Carbon materials for hybrid evaporation-induced electricity generation systems

Ge, Can; Xu, Duo; Qian, Yan; Du, Heng; Gao, Chong; Shen, Zhuoer; Sun, Zhe; Fang, Jian

doi:10.1039/d3gc02805d

Green Chem.

2023

DOI: 10.1039/d3gc02805d

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Carbon materials for hybrid evaporation-induced electricity generation systems

Can Ge,

Duo Xu,

Yan Qian

et al.

Abstract: The most recent developments in carbon materials for hybrid evaporation-induced electricity generation systems are discussed in detail and analyzed in depth.

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2024

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Cited by 9 publications

References 119 publications

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Fibrous Solar Evaporator with Tunable Water Flow for Efficient, Self‐Operating, and Sustainable Hydroelectricity Generation

Ge,

Xu,

Song

et al. 2024

Adv Funct Materials

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Convenient and green hydroelectricity generation (HG) systems are widely studied to cope with the energy crisis. Electricity can be generated through streaming potential with merely water droplets. Nevertheless, the operational requirement of persistent water supply restricts the durability and practicality of HG. Solar‐driven steam generation with continuous and sufficient water flow has become a promising integration way to enhance HG sustainability. However, most evaporation‐accelerated hydroelectricity generators are threatened by excessive wetting decay and ionic erosion damage, which significantly impair charge accumulation and operational durability. To address this issue, a carbon black/polypyrrole decorated Tencel framework (CPF) with tunable water flow is fabricated through twisting and braiding technology. The modified water flow rate, height, and content ensure rapid ion migration, appropriate wetting boundary, and sufficient brine circulation, respectively. The aqueous flow and ion strength are optimized through the evaporation‐accelerated and desalination‐integrated HG. Hence, the CPF evaporator shows an efficient, self‐operating, and sustainable output of 0.73 V, 0.6 µA, and 2.38 kg m−2 h−1 in 3.5 wt.% brine under 1 sun radiation without salt deposition. The scalable, prolonged, and adaptable outdoor operation throughout the daytime ensures the clean production of electricity and freshwater.

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Fibrous Solar Evaporator with Tunable Water Flow for Efficient, Self‐Operating, and Sustainable Hydroelectricity Generation

Ge,

Xu,

Song

et al. 2024

Adv Funct Materials

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Photo‐Electro‐Thermal Textiles for Scalable, High‐Performance, and Salt‐Resistant Solar‐Driven Desalination

Xu,

Ge,

Chen

et al. 2024

Advanced Science

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Solar‐driven interfacial evaporation is an emerging desalination technology that can potentially relieve the freshwater scarcity issue. To obtain high and continuous evaporation rates for all‐weather, chemically engineered structural materials have been widely explored for simultaneous photothermal and electrothermal conversion. However, many previously reported fabrication processes involve poor integration and considerable energy loss. Herein, a scalable photo‐electro‐thermal textile is proposed to enable high efficiency, long‐term salt rejection, and solar‐driven desalination. Specifically, the photo‐electro‐thermal yarns with a core (commercial electric wire)‐shell (polypyrrole‐decorated Tencel) structure realize the integration of electrothermal and photothermal conversion. The wrapping eccentricity of 1.53 mm and pitch of 3 T cm−1 for the electric wire are rationally regulated to achieve a high surface temperature of over 52 °C at a 3 V DC input. As a result, exceptional and stable evaporation rates of 5.57 kg m−2 h−1 (pure water) and 4.89 kg m−2 h−1 (3.5 wt.% brine) under 1 kW m−2·radiation with a 3 V input voltage are realized. Practical application shows that the textiles can achieve high water collection of over 46 kg m−2 d−1 over the whole day of operation. The constructed photo‐electro‐thermal textile‐based evaporator provides an effective method for commercial and scalable photo‐electro‐thermal conversion to achieve high‐performance and salt‐resistant solar‐driven desalination.

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Janus Structured Solar Evaporator with Intrinsic Salt Resistance towards High-Efficient Desalination

Wang,

Chen,

Bai

et al. 2024

J Inorg Organomet Polym

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Carbon materials for hybrid evaporation-induced electricity generation systems

Abstract: The most recent developments in carbon materials for hybrid evaporation-induced electricity generation systems are discussed in detail and analyzed in depth.

Cited by 9 publications

References 119 publications

Fibrous Solar Evaporator with Tunable Water Flow for Efficient, Self‐Operating, and Sustainable Hydroelectricity Generation

Fibrous Solar Evaporator with Tunable Water Flow for Efficient, Self‐Operating, and Sustainable Hydroelectricity Generation

Photo‐Electro‐Thermal Textiles for Scalable, High‐Performance, and Salt‐Resistant Solar‐Driven Desalination

Janus Structured Solar Evaporator with Intrinsic Salt Resistance towards High-Efficient Desalination

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