نتایج جستجو برای: carbon nanofibers

تعداد نتایج: 286853  

2009
Khalid Saeed Soo-Young Park Sajjad Haider Jong-Beom Baek

Multiwalled carbon nanotube/nylon-6 nanocomposites (MWNT/nylon-6) were prepared by in situ polymerization, whereby functionalized MWNTs (F-MWNTs) and pristine MWNTs (P-MWNTs) were used as reinforcing materials. The F-MWNTs were functionalized by Friedel-Crafts acylation, which introduced aromatic amine (COC(6)H(4)-NH(2)) groups onto the side wall. Scanning electron microscopy (SEM) images obtai...

Journal: :Journal of nanoscience and nanotechnology 2008
R K Garg S S Kim D B Hash J P Gore T S Fisher

Many engineering applications require carbon nanotubes with specific characteristics such as wall structure, chirality and alignment. However, precise control of nanotube properties grown to application specifications remains a significant challenge. Plasma-enhanced chemical vapor deposition (PECVD) offers a variety of advantages in the synthesis of carbon nanotubes in that several important sy...

Journal: :The Analyst 2007
Lina Wu Xueji Zhang Huangxian Ju

A highly sensitive method for the rapid flow injection amperometric detection of hydrogen peroxide is reported, which is based on the excellent catalytic activity of carbon nanofiber coated simply on an electrode towards the reduction of H2O2 and has high throughput and interesting potential for the development of rapid and highly sensitive biosensors.

Journal: :ACS applied materials & interfaces 2014
Ericka N J Ford Nisaraporn Suthiwangcharoen Paola A D'Angelo Ramanathan Nagarajan

Electrospun membranes were studied for the chemical deactivation of threat agents by means of enzymatic proteins. Protein loading and the surface chemistry of hybrid nanofibers influenced the efficacy by which embedded enzymes could digest the substrate of interest. Bovine serum albumin (BSA), selected as a model protein, was electrospun into biologically active fibers of poly(vinyl alcohol), P...

Journal: :Physical review letters 2005
Motoo Fujii Xing Zhang Huaqing Xie Hiroki Ago Koji Takahashi Tatsuya Ikuta Hidekazu Abe Tetsuo Shimizu

Although the thermal properties of millimeter-sized carbon nanotube mats and packed carbon nanofibers have been readily measured, measurements for a single nanotube are extremely difficult. Here, we report a novel method that can reliably measure the thermal conductivity of a single carbon nanotube using a suspended sample-attached T-type nanosensor. Our experimental results show that the therm...

Journal: :مجله علوم اعصاب شفای خاتم 0
hassan hoseini ravandi shefa neuroscience research center, khatam alanbia hospital, tehran, iran maryam borhani-haghighi shefa neuroscience research center, khatam alanbia hospital, tehran, iran

it was estimated that 3 million people suffered from spinal cord injury. unfortunately up to date, there are not any reliable clinical treatments for spinal cord injury and researches for treatments of sci have focused on medication, surgery, stem cell transplantation, molecular therapy and tissue engineering. also scientists are trying to use a combination of stem cells and nanotechnology scie...

Journal: :Applied sciences 2021

Electrospinning techniques have become an efficient way to produce continuous and porous carbon nanofibers. In view of CO2 capture as one the important works for alleviating global warming, this study intended synthesize polyacrylonitrile (PAN)-based activated nanofibers (ACNFs) using electrospinning processes capture. Different structures PAN-based ACNFs were prepared, including solid, hollow,...

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 ...

Journal: :Nanoscale 2014
Chaonan Wang Hongrong Gao Hong Li Yiren Zhang Bowen Huang Junhong Zhao Yan Zhu Wang Zhang Yuan Yongming Zhang

High electronic conductivity of the support material and uniform distribution of the catalyst nanoparticles (NPs) are extremely desirable for electrocatalysts. In this paper, we present our recent progress on electrocatalysts for fuel cells with simultaneously improved conductivity of the supporting carbon nanofibers (CNFs) and distribution of platinum (Pt) NPs through facile incorporation of g...

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