Tang Binze, Buldyrev Sergey V, Xu Limei, Giovambattista Nicolas
International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China.
Department of Physics, Yeshiva University, 500 West 185th Street, New York, New York 10033, United States.
Langmuir. 2023 Sep 26;39(38):13449-13458. doi: 10.1021/acs.langmuir.3c01051. Epub 2023 Sep 14.
We show that nanoscale water capillary bridges (WCB) formed between patchy surfaces can extract energy from the environment when subjected to changes in relative humidity (RH). Our results are based on molecular dynamics simulations combined with a modified version of the Laplace-Kelvin equation, which is validated using the nanoscale WCB. The calculated energy density harvested by the nanoscale WCB is relevant, ≈1700 kJ/m, and is comparable to the energy densities harvested using available water-responsive materials that expand and contract due to changes in RH.
我们表明，当受到相对湿度（RH）变化影响时，在斑状表面之间形成的纳米级水毛细管桥（WCB）能够从环境中提取能量。我们的结果基于分子动力学模拟，并结合了拉普拉斯-开尔文方程的修正版本，该方程已通过纳米级WCB得到验证。纳米级WCB所收集的计算能量密度具有实际意义，约为1700 kJ/m，并且与使用因RH变化而膨胀和收缩的现有水响应材料所收集的能量密度相当。
