Gopinathan, P. and Khan, Afaq Ahmad and Singh, Vivek and Santosh, M. S. and Karmakar, Amit and Asif, Md and Kumar, Om Prakash and Banerjee , Pradip K. (2025) Photothermal conversion and geochemical characterization of sulfur-rich lignite for non-conventional energy applications. Scientific Reports.
Full text not available from this repository.Abstract
Lignite has emerged as a critical material in contemporary energy portfolios, particularly in electricity generation. However, this work explores lignite’s potential beyond conventional uses, exploring on its energy conversion applications. In a pioneering move, lignite samples have been directly utilized as materials for photothermal conversion applications, along with a description of their geochemical features, such as sulfur compositions, forms, and microscopic characteristics. Among the twenty lignite samples that were geologically studied, two sulfur-rich samples (CS-1 and CS-2) were chosen to explore their photothermal conversion performance. The powder-XRD diffraction patterns of CS-1 and CS-2 reveal the presence of the hexagonal phase of carbon C1 with kaolinite (Al2Si2O5(OH)4). Their XPS spectra indicate that both organic and metal-bonded sulfide moieties are present in the lignite samples. CS-1 and CS-2 were implemented under 1 Sun irradiation, and it was found that CS-2 exhibits superior light-absorbing properties, resulting in enhanced water evaporation rates. In addition, the photothermal imaging also shows a temperature increase to 58.2 °C within 10 min for lignite-coated membranes, compared to 31 °C for the blank under similar conditions. These findings can be leveraged to explore lignite’s untapped potential in various technological domains, propelling the global transition towards cleaner energy solutions.
| Item Type: | Article |
|---|---|
| Subjects: | Coal Characterisation |
| Divisions: | UNSPECIFIED |
| Depositing User: | Mr. B. R. Panduranga |
| Date Deposited: | 30 Apr 2025 06:41 |
| Last Modified: | 30 Apr 2025 06:41 |
| URI: | http://cimfr.csircentral.net/id/eprint/2788 |
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