期刊
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
卷 192, 期 3, 页码 751-769出版社
SPRINGER
DOI: 10.1007/s12010-020-03352-4
关键词
Microflower; Ternary nanocomposite; Microalgae; Biophotovoltaic fuel cell; Green energy
资金
- Council of Scientific and Industrial Research (CSIR), New Delhi-Major Project [01(2997)19/EMR-II]
- Deanship of Scientific Research at King Khalid University [G.R.P.205-40]
- Newton Prize Grant 2017 [IF008-2018]
- Higher Institution Centre of Excellence (HICoE) Fund, Ministry of Education, Malaysia: Air, ocean and land interaction [IOES-2014F]
A facile chemical reduction approach is adopted for the synthesis of iron tungstate (FeWO4)/ceria (CeO2)-decorated reduced graphene oxide (rGO) nanocomposite. Surface morphological studies of rGO/FeWO4/CeO(2)composite reveal the formation of hierarchical FeWO(4)flower-like microstructures on rGO sheets, in which the CeO(2)nanoparticles are decorated over the FeWO(4)microstructures. The distinct anodic peaks observed for the cyclic voltammograms of studied electrodes under light/dark regimes validate the electroactive proteins present in the microalgae. With the cumulative endeavors of three-dimensional FeWO(4)microstructures, phase effect between rGO sheet and FeWO4/CeO2, highly exposed surface area, and light harvesting property of CeO(2)nanoparticles, the relevant rGO/FeWO4/CeO(2)nanocomposite demonstrates high power and stable biophotovoltaic energy generation compared with those of previous reports. Thus, these findings construct a distinct horizon to tailor a ternary nanocomposite with high electrochemical activity for the construction of cost-efficient and environmentally benign fuel cells.
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