Self‐Toughened 2D Moiré Superlattice Membranes with Extreme Thermal Shock Tolerance

Excellent mechanical strength and toughness are demanded for two-dimensional material (2DM) membranes in various applications to withstand extreme strain and temperature changes and resist crack propagation. However, the trade-off between strength and toughness poses significant challenges in meeting these requirements. This study presents a self-toughened 2D moiré superlattice membrane composed of vertically stacked hexagonal boron nitride and graphene (hBN/Gr) that exhibits high mechanical strength. The intrinsic toughness originates from the high energy release rate associated with the crack deflection and bifurcation in hBN. Remarkably, this robust membrane endures 200 cycles of thermal shock up to 1800 K with 10<sup>4</sup> K s<sup>-1</sup> heating rate, during which high-entropy alloy nanoparticles (HEA-NPs) are successfully synthesized. The findings pave the way for the design and fabrication of robust 2D superlattices, facilitating future exploration under extreme conditions.

Authors

Institutions

Publication Details

Journal
Advanced Materials
Published
2025-08-08
DOI
https://doi.org/10.1002/adma.202502792
Primary Topic
Graphene research and applications
Type
article
Field-Weighted Citation Impact
0.00

Funders

Controls
|||
ALL TIME
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
article

Self‐Toughened 2D Moiré Superlattice Membranes with Extreme Thermal Shock Tolerance

Guotong Wang, Weiyu Sun, Xin Gao, Kaicheng Jia et al.
Advanced Materials
Graphene research and applications
article

Self‐Toughened 2D Moiré Superlattice Membranes with Extreme Thermal Shock Tolerance

Guotong Wang, Weiyu Sun, Xin Gao, Kaicheng Jia, Wenqing Zhu, Xiaoding Wei, Liming Zheng, Hailin Peng, Xiaoyin Gao, Jiahao Wang, Shiwei Wang, Yani Wang, Zhongfan Liu
article en

Abstract

Excellent mechanical strength and toughness are demanded for two-dimensional material (2DM) membranes in various applications to withstand extreme strain and temperature changes and resist crack propagation. However, the trade-off between strength and toughness poses significant challenges in meeting these requirements. This study presents a self-toughened 2D moiré superlattice membrane composed of vertically stacked hexagonal boron nitride and graphene (hBN/Gr) that exhibits high mechanical strength. The intrinsic toughness originates from the high energy release rate associated with the crack deflection and bifurcation in hBN. Remarkably, this robust membrane endures 200 cycles of thermal shock up to 1800 K with 10<sup>4</sup> K s<sup>-1</sup> heating rate, during which high-entropy alloy nanoparticles (HEA-NPs) are successfully synthesized. The findings pave the way for the design and fabrication of robust 2D superlattices, facilitating future exploration under extreme conditions.

Advanced MaterialsVol. 37(41)
National University of Singapore (SG), City University of Hong Kong (HK), Peking University (CN), Beijing National Laboratory for Molecular Sciences (CN)
National Natural Science Foundation of China, National Key Research and Development Program of China, Beijing National Laboratory for Molecular Sciences
Affordable and clean energy
Openalex Percentile: Top 85%
Graphene research and applications
DOISourceOpenAlex
AI Navigator

Ask Laika to Summarize, Analyze, and Connect papers live on the map.

Summarize Papers & Methodologies

Extract key findings, datasets, and comparative methods across publications.

Benchmark Rankings & Visual Analytics

Rank top research institutions, authors, funders, topics, and journals by Field-Weighted Citation Impact (FWCI) and paper volume with instant charts.

Connect Distant Disciplines

Bridge topological clusters on the map to find hidden collaborative intersections.