Highly Uniform and Low Hysteresis Piezoresistive Pressure Sensors Based on Chemical Grafting of Polypyrrole on Elastomer Template with Uniform Pore Size

Small ◽  
2019 ◽  
pp. 1901744 ◽  
Author(s):  
Jinwon Oh ◽  
Jin‐Oh Kim ◽  
Yunjoo Kim ◽  
Han Byul Choi ◽  
Jun Chang Yang ◽  
...  
Keyword(s):  
Pore Size ◽  
Pressure Sensors ◽  
Chemical Grafting ◽  
Piezoresistive Pressure Sensors ◽  
Highly Uniform ◽  
Uniform Pore Size

Ultrasensitive, flexible, and low-cost nanoporous piezoresistive composites for tactile pressure sensing

Nanoscale ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 2779-2786 ◽  
Author(s):  
Jing Li ◽  
Santiago Orrego ◽  
Junjie Pan ◽  
Peisheng He ◽  
Sung Hoon Kang
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Low Cost ◽  
Pressure Sensors ◽  
Nanoporous Carbon ◽  
Pressure Sensing ◽  
Etching Method ◽  
Piezoresistive Pressure Sensors

We report a facile sacrificial casting–etching method to synthesize nanoporous carbon nanotube/polymer composites for ultra-sensitive and low-cost piezoresistive pressure sensors.

Optimized technology for the fabrication of piezoresistive pressure sensors

2000 ◽  
Vol 10 (2) ◽  
pp. 204-208 ◽  
Author(s):  
A Merlos ◽  
J Santander ◽  
M D Alvarez ◽  
F Campabadal
Keyword(s):  
Pressure Sensors ◽  
Piezoresistive Pressure Sensors

Dehydrogenation of Propane to Propene over Mesoporous ZrO2-Supported VCrO Catalysts

2014 ◽  
Vol 1008-1009 ◽  
pp. 290-294
Author(s):  
Bao Agula ◽  
Si Qin Dalai ◽  
Yue Chao Wu
Keyword(s):  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Mesoporous Structure ◽  
Molar Ratio ◽  
Impregnation Method ◽  
Size Distributions ◽  
Tem Analysis ◽  
Surfactant Assisted ◽  
Uniform Pore Size

Mesoporous ZrO2with narrow mesopore size distributions has been prepared by the surfactant-assisted method of nanoparticle assembly. A series of VCrO/ZrO2catalysts with different V/Cr molar ratio (0.3, 0.6, 1.0, 1.3 and 1.6) were prepared by the wetness impregnation method and characterized by XRD, N2adsorption and TEM techniques. N2adsorption and TEM analysis revealed that the surfactant-assisted method prepared VCrO/ZrO2catalysts have wormhole-like mesoporous structure with uniform pore size distribution. VCrO/ZrO2catalysts have been applied for direct dehydrogenation of propane to propene. The optimistic catalyst was V/Cr-0.6 with highest yield of 41.7% the corresponding conversion of propane was 44.1% and selectivity to propene was 94.5% at 550 °C.

scholarly journals Wearable Pressure Sensors Based on Carbonized Graphene Coated Waste Paper Aerogel

2021 ◽  
Author(s):  
Ang Li ◽  
Ce Cui ◽  
Weijie Wang ◽  
Yue Zhang ◽  
Jianyu Zhai ◽  
...  
Keyword(s):  
3D Structure ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Waste Paper ◽  
Low Density ◽  
Detection Range ◽  
Simple Strategy ◽  
Simple Filtration ◽  
Piezoresistive Pressure Sensors ◽  
Main Component

Abstract Graphene is complexed with cellulose fibers to construct 3D aerogels, which is generally considered to be an environmentally friendly and simple strategy to achieve wide sensing, high sensitivity and low detection of wearable piezoresistive pressure sensors. Here, graphene is incorporated into waste paper fibers with cellulose as the main component to prepare graphene coated waste paper aerogel (GWA) using a simple “filtration-oven drying” method under atmospheric pressure. The GWA was further annealed to obtain the carbonized graphene coated waste paper aerogel (C-GWA) to achieve low density and excellent resilience. The result shows that the C-GWA has a rough outer surface due to the 3D structure formed by interpenetrated fibers and the carbon skeleton with wrinkles. The sensor based on GCA shows low density (25mg/cm3), a wide detection range of 0-132 kPa, an ultra-low detection limit of 2.5 Pa (a green bean, ≈ 53.4 mg), and a high sensitivity of 31.6 kPa− 1. In addition, the sensor based on C-GWA with the excellent performance can be used to detect human motions including the pulse of the human body, cheek blowing and bending of human joints. The result indicates that the sensor based on C-GWA shows great potential for wearable electronic products.

High Sensitivity, Wearable, Piezoresistive Pressure Sensors Based on Irregular Microhump Structures and Its Applications in Body Motion Sensing

Small ◽  
2016 ◽  
Vol 12 (28) ◽  
pp. 3827-3836 ◽  
Author(s):  
Zongrong Wang ◽  
Shan Wang ◽  
Jifang Zeng ◽  
Xiaochen Ren ◽  
Adrian J. Y. Chee ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
High Sensitivity ◽  
Body Motion ◽  
Motion Sensing ◽  
Piezoresistive Pressure Sensors
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