Adsorption behavior of NO2 molecules in ZnO-mono/multilayer graphene core.shell quantum dots for NO2 gas sensor

Kyu Seung Lee; Jaeho Shim; Joo Song Lee; Jaehyeon Lee; Hi Gyu Moon; Young Jae Park; Donghee Park; Dong Ick Son

Journal of Industrial and Engineering Chemistry, Vol.106, 279-286, February, 2022

DOI10.1016/j.jiec.2021.11.003 Export Citation

Adsorption behavior of NO2 molecules in ZnO-mono/multilayer graphene core.shell quantum dots for NO2 gas sensor

Kyu Seung Lee¹, Jaeho Shim¹, Joo Song Lee¹, Jaehyeon Lee¹, Hi Gyu Moon², Young Jae Park³, Donghee Park⁴, and Dong Ick Son^{1, 5, †}

¹Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeollabuk-do 55324, Republic of Korea
²National Center for Efficacy Evaluation for Respiratory Disease Product, Korea Institute of Toxicology, Jeonbuk 56212, Republic of Korea
³National Institute for Nanomaterials Technology, Pohang University of Science and Technology, Cheongam-Ro 77, 37673 Pohang, Republic of Korea
⁴Center for Opto-Electronic Materials and Devices, Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology, Hwarangro 14 Gil 5, Sungbuk Gu, Seoul 02792, Republic of Korea
⁵KIST School, Department of Nanomaterials and Nano Science, University of Science and Technology (UST), 217, Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea

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We demonstrated the sensing properties and adsorption mechanism of NO2 molecules of monolayer graphene and multilayer graphene encapsulated ZnO QDs for NO2 gas adsorption. The gas response value of ZnO-multilayer graphene (ZMLG) QDs was approximately 23 % and 7.2 and 25.5 times higher than that with ZnO-monolayer graphene (ZG) and ZnO QDs, respectively. The surface potential change of ZMLG QDs increased up to 14.25 times compared to ZnO QDs and 6.33 times increased compared to ZG QDs. We proposed an accurate adsorption mechanism for the improvement of the detection behavior that is occured by covering the graphene shells into ZnO QDs by the Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), and SKPM measurement. These results are expected to increase the accuracy of gas sensor characteristic analysis.

Keywords:ZnO QDs;Graphene;Core-shell QDs;Gas sensor;Surface potential

[References]

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Park S, An S, Ko H, Jin C, Lee C, ACS Appl. Mater. Interfaces, 4, 3650 (2012)
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[1] He JQ, Yin J, Liu D, Zhang LX, Cai FS, Bie LJ, Sens. Actuators B: Chem., 182, 170 (2013)

[2] Na CW, Park SY, Lee JH, Sens. Actuators B: Chem., 174, 495 (2012)

[3] Kumar R, Al-Dossary O, Kumar G, Umar A, Nano-Micro Letters, 7, 97 (2015)

[4] Bhati VS, Hojamberdiev M, Kumar M, Energy Reports, 6(4), 46 (2020)

[5] Vajhadin F, Mazloum-Ardakani M, Amini A, Med Devices Sens., 4 (2021)

[6] Park S, An S, Ko H, Jin C, Lee C, ACS Appl. Mater. Interfaces, 4, 3650 (2012)

[7] Chen Y, Li M, Yan W, Zhuang X, Ng ZK, Cheng X, ACS Omega, 6(2), 1216 (2021)

[8] Shouli B, Liangyuan C, Jingwei H, Dianqing L, Ruixian L, Aifan C, Liu CC, Sens. Actuators B: Chem., 159(1), 97 (2011)

[9] Bai S, Hu J, Li D, Luo R, Chen A, Liu CC, J. Mater. Chem., 21, 12288 (2011)

[10] Li D, Hu J, Fan F, Bai S, Luo R, Chen A, Liu CC, J. Alloys Compd., 539, 205 (2012)

[11] Ghosh R, Midya A, Santra S, Ray SK, Guha P, A.C.S. Appl, Mater. Interf., 5, 7599 (2013)

[12] Yuan W, Shi G, J. Mater. Chem. A, 1, 10078 (2013)

[13] Abideen ZU, Katoch A, Kim JH, Kwon YJ, Kim HW, Kim SS, Sens. Actuators B: Chem., 221, 1499 (2015)

[14] Liu S, Yu B, Zhang H, Fei T, Zhang T, Sens. Actuators B: Chem., 202, 272 (2014)

[15] Galstyan V, Comini E, Kholmanov I, Faglia G, Sberveglieri G, RSC Adv., 6, 34225 (2016)

[16] Liu W, Zhou X, Xu L, Zhu S, Yang S, Chen X, Dong B, Bai X, Lu G, Song H, Nanoscale, 11, 11496 (2019)

[17] Zhu Y, Zhang X, Li R, Li Q, Scientific Reports, 4, 4728 (2014)

[18] Bera S, Khan H, Biswas I, Jana S, Appl. Surface Sci., 383, 165 (2016)

[19] Son DI, Kwon BW, Park DH, Seo WS, Yi Y, Angadi B, Lee CL, Choi WK, Nat. Nanotech., 7, 465 (2012)

[20] Son DI, Kwon BW, Yang JD, Park DH, Seo WS, Lee H, Yi Y, Lee CL, Choi WK, Nano Res., 5(10), 739 (2012)

[21] Shim J, Kim JK, Lee KS, Lee CL, Ma M, Choi WK, Hwang JY, Yang HY, Angadi B, Park JH, Yu K, Son DI, Nano Energy, 25, 9 (2016)

[22] Cho PS, Kim KW, Lee JH, J. Electroceramics, 17, 975 (2006)

[23] Park YJ, Lee KS, Shim J, Lee JH, Kim Y, Son DI, J. Ind. Eng. Chem., 95, 333 (2021)

[24] Tang SB, Cao ZX, J. Chem. Phys., 134 (2011)

[25] Guo L, Hao YW, Li PL, Song JF, Yang RZ, Fu XY, Xie SY, Zhao J, Zhang YL, Scientific Reports, 8, 4918 (2018)