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Rational Design of Nanoporous MoS2/VS2 Heteroarchitecture for Ultrahigh Performance Ammonia Sensors

Journal Article


Abstract

  • 2D transition metal dichalcogenides (TMDs) have received widespread

    interest by virtue of their excellent electrical, optical, and electrochemical

    characteristics. Recent studies on TMDs have revealed their versatile

    utilization as electrocatalysts, supercapacitors, battery materials, and sensors,

    etc. In this study, MoS2 nanosheets are successfully assembled on the porous

    VS2 (P-VS2) scaffold to form a MoS2/VS2 heterostructure. Their gas-sensing

    features, such as sensitivity and selectivity, are investigated by using a

    quartz crystal microbalance (QCM) technique. The QCM results and density

    functional theory (DFT) calculations reveal the impressive affinity of the

    MoS2/VS2 heterostructure sensor toward ammonia with a higher adsorption

    uptake than the pristine MoS2 or P-VS2 sensor. Furthermore, the adsorption

    kinetics of the MoS2/VS2 heterostructure sensor toward ammonia follow

    the pseudo-first-order kinetics model. The excellent sensing features of the

    MoS2/VS2 heterostructure render it attractive for high-performance ammonia

    sensors in diverse applications.

UOW Authors

  •   Zhang, Shuaihua (external author)
  •   Wang, Jiayu (external author)
  •   Torad, Nagy L. (external author)
  •   Xia, Wei (external author)
  •   Aslam, Muhammad A. (external author)
  •   Kaneti, Yusuf (external author)
  •   Hou, Zhufeng (external author)
  •   Ding, Zejun (external author)
  •   Da, Bo (external author)
  •   Fatehmulla, Amanullah (external author)
  •   Aldhafiri, Abdullah (external author)
  •   Farooq, Wazirzada (external author)
  •   Tang, Jing (external author)
  •   Bando, Yoshio
  •   Yamauchi, Yusuke (external author)

Publication Date

  • 2019

Published In

Citation

  • Zhang, S., Wang, J., Torad, N. L., Xia, W., Aslam, M. Aamir., Kaneti, Y. Valentino., Hou, Z., Ding, Z., Da, B., Fatehmulla, A., Aldhafiri, A. M., Farooq, W. Aslam., Tang, J., Bando, Y. & Yamauchi, Y. (2019). Rational Design of Nanoporous MoS2/VS2 Heteroarchitecture for Ultrahigh Performance Ammonia Sensors. Small, Online First 1901718-1-1901718-9.

Scopus Eid

  • 2-s2.0-85073778771

Ro Metadata Url

  • http://ro.uow.edu.au/aiimpapers/3918

Start Page

  • 1901718-1

End Page

  • 1901718-9

Volume

  • Online First

Place Of Publication

  • Germany

Abstract

  • 2D transition metal dichalcogenides (TMDs) have received widespread

    interest by virtue of their excellent electrical, optical, and electrochemical

    characteristics. Recent studies on TMDs have revealed their versatile

    utilization as electrocatalysts, supercapacitors, battery materials, and sensors,

    etc. In this study, MoS2 nanosheets are successfully assembled on the porous

    VS2 (P-VS2) scaffold to form a MoS2/VS2 heterostructure. Their gas-sensing

    features, such as sensitivity and selectivity, are investigated by using a

    quartz crystal microbalance (QCM) technique. The QCM results and density

    functional theory (DFT) calculations reveal the impressive affinity of the

    MoS2/VS2 heterostructure sensor toward ammonia with a higher adsorption

    uptake than the pristine MoS2 or P-VS2 sensor. Furthermore, the adsorption

    kinetics of the MoS2/VS2 heterostructure sensor toward ammonia follow

    the pseudo-first-order kinetics model. The excellent sensing features of the

    MoS2/VS2 heterostructure render it attractive for high-performance ammonia

    sensors in diverse applications.

UOW Authors

  •   Zhang, Shuaihua (external author)
  •   Wang, Jiayu (external author)
  •   Torad, Nagy L. (external author)
  •   Xia, Wei (external author)
  •   Aslam, Muhammad A. (external author)
  •   Kaneti, Yusuf (external author)
  •   Hou, Zhufeng (external author)
  •   Ding, Zejun (external author)
  •   Da, Bo (external author)
  •   Fatehmulla, Amanullah (external author)
  •   Aldhafiri, Abdullah (external author)
  •   Farooq, Wazirzada (external author)
  •   Tang, Jing (external author)
  •   Bando, Yoshio
  •   Yamauchi, Yusuke (external author)

Publication Date

  • 2019

Published In

Citation

  • Zhang, S., Wang, J., Torad, N. L., Xia, W., Aslam, M. Aamir., Kaneti, Y. Valentino., Hou, Z., Ding, Z., Da, B., Fatehmulla, A., Aldhafiri, A. M., Farooq, W. Aslam., Tang, J., Bando, Y. & Yamauchi, Y. (2019). Rational Design of Nanoporous MoS2/VS2 Heteroarchitecture for Ultrahigh Performance Ammonia Sensors. Small, Online First 1901718-1-1901718-9.

Scopus Eid

  • 2-s2.0-85073778771

Ro Metadata Url

  • http://ro.uow.edu.au/aiimpapers/3918

Start Page

  • 1901718-1

End Page

  • 1901718-9

Volume

  • Online First

Place Of Publication

  • Germany