Recent Advances in Gas and Humidity Sensors Based on 3D Structured and Porous Graphene and Its Derivatives

2020 ◽  
Vol 2 (11) ◽  
pp. 1381-1411 ◽  
Author(s):  
Haojun Ding ◽  
Yaoming Wei ◽  
Zixuan Wu ◽  
Kai Tao ◽  
Minghui Ding ◽  
...  
Keyword(s):  
Humidity Sensors ◽  
Porous Graphene ◽  
Recent Advances

scholarly journals Recent Advances in Graphene-Based Humidity Sensors

Nanomaterials ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 422 ◽  
Author(s):  
Chao Lv ◽  
Cun Hu ◽  
Junhong Luo ◽  
Shuai Liu ◽  
Yan Qiao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
High Performance ◽  
Graphene Quantum Dots ◽  
Pristine Graphene ◽  
High Electron ◽  
Humidity Sensors ◽  
Industrial Processing ◽  
Surface Areas ◽  
Recent Advances ◽  
Metal Metal

Humidity sensors are a common, but important type of sensors in our daily life and industrial processing. Graphene and graphene-based materials have shown great potential for detecting humidity due to their ultrahigh specific surface areas, extremely high electron mobility at room temperature, and low electrical noise due to the quality of its crystal lattice and its very high electrical conductivity. However, there are still no specific reviews on the progresses of graphene-based humidity sensors. This review focuses on the recent advances in graphene-based humidity sensors, starting from an introduction on the preparation and properties of graphene materials and the sensing mechanisms of seven types of commonly studied graphene-based humidity sensors, and mainly summarizes the recent advances in the preparation and performance of humidity sensors based on pristine graphene, graphene oxide, reduced graphene oxide, graphene quantum dots, and a wide variety of graphene based composite materials, including chemical modification, polymer, metal, metal oxide, and other 2D materials. The remaining challenges along with future trends in high-performance graphene-based humidity sensors are also discussed.

Recent advances in porous graphene materials for supercapacitor applications

RSC Advances ◽  
2014 ◽  
Vol 4 (86) ◽  
pp. 45862-45884 ◽  
Author(s):  
Xiong Zhang ◽  
Haitao Zhang ◽  
Chen Li ◽  
Kai Wang ◽  
Xianzhong Sun ◽  
...  
Keyword(s):  
Porous Graphene ◽  
Recent Advances ◽  
Supercapacitor Applications

scholarly journals Recent Advances of Porous Graphene: Synthesis, Functionalization, and Electrochemical Applications

Small ◽  
2019 ◽  
Vol 15 (48) ◽  
pp. 1903780 ◽  
Author(s):  
Yuanyuan Zhang ◽  
Qijin Wan ◽  
Nianjun Yang
Keyword(s):  
Porous Graphene ◽  
Graphene Synthesis ◽  
Recent Advances ◽  
Electrochemical Applications

ChemInform Abstract: Recent Advances in Porous Graphene Materials for Supercapacitor Applications

ChemInform ◽  
2014 ◽  
Vol 46 (2) ◽  
pp. no-no
Author(s):  
Xiong Zhang ◽  
Haitao Zhang ◽  
Chen Li ◽  
Kai Wang ◽  
Xianzhong Sun ◽  
...  
Keyword(s):  
Porous Graphene ◽  
Recent Advances ◽  
Supercapacitor Applications

Recent advances in humidity sensor for human body related humidity detections

2021 ◽  
Author(s):  
Zaihua Duan ◽  
Yadong Jiang ◽  
Huiling Tai
Keyword(s):  
Human Body ◽  
Smart Home ◽  
Humidity Sensor ◽  
Electronic Systems ◽  
Ambient Conditions ◽  
Humidity Sensors ◽  
Recent Advances ◽  
Long Time ◽  
Wearable Electronic

For a long time, humidity sensors have been mainly used in detecting humidity of ambient conditions, such as, industry, agriculture, and smart home. With the development of wearable electronic systems,...

Recent Advances in High Dispersion Spectroscopy of Globular Cluster Stars

1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
High Dispersion ◽  
Photographic Material ◽  
Recent Advances ◽  
Metal Abundances ◽  
Ccd Detectors ◽  
Major Progress

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.

Chelation-assisted transition metal-catalysed C–H chalcogenylations

2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Advances ◽  
Site Selectivity ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

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