用或铜浸颗粒状活性炭可以提高微生物电合成的性能
Igor Vassilev1, Hui Yao1, Sadaf Shakeel1
1Faculty of Engineering and Natural Sciences, Tampere University, P.O. Box 541, FI-33104, Finland.
Bioresource technology
|December 1, 2024
概括
用铜或浸颗粒活性炭 (GAC) 阴极显著提高微生物电合成 (MES) 的性能. 这种增强导致了更高的酸盐生产率,展示了金属浸的GAC在改善二氧化碳转化方面的潜力.
科学领域:
- 电化学 电化学 电化学
- 微生物学 微生物学
- 材料科学 材料科学 材料科学
背景情况:
- 微生物电合成 (MES) 使用可再生电力将二氧化碳转化为有价值产品.
- 阴极电极材料在MES中至关重要,影响减少等价物和生物膜形成.
- 颗粒活性炭 (GAC) 是MES应用的潜在阴极材料.
研究的目的:
- 为了研究金属浸GAC作为微生物电合成中的阴极材料的影响.
- 为了评估使用铜或浸的GAC提高MES的性能.
- 为了确定金属负荷和氧化状态对MES效率的影响.
主要方法:
- GAC被浸了5%的铜或.
- 进行了无机电化学测试,以测量电流密度.
- 进行了MES实验,使用金属浸的GAC作为阴极来测量酸盐生产率.
主要成果:
- 与未浸的GAC (高达1.1 mA cm−3) 相比,金属浸的GAC阴极在非生物测试中实现了明显更高的电流密度 (高达5.6 mA cm−3).
- 在MES中,与对照组相比,金属浸的GAC增强了酸盐生产率,达到241 mg/L d−1.
- MES性能主要受到金属催化剂在GAC上的质量百分比的影响,而不是其氧化状态.
结论:
- 用铜和等金属浸GAC是一种有前途的策略,可以提高MES的性能.
- 用金属浸的GAC阴极可以显著提高二氧化碳转化效率和产品形成率.
- 这种方法有可能优化微生物电合成过程,以实现可持续的化学生产.
更多相关视频
08:13Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
11.8K
10:44Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
9.9K
相关概念视频
01:03Precipitation Gravimetry
5.3K
Precipitation gravimetry is based on converting an analyte into a sparingly soluble precipitate, which is separated by filtration and weighed. An ideal precipitate should be pure, insoluble, of known composition, and easily filtered from the reaction mixture.
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
In determining nickel by gravimetric analysis, a precipitant of ethanolic dimethylglyoxime is added to a hot nickel salt solution. This is quickly followed by the dropwise addition of dilute ammonia solution until precipitation occurs. A...
5.3K
01:08Electrodeposition
603
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
Electrodeposition can...
603