电化学CO2转换的催化剂:材料可持续性视角
Chenyang Wang1, Hung Lai2, Hugh Warkentin2
1The Robert M. Buchan Department of Mining, Queen's University, Kingston, ON Canada.
概括
评估电化学减少二氧化碳 (eCO2R) 的催化剂揭示了重要的供应风险和环境影响. 与基催化剂相比,基催化剂具有更好的耐用性和更低的可持续性问题.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 环境科学 环境科学
背景情况:
- 电化学减少二氧化碳 (eCO2R) 是缓解气候变化的关键技术.
- 催化剂的选择对eCO2R的效率,选择性和可持续性产生了重大影响.
- 评估催化剂供应链风险和环境足迹对于可持续实施至关重要.
研究的目的:
- 对eCO2R催化剂进行简化供应风险和生命周期环境影响评估.
- 为了比较各种金属基催化剂的可持续性,用于生产甲酸盐,二氧化碳,乙烯和乙醇.
- 确定具有较低供应风险和环境负担的催化剂.
主要方法:
- 超过68个eCO2R案例研究的比较分析.
- 对不同金属基催化剂的供应风险评估.
- 催化剂的生命周期环境影响评估.
- 催化剂稳定性和可持续性指标之间的相关性分析.
主要成果:
- 用于酸盐生产的木基催化剂具有较高的供应风险和环境负担.
- 锡基催化剂表现出优越的耐用性和较低的可持续性问题.
- 基于铜的催化剂根据目标产品 (乙烯与乙醇) 呈现不同的供应风险.
- 增强的催化剂稳定性大大降低了供应风险和环境影响.
结论:
- 催化剂稳定性是缓解eCO2R供应风险和环境影响的关键因素.
- 迫切需要标准化的方法来评估催化剂稳定性.
- 跨部门的合作对于整合eCO2R催化剂生态设计的关键性和可持续性评估至关重要.
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