水在纳秒内分解降解二维IV族单硫属化合物
材料科学
2018-10-26 v1
摘要
迄今为止，采用类似于制备石墨烯或磷烯的工艺对层状IV族单硫属化合物（与黑磷同构的半导体）进行实验剥离均未成功，仿佛黑磷中所观察到的化学降解在这些单硫属化合物中更为严重。在此，我们通过标准温压条件下的室温Car-Parrinello分子动力学计算，记录了这些材料在十纳秒内对水的高效解离。这些结果表明，必须完全消除湿度才能成功剥离单层，例如可在机械剥离过程中将样品置于疏水溶液中。从另一种材料视角看，这些无需光照即可从水中产生单个氢离子的二维材料，可能在制氢与储氢应用中具有重要意义。
引用
@article{arxiv.1810.02841,
title = {Water splits to degrade two-dimensional group-IV monochalcogenides in nanoseconds},
author = {Salvador Barraza-Lopez and Thaneshwor P. Kaloni},
journal= {arXiv preprint arXiv:1810.02841},
year = {2018}
}
备注
This document is the Accepted Manuscript version of Published Work that appeared in final form in ACS Central Science, copyright American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work please use the following link: https://pubs.acs.org/doi/10.1021/acscentsci.8b00589