Effects of hot liquid-water treatment on local proton conductivity at surfaces of sulfonated poly(arylene ketone) block copolymer membrane for fuel cells studied by current-sensing atomic force microscopy

2014 ◽  
Vol 143 ◽  
pp. 383-389 ◽  
Author(s):  
Masanori Hara ◽  
Masaya Hara ◽  
Kenji Miyatake ◽  
Junji Inukai ◽  
Masahiro Watanabe
Keyword(s):  
Atomic Force Microscopy ◽  
Fuel Cells ◽  
Water Treatment ◽  
Block Copolymer ◽  
Proton Conductivity ◽  
Liquid Water ◽  
Current Sensing ◽  
Force Microscopy ◽  
Atomic Force ◽  
Sulfonated Poly

Conducting Polymer nanoComposites (CPC): Nanocharacterisation of layer by layer sprayed PMMA-CNT vapour sensors by Atomic force Microscopy in current Sensing Mode (CS-AFM)

2008 ◽  
Vol 1143 ◽  
Author(s):  
Bijandra Kumar ◽  
Mickaël Castro ◽  
Jianbo Lu ◽  
Jean-François Feller
Keyword(s):  
Atomic Force Microscopy ◽  
Spray Deposition ◽  
Dynamic Mode ◽  
Layer By Layer ◽  
Initial State ◽  
Contact Mode ◽  
Current Sensing ◽  
Multi Wall Carbon Nanotubes ◽  
Force Microscopy ◽  
Atomic Force

ABSTRACTOrganic vapour sensors based on poly (methylmethacrylate)-multi-wall carbon nanotubes (PMMA-CNT) conductive polymer nanocomposite (CPC) were developed via layer by layer technique by spray deposition. CPC Sensors were exposed to three different classes of solvents (chloroform, methanol and water) and their chemo-electrical properties were followed as a function of CNTcontent in dynamic mode. Detection time was found to be shorter than that necessary for full recovery of initial state. CNT real three dimensional network has been visualized by Atomic force microscopy in a field assisted intermittent contact mode. More interestingly real conductive network system and electrical ability of CPC have been explored by current-sensing atomic force microscopy (CS-AFM). Realistic effect of voltage on electrical conductivity has been found linear.

Direct Imaging of Interfacial Fluctuations in Confined Block Copolymer with in Situ Slow-Scan-Disabled Atomic Force Microscopy

ACS Nano ◽  
2019 ◽  
Vol 13 (10) ◽  
pp. 11741-11752 ◽  
Author(s):  
Jonathan G. Raybin ◽  
Julia G. Murphy ◽  
Moshe Dolejsi ◽  
S. J. Sibener
Keyword(s):  
Atomic Force Microscopy ◽  
Block Copolymer ◽  
Direct Imaging ◽  
Force Microscopy ◽  
Atomic Force
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