Understanding and Improving Electrochemical Carbon Capture by Supercapacitors

我们目前面临气候变化危机，迫切需要新的和改进的技术来减少温室气体。二氧化碳捕获和储存是一种关键的温室气体减缓和清除策略，尽管目前基于胺的捕获技术的高成本限制了其广泛采用（图2）。该项目将探索一种新兴的节能二氧化碳捕获方法，其中超级电容器储能设备的充电带来了选择性的二氧化碳吸附（图2）。该项目的首要目标是了解和改善使用超级电容器储能设备的电化学二氧化碳捕获。首先，我们将探索一系列具有不同结构的电极材料，以研究对电化学CO2捕获性能的影响。这些研究将通过电化学碳捕获机制的光谱研究来补充，以提供超级电容器电化学二氧化碳捕获的第一个分子水平的理解。这项工作的见解将用于设计和合成具有改进性能的第二代电极材料。除了优化在这些电极中发生的电吸附过程之外，这些第二代电极将寻求解决与这些电极中的电荷和气体的传输相关的挑战。总的来说，这项工作将促进我们对电化学二氧化碳捕获的理解，并将直接导致可以减少温室气体排放的改进材料和设备。

We currently face a climate change crisis and urgently require new and improved technology for greenhouse gas mitigation. Carbon dioxide capture and storage is a key greenhouse gas mitigation and removal strategy, though the high cost of current amine based capture technology limits its widespread adoption (Figure 2). This project will explore an emerging approach for energy efficient carbon dioxide capture, where the charging of a supercapacitor energy storage device brings about selective CO2 adsorption (Figure 2). The overarching aim of this project is to understand and improve electrochemical carbon dioxide capture using supercapacitor energy storage devices. First, we will explore a range of electrode materials with different structures to investigate the resulting impact on electrochemical CO2 capture performance. These studies will be complemented by spectroscopic studies of the electrochemical carbon capture mechanisms to afford the first molecular level understanding of electrochemical carbon dioxide capture by supercapacitors. The insights from this work will then be used to design and synthesis Generation 2 electrode materials with improved performance. In addition to optimising the electrosorption processes taking place in these electrodes, these second generation electrodes will seek to address challenges associated with the transport of charges and gasses in these electrodes. Overall, this work will advance our understanding of electrochemical carbon dioxide capture and will directly lead to improved materials and devices that can mitigate greenhouse gas emissions.