A Reduced GO-Graphene Hybrid Gas Sensor for Ultra-Low Concentration Ammonia Detection

A hybrid structure gas sensor of reduced graphene oxide (RGO) decorated graphene (RGO-Gr) is designed for ultra-low concentration ammonia detection. The resistance value of the RGO-Gr hybrid is the indicator of the ammonia concentration and controlled by effective charge transport from RGO to graphene after ammonia molecule adsorption. In this hybrid material, RGO is the adsorbing layer to catch ammonia molecules and graphene is the conductive layer to effectively enhance charge/electron transport. Compared to a RGO gas sensor, the signal-to-noise ratio (SNR) of the RGO-Gr is increased from 22 to 1008. Meanwhile, the response of the RGO-Gr gas sensor is better than that of either a pristine graphene or RGO gas sensor. It is found that the RGO reduction time is related to the content of functional groups that directly reflect on the gas sensing properties of the sensor. The RGO-Gr gas sensor with 10 min reduction time has the best gas sensing properties in this type of sensor. The highest sensitivity is 2.88% towards 0.5 ppm, and the ammonia gas detection limit is calculated to be 36 ppb.

[1]  Junhong Chen,et al.  Controllable synthesis of silver nanoparticle-decorated reduced graphene oxide hybrids for ammonia detection. , 2013, The Analyst.

[2]  Hao Zhang,et al.  SnO2 nanoparticles-reduced graphene oxide nanocomposites for NO2 sensing at low operating temperature , 2014 .

[3]  Man Siu Tse,et al.  Semiconductor gas sensor based on Pd-doped SnO2 nanorod thin films , 2008 .

[4]  S. G. Chatterjee,et al.  Graphene–metal oxide nanohybrids for toxic gas sensor: A review , 2015 .

[5]  L. Nagahara,et al.  A Breath Ammonia Sensor Based on Conducting Polymer Nanojunctions , 2008, IEEE Sensors Journal.

[6]  Shinji Tamura,et al.  Solid Electrolyte Type NH3 Gas Sensor Applicable in a Humid Atmosphere , 2010 .

[7]  Ying Wang,et al.  Ultrafast and sensitive room temperature NH3 gas sensors based on chemically reduced graphene oxide , 2014, Nanotechnology.

[8]  Zhongqing Wei,et al.  Reduced graphene oxide molecular sensors. , 2008, Nano letters.

[9]  Xianghong Liu,et al.  Two‐Dimensional Nanostructured Materials for Gas Sensing , 2017 .

[10]  P. Bhattacharyya,et al.  Recent developments on graphene and graphene oxide based solid state gas sensors , 2012 .

[11]  Bin Liu,et al.  Low-Temperature H2S Detection with Hierarchical Cr-Doped WO3 Microspheres. , 2016, ACS applied materials & interfaces.

[12]  Sotiris E. Pratsinis,et al.  Selective sensing of NH3 by Si-doped α-MoO3 for breath analysis , 2016 .

[13]  K. Novoselov,et al.  Detection of individual gas molecules adsorbed on graphene. , 2006, Nature materials.

[14]  P. Su,et al.  NH3 gas sensor based on Pd/SnO2/RGO ternary composite operated at room-temperature , 2016 .

[15]  U. V. Patil,et al.  Room temperature ammonia sensor based on copper nanoparticle intercalated polyaniline nanocomposite thin films , 2015 .

[16]  Dianqing Li,et al.  Ultrasensitive room temperature NH3 sensor based on a graphene-polyaniline hybrid loaded on PET thin film. , 2015, Chemical communications.

[17]  Hua Bai,et al.  Preparation of Gold Nanoparticle/Graphene Composites with Controlled Weight Contents and Their Application in Biosensors , 2010 .

[18]  Guo-Li Shen,et al.  In situ synthesis of palladium nanoparticle-graphene nanohybrids and their application in nonenzymatic glucose biosensors. , 2011, Biosensors & bioelectronics.

[19]  Harsharaj S. Jadhav,et al.  Yolk-shelled ZnCo2O4 microspheres: Surface properties and gas sensing application , 2018 .

[20]  Bian Wu,et al.  High-Performance Wireless Ammonia Gas Sensors Based on Reduced Graphene Oxide and Nano-Silver Ink Hybrid Material Loaded on a Patch Antenna , 2017, Sensors.

[21]  Wei-Guo Song,et al.  Characterization of partially reduced graphene oxide as room temperature sensor for H2. , 2011, Nanoscale.

[22]  Yadong Jiang,et al.  A novel sensing mechanism for resistive gas sensors based on layered reduced graphene oxide thin films at room temperature , 2014 .

[23]  Junhong Chen,et al.  Reduced graphene oxide for room-temperature gas sensors , 2009, Nanotechnology.

[24]  Andre K. Geim,et al.  Electric Field Effect in Atomically Thin Carbon Films , 2004, Science.

[25]  Osvaldo N. Oliveira,et al.  A review on chemiresistive room temperature gas sensors based on metal oxide nanostructures, graphene and 2D transition metal dichalcogenides , 2018, Microchimica Acta.

[26]  Karl Crowley,et al.  Point of care monitoring of hemodialysis patients with a breath ammonia measurement device based on printed polyaniline nanoparticle sensors. , 2013, Analytical chemistry.

[27]  Jiri Janata,et al.  Organic semiconductors in potentiometric gas sensors , 2008 .

[28]  Dianqing Li,et al.  Polyaniline@SnO2 heterojunction loading on flexible PET thin film for detection of NH3 at room temperature , 2016 .

[29]  Yadong Jiang,et al.  The Investigation of Reduced Graphene Oxide/P3HT Composite Films for Ammonia Detection , 2014 .

[30]  Xin Li,et al.  Graphene channel liquid container field effect transistor as ph sensor , 2014 .

[31]  Kangho Lee,et al.  Chemically Modulated Graphene Diodes , 2013, Nano letters.

[32]  S. Annapoorni,et al.  Flexible room temperature ammonia sensor based on polyaniline , 2017 .

[33]  Ahalapitiya H. Jayatissa,et al.  Gas sensing properties of graphene synthesized by chemical vapor deposition , 2011 .

[34]  Hsiao-Wen Zan,et al.  Highly sensitive ammonia sensor with organic vertical nanojunctions for noninvasive detection of hepatic injury. , 2013, Analytical chemistry.

[35]  Xin Li,et al.  Quantitative description of Ag nanoparticles-graphene hybrids with optimized morphology on sensing performance , 2018 .

[36]  Edward T. Samulski,et al.  Exfoliated Graphene Separated by Platinum Nanoparticles , 2008 .

[37]  Deji Akinwande,et al.  Enhanced sensitivity of graphene ammonia gas sensors using molecular doping , 2016 .

[38]  Xin Li,et al.  Morphology optimization of CVD graphene decorated with Ag nanoparticles as ammonia sensor , 2017 .

[39]  B. H. Weiller,et al.  Practical chemical sensors from chemically derived graphene. , 2009, ACS nano.

[40]  Hao Zhang,et al.  Enhancing NO2 gas sensing performances at room temperature based on reduced graphene oxide-ZnO nanoparticles hybrids , 2014 .

[41]  Samit K. Ray,et al.  Highly sensitive large-area multi-layered graphene-based flexible ammonia sensor , 2014 .

[42]  Shinya Hayami,et al.  Recent progress in applications of graphene oxide for gas sensing: A review. , 2015, Analytica chimica acta.

[43]  N Vijayan,et al.  Faster response of NO2 sensing in graphene–WO3 nanocomposites , 2012, Nanotechnology.

[44]  Nan Chen,et al.  Nanoparticle cluster gas sensor: Pt activated SnO2 nanoparticles for NH3 detection with ultrahigh sensitivity. , 2015, Nanoscale.

[45]  Yadong Jiang,et al.  Impact of further thermal reduction on few-layer reduced graphene oxide film and its n-p transition for gas sensing , 2016 .

[46]  B. Liu,et al.  Enhanced sensitivity of ammonia sensor using graphene/polyaniline nanocomposite , 2013 .

[47]  Shunichi Wakamatsu,et al.  Detection of ammonia in human breath using quartz crystal microbalance sensors with functionalized mesoporous SiO2 nanoparticle films , 2015 .

[48]  Xianghong Liu,et al.  Nanostructured Materials for Room‐Temperature Gas Sensors , 2016, Advanced materials.

[49]  Yu Wang,et al.  WO3 nanorods/graphene nanocomposites for high-efficiency visible-light-driven photocatalysis and NO2 gas sensing , 2012 .

[50]  Terence H Risby,et al.  Clinical utility of breath ammonia for evaluation of ammonia physiology in healthy and cirrhotic adults , 2015, Journal of breath research.

[51]  Terence H Risby,et al.  Fast and accurate exhaled breath ammonia measurement. , 2014, Journal of visualized experiments : JoVE.

[52]  J. P. Cresswell,et al.  An optical gas sensor based on polyaniline Langmuir-Blodgett films , 1997 .

[53]  M. Choe,et al.  A study of graphene films synthesized on nickel substrates: existence and origin of small-base-area peaks , 2011, Nanotechnology.

[54]  Ting Zhang,et al.  Stable Cu₂O nanocrystals grown on functionalized graphene sheets and room temperature H₂S gas sensing with ultrahigh sensitivity. , 2013, Nanoscale.