A bifunctional nanocomposite of hybrid quaternary nanocomposite as electrodes for an integrated Pt-free DSSC powered supercapacitor–photosupercapacitor

IF 5.5 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Carbon Letters Pub Date : 2024-06-23 DOI:10.1007/s42823-024-00762-w

Joselene Suzan Jennifer Patrick, Niranjana Subrayapillai Ramakrishna, Muthupandi Sankar, Dinesh Ayyar, Madhavan Joseph, Victor Antony Raj Moses, Malarkodi Ammavasi, Manikandan Ayyar

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Abstract

Graphene-based solar cells and supercapacitors integrated into photosupercapacitors represent a pioneering advancement. These devices leverage the exceptional properties of graphene, such as high conductivity and large surface area, to enhance both solar energy conversion and energy storage. The integration of these technologies into photosupercapacitors creates a multifunctional device capable of harnessing solar energy and storing it efficiently. This innovative approach holds promise for sustainable and versatile energy solutions, marking a significant step towards developing efficient and compact energy storage systems. This integration addresses the intermittent nature of solar power generation by providing a continuous and reliable power supply through energy storage. Supercapacitors are one such energy device with a high-power density and excellent specific capacitance which is integrated will a dye-sensitized solar cell (DSSC) comprising a single system of photosupercapacitor. A novel electrode material of NiO/CuO/Co₃O₄/rGO was synthesized which serves as the Pt-free counter electrode of DSSC and working or storage electrode of supercapacitor later was used as the intermediate electrode and storage electrode of a photosupercapacitor. The integrated photosupercapacitor device had a photovoltage of 0.81 V with areal-specific capacitance, energy and power density of 190.12 mF cm⁻², 17.325 μW h cm⁻² and 0.162 mW cm⁻², respectively. The device self-discharged in 385 s with an overall conversion efficiency of 2.17%, resulting in a self-charged energy device.

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一种用作无铂 DSSC 供电超级电容器-光电超级电容器集成电极的双功能混合季纳米复合材料

基于石墨烯的太阳能电池和超级电容器与光电超级电容器的集成是一项开创性的进步。这些设备利用石墨烯的特殊性能，如高导电性和大表面积，提高了太阳能转换和能量存储能力。将这些技术集成到光电超级电容器中，可以创造出一种能够利用太阳能并有效储存太阳能的多功能装置。这种创新方法有望成为可持续的多功能能源解决方案，标志着向开发高效、紧凑型储能系统迈出了重要一步。这种集成通过储能提供持续可靠的电力供应，解决了太阳能发电的间歇性问题。超级电容器就是这样一种具有高功率密度和出色比电容的能源装置，它与染料敏化太阳能电池（DSSC）集成在一起，构成了一个单一的光电超级电容器系统。研究人员合成了一种新型的 NiO/CuO/Co3O4/rGO 电极材料，这种材料可用作 DSSC 的无铂对电极和超级电容器的工作电极或存储电极，之后又被用作光upercapacitor 的中间电极和存储电极。该集成光超级电容器装置的光电压为 0.81 V，等面积电容、能量和功率密度分别为 190.12 mF cm-2、17.325 μW h cm-2 和 0.162 mW cm-2。该装置的自放电时间为 385 秒，整体转换效率为 2.17%，是一种自充电能源装置。

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来源期刊

Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.30

自引率

20.00%

发文量

118

期刊介绍： Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.