Electrochemical Capture of CO2 and Instant Conversion into Syngas: A Combined Mechanistic and Engineering Approach

黄1401280南卡罗来纳大学哥伦比亚分校稳定二氧化碳浓度被认为是减轻对气候不利影响的最佳近期解决方案之一。对捕获的二氧化碳进行地质储存的另一种吸引人的选择是将二氧化碳再循环成燃料形式。这项技术发展的意义是巨大的：它重新平衡了生态系统中的碳循环，从而实现了可持续能源的未来。有了未来的可再生能源作为转换的输入，从二氧化碳中制造合成燃料可以是一个碳中和甚至碳负的过程。该研究的目标是通过获取二氧化碳电化学捕集和二氧化碳转化为合成燃料的化学基础科学和工程知识，推进创新的捕集和转化一体化二氧化碳反应器的工程开发。提出的统一CO2反应器由两个新开发的用于CO2/H2O捕获的电化学膜和一个用于将CO2立即转化为合成气的固体氧化物电解池组成。这样一个集成系统具有巨大的节能和成本效益潜力，为实现碳平衡生态系统提供了创新和可行的解决方案。研究重点是阐明离子和电子的平行输运机制，推动多相系统中多离子/电子的快速输运研究。所获得的基础知识将有助于设计更有效和复杂的混合离子/电子系统。此外，参数研究和计算分析补充了基本的理解，为系统设计和配置提供了工程见解，并有可能为这种新型统一CO2反应器的商业化奠定基础。将通过南卡罗莱纳大学的年度“爱迪生系列讲座”计划向公众宣传二氧化碳捕获和转化技术领域正在取得的科学进展的重要性和潜在影响。与历史悠久的黑人学院本尼迪克特学院（Benedict College）将在南卡罗莱纳大学（University of South Carolina）举办能源研究主题的夏季联合研讨会，以促进少数族裔和代表性不足的学生的教育和劳动力发展。通过向当地ASME和ECS学生分会提供系列研讨会，将重点介绍和吸引本科生参与研究。

Huang1401280University of South Carolina at ColumbiaStabilizing CO2 concentrations is conceived to be one of the best near term solutions to mitigating the adverse effects on climate. An appealing alternative to geologic storage of captured CO2 is to have CO2 recycled back to the fuel form. The significance of this technological development is enormous: it rebalances the carbon cycle in the ecosystem, and therefore enables a sustainable energy future. With future renewable energy as the input to the conversion, the making of synthetic fuels from CO2 can be a carbon-neutral or even carbon-negative process. The objective of the proposed research is to advance the engineering development of an innovative capture and conversion all-in-one CO2 reactor by acquiring foundational science and engineering knowledge on electrochemical capture of CO2 and conversion chemistry of CO2 into synthetic fuels. The unified CO2 reactor proposed consists of two newly developed electrochemical membranes for CO2/H2O capture and a solid-oxide electrolysis cell for instant CO2 conversion into syngas. Such an integrated system has great potential to be energy efficient and cost effective, offering an innovative and viable solution to the realization of a carbon balanced ecosystem. In a particular the research will focus on the elucidation of the parallel ionic and electronic transport mechanisms, advancing the science of fast multi-ionic/electronic transport in heterogeneous systems. The foundational knowledge gained will help design more efficient and complex mixed ionic/electronic systems. In addition, the parametric study and computational analysis complement the fundamental understanding, providing engineering insights for the system design and configuration, and potentially laying the foundation for commercialization of this novel unified CO2 reactor. The importance and potential impact of ongoing scientific advances in the area of CO2 capture and conversion technologies will be disseminated to the general public via an annual "Edison Lecture Series" program at the University of South Carolina. A joint summer workshop on energy research topic with Benedict College, a historically black college, will be held in the University of South Carolina to promote education and workforce development for minority and underrepresented students. A focused approach to introducing and engaging undergraduate students in research will be implemented by delivering seminar series to the local ASME and ECS student chapters.