The thermal stability of α-, β-, 6,6,12-graphyne and graphdiyne was studied by a statistic model, which was seriously tested by classical molecular dynamics simulations. By first-principles calculations of related potential energy curves, the model predicts that all the lifetime of free-standing single layer graphynes considered is more than 1044 years at room temperature. When the temperature gets up to 1000 K, they are still very stable, but quickly turn into graphene if the temperature is about 2000 K
Cite
@article{arxiv.1310.2116,
title = {If graphynes turn into graphene: the thermal stability study},
author = {Yi-Guo Xu and Chen Ming and Zheng-Zhe Lin and Fan-Xin Meng and Jun Zhuang and Xi-Jing Ning},
journal= {arXiv preprint arXiv:1310.2116},
year = {2013}
}