Reduced Graphene Oxide Conjugated Cu2O Nanowire Mesocrystals for High-Performance NO2 Gas Sensor

2012 ◽  
Vol 134 (10) ◽  
pp. 4905-4917 ◽  
Author(s):  
Suzi Deng ◽  
Verawati Tjoa ◽  
Hai Ming Fan ◽  
Hui Ru Tan ◽  
Dean C. Sayle ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
High Performance ◽  
No2 Gas Sensor ◽  
Reduced Graphene

Synthesis of new functionalized reduced graphene oxide quantum dot composite for high-performance NO2 gas sensor

2021 ◽  
Author(s):  
Masoud Khaleghi Abbasabadi ◽  
Hamid Reza Esmaili Zand ◽  
Saeed Khodabakhshi ◽  
Pooya Gholami ◽  
Alimorad Rashidi
Keyword(s):  
Graphene Oxide ◽  
Quantum Dot ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
High Performance ◽  
No2 Gas Sensor ◽  
Reduced Graphene

scholarly journals Supramolecularly assembled isonicotinamide/reduced graphene oxide nanocomposite for room-temperature NO2 gas sensor

2021 ◽  
pp. 102066
Author(s):  
Ahmad Umar ◽  
Ahmed A. Ibrahim ◽  
Hassan Algadi ◽  
Hasan Albargi ◽  
Mabkhoot A. Alsairi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
Room Temperature ◽  
No2 Gas Sensor ◽  
Reduced Graphene

High-performance chemiresistor-type NH3 gas sensor based on three-dimensional reduced graphene oxide/polyaniline hybrid

2020 ◽  
Vol 31 (41) ◽  
pp. 415501 ◽  
Author(s):  
Somayeh Tohidi ◽  
Mojtaba Parhizkar ◽  
Hassan Bidadi ◽  
Rahim Mohamad-Rezaei
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
High Performance ◽  
Three Dimensional ◽  
Reduced Graphene

scholarly journals High Performance Acetylene Sensor with Heterostructure Based on WO3 Nanolamellae/Reduced Graphene Oxide (rGO) Nanosheets Operating at Low Temperature

Nanomaterials ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 909 ◽  
Author(s):  
Zikai Jiang ◽  
Weigen Chen ◽  
Lingfeng Jin ◽  
Fang Cui ◽  
Zihao Song ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
High Performance ◽  
Gas Sensing ◽  
Hybrid Nanocomposites ◽  
Transformer Oil ◽  
X Ray ◽  
Reduced Graphene ◽  
Sensing Performance

The development of functionalized metal oxide/reduced graphene oxide (rGO) hybrid nanocomposites concerning power equipment failure diagnosis is one of the most recent topics. In this work, WO3 nanolamellae/reduced graphene oxide (rGO) nanocomposites with different contents of GO (0.5 wt %, 1 wt %, 2 wt %, 4 wt %) were synthesized via controlled hydrothermal method. X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), thermogravimetric analyses-derivative thermogravimetric analysis-differential scanning calorimetry (TG-DTG-DSC), BET, and photoluminescence (PL) spectroscopy were utilized to investigate morphological characterizations of prepared gas sensing materials and indicated that high quality WO3 nanolamellae were widely distributed among graphene sheets. Experimental ceramic planar gas sensors composing of interdigitated alumina substrates, Au electrodes, and RuO2 heating layer were coated with WO3 nanolamellae/reduced graphene oxide (rGO) films by spin-coating technique and then tested for gas sensing towards multi-concentrations of acetylene (C2H2) gases in a carrier gas with operating temperature ranging from 50 °C to 400 °C. Among four contents of prepared samples, sensing materials with 1 wt % GO nanocomposite exhibited the best C2H2 sensing performance with lower optimal working temperature (150 °C), higher sensor response (15.0 toward 50 ppm), faster response-recovery time (52 s and 27 s), lower detection limitation (1.3 ppm), long-term stability, and excellent repeatability. The gas sensing mechanism for enhanced sensing performance of nanocomposite is possibly attributed to the formation of p-n heterojunction and the active interaction between WO3 nanolamellae and rGO sheets. Besides, the introduction of rGO nanosheets leads to the impurity of synthesized materials, which creates more defects and promotes larger specific area for gas adsorption, outstanding conductivity, and faster carrier transport. The superior gas sensing properties of WO3/rGO based gas sensor may contribute to the development of a high-performance ppm-level gas sensor for the online monitoring of dissolved C2H2 gas in large-scale transformer oil.

Room-temperature high-performance acetone gas sensor based on hydrothermal synthesized SnO2-reduced graphene oxide hybrid composite

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 3016-3022 ◽  
Author(s):  
Dongzhi Zhang ◽  
Aiming Liu ◽  
Hongyan Chang ◽  
Bokai Xia
Keyword(s):  
Graphene Oxide ◽  
Composite Film ◽  
Reduced Graphene Oxide ◽  
Gas Sensor ◽  
Hybrid Composite ◽  
High Performance ◽  
Room Temperature ◽  
Tin Dioxide ◽  
Reduced Graphene

In this paper, we demonstrated a room-temperature acetone gas sensor based on a tin dioxide (SnO2)-reduced graphene oxide (RGO) hybrid composite film.

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