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Enabling storage and utilization of low-carbon electricity: power to formic acid
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-1-8 , DOI: 10.1039/d0ee03011b Sudipta Chatterjee 1, 2, 3, 4, 5 , Indranil Dutta 1, 2, 3, 4, 5 , Yanwei Lum 6, 7 , Zhiping Lai 1, 2, 3, 4, 8 , Kuo-Wei Huang 1, 2, 3, 4, 5
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-1-8 , DOI: 10.1039/d0ee03011b Sudipta Chatterjee 1, 2, 3, 4, 5 , Indranil Dutta 1, 2, 3, 4, 5 , Yanwei Lum 6, 7 , Zhiping Lai 1, 2, 3, 4, 8 , Kuo-Wei Huang 1, 2, 3, 4, 5
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Formic acid has been proposed as a hydrogen energy carrier because of its many desirable properties, such as low toxicity and flammability, and a high volumetric hydrogen storage capacity of 53 g H2 L−1 under ambient conditions. Compared to liquid hydrogen, formic acid is thus more convenient and safer to store and transport. Converting formic acid to power has been demonstrated in direct formic acid fuel cells and in dehydrogenation reactions to supply hydrogen for polymer electrolyte membrane fuel cells. However, to enable a complete cycle for the storage and utilization of low-carbon or carbon-free electricity, processes for the hydrogenation and electrochemical reduction of carbon dioxide (CO2) to formic acid, namely power to formic acid, are needed. In this review, representative homogenous and heterogeneous catalysts for CO2 hydrogenation will be summarized. Apart from catalytic systems for CO2 hydrogenation, a wide range of catalysts, electrodes, and reactor systems for the electrochemical CO2 reduction reaction (eCO2RR) will be discussed. An analysis for practical applications from the engineering viewpoint will be provided with concluding remarks and an outlook for future challenges and R&D directions.
中文翻译：
实现低碳电力的存储和利用：甲酸的动力
由于甲酸具有许多期望的特性，例如低毒性和可燃性，以及在环境条件下的53 g H 2 L -1的高体积氢存储容量，已经提出了甲酸作为氢能载体。因此，与液态氢相比，甲酸更方便，更安全地存储和运输。在直接甲酸燃料电池和脱氢反应中已经证明了将甲酸转化为动力，以为聚合物电解质膜燃料电池提供氢。但是，为了使低碳或无碳电力的存储和利用完整的循环成为可能，需要对二氧化碳（CO 2）到甲酸，即需要力量到甲酸。在这篇综述中，将概述用于CO 2加氢的代表性均相和非均相催化剂。除了用于CO 2加氢的催化系统之外，还将讨论用于电化学CO 2还原反应（eCO 2 RR）的各种各样的催化剂，电极和反应器系统。将从工程学角度对实际应用进行分析，并提供结语以及对未来挑战和研发方向的展望。
更新日期：2021-02-17
中文翻译：
实现低碳电力的存储和利用：甲酸的动力
由于甲酸具有许多期望的特性，例如低毒性和可燃性，以及在环境条件下的53 g H 2 L -1的高体积氢存储容量，已经提出了甲酸作为氢能载体。因此，与液态氢相比，甲酸更方便，更安全地存储和运输。在直接甲酸燃料电池和脱氢反应中已经证明了将甲酸转化为动力，以为聚合物电解质膜燃料电池提供氢。但是，为了使低碳或无碳电力的存储和利用完整的循环成为可能，需要对二氧化碳（CO 2）到甲酸，即需要力量到甲酸。在这篇综述中，将概述用于CO 2加氢的代表性均相和非均相催化剂。除了用于CO 2加氢的催化系统之外，还将讨论用于电化学CO 2还原反应（eCO 2 RR）的各种各样的催化剂，电极和反应器系统。将从工程学角度对实际应用进行分析，并提供结语以及对未来挑战和研发方向的展望。
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