Thermodynamic Analysis of the Efficiency of Photoelectrochemical CO2 Reduction to Ethanol
Thermodynamic Analysis of the Efficiency of Photoelectrochemical CO2 Reduction to Ethanol
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DOI：
10.1016/j.egypro.2019.01.204
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发表时间：
2019-02
期刊：
影响因子：
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通讯作者：
Evangelos Kalamaras;M. Maroto-Valer;J. Andresen;Huizhi Wang;J. Xuan
中科院分区：
文献类型：
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作者：
Evangelos Kalamaras;M. Maroto-Valer;J. Andresen;Huizhi Wang;J. Xuan
在过去几十年中，长期的化石燃料短缺和全球对能源日益增长的需求激发了人们对开发替代和“绿色”燃料生产方法的兴趣。产生太阳能燃料的一种有前途的方法是光催化或光电化学（PEC）CO2还原。尽管进行了各种研究努力以提高PEC装置的效率和稳定性，但由于缺乏对反应机制和潜在限制因素的理解，许多问题仍然没有得到充分回答。在这项研究中，我们阐述了单结或双结光吸收材料的热力学。最后，研究了以甲酸盐为中间产物的两步太阳能驱动CO2转化为乙醇的效率极限。
Over the last decades, long-term fossil fuel shortage and growing global demand for energy ignited an interest in developing alternative and “green” approaches for fuel production. One promising way to generate solar fuels is photocatalytic or photoelectrochemical (PEC) CO2reduction. Although various research efforts were undertaken to improve the efficiency and stability of PEC devices, many questions remain that have not been adequately answered due to lack of understanding of the reaction mechanisms and underlying limiting factors. In this study, we illustrate the thermodynamics of single or double-junction photo-absorbing materials. Finally, this research work investigated the efficiency limits of solar-driven CO2conversion into ethanol as a two-step process with formate as intermediate.