Eco-friendly water-based graphene/sodium silicate dispersion for electrically conductive screen-printing technique and theoretical studies

Carbon ◽  
2021 ◽  
Vol 178 ◽  
pp. 26-36
Author(s):  
Yu-Hsuan Chiao ◽  
Mani Sivakumar ◽  
Sudesh Yadav ◽  
Shiro Yoshikawa ◽  
Wei-Song Hung
2017 ◽  
Vol 9 (24) ◽  
pp. 3689-3695 ◽  
Author(s):  
C. Karuwan ◽  
A. Wisitsoraat ◽  
P. Chaisuwan ◽  
D. Nacapricha ◽  
A. Tuantranont

This work presents a new method for mass fabrication of a new microfluidic device with integrated graphene-based electrochemical electrodes by the screen printing technique for in-channel amperometric detection.


2018 ◽  
Vol 15 (1) ◽  
pp. 6122-6129 ◽  
Author(s):  
Meram S. Abdelrahman ◽  
Sahar Nassar ◽  
Hamada Mashaly ◽  
Safia Mahmoud ◽  
Dalia Maamoun

Micro-encapsulated pigments were formulated into biodegradable printing pastes and their properties were analyzed. The pigment was used as the core material and polylactic-based biodegradable thickener was used as the wall-former. Cotton/polyester blend fabric was printed with micro-encapsulated pigment using screen-printing technique without dispersing agents, penetrating agents, leveling agents or other auxiliaries. Micro-encapsulated pigment has been characterized in terms of average particle size and size distribution, morphological structure and elemental composition using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The variations in viscosity and paste stability were observed upon storing over 7 days at ambient temperature. For permanence, the micro-encapsulation process afforded better colorfastness properties against light, washing, rubbing, and perspiration.


2012 ◽  
Vol 49 (2) ◽  
pp. 51-56
Author(s):  
A. Ogurcovs ◽  
Vj. Gerbreders ◽  
E. Tamanis ◽  
S. Gerbreders ◽  
G. Liberts

Photoelectric Properties of Screen-Printed Al-Doped ZnO Films The potential of cheap semiconductor materials in the area of solar energy use is illustrated by the example of zinc oxide (pure and Al-doped in various concentrations). Under investigation was the electric conductivity and photoelectric properties of ZnO thin films. The samples were prepared using screen-printing technique. The results of measurements point to non-linear relationships between Al concentration, photosensitivity and electrical conductivity of thin ZnO films. Optimal Al concentration for practical use of ZnO in photovoltaic devices is found to be ~ 1%. The experimental methods, technologies and results described in the paper could be used for further investigations in this area.


Author(s):  
Siti Amaniah Mohd Chachuli ◽  
Mohd Nizar Hamidom ◽  
Md. Shuhazlly Mamat ◽  
Mehmet Ertugurul ◽  
Norhapishah Abdullah

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1055
Author(s):  
Lucía dos Santos-Gómez ◽  
Javier Zamudio-García ◽  
José M. Porras-Vázquez ◽  
Enrique R. Losilla ◽  
David Marrero-López

Lowering the operating temperature of solid oxide fuel cells (SOFCs) is crucial to make this technology commercially viable. In this context, the electrode efficiency at low temperatures could be greatly enhanced by microstructural design at the nanoscale. This work describes alternative microstructural approaches to improve the electrochemical efficiency of the BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY) cathode. Different electrodes architectures are prepared in a single step by a cost-effective and scalable spray-pyrolysis deposition method. The microstructure and electrochemical efficiency are compared with those fabricated from ceramic powders and screen-printing technique. A complete structural, morphological and electrochemical characterization of the electrodes is carried out. Reduced values of area specific resistance are achieved for the nanostructured cathodes, i.e., 0.067 Ω·cm2 at 600 °C, compared to 0.520 Ω·cm2 for the same cathode obtained by screen-printing. An anode supported cell with nanostructured BCFZY cathode generates a peak power density of 1 W·cm−2 at 600 °C.


2006 ◽  
Vol 155 (2) ◽  
pp. 375-380 ◽  
Author(s):  
Seung-Tae Lee ◽  
Shin-Wook Jeon ◽  
Byung-Joo Yoo ◽  
Seung-Don Choi ◽  
Hyeong-Jin Kim ◽  
...  

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