/desorption studies showed that the porous carbon featured a BET surface area as high as 310.8 m(2)/g and a rather ...

Journal: :Chemical communications 2010
Shengqian Ma Hong-Cai Zhou

Depletion of fossil oil deposits and the escalating threat of global warming have put clean energy research, which includes the search for clean energy carriers such as hydrogen and methane as well as the reduction of carbon dioxide emissions, on the urgent agenda. A significant technical challenge has been recognized as the development of a viable method to efficiently trap hydrogen, methane a...

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