Photogalvanic cell: A new approach for green and sustainable chemistry

Genwa, K. R.; Genwa, Mahaveer

doi:10.1016/j.solmat.2007.10.010

Cited by 45 publications

(24 citation statements)

References 17 publications

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“…Recently, this field of research has been contributed to by Genwa and Genwa (2008), Genwa and Khatri (2006), Madhwani et al (2007), Ameta et al (2007), Kumari et al (2009), Pokhrel andNagaraja (2009), Gangotri and Gangotri (2009a, b) and Gangotri and Bhimwal (2010a, b). They have used different reductants, photosensitizers and surfactants to investigate interesting photogalvanic systems to enhance conversion efficiency and storage together with the effect to reduce the cost of construction and to ensure commercial viability.…”

Section: Introductionmentioning

confidence: 99%

Studies of mixed reductant systems with Azur A as photosensitizer for solar energy conversion and storage in photogalvanic cells

Gangotri

Indora

Bhimwal

2011

International Journal of Sustainable Energy

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Purpose: The role of mixed reductant systems in photogalvanic cells was studied in a photogalvanic system containing Azur A as photosensitizer, EDTA as reductant, which was mixed with dextrose, NTA and oxalic acid, respectively, for increasing the conversion efficiency and storage capacity of photogalvanic cells.Design/methodology/approach: This research presents an interesting photogalvanic system for improvement of conversion efficiency and storage capacity to reduce the cost of construction and ensure commercial viability.Findings: Observed values of photopotential and photocurrent for EDTA + dextrose-Azur A system are 778.0 mV, 55.0 μA, for EDTA + NTA-Azur A system are 830.0 mV, 292.0 μA and for EDTA + oxalic acid-Azur A system are 810.0 mV, 210.0 μA, respectively.Originality/value: The observed conversion efficiencies in these systems are 0.1045%, 0.9830% and 0.9092%, respectively, whereas storage capacities are 115.0 min., 290.0 min. and 86.0 min., respectively. It shows a higher performance of cells to gain its commercial viability.

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Section: Introductionmentioning

confidence: 99%

Studies of mixed reductant systems with Azur A as photosensitizer for solar energy conversion and storage in photogalvanic cells

Gangotri

Indora

Bhimwal

2011

International Journal of Sustainable Energy

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“…Ameta et al 10 Khamesara et al 11 Pramila and Gangotri 12 , Gangotri and Gangotri 13 , and Genwa and genwa 14 have used miceller species with different photosensitizer and reductant in photogalvanic system for solar energy conversion and storage. 24 and Gangotri and Solanki 25 have developed some intrested photogalvanic cells with reasonable electrical output for solar energy conversion and storage.…”

Section: Introductionmentioning

confidence: 99%

Studies of the Anionic Micelles Effect on Photogalvanic Cells for Solar Energy Conversion and Storage in Sodium Lauryl Sulphate-Safranine-D-Xylose System

Solanki¹,

Gangotri²

2011

Linköping Electronic Conference Proceedings

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Abstract:The Sodium lauryl sulphate (NaLS) has been used as anionic micelle species, Safranine as photosensitizer and D-Xylose as electron donor for the enhancement of the electrical output and performance (storage capacity) of the photogalvanic cell with reduce the cost of construction for commercial viability. The photopotential and photocurrent generated were 893.0 mV and 207.0 µA, respectively. The observed conversion efficiency and the fill factor were 0.6800% and 0.3233, respectively at the power point of the cell. The photogalvanic cell can be used for 98.0 minutes in the dark.The effect of different parameters like concentration of micelles; photosensitizer and electron donor, variation of pH, light intensity and diffusion path length were observed. A current -voltage (i-V) characteristics of the photogalvanic cell was studied experimentally and a mechanism has also been proposed for the generation of the photocurrent. All observed results of the system were lower in absence of the micelles species.

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“…Recently, Gangotri and Pramilla [26], Genwa and Genwa [27], Genwa et al [28], Gangotri and Gangotri [29], Gangotri et al [30], and Gangotri and Solanki [31] have developed some interesting photogalvanic cells with reasonable electrical output. Different photosensitizers, reductants and surfactants have been used in these photogalvanic cells but the combination of thymol blue (ThB)-mannose-SLS has not been investigated.…”

Section: Introductionmentioning

confidence: 99%

The Role of Surfactants in Photogalvanics: Solar Energy Conversion and Storage in the Sodium Lauryl Sulphate–Thymol Blue–Mannose System

Solanki

Gangotri

2011

Arab J Sci Eng

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Sodium lauryl sulphate (SLS) was used as a surfactant, thymol blue as a photosensitizer and mannose as a reductant in a photogalvanic cell to improve the conversion efficiency and storage capacity of such cells to achieve commercial viability. The photopotential and photocurrent generated were 635.0 mV and 100.0 µA, respectively. The effect of various parameters including concentration of photosensitizer, reductant and surfactant, pH and diffusion length on the cell properties was observed. The observed conversion efficiency and the maximum power of the cell were 0.23% and 24.60 µW, respectively. The fill factor was 0.25 at the power point of the cell. The photogalvanic cell can be used for 37 minutes in the dark following illumination for 120 minutes. The current-voltage characteristics of the photogalvanic cell were studied experimentally. All of the results observed for the system were lower in absence of surfactant. The absorption spectra of the systems with and without surfactant were also studied.

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Photogalvanic cell: A new approach for green and sustainable chemistry

Cited by 45 publications

References 17 publications

Studies of mixed reductant systems with Azur A as photosensitizer for solar energy conversion and storage in photogalvanic cells

Studies of mixed reductant systems with Azur A as photosensitizer for solar energy conversion and storage in photogalvanic cells

Studies of the Anionic Micelles Effect on Photogalvanic Cells for Solar Energy Conversion and Storage in Sodium Lauryl Sulphate-Safranine-D-Xylose System

The Role of Surfactants in Photogalvanics: Solar Energy Conversion and Storage in the Sodium Lauryl Sulphate–Thymol Blue–Mannose System

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