Biomimetic MXene Textures with Enhanced Light‐to‐Heat Conversion for Solar Steam Generation and Wearable Thermal Management

Li, Kerui; Chang, Tun-Tschu; Li, Zhipeng; Yang, Haitao; Fu, Fanfan; Li, Tingting; Ho, John S.; Chen, Po‐Yen

doi:10.1002/aenm.201901687

Cited by 232 publications

(189 citation statements)

References 65 publications

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“…Zhu and co‐workers fabricated a novel nanoporous aluminum membrane as shown in Figure 5d, and after decorating it with self‐assembled plasmonic aluminum nanoparticles, this low‐cost all Al structure was found to absorb 96% of a broad solar spectrum. [ 43 ] In a recent report by Li et al, [ 107 ] this effect demonstrated in a MXene‐based hierarchical crumbling structure (93.2% light absorption) was theoretically validated by simulated electric field distributions (Figure 5e).…”

Section: Design Principles To Approach 100% Efficiencymentioning

confidence: 52%

Structure Architecting for Salt‐Rejecting Solar Interfacial Desalination to Achieve High‐Performance Evaporation With In Situ Energy Generation

et al. 2020

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requirement has given rise to research thrusts being focused on the development of solar-driven evaporation based desalination technologies. [4][5][6][7] The research on using solar energy in the desalination process has a long history. [3,8,9] In a traditional singleslope basin-like solar still (Figure 1a), saline water is heated and subsequently evaporated by directly exposing to solar radiation. Solar energy is absorbed and converted into thermal energy by a black light-absorbing liner that is situated at the bottom of the solar basin. [10] Due to this design, the solar absorber is immersed in bulk seawater and it hardly receives a fraction of the incoming solar radiation owing to poor light penetration through the thick water layer. Furthermore, the produced heat is easily dissipated into the bulk water, and further lost to the surroundings through water surface radiation, convection and conduction. Due to the above reasons, the resulting solar-tosteam conversion efficiency is inevitably low. Nanoparticle dispersed fluid was then demonstrated to harness solar energy and found to be a great boon to direct water vapor generation. [11,12] A solar conversion efficiency of up to ≈70% can be possibly achieved because heat loss to bulk water is mitigated ( Figure 1b). [13,14] However, research on this advancement didn't last because of the development of solar interfacial heating strategy, which is shown in Figure 1c. The concept of interfacial evaporation was first put forth in 2014 by two reports simultaneously, [15,16] and received a surge of attention and interest immediately in the following years. The most prominent feature of solar interfacial evaporation lies in the position of the solar absorber, which is at the interface between saline liquid and the above air. This special configuration not only minimizes heat loss from the solar absorber to bulk water, but also provides significantly more surface area for prompt vapor release. Also, solar radiation is photothermally localized at the surface of solar absorber, giving rise to high surface temperature, which enables fast heat transfer to water. With it, water transported from reservoir can be heated and evaporated immediately to achieve a higher rate of steam generation. In addition to the differences in heating strategies, it should be noted that all the solar stills follow the same evaporation-condensation route for desalination and clean water collection, and to this end, a similar device structure (e.g., solar still with sloping cover) is usually employed.The past few years have witnessed a rapid development of solar-driven interfacial evaporation, a promising technology for low-cost water desalination. As of today, solar-to-steam conversion efficiencies close to 100% or even beyond the limit are becoming increasingly achievable in virtue of unique photothermal materials and structures. Herein, the cutting-edge approaches are summarized, and their mechanisms for photothermal structure architecting are uncovered in order to achieve ultrahigh conversion e...

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Section: Design Principles To Approach 100% Efficiencymentioning

confidence: 52%

Structure Architecting for Salt‐Rejecting Solar Interfacial Desalination to Achieve High‐Performance Evaporation With In Situ Energy Generation

et al. 2020

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“…The bioinspired MXene nanocoatings are incorporated into solar steam‐generation devices and stretchable solar/electric dual‐heaters due to its efficient light‐to‐heat conversion. Additionally, the mechanically deformed MXene structures enable the fabrication of stretchable and wearable heaters dual‐powered by sunlight and electricity, which are reversibly stretched and heated above 100 °C (Figure d) …”

Section: Electrochemical Energy Conversion and Storage Applicationsmentioning

confidence: 99%

MXene‐Based Nanocomposites for Energy Conversion and Storage Applications

Zhang

Tian

et al. 2020

Chemistry A European J

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Novel nanomaterials and advanced nanotechnology continuously push forwardt he rapid development of sustainable energy conversion and storage equipment. An emerging family of two-dimensional transition-metal carbides, nitrides and carbonitrides, also known as MXenes, have attracted increasing attention and in depth investigation. Benefitting from their unique intrinsic properties, MXenes have attracted significant attention and they have been considered as promising candidate materials for the development of environmentally friendly energy resources. Al arge number of studies show that MXenes have great potential in energy conversiona nd storagef ields. Despite of their exceptional properties, MXenes also have some inher-ent characteristics, such as low capacities and unstabler etention performances, which severely hinder their prospect applicationsi ne nergy conversion and storage fields. In this Minireview,t he latest progress on MXenes and their hybrid composites with small molecules, polymers, carbon or metal ions, and their applicationsinenergy conversionand storage fields is highlighted, including their use in different types of batteries, supercapacitors, hydrogen/oxygene volution reactions, electromagnetic interference absorption/shielding and solar steam generation. In addition, the critical challenges and further development prospects of MXene-based materials are also introduced.The ORCID identification number(s) for the author(s) of this articlecan be found under: https://doi.

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“…[ 11 ] The hierarchical biomimetic 2D nanocoating constructed by Ti 3 C 2 T x MXene, reduced graphene oxide, and MoS 2 achieved a broadband light absorption of 93.2% and improved the performance in light‐to‐heat conversion. [ 12 ] A vertically aligned Janus MXene aerogel and 3D MXene/melamine/polyethylene foam were also designed to obtain a high efficiency of 87% and 88.7%, respectively. [ 13 ] Although numerous strategies of MXene‐based materials have been implemented to enhance the solar steam generation efficiency, there are still some issues to be considered and resolved.…”

Section: Introductionmentioning

confidence: 99%

Implementing Hybrid Energy Harvesting in 3D Spherical Evaporator for Solar Steam Generation and Synergic Water Purification

Lü

Fan

et al. 2020

Solar RRL

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Solar‐powered water evaporation provides a promising strategy for eco‐friendly and cost‐effective freshwater production. The exploration of high‐performance photothermal materials and the rational design of evaporation architectures are crucial in promoting solar steam generation efficiency. Herein, multidimensional MXene‐based composites with well‐organized heterojunction nanostructures are proposed as bifunctional photothermal materials. The solar thermal conversion, chemical stability, and photocatalysis degradation properties are enhanced by anchoring Co3O4 nanoparticles on delaminated ultrathin MXene nanosheets, compared with that of Ti3C2 MXene. Based on these advantages, an integrated 3D spherical evaporator is constructed using the Co3O4/Ti3C2 MXene‐based fabric. The evaporator shows its distinct advantages in maximizing the harvest of the hybrid energy from sunlight and the ambient environment, making it ideal for solar steam generation and synergetic water purification. An extremely high evaporation rate of 1.89 kg m−2 h−1 with a corresponding light‐to‐vapor energy conversion efficiency beyond the theoretical limit (130.4%) is achieved. More importantly, while the evaporation rate of the 2D evaporator significantly recedes upon the oblique sunlight irradiation, the evaporation rate of the 3D spherical evaporator is constantly high at different incident angles of sunlight, which satisfies the requirement of practical applications under moving sun.

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Biomimetic MXene Textures with Enhanced Light‐to‐Heat Conversion for Solar Steam Generation and Wearable Thermal Management

Cited by 232 publications

References 65 publications

Structure Architecting for Salt‐Rejecting Solar Interfacial Desalination to Achieve High‐Performance Evaporation With In Situ Energy Generation

Structure Architecting for Salt‐Rejecting Solar Interfacial Desalination to Achieve High‐Performance Evaporation With In Situ Energy Generation

MXene‐Based Nanocomposites for Energy Conversion and Storage Applications

Implementing Hybrid Energy Harvesting in 3D Spherical Evaporator for Solar Steam Generation and Synergic Water Purification

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