Transition-Metal Dichalcogenide NiTe2: An Ambient-Stable Material for Catalysis and Nanoelectronics

Silvia Nappini, Danil W. Boukhvalov, Gianluca D'Olimpio, Libo Zhang, Barun Ghosh, Chia Nung Kuo, Haoshan Zhu, Jia Cheng, Michele Nardone, Luca Ottaviano, Debashis Mondal, Raju Edla, Jun Fuji, Chin Shan Lue, Ivana Vobornik, Jory A. Yarmoff, Amit Agarwal, Lin Wang, Lixue Zhang, Federica BondinoAntonio Politano

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


By means of theory and experiments, the application capability of nickel ditelluride (NiTe2) transition-metal dichalcogenide in catalysis and nanoelectronics is assessed. The Te surface termination forms a TeO2 skin in an oxygen environment. In ambient atmosphere, passivation is achieved in less than 30 min with the TeO2 skin having a thickness of about 7 Å. NiTe2 shows outstanding tolerance to CO exposure and stability in water environment, with subsequent good performance in both hydrogen and oxygen evolution reactions. NiTe2-based devices consistently demonstrate superb ambient stability over a timescale as long as one month. Specifically, NiTe2 has been implemented in a device that exhibits both superior performance and environmental stability at frequencies above 40 GHz, with possible applications as a receiver beyond the cutoff frequency of a nanotransistor.

Original languageEnglish
Article number2000915
JournalAdvanced Functional Materials
Issue number22
Publication statusPublished - 2020 May 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics


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