Electrochemical Reduction of Carbon Dioxide in an MFC–MEC System with a Layer-by-Layer Self-Assembly Carbon Nanotube/Cobalt Phthalocyanine Modified Electrode

2012 ◽  
Vol 46 (9) ◽  
pp. 5198-5204 ◽  
Author(s):  
Huazhang Zhao ◽  
Yan Zhang ◽  
Bin Zhao ◽  
Yingyue Chang ◽  
Zhenshan Li
Keyword(s):  
Carbon Dioxide ◽  
Carbon Nanotube ◽  
Electrochemical Reduction ◽  
Modified Electrode ◽  
Self Assembly ◽  
Cobalt Phthalocyanine ◽  
Layer By Layer

Preparation of Poly(diallydimethyl ammonium chloride) (PDDA)/Au Nanocomposite Film by In Situ Electrochemical Reduction and its Electrocatalytic Properties

2010 ◽  
Vol 123-125 ◽  
pp. 189-192
Author(s):  
Hong Wei Shi ◽  
Li Zhang ◽  
Cong Wang ◽  
Ke Ying Zhang
Keyword(s):  
Electrochemical Reduction ◽  
Ammonium Chloride ◽  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Composite Films ◽  
Nanocomposite Films ◽  
Layer By Layer ◽  
X Ray ◽  
Assembly Technique

Nanocomposite films containing Au nanoparticles were fabricated by alternating adsorption of poly(diallydimethyl ammonium chloride) (PDDA) and HAuCl4 using layer-by-layer self-assembly technique and subsequent in situ electrochemical reduction of the AuCl4- ions. The composition and properties of the composite films were characterized by ultraviolet-visible spectroscopy (UV-vis), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV).The UV-vis characteristic absorbances of PDDA and Au increase almost linearly with the number of bilayers, which suggests a progressive deposition with almost an equal amount of the PDDA and Au in each cycle. X-ray photoelectron spectroscopy further confirms the presence of the main components (such as PDDA and Au) of the nanocomposite films. Furthermore, the nanocomposite films also exhibit good electrocatalytic activity for the oxidation of ascorbic acid (AA), which may be used in electrochemical biosensors.

Fabrication of Stable Ultrathin Transparent Conductive Carbon Nanotube Micropatterns Using Layer-by-Layer Self-Assembly

2014 ◽  
Vol 23 (4) ◽  
pp. 320-325 ◽  
Author(s):  
Bing Yu ◽  
Xiaomian Liu ◽  
Hailin Cong ◽  
Zonghua Wang ◽  
Yichen Lian ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Self Assembly ◽  
Layer By Layer

Layer-by-Layer Electrostatic Self-Assembly of Polyelectrolyte Nanoshells on Individual Carbon Nanotube Templates

Langmuir ◽  
2004 ◽  
Vol 20 (4) ◽  
pp. 1442-1448 ◽  
Author(s):  
Alexander B. Artyukhin ◽  
Olgica Bakajin ◽  
Pieter Stroeve ◽  
Aleksandr Noy
Keyword(s):  
Carbon Nanotube ◽  
Self Assembly ◽  
Layer By Layer

Single-Walled Carbon Nanotube Micropatterns and Interconnections Fabricated With Layer-by-Layer Nano Self-Assembly and Microlithography on Flexible Substrates

2006 ◽  
Author(s):  
Wei Xue ◽  
Tianhong Cui
Keyword(s):  
Carbon Nanotube ◽  
Self Assembly ◽  
Low Cost ◽  
Flexible Substrates ◽  
Layer By Layer ◽  
Single Walled Carbon Nanotube ◽  
Plastic Substrates ◽  
Single Walled Carbon ◽  
Current Voltage ◽  
Lift Off

The fabrication and characterization of single-walled carbon nanotube (SWNT) multilayers, micropatterns and interconnections on plastic substrates are reported in this paper. The SWNT-based multilayers and devices are fabricated with a simple, fast, inexpensive, low-temperature, and highly efficient technique combining layer-by-layer (LbL) nano self-assembly, microlithography, and lift-off techniques. The SWNT multilayers are alternating layers of SWNTs and poly (dimethyldiallylammonium chloride) (PDDA). Lithography and lift-off techniques are used to pattern the SWNT multilayers. SWNT microstructures with linewidth of 5 μm are fabricated and characterized. The thickness of a (PDDA/SWNT) bi-layer is approximately 76 Å. Two-terminal SWNT thin film based interconnections are fabricated on flexible substrates. Current-voltage (I-V) characterization and four-point probe measurement show that the resistance of the interconnection is nonlinearly inversely proportional to the number of the assembled SWNT layers. The nano-assembled polymer/SWNT composite can be used in many applications due to its low cost, light weight, and long lifetime.

scholarly journals Study on the Highly Sensitive AChE Electrode Based on Multiwalled Carbon Nanotubes

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Shuping Zhang ◽  
Zhancheng Gu ◽  
Yongli Hu ◽  
Song Qu ◽  
Ying Liu
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Modified Electrode ◽  
Self Assembly ◽  
Phosphate Buffer Solution ◽  
High Sensitivity ◽  
Acetylcholine Esterase ◽  
Layer By Layer ◽  
Buffer Solution ◽  
Multiwalled Carbon

Using chitosan (CS) as carrier, the method named layer-by-layer (LBL) self-assembly modification to modify the glassy carbon electrode (GCE) with multiwalled carbon nanotubes (MWNTs) and acetylcholine esterase (AChE) was proposed to prepare the acetylcholine esterase electrode with high sensitivity and stability. The modified electrode was used to detect pesticide of aldicarb, and the enzyme inhibition rate of the electrode showed good linearity with pesticide concentrations in the range of 10−10 g·L−1to 10−3 g·L−1. The detection limit was 10−11 g·L−1. The modified electrode was also used to detect the actual sample, and the recovery rate range was from 97.72% to 107.15%, which could meet the rapid testing need of the aldicarb residue. After being stored in the phosphate buffer solution (PBS) in 4°C for 30 days, the modified electrode showed good stability with the response current that was 80% of the original current.

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