The decomposition of carbon dioxide (CO₂) is a primary step towards its utilization in chemical synthesis processes that can help mitigate atmospheric CO₂ emissions and fulfill the need for fuels and chemicals. The synergistic utilization of solar and electrical energy is investigated in a solar - gliding arc (glidarc) plasma system for the decomposition of CO₂. The approach exploits the highly reactive species and radicals present in gliding-arc plasmas (a form of nonequilibrium electrical discharge) and the absorption of solar energy by the plasma towards enhancing reaction kinetics involved in gas-phase atmospheric pressure CO₂ decomposition. Solar-glidarc plasma processing is investigated using undiluted CO₂ and mixtures of CO₂ with water vapor (CO₂ saturated with water vapor), nitrogen, and methane. A two-phase Design Of Experiments (DOE) approach is followed to guide the investigation and analyze experimental results: phase 1 to identify the significance of the main parameters of the solar-glidarc reactor operation, and phase 2 to evaluate the optimal operating conditions towards maximizing CO₂ decomposition. The results reveal that the CO₂:CH₄ (7:1) mixture yielded the maximum CO₂ conversion of 49%, followed by 44% by the CO₂-N₂ (1:7) gas mixture. In contrast, the undiluted CO₂ and CO₂-H₂O experiments show maximum CO₂ conversions of 5% and 3%, respectively, and energy efficiencies of 15% and 12%, respectively. The optimal performance of the solar-glidarc reactor is attained with the CO₂-N₂ gas mixture, reaching a maximum energy efficiency of 70% and CO₂ conversion of 44%.

二氧化碳（CO ₂）的分解是迈向化学合成过程的第一步，这可以帮助减轻大气中的CO ₂排放并满足对燃料和化学物质的需求。在太阳能滑行电弧（glidarc）等离子体系统中研究了太阳能和电能的协同利用，以分解CO ₂。该方法利用了滑弧等离子体中存在的高反应性物质和自由基（一种非平衡放电形式）以及等离子体对太阳能的吸收，从而增强了涉及气相大气压CO ₂分解的反应动力学。使用未稀释的CO ₂研究了太阳胶束等离子体处理以及CO ₂与水蒸气（CO ₂充满水蒸气），氮气和甲烷的混合物。遵循两阶段实验设计（DOE）方法来指导研究和分析实验结果：第1阶段用于确定太阳能滑行反应堆运行的主要参数的重要性，第2阶段是评估朝着最佳状态运行的最佳运行条件最大化CO ₂分解。结果表明，CO ₂：CH ₄（7：1）混合物产生的最大CO ₂转化率为49％，其次是CO ₂ -N ₂（1：7）气体混合物的44％。相反，未稀释的CO ₂和CO ₂-H ₂ O实验显示最大的CO ₂转化率分别为5％和3％，能量效率分别为15％和12％。用CO ₂ -N ₂气体混合物可以达到太阳能-glidarc反应器的最佳性能，最大能量效率为70％，CO ₂转化率为44％。