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Harvesting Energy from Atmospheric Water: Grand Challenges in Continuous Electricity Generation
Advanced Materials ( IF 27.4 ) Pub Date : 2023-01-27 , DOI: 10.1002/adma.202211165
Jin Tan 1 , Xiang Wang 1 , Weicun Chu 1 , Sunmiao Fang 1 , Chunxiao Zheng 1 , Minmin Xue 1 , Xiaofan Wang 1 , Tao Hu 1 , Wanlin Guo 2
Advanced Materials ( IF 27.4 ) Pub Date : 2023-01-27 , DOI: 10.1002/adma.202211165
Jin Tan 1 , Xiang Wang 1 , Weicun Chu 1 , Sunmiao Fang 1 , Chunxiao Zheng 1 , Minmin Xue 1 , Xiaofan Wang 1 , Tao Hu 1 , Wanlin Guo 2
Affiliation
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Atmospheric water is ubiquitous on earth and extensively participates in the natural water cycle through evaporation and condensation. This process involves tremendous energy exchange with the environment, but very little of the energy has so far been harnessed. The recently emerged hydrovoltaic technology, especially moisture-induced electricity, shows great potential in harvesting energy from atmospheric water and gives birth to moisture energy harvesting devices. The device performance, especially the long-term operational capacity, has been significantly enhanced over the past few years. Further development; however, requires in-depth understanding of mechanisms, innovative materials, and ingenious system designs. In this review, beginning with describing the basic properties of water, the key aspects of the water–hygroscopic material interactions and mechanisms of power generation are discussed. The current material systems and advances in promising material development are then summarized. Aiming at the chief bottlenecks of limited operational time, advanced system designs that are helpful to improve device performance are listed. Especially, the synergistic effect of moisture adsorption and water evaporation on material and system levels to accomplish sustained electricity generation is discussed. Last, the remaining challenges are analyzed and future directions for developing this promising technology are suggested.
中文翻译：
从大气水中获取能量：连续发电的巨大挑战
大气水在地球上无处不在，通过蒸发和冷凝广泛参与自然水循环。这个过程涉及与环境的巨大能量交换，但迄今为止，只有很少的能量被利用。最近出现的水力发电技术，特别是湿气发电，在从大气水中获取能量方面显示出巨大的潜力，并催生了湿气能量收集装置。设备性能，尤其是长期运行能力，在过去几年中得到了显着增强。进一步发展；然而，这需要对机制、创新材料和巧妙的系统设计的深入理解。在这篇综述中，从描述水的基本性质开始，讨论了水-吸湿材料相互作用的关键方面和发电机制。然后总结了当前的材料系统和有前途的材料开发的进展。针对运行时间有限的主要瓶颈，列出了有助于提高设备性能的先进系统设计。特别是，讨论了水分吸附和水蒸发在材料和系统水平上的协同效应，以实现持续发电。最后，分析了剩余的挑战，并提出了开发这项有前途的技术的未来方向。
更新日期：2023-01-27
中文翻译：
从大气水中获取能量：连续发电的巨大挑战
大气水在地球上无处不在，通过蒸发和冷凝广泛参与自然水循环。这个过程涉及与环境的巨大能量交换，但迄今为止，只有很少的能量被利用。最近出现的水力发电技术，特别是湿气发电，在从大气水中获取能量方面显示出巨大的潜力，并催生了湿气能量收集装置。设备性能，尤其是长期运行能力，在过去几年中得到了显着增强。进一步发展；然而，这需要对机制、创新材料和巧妙的系统设计的深入理解。在这篇综述中，从描述水的基本性质开始，讨论了水-吸湿材料相互作用的关键方面和发电机制。然后总结了当前的材料系统和有前途的材料开发的进展。针对运行时间有限的主要瓶颈，列出了有助于提高设备性能的先进系统设计。特别是，讨论了水分吸附和水蒸发在材料和系统水平上的协同效应，以实现持续发电。最后，分析了剩余的挑战，并提出了开发这项有前途的技术的未来方向。
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