Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water

doi:10.1021/acsnano.7b05264

Title: Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water

Abstract

Understanding of structural, electrical, and gravimetric peculiarities of water vapor interaction with ion-intercalated MXenes led to design of a multimodal humidity sensor. Neutron scattering coupled to molecular dynamics and ab initio calculations showed that a small amount of hydration results in a significant increase in the spacing between MXene layers in the presence of K and Mg intercalants between the layers. Films of K- and Mg-intercalated MXenes exhibited relative humidity (RH) detection thresholds of ~0.8% RH and showed monotonic RH response in the 0–85% RH range. We found that MXene gravimetric response to water is 10 times faster than their electrical response, suggesting that H ₂O-induced swelling/contraction of channels between MXene sheets results in trapping of H ₂O molecules that act as charge-depleting dopants. Here, the results demonstrate the use of MXenes as humidity sensors and infer potential impact of water on structural and electrical performance of MXene-based devices.

Authors:

^[1];

^[2];

^[2]; Xie, Yu ^[2]; Tyagi, Madhusudan ^[3];

^[2];

^[1];

^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)

Publication Date:: 2017-10-11

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1468281

Alternate Identifier(s):: OSTI ID: 1487453

Grant/Contract Number:: [AC05-00OR22725; AC02-05CH11231]

Resource Type:: Accepted Manuscript

Journal Name:: ACS Nano

Additional Journal Information:: [ Journal Volume: 11; Journal Issue: 11]; Journal ID: ISSN 1936-0851

Publisher:: American Chemical Society (ACS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; humidity sensor; intercalation; MXene; neutron scattering; pillaring; quartz crystal microbalance

Citation Formats


                    Muckley, Eric S., Naguib, Michael, Wang, Hsiu -Wen, Vlcek, Lukas, Osti, Naresh C., Sacci, Robert L., Sang, Xiahan, Unocic, Raymond R., Xie, Yu, Tyagi, Madhusudan, Mamontov, Eugene, Page, Katharine L., Kent, Paul R. C., Nanda, Jagjit, and Ivanov, Ilia N. Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water.  United States: N. p., 2017. 
        Web.  doi:10.1021/acsnano.7b05264.

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                    Muckley, Eric S., Naguib, Michael, Wang, Hsiu -Wen, Vlcek, Lukas, Osti, Naresh C., Sacci, Robert L., Sang, Xiahan, Unocic, Raymond R., Xie, Yu, Tyagi, Madhusudan, Mamontov, Eugene, Page, Katharine L., Kent, Paul R. C., Nanda, Jagjit, & Ivanov, Ilia N. Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water.  United States.  doi:10.1021/acsnano.7b05264.

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                    Muckley, Eric S., Naguib, Michael, Wang, Hsiu -Wen, Vlcek, Lukas, Osti, Naresh C., Sacci, Robert L., Sang, Xiahan, Unocic, Raymond R., Xie, Yu, Tyagi, Madhusudan, Mamontov, Eugene, Page, Katharine L., Kent, Paul R. C., Nanda, Jagjit, and Ivanov, Ilia N. Wed .  
        "Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water".  United States.  doi:10.1021/acsnano.7b05264.  https://www.osti.gov/servlets/purl/1468281.

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@article{osti_1468281,

  title        = {Multimodality of Structural, Electrical, and Gravimetric Responses of Intercalated MXenes to Water},

  author       = {Muckley, Eric S. and Naguib, Michael and Wang, Hsiu -Wen and Vlcek, Lukas and Osti, Naresh C. and Sacci, Robert L. and Sang, Xiahan and Unocic, Raymond R. and Xie, Yu and Tyagi, Madhusudan and Mamontov, Eugene and Page, Katharine L. and Kent, Paul R. C. and Nanda, Jagjit and Ivanov, Ilia N.},

  abstractNote = {Understanding of structural, electrical, and gravimetric peculiarities of water vapor interaction with ion-intercalated MXenes led to design of a multimodal humidity sensor. Neutron scattering coupled to molecular dynamics and ab initio calculations showed that a small amount of hydration results in a significant increase in the spacing between MXene layers in the presence of K and Mg intercalants between the layers. Films of K- and Mg-intercalated MXenes exhibited relative humidity (RH) detection thresholds of ~0.8% RH and showed monotonic RH response in the 0–85% RH range. We found that MXene gravimetric response to water is 10 times faster than their electrical response, suggesting that H2O-induced swelling/contraction of channels between MXene sheets results in trapping of H2O molecules that act as charge-depleting dopants. Here, the results demonstrate the use of MXenes as humidity sensors and infer potential impact of water on structural and electrical performance of MXene-based devices.},

  doi          = {10.1021/acsnano.7b05264},

  journal      = {ACS Nano},

  number       = [11],

  volume       = [11],

  place        = {United States},

  year         = {2017},

  month        = {10}

}

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DOI: 10.1021/acsnano.7b05264

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Cited by: 16 works

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Figure 1: (a,b) Normalized neutron intensities with respect to vanadium rod scattering for hydrated and dryMg- and K-intercalated MXenes, referenced to pristine Ti₃C₂T_x sample. Data for linear interpolation are shown in red, and the hydrated sample data are shown in blue. (c) Expanded view in the low-Q region of plotsmore »

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