The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
Ag-graphene/PEG composite phase change materials for enhancing solar-thermal energy conversion and storage capacity
Abstract
Abstract In view of the excellent characteristic of thermal energy storage, phase change materials (PCMs) are of great significance for improving the efficiency of solar thermal energy utilization. However, the direct thermal effect of visible-light (40% of solar radiation) is very low. In order to improve the capabilities of visible-light absorption and photothermal conversion, we reported novel and efficient sunlight-driven PCMs based on polyethylene glycol (PEG) supported by Ag nanoparticle-functionalized graphene nanosheets (Ag–GNS). The multi-folded layered structure provides Ag–GNS a large surface area to support PEG for achieving the shape stability before and after phase transition. Meanwhile, based on the local surface plasma resonance effect of Ag, Ag has high visible light selective absorption and infrared reflectance, which can give Ag–GNS enhanced light absorption capacity and reduced thermal radiation. So Ag–GNS/PEG can harvest sunlight and convert light to thermal energy with significantly higher efficiency (η = 88.7–92.0%). Moreover, Ag–GNS/PEG composites exhibit enhanced thermal conductivities (49.5–95.3%), high energy storage densities (>166.1 J/g), high thermal energy storage/release rates and outstanding form-stable properties. Therefore, this novel sunlight-driven composite can be potentially used for clean and efficient utilization of solar energy.
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Cites
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Cited by
Carbon-Based Composite Phase Change Materials for Thermal Energy Storage, Transfer, and Conversion
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MXene aerogel-based phase change materials toward solar energy conversion
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Metadata
- Authors
- Zhang, Y., Wang, J., Qiu, J., Jin, X., Umair, M. M., Lu, R., Zhang, S., & Tang, B.
- Venue
- Applied Energy
- Publisher
- Elsevier BV
- Published
- 2019-03
- Volume
- 237
- Pages
- 83-90
- ISSN
- 0306-2619 (ISSN-L)
- OpenAlex
- W2910920333
- Cited by
- 388
- References
- 34
- FWCI
- 29.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- Zhang, Y., Wang, J., Qiu, J., Jin, X., Umair, M. M., Lu, R., Zhang, S., & Tang, B. (2019). Ag-graphene/PEG composite phase change materials for enhancing solar-thermal energy conversion and storage capacity. Applied Energy. https://doi.org/10.1016/j.apenergy.2018.12.075
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