4.6 Article

Biomass-derived solar-to-thermal materials: promising energy absorbers to convert light to mechanical motion

Journal

JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 8, Pages 4002-4008

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta11199e

Keywords

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Funding

  1. National Key Research and Development Program of China [2016YFD0600806]
  2. National Natural Science Foundation of China [31800494, 31870553]
  3. Young Elite Scientists Sponsorship Program by CAST [2018QNRC001]
  4. Special Project for Double First-Class-Cultivation of Innovative Talents [000/41113102]

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Photothermal materials are very important for converting light energy into mechanical motion but the fabrication of efficient, cheap, easily prepared and green light-to-thermal materials in a convenient and green manner, and at lower cost, remains a challenge. To address this issue, we have now developed an efficient, cheap and easily prepared solar-to-thermal material that can be fabricated from extracts of larch bark. The larch bark extracts (LBE) were readily transformed into a solar-to-thermal material (LBF) by coordination with ferric (Fe3+) ions at room temperature on a large scale (100 g level). LBF showed a stable photothermal effect, with comparable efficiency to the classical solar-to-thermal material, reduced graphene oxide (rGO). As a demonstration of the utility of LBF, it was successfully used to drive a Stirling engine under standard 1 sun irradiation (100 mW cm(-2)). Since Stirling engines have great potential in the energy area and the as-prepared LBF could be prepared on a large scale, this work is expected to provide an efficient solution to clean and sustainable energy.

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