O, N co-doped porous activated carbon from polyvinyl chloride for super capacitors and solar cells application

IF 3.8 Q2 CHEMISTRY, PHYSICAL

Chemical Physics Impact Pub Date : 2024-09-05 DOI:10.1016/j.chphi.2024.100721

Pawan Singh Dhapola , Sushant Kumar , Manoj Karakoti , M.Z.A. Yahya , Vinay Deep Punetha , Sandeep Pandey , Faisal Islam Chowdhury , Serguei V. Savilov , Pramod K. Singh

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Abstract

Porous-activated carbons (PAC) show a lot of applications in various fields due to their large surface area and appropriate pore volume, along with decent thermal, chemical, and mechanical stability. Because of these characteristics, PACs are the best choice as an electrode material in supercapacitors (SCs). Due to the utility of PACs, this work reports the transformation of polyvinyl chloride (PVC) into PAC with a surface area of 162.40 m²/g. The synthesized PAC exhibits a maximum specific capacitance (CSP) of 40 F/g at five mV/s in 1-ethyl-3- methylimidazolium thiocyanate ionic liquid (EMIM SCN-IL) electrolyte. Also, no degradation was recorded in the initial C_sp of the fabricated SC, even after 9000 cycles at room temperature. Additionally, using the same PAC in counter electrode dye-sensitized solar cell (DSSC) was also fabricated, and the cell was tested at 1 sun condition, which shows a fill factor of 59.37 % and an efficiency of 1.42 %.

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用于超级电容器和太阳能电池的聚氯乙烯 O、N 共掺多孔活性炭

多孔活性碳（PAC）具有较大的表面积和适当的孔隙率，以及良好的热稳定性、化学稳定性和机械稳定性，因此在各个领域都有广泛的应用。由于这些特性，多孔活性碳是超级电容器（SC）电极材料的最佳选择。鉴于 PAC 的实用性，本研究报告将聚氯乙烯（PVC）转化为表面积为 162.40 m2/g 的 PAC。合成的 PAC 在 1-ethyl-3- methylimidazolium thiocyanate ionic liquid（EMIM SCN-IL）电解液中以 5 mV/s 的速度显示出 40 F/g 的最大比电容（CSP）。此外，即使在室温下循环 9000 次，所制造 SC 的初始 Csp 也没有发生降解。此外，还利用相同的 PAC 制作了反电极染料敏化太阳能电池（DSSC），并在日照条件下对该电池进行了测试，结果显示其填充因子为 59.37%，效率为 1.42%。

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