Highly efficient solar driven cogeneration of freshwater and electricity

Xu, Yunfan; Dong, Shikui; Sheng, Yuhang; Liu, Cihui; Xing, Fangjian; Di, Yunsong; Gan, Zhixing

doi:10.1039/d2ta08590a

Cited by 18 publications

(5 citation statements)

References 57 publications

(68 reference statements)

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“…The performance of the designed PSS–HPSA is comparable to the recently reported systems (Figure d and Table S2). ,,− …”

Section: Resultsmentioning

confidence: 61%

Electricity Harvesting from Water Evaporation on Hierarchical Pore Gradient Silica Aerogel-Based Generators

Tian,

Chang,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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In this study, the electric energy harvesting capability of the hierarchical pore gradient silica aerogel (HPSA) is demonstrated due to its unique porous structure and inherent hydroxyl groups on the surface. Taking advantage of the positively charged surface of unwashed HPSA credited by the preparation strategy, poly(4-styrene sulfonic acid) (PSS) can be spontaneously adsorbed onto unwashed HPSA and shows gradient distribution due to the pore-gradient structure of HPSA. By virtue of the gradient distribution and the stronger ionization of PSS, PSS-modified HPSA (PSS−HPSA) shows enhanced electricity generation performance from natural water evaporation with an average output voltage of 0.77 V on an individual device. The water evaporation-induced electricity property of PSS−HPSA can be maintained in the presence of a low concentration of salt. The desirable salt resistance capability benefits from the unique 3D hierarchical porous structure of HPSA which ensures rapid water replenishment so as to effectively avoid the salt accumulation. The HPSA-based devices with the advantages of unique porous structure, easy functionalization, good physicochemical stability, good salt resistance capability, and eco-friendliness show great potential as water evaporation-induced electricity generators.

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“…The performance of the designed PSS–HPSA is comparable to the recently reported systems (Figure d and Table S2). ,,− …”

Section: Resultsmentioning

confidence: 61%

Electricity Harvesting from Water Evaporation on Hierarchical Pore Gradient Silica Aerogel-Based Generators

Tian,

Chang,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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“…Certainly, the documented energy conversion efficiency of thermoelectric devices based on solar heating or radiation cooling is comparatively modest. [179] Consequently, incorporating additional technologies, such as triboelectric and hydrovoltaic effects, [148,[180][181][182] becomes imperative to achieve a comprehensive enhancement in the overall electrical . Reproduced with permission.…”

Section: Solar Heating and Radiation Coolingmentioning

confidence: 99%

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

Li,

Zhang,

et al. 2024

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The utilization of solar‐thermal energy and universal cold energy has led to many innovative designs that achieve effective temperature regulation in different application scenarios. Numerous studies on passive solar heating and radiation cooling often operate independently (or actively control the conversion) and lack a cohesive framework for deep connections. This work provides a concise overview of the recent breakthroughs in solar heating and radiation cooling by employing a mechanism material in the application model. Furthermore, the utilization of dynamic Janus‐like behavior serves as a novel nexus to elucidate the relationship between solar heating and radiation cooling, allowing for the analysis of dynamic conversion strategies across various applications. Additionally, special discussions are provided to address specific requirements in diverse applications, such as optimizing light transmission for clothing or window glass. Finally, the challenges and opportunities associated with the development of solar heating and radiation cooling applications are underscored, which hold immense potential for substantial carbon emission reduction and environmental preservation. This work aims to ignite interest and lay a solid foundation for researchers to conduct in‐depth studies on effective and self‐adaptive regulation of cooling and heating.

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“…Likewise, Y. Xu et al adopted an evaporation-driven electricity (EDE) generation technique, employing a 3D porous hydrophilic graphene aerogel (HGA), which resulted in a continuous output voltage of 0.84 V and a maximum power density of 6.84 μW cm −2 . 40 In the EDE method, the generation of heat from solar energy induces a thermodiffusion effect, propelling hydrated ions carrying a countercharge toward the surface, where they accumulate at one end, following the flow direction, and establishing an ion concentration gradient, consequently forming potential difference. 41 However, it's worth noting that this method yields comparatively lower electricity generation and is cost-prohibitive for large-scale applications.…”

Section: Introductionmentioning

confidence: 99%

rGO coated cotton fabric and thermoelectric module arrays for efficient solar desalination and electricity generation

Saleque,

Thakur,

Saidur

et al. 2024

J. Mater. Chem. A

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Highly efficient solar driven cogeneration of freshwater and electricity

Abstract: The integration of solar steam generation (SSG) and hydrovoltaic effect provides an ideal strategy to solve the crisis of water and energy shortage. However, previous attempts still cannot simultaneously collect...

Cited by 18 publications

References 57 publications

Electricity Harvesting from Water Evaporation on Hierarchical Pore Gradient Silica Aerogel-Based Generators

Electricity Harvesting from Water Evaporation on Hierarchical Pore Gradient Silica Aerogel-Based Generators

Dynamical Janus‐Like Behavior Excited by Passive Cold‐Heat Modulation in the Earth‐Sun/Universe System: Opportunities and Challenges

rGO coated cotton fabric and thermoelectric module arrays for efficient solar desalination and electricity generation

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