Products of Degradation of Black Phosphorus in Protic Solvents
Products of Degradation of Black Phosphorus in Protic Solvents
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DOI：
10.1021/acsnano.8b03740
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发表时间：
2018-08-01
期刊：
影响因子：
17.1
通讯作者：
Pumera, Martin
中科院分区：
文献类型：
--
作者：
Plutnar, Jan;Sofer, Zdenek;Pumera, Martin
由环境大气引起的黑磷(BP)表面劣化是一种不受欢迎的过程，限制了BP在许多领域的广泛使用。从理论上解释了BP的降解机理，并对氧化产物进行了详细的实验表征。然而，表面分析技术仅对材料的真实状态进行了有限的了解。在这里，我们报告了对BP悬浮液长期暴露在大气氧气中后得到的混合物的组成进行彻底分析，目的是进一步揭示分解过程中涉及的过程。将计算结果与预测的氧化物结构进行了比较，证实了理论计算的结果。将BP的反应性与白磷在相似条件下的反应性进行比较，得出两种情况下产物的分布相似。
Deterioration of the surface of black phosphorus (BP) caused by ambient atmosphere is an undesired process, limiting broader use of BP in many areas. The mechanism of BP degradation was explained theoretically, and the oxidized materials were thoroughly characterized experimentally. However, the surface analysis techniques introduce only a limited insight into the real state of the material. Here, we report a thorough analysis of the composition of mixtures obtained after a prolonged exposure of suspensions of BP to atmospheric oxygen with the aim to further disclosure the processes involved in the decomposition process. The results are compared with the predicted structures of the oxidized material and confirm the results of the theoretical calculations. The comparison of reactivity of BP with reactivity of white phosphorus under similar conditions concludes a similar distribution of the products in both cases.