首页|Modified and simplified photogalvanic cells: Solar energy harvesting using bromo cresol green dye with different electrodes and cell dimensions
Modified and simplified photogalvanic cells: Solar energy harvesting using bromo cresol green dye with different electrodes and cell dimensions
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NSTL
Elsevier
Photogalvanic cells fabricated of H-shaped glass tube having Platinum (Pt) and saturated calomel electrodes dipped in the electrolyte solution (photosensitizer-reductant-surfactant-alkali) are widely reported. The modification of the electrodes, shapes, and sizes of cells has evaded the attention of researchers in the field for further improvement in the cell performances. Therefore, the present study on the use of various alternative electrodes (combination electrode, cylindrical graphite, rectangular graphite) and alternative cell vessels (Hshaped tube, simple glass tube) has been done with aim of further increasing the electrical output of the photogalvanic cells. Various alternative electrode couples like Pt and Combination electrode, Pt and cylindrical graphite electrode, and Pt and rectangular graphite electrode couples placed in the modified cell vessels have been exploited in present work. The Bromo cresol green dye sensitizer-formaldehyde reductant photogalvanic cells using modified electrode couples dipped in the different types of the glass tube vessels (i.e., blackened Hshaped glass tube, non-blackened simple glass boiling tube) have been studied at an artificial sunlight illumination. For photogalvanic cell fabricated of the rectangular graphite electrode (0.6 cm x 2.3 cm) placed in a simple non-blackened glass boiling tube; the optimum cell performance in terms of the maximum power, shortcircuit current, open-circuit potential, efficiency, and storage capacity is of the order of 1170 mu W, 8000 mu A, 1130 mV, 9.02 %, and 70 min, respectively. It is concluded that the use of readily available cheap graphite and cheap boiling tubes provides an opportunity for simplified fabrication of the photogalvanic cells at reduced cost with the advantage of greatly enhanced electrical output for future studies.
Photogalvanic cellsBromo cresol green sensitizerHCHO reductantModified electrodes and glass vesselsGraphiteFORMIC-ACIDCONVERSIONSTORAGESYSTEMEFFICIENCYREDUCTANTLIGHTBLUEPHOTOSENSITIZERSPERFORMANCE
NSTL
Elsevier
