文献类型：期刊文献

英文题名：Shear properties and stable wrinkle resistance in 2D Ti3C2Tx MXene monolayers

作者：Rong, Chao[1,2,3];Su, Ting[1,2,3];Yu, Tianhao[1,2,3];Wang, Xiaoyuan[1,2,3];Chu, Tianshu[1,2,3];Zhu, Mingliang[1,2,3];Yan, Yabin[1,2,3];Zhang, Bowei[1,2,3];Xuan, Fu-Zhen[1,2,3]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Intelligent Sensing & Detect Tech, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai, Peoples R China;[3]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai, Peoples R China

年份：2026

卷号：17

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001714834200003)】；

基金：B.Z. acknowledges the National Natural Science Foundation of China (Grant No. 52422505, No. 12274124), the Shanghai Pilot Program for Basic Research (Grant No. 22TQ1400100-6). Y.Y. acknowledges the National Natural Science Foundation of China (Grant No. 52275149 and U2468210), the Scientific Research Innovation Capability Support Project for Young Faculty (Grant No. ZYGXQNJSKYCXNLZCXM-D5). F.-Z.X. thanks the Innovative Research Group Project of the National Natural Science Foundation of China (Grant No. 52321002), the Basic Research Program of Science and Technology Commission of Shanghai Municipality (22JC1400600).

语种：英文

摘要：Two-dimensional (2D) transition metal carbides or nitrides (MXenes), represented by Ti3C2Tx, exhibit exceptional mechanical and electrical properties, making them ideal candidates in aerospace, structural membranes, and flexible electronics. Understanding the mechanical properties of 2D Ti3C2Tx under various load conditions is crucial for ensuring structural integrity and performance reliability. Here, we conduct direct in-situ shear test of monolayer Ti3C2Tx nanosheets using a push-to-shear strategy under the scanning electron microscope. Contrary to the expected ultra-low shear performance and wrinkle instability of 2D materials, we report a high in-plane shear modulus of 0.279 +/- 0.007 TPa for single-crystal monolayer Ti3C2Tx , along with stable wrinkle resistance. Additionally, the monolayer Ti3C2Tx exhibits a shear strength as high as similar to 18.6 GPa and an average shear strain of similar to 8.6%. This work provides direct measurement of the intrinsic shear properties of monolayer Ti3C2Tx and highlights the promising potential of Ti3C2Tx in maintaining device performance and reliability.