Role of oxygen functional groups in graphene oxide for reversible room-temperature NO2 sensing

Choi, You Rim; Yoon, Yoosik; Choi, Kyoung Soon; Kang, Jong Hun; Shim, Young Seok; Kim, Yeon Hoo; Chang, Hye Jung; Lee, Jong Heun; Park, Chong Rae; Kim, Soo Young; Jang, Ho Won

doi:10.1016/j.carbon.2015.04.082

Cited by 199 publications

(125 citation statements)

References 48 publications

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“…Some of the studies compare the influence of different functional groups presented in graphene on the sensor properties . Depending on the preparation and reduction procedures, the GO samples may have a different set of functional groups, and, hence, the different sensor performance and its ability to be recovered . Initial GO shows a good sensor performance at high temperatures (∼175 °C) .…”

Section: Introductionmentioning

confidence: 99%

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In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Sysoev

Окотруб

Гусельников

et al. 2017

Physica Status Solidi (b)

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Graphene derivatives are promising sensor materials due to their high surface area available for molecule adsorption and conductivity changes under the adsorbate impact. The selectivity of such materials can be tuned through the attaching of certain functional groups preferably interacting with the defined gases. In the present work, we compare the reactivity of graphene oxide, oxyfluorinated graphene, and fluorinated graphene toward gaseous NO x molecules. The interaction of the molecules with the graphenebased films was monitored by in situ X-ray photoelectron and near-edge X-ray absorption fine structure spectroscopy measurements. The spectra before and after exposure of the films to a gaseous NO x mixture detected equal concentrations of adsorbed NO 2 and NO species on graphene oxide, the preferable interaction of oxyfluorinated graphene with NO 2 and the absence of the adsorbed molecules on the fluorinated graphene surface. These results are useful for the development of selective graphene-based gas sensors.

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Section: Introductionmentioning

confidence: 99%

“…In that work, dissociation of the adsorbed molecules and the formation of covalent bonds with oxygen were discovered. However, Choi and coauthors in their theoretical and experimental study have shown that hydroxyl groups provide a good recovery ability of the GO sensor due to COH and COH vibrations.…”

Section: Introductionmentioning

confidence: 99%

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Sysoev

Окотруб

Гусельников

et al. 2017

Physica Status Solidi (b)

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“…In terms of the sensing mechanism of the Ru oxide NSs toward NO 2 , the electrical resistivity of 2D sensing layers can be modulated by surface adsorption of charged molecules and charge transfer . For example, charged chemical molecules can attract electrons or holes from the 2D sensing layers by adsorption on the surface, which results in either increased or decreased resistivity.…”

Section: Resultsmentioning

confidence: 99%

Optically Sintered 2D RuO₂ Nanosheets: Temperature‐Controlled NO₂ Reaction

Choi

Jang

Park

et al. 2017

Adv Funct Materials

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examples include transition metal dichalcogenides (MoS 2 , MoSe 2 , WS 2 , WSe 2 , etc.), [6] metal oxide (Ti oxides, Mn oxides, Ru oxides, etc.), [7][8][9] and layered double hydroxides. [9] In particular, 2D metal oxides NSs such as Ti oxides, [10,11] Mn oxide, [12,13] and Ru oxides [14] have been intensively studied for applications in dielectric nanodevices and electrochemical energy storage by facilitating metallic and semiconducting properties. One of the most promising metal oxide NSs is monolayer Ru oxide exhibiting a highly conductive property. In-depth studies have been performed to establish a synthesis method and investigate the material properties of Ru oxide NSs. Particularly, considerable progress has been made using Ru oxide NSs as an effective catalyst for electrochemical supercapacitors, oxygen reduction electrocatalysts, and photocatalysts. [15][16][17][18] Very interesting features of metal oxide NSs triggered extensive research; however, the applications of the layered metal oxides are mainly in energy conversion and storage systems. For this reason, exploration and discovery of new applications are imperative to expand the versatility of metal oxide NSs in many research fields.Recently, the detection of chemical species using wearable sensors has gained much interest due to the need of real-time and on-site monitoring of environmental and physical conditions. [19][20][21] Nanostructured metal oxides using 0D nanoparticles and 1D nanofibers have been widely studied for highly sensitive chemical sensors. [22][23][24][25] However, the inherently brittle property of metal oxides limits further application as sensing layers in wearable platform. As an emerging sensing structure, 2D-layered NSs are the most suitable candidate for wearable chemical sensors due to their mechanical flexibility as well as large surface reaction sites. Thus far, atomically thin 2D graphene and transition metal dichalcogenides (TMD) layers have been mainly investigated for chemical sensors. [26][27][28][29][30][31][32] Late et al. evaluated chemical sensing characteristics using a thin-layered MoS 2 transistor, which revealed high NO 2 sensitivity with five-layer MoS 2 . [33] In addition, the 2D hybrid structure of MoS 2 /graphene layers was proposed by Cho et al. [35] and Long et al. [34] for the detection of NO 2 molecules. In particular, Cho et al. demonstrated flexible NO 2 sensors by integration of the 2D hybrid MoS 2 /graphene layers on a yellow polyimide film. [35] Although numerous efforts have been made to investigate the chemical sensing characteristics of graphene and TMD layers, the chemical sensing property of atomically 2D Ru oxide nanosheets (NSs) with optically punched nanoholes are synthesized and integrated on a flexible heating substrate, i.e., silver nanowire (Ag NW)-embedded colorless polyimide (cPI) film, for application in wearable chemical sensors. Multiple discrete pores on the sub-5-nm scale are formed on the basal planes of Ru oxide NSs by irradiation of intense pulsed light. The chemical sens...

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“…The sensing functions of graphene, metal dichalcogenides, phosphorene, and MXene are based on a charge transfer process, which doesn't requires the participation of adsorbed oxygen species (O 2 − , O − , O 2− ), yet the role of oxygen functional groups should not be neglected . The charge transfer mechanism originates from physisorption of gas molecules on the materials …”

Section: Configuration and Mechanism Of Gas Sensorsmentioning

confidence: 99%

“…In contrast to graphene, reduced graphene oxide (rGO) is regarded as a p‐type semiconductor due to the presence of some surface oxygen groups such as epoxy, hydroxyl and carbonyl. These oxygen functional groups have been suggested to enhance the adsorption of molecules on graphene . Furthermore, these groups also make rGO a versatile platform, which can be used for further functionalization by metal oxide nanoparticles, for example .…”

Section: Gas Sensor Using 2d Nanostructuresmentioning

confidence: 99%

Two‐Dimensional Nanostructured Materials for Gas Sensing

Liu

Pinna

et al. 2017

Adv Funct Materials

695

356

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Two-dimensional (2D) nanostructures are highly attractive for fabricating nanodevices due to their high surface-to-volume ratio and good compatibility with device design. In recent years 2D nanostructures of various materials including metal oxides, graphene, metal dichalcogenides, phosphorene, BN and MXenes, have demonstrated significant potential for gas sensors. This review aims to provide the most recent advancements in utilization of various 2D nanomaterials for gas sensing. The common methods for the preparation of 2D nanostructures are briefly summarized first. The focus is then placed on the sensing performances provided by devices integrating 2D nanostructures. Strategies for optimizing the sensing features are also discussed. By combining both the experimental results and the theoretical studies available, structure-properties correlations are discussed. The conclusion gives some perspectives on the open challenges and future prospects for engineering advanced 2D nanostructures for high-performance gas sensors devices.

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Role of oxygen functional groups in graphene oxide for reversible room-temperature NO2 sensing

Cited by 199 publications

References 48 publications

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Optically Sintered 2D RuO₂ Nanosheets: Temperature‐Controlled NO₂ Reaction

Two‐Dimensional Nanostructured Materials for Gas Sensing

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Role of oxygen functional groups in graphene oxide for reversible room-temperature NO2 sensing

Cited by 199 publications

References 48 publications

In situ XPS Observation of Selective NOx Adsorption on the Oxygenated Graphene Films

In situ XPS Observation of Selective NOx Adsorption on the Oxygenated Graphene Films

Optically Sintered 2D RuO2 Nanosheets: Temperature‐Controlled NO2 Reaction

Two‐Dimensional Nanostructured Materials for Gas Sensing

Contact Info

Product

Resources

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In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

In situ XPS Observation of Selective NO_x Adsorption on the Oxygenated Graphene Films

Optically Sintered 2D RuO₂ Nanosheets: Temperature‐Controlled NO₂ Reaction