scholarly journals Potential and performance of a polydopamine-coated multiwalled carbon nanotube/polysulfone nanocomposite membrane for ultrafiltration application

2016 ◽  
Vol 34 ◽  
pp. 364-373 ◽  
Author(s):  
Merry Sianipar ◽  
Seung Hyun Kim ◽  
Choongsik Min ◽  
Leonard D. Tijing ◽  
Ho Kyong Shon
Keyword(s):  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Nanocomposite Membrane ◽  
Multiwalled Carbon ◽  
And Performance

Platinum-Ruthenium-Multiwalled Carbon Nanotube-Nafion Nanocomposite for Methanol Electrooxidation

2008 ◽  
Vol 47-50 ◽  
pp. 991-994 ◽  
Author(s):  
Yu Chen Tsai ◽  
Yu Huei Hong ◽  
Ping Chieh Hsu
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotube ◽  
Modified Electrode ◽  
Methanol Electrooxidation ◽  
Multiwalled Carbon Nanotube ◽  
Multiwalled Carbon ◽  
Ru Nanoparticles ◽  
Oxidation Of Methanol ◽  
Transmission Electron ◽  
And Performance

This work presented the electrochemical reduction of platinum (Pt) and ruthenium (Ru) nanoparticles within multiwalled carbon nanotube-Nafion (MWCNT-Nafion) composite for electrochemical oxidation of methanol. The structure of the resulting Pt-Ru-MWCNT-Nafion nanocomposite was characterized by scanning electron microscopy, transmission electron microscopy, and energy dispersive X-ray spectroscopy. Electrochemical properties of Pt-Ru-MWCNT-Nafion nanocomposite were investigated by cyclic voltammetry in a 2 M CH3OH + 1 M H2SO4 aqueous solutions. The Pt-Ru-MWCNT-Nafion nanocomposite modified electrode had high electrocatalytic activity and performance toward the methanol electrooxidation as compared with Pt-MWCNT-Nafion nanocomposite modified electrode.

scholarly journals Investigation on Nanocomposite Membrane of Multiwalled Carbon Nanotube Reinforced Polycarbonate Blend for Gas Separation

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ayesha Kausar
Keyword(s):  
Carbon Nanotube ◽  
Young’S Modulus ◽  
Gas Separation ◽  
Vinylidene Fluoride ◽  
Young's Modulus ◽  
Multiwalled Carbon Nanotube ◽  
Nanocomposite Membrane ◽  
Polymeric Membrane ◽  
Multiwalled Carbon ◽  
Phase Inversion Technique

Carbon nanotube has been explored as a nanofiller in high performance polymeric membrane for gas separation. In this regard, nanocomposite membrane of polycarbonate (PC), poly(vinylidene fluoride-co-hexafluoropropylene) (PVFHFP), and multiwalled carbon nanotube (MWCNT) was fabricated via phase inversion technique. Poly(ethylene glycol) (PEG) was employed for the compatibilization of the blend system. Two series of PC/PVFHFP/PEG were developed using purified P-MWCNT and acid functional A-MWCNT nanofiller. Scanning and transmission electron micrographs have shown fine nanotube dispersion and wetting by matrix, compared with the purified system. Tensile strength and Young’s modulus of PC/PVFHFP/PEG/MWCNT-A 1–5 were found to be in the range of 63.6–72.5 MPa and 110.6–122.1 MPa, respectively. The nanocomposite revealed 51% increase in Young’s modulus and 28% increase in tensile stress relative to the pristine blend. The A-MWCNT was also effective in enhancing the permselectivity αCO2/N2 (31.2–39.9) of nanocomposite membrane relative to the blend membrane (21.6). The permeability PCO2 of blend was 125.6 barrer; however, the functional series had enhanced PCO2 values ranging from 142.8 to 186.6 barrer. Moreover, A-MWCNT loading improved the gas diffusivity of PC/PVFHFP/PEG/MWCNT-A 1–5; however, filler content did not significantly influence the CO2 and N2 solubility.

Sign in / Sign up

Export Citation Format

Share Document