Direct Measurement of Adhesions of Liquids on Graphite

Cangyu Qu, Wei Cao, Bingtong Liu, Anle Wang, Fankai Xie, Ming Ma, Wenzhe Shan, Michael Urbakh, Quanshui Zheng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Two-dimensional (2D) materials have a great potential to both enhance existing technologies and create a range of new applications. Precise knowledge of interfacial energy in contacts between 2D materials and liquids is a key step toward understanding their interfacial properties and functioning. Here, we propose a direct method to measure the graphite-liquid interfacial energies. The method is based on the use of superlubricity phenomenon that is a state of ultralow friction and wear, which has been achieved for a number of layered materials. This new methodology may be extended to other 2D materials and liquids and is expected to have an impact on both the fundamental understanding of the solid-liquid interactions and the design and fabrication of devices including 2D materials.

Original languageEnglish
Pages (from-to)11671-11676
Number of pages6
JournalJournal of Physical Chemistry C
Issue number18
StatePublished - 9 May 2019


FundersFunder number
Cyrus Tang Foundation202003
Deutsche ForschungsgemeinschaftBA 1008/21
National Natural Science Foundation of China11372153, 11632009, 11772168, 11890670, 11572173, 11172149
Israel Science Foundation1141/18
Tsinghua University2012Z01015, 2014z01007
Beijing Municipal Science and Technology CommissionZ151100003315008
Recruitment Program of Global Experts61050200116
National Key Research and Development Program of China2013CB934200


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