{"title":"提高ZSM-5材料水态控制的表面电荷调节,以促进水蒸发发电","authors":"Jiangying Qu, Qian Yin, Zhe Jiao, Jiawei Ge, Feng Gao, Yunhao Zang","doi":"10.1016/j.micromeso.2025.113606","DOIUrl":null,"url":null,"abstract":"<div><div>Water evaporation power generation (WEPG) is recognized as a novel and pollution-free energy technology. However, the regulation of water states in generating materials and their impact on power generation performance remain under-explored. In this study, a series of samples denoted as ZSM-5/Tx (where x = 0–7.00), with varying surface charges, are prepared by tailoring their Si/Al ratio. It is found that a lower Si/Al ratio results in a higher surface charge of the material. Consequently, a positive correlation between surface charge and WEPG performances is observed, with ZSM-5/Tx samples that have higher surface charges showing increased open-circuit voltage (<em>V</em><sub><em>oc</em></sub>) and short-circuit current (<em>I</em><sub><em>sc</em></sub>). Among all the samples, the typical ZSM-5/T3.55 sample, which has the highest surface charge, demonstrates the highest <em>V</em><sub><em>oc</em></sub> of 1.35 V and <em>I</em><sub><em>sc</em></sub> of 223 nA. Theoretical calculations indicate that charge accumulation between ZSM-5/Tx and water molecules increases with surface charge, i.e., 0.00038 e<sup>−</sup> for ZSM-5/T1.50, 0.0005 e<sup>−</sup> for ZSM-5/T3.55, and 0.00035 e<sup>−</sup> for ZSM-5/T7.00. The study further reveals that surface charge influences the water states of intermediate water (IW) and free water (FW) within the microchannels of ZSM-5/Tx. As the surface charge of ZSM-5/Tx increases, the IW/FW ratio follows the order of 0.72 (ZSM-5/T3.55) > 0.59 (ZSM-5/T1.50) > 0.48 (ZSM-5/T7.00) > 0.36 (ZSM-5/T0). The increase in the IW/FW ratio reduces energy consumption and enhances water evaporation, and IW is more likely to detach from ZSM-5/Tx at higher surface charges, thus improving power generation efficiency.</div></div>","PeriodicalId":392,"journal":{"name":"Microporous and Mesoporous Materials","volume":"391 ","pages":"Article 113606"},"PeriodicalIF":4.8000,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Surface charge regulation for enhanced control of water states in ZSM-5 materials to boost water evaporation power generation\",\"authors\":\"Jiangying Qu, Qian Yin, Zhe Jiao, Jiawei Ge, Feng Gao, Yunhao Zang\",\"doi\":\"10.1016/j.micromeso.2025.113606\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Water evaporation power generation (WEPG) is recognized as a novel and pollution-free energy technology. However, the regulation of water states in generating materials and their impact on power generation performance remain under-explored. In this study, a series of samples denoted as ZSM-5/Tx (where x = 0–7.00), with varying surface charges, are prepared by tailoring their Si/Al ratio. It is found that a lower Si/Al ratio results in a higher surface charge of the material. Consequently, a positive correlation between surface charge and WEPG performances is observed, with ZSM-5/Tx samples that have higher surface charges showing increased open-circuit voltage (<em>V</em><sub><em>oc</em></sub>) and short-circuit current (<em>I</em><sub><em>sc</em></sub>). Among all the samples, the typical ZSM-5/T3.55 sample, which has the highest surface charge, demonstrates the highest <em>V</em><sub><em>oc</em></sub> of 1.35 V and <em>I</em><sub><em>sc</em></sub> of 223 nA. Theoretical calculations indicate that charge accumulation between ZSM-5/Tx and water molecules increases with surface charge, i.e., 0.00038 e<sup>−</sup> for ZSM-5/T1.50, 0.0005 e<sup>−</sup> for ZSM-5/T3.55, and 0.00035 e<sup>−</sup> for ZSM-5/T7.00. The study further reveals that surface charge influences the water states of intermediate water (IW) and free water (FW) within the microchannels of ZSM-5/Tx. As the surface charge of ZSM-5/Tx increases, the IW/FW ratio follows the order of 0.72 (ZSM-5/T3.55) > 0.59 (ZSM-5/T1.50) > 0.48 (ZSM-5/T7.00) > 0.36 (ZSM-5/T0). The increase in the IW/FW ratio reduces energy consumption and enhances water evaporation, and IW is more likely to detach from ZSM-5/Tx at higher surface charges, thus improving power generation efficiency.</div></div>\",\"PeriodicalId\":392,\"journal\":{\"name\":\"Microporous and Mesoporous Materials\",\"volume\":\"391 \",\"pages\":\"Article 113606\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2025-03-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Microporous and Mesoporous Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1387181125001209\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microporous and Mesoporous Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1387181125001209","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Surface charge regulation for enhanced control of water states in ZSM-5 materials to boost water evaporation power generation
Water evaporation power generation (WEPG) is recognized as a novel and pollution-free energy technology. However, the regulation of water states in generating materials and their impact on power generation performance remain under-explored. In this study, a series of samples denoted as ZSM-5/Tx (where x = 0–7.00), with varying surface charges, are prepared by tailoring their Si/Al ratio. It is found that a lower Si/Al ratio results in a higher surface charge of the material. Consequently, a positive correlation between surface charge and WEPG performances is observed, with ZSM-5/Tx samples that have higher surface charges showing increased open-circuit voltage (Voc) and short-circuit current (Isc). Among all the samples, the typical ZSM-5/T3.55 sample, which has the highest surface charge, demonstrates the highest Voc of 1.35 V and Isc of 223 nA. Theoretical calculations indicate that charge accumulation between ZSM-5/Tx and water molecules increases with surface charge, i.e., 0.00038 e− for ZSM-5/T1.50, 0.0005 e− for ZSM-5/T3.55, and 0.00035 e− for ZSM-5/T7.00. The study further reveals that surface charge influences the water states of intermediate water (IW) and free water (FW) within the microchannels of ZSM-5/Tx. As the surface charge of ZSM-5/Tx increases, the IW/FW ratio follows the order of 0.72 (ZSM-5/T3.55) > 0.59 (ZSM-5/T1.50) > 0.48 (ZSM-5/T7.00) > 0.36 (ZSM-5/T0). The increase in the IW/FW ratio reduces energy consumption and enhances water evaporation, and IW is more likely to detach from ZSM-5/Tx at higher surface charges, thus improving power generation efficiency.
期刊介绍:
Microporous and Mesoporous Materials covers novel and significant aspects of porous solids classified as either microporous (pore size up to 2 nm) or mesoporous (pore size 2 to 50 nm). The porosity should have a specific impact on the material properties or application. Typical examples are zeolites and zeolite-like materials, pillared materials, clathrasils and clathrates, carbon molecular sieves, ordered mesoporous materials, organic/inorganic porous hybrid materials, or porous metal oxides. Both natural and synthetic porous materials are within the scope of the journal.
Topics which are particularly of interest include:
All aspects of natural microporous and mesoporous solids
The synthesis of crystalline or amorphous porous materials
The physico-chemical characterization of microporous and mesoporous solids, especially spectroscopic and microscopic
The modification of microporous and mesoporous solids, for example by ion exchange or solid-state reactions
All topics related to diffusion of mobile species in the pores of microporous and mesoporous materials
Adsorption (and other separation techniques) using microporous or mesoporous adsorbents
Catalysis by microporous and mesoporous materials
Host/guest interactions
Theoretical chemistry and modelling of host/guest interactions
All topics related to the application of microporous and mesoporous materials in industrial catalysis, separation technology, environmental protection, electrochemistry, membranes, sensors, optical devices, etc.