NSERC-DFG SUSTAIN: Plasma-electrification of chemical produce – towards a green circular industry with net-zero carbon output and sustainable processing (PLANET)

NSERC-DFG SUSTAIN：化学产品的等离子电气化——迈向净零碳输出和可持续加工的绿色循环产业（PLANET）

• 批准号: 534102992
• 负责人: Professor Dr.-Ing. Thomas Mussenbrock
• 金额: --
• 依托单位: Natural Sciences and Engineering Research Council of Canada
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/534102992?language=en
• 关键词: NSERC; DFG; SUSTAIN; Plasma; electrification

PLANET identifies a novel approach for non-thermal plasma-based dissociation of molecules as a means to reduce greenhouse gas emissions as well as CO2 content in the atmosphere. The aim is to find innovative solutions for the climate crisis. Via steered vibrational excitation we will split CO2 into oxygen (O2) and carbon monoxide (CO), which can be further used to e.g., produce fuels to reach net-zero carbon output. Vibrational excitation up to the point of molecule dissociation - known as vibrational ladder climbing - is key to efficient plasma-based dissociation of CO2. Vibrational ladder climbing is maximized by collisions with low-energy electrons. We use a novel time-based control of the electron energy to generate these electrons. Since the required electric fields are too low to sustain a plasma at atmospheric pressure, PLANET’s approach is to use a combination of voltage waveform tailoring (VWT) and high voltage ns-pulses. The pulses achieve breakdown and VWT allows us to control the non-thermal energy-transfer to the electrons in the time domain and to sustain the discharge with an electric field low enough to selectively excite the vibrational distribution. Using complementary hybrid simulation and novel experimental ultrafast diagnostic methods that observe the excitation and de-excitation on a non-adiabatic timescale, we will gain the necessary insight into the fundamental plasma chemistry. The three major research challenges of plasma-based CO2 reforming addressed in PLANET are i) to move beyond state-of-the-art in electric field tailoring, ii) to model the complex plasma chemistry by developing new hybrid approaches, and iii) to analyze the CO2 dissociation pathways, by resolving the non-adiabatic dynamics of the population of the vibrational energy states with mid-IR ultrafast spectroscopy.

PLANET 确定了一种基于非热等离子体的分子解离的新方法，作为减少温室气体排放以及大气中二氧化碳含量的一种手段。其目的是寻找应对气候危机的创新解决方案。通过引导振动激励，我们将二氧化碳分解为氧气 (O2) 和一氧化碳 (CO)，它们可进一步用于生产燃料等，以实现净零碳输出。振动激发直至分子解离点（称为振动阶梯攀爬）是基于等离子体的 CO2 高效解离的关键。通过与低能电子的碰撞使振动梯攀爬最大化。我们使用一种新颖的基于时间的电子能量控制来产生这些电子。由于所需的电场太低，无法在大气压下维持等离子体，因此 PLANET 的方法是结合使用电压波形定制 (VWT) 和高压 ns 脉冲。脉冲实现击穿，VWT 使我们能够在时域中控制向电子的非热能转移，并用足够低的电场维持放电，以选择性地激发振动分布。使用互补混合模拟和新颖的实验超快诊断方法来观察非绝热时间尺度上的激发和去激发，我们将获得对基本等离子体化学的必要了解。 PLANET 中解决的基于等离子体的 CO2 重整的三个主要研究挑战是 i) 超越电场定制的最先进水平，ii) 通过开发新的混合方法来模拟复杂的等离子体化学，以及 iii) 通过使用中红外超快光谱解析振动能态群体的非绝热动力学来分析 CO2 解离途径。