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Deng Q, Wang H, Zhou X, Xie Z, Tian Y, Zhu X, Chen R, Ding Y, Liao Q. Microstructure Enhances the Local Electric Field and Promotes Water Freezing. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Qiyuan Deng
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Hong Wang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Xin Zhou
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Zhenting Xie
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Ye Tian
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Rong Chen
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Yudong Ding
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education, Chongqing University, Chongqing 400030, China
- Institute of Engineering Thermophysics, School of energy and power engineering, Chongqing University, Chongqing 400030, China
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Whale TF. Disordering effect of the ammonium cation accounts for anomalous enhancement of heterogeneous ice nucleation. J Chem Phys 2022; 156:144503. [DOI: 10.1063/5.0084635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Heterogeneous nucleation of ice from supercooled water is the process responsible for triggering nearly all ice formation in the natural environment. Understanding of heterogeneous ice nucleation is particularly key for understanding the formation of ice in clouds, which impacts weather and climate. While many effective ice nucleators are known the mechanisms of their actions remain poorly understood. Some inorganic nucleators have been found to nucleate ice at warmer temperatures in dilute ammonium solution than in pure water. This is surprising, analogous to salty water melting at a warmer temperature than pure water. Here, the magnitude of this effect is rationalized as being due to thermodynamically favorable ammonium-induced disordering of the hydrogen bond network of ice critical clusters formed on inorganic ice nucleators. Theoretical calculations are shown to be consistent with new experimental measurements aimed at finding the maximum magnitude of the effect. The implication of this study is that the ice-nucleating sites and surfaces of many inorganic ice nucleators are either polar or charged and therefore tend to induce formation of hydrogen ordered ice clusters. This work corroborates various literature reports indicating that some inorganic ice nucleators are most effective when nominally neutral and implies a commonality in mechanism between a wide range of inorganic ice nucleators.
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Affiliation(s)
- Thomas F Whale
- Department of Chemistry, University of Warwick, United Kingdom
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