Hengsbach R, Bychko I, Schwarz S, Strizhak P, Fahmi A
Faculty of Technology and Bionics, Rhine-Waal University of Applied Science, Marie-Curie-Straße 1, 47533, Kleve, Germany.
L. V. Pisarzhevskii Institute of Physical Chemistry, National Academy of Sciences of Ukraine, 31 Prosp. Nauky, Kyiv, 03028, Ukraine.
Macromol Rapid Commun. 2025 Jul;46(14):e2500050. doi: 10.1002/marc.202500050. Epub 2025 May 27.
Bifunctional nanofibers for CO capture and conversion can be fabricated by electrospinning. Using advanced methods like side-by-side electrospinning enables the integration of multiple independent functionalities. The combination of poly(ethylene oxide) (PEO) modified with poly(ethylene imine) (PEI) for CO capture and PEO loaded with copper nanoparticles (CuNP) for CO catalysis results in bifunctional fibers that can be synthesized using water as a green solvent. The fibers are characterized using scanning electron microscopy, thermogravimetric analysis, and differential scanning calorimetry. The bifunctional properties of fibers are illustrated by gas adsorption and catalytic experiments. The production via side-by-side electrospinning leads to materials with orthogonal properties that can be adjusted and optimized independently. The introduced imine groups capture CO, which can be directly converted to methanol by hydrogenation at CuNP at a low temperature of 150 °C.
用于二氧化碳捕获与转化的双功能纳米纤维可通过静电纺丝制备。采用诸如并列静电纺丝等先进方法能够实现多种独立功能的整合。用聚乙烯亚胺（PEI）改性的聚环氧乙烷（PEO）用于二氧化碳捕获，负载铜纳米颗粒（CuNP）的PEO用于二氧化碳催化，二者结合可得到双功能纤维，且该双功能纤维能够以水作为绿色溶剂合成。通过扫描电子显微镜、热重分析和差示扫描量热法对纤维进行表征。通过气体吸附和催化实验来说明纤维的双功能特性。通过并列静电纺丝生产出的材料具有正交特性，可独立进行调整和优化。引入的亚胺基团捕获二氧化碳，在150℃的低温下，二氧化碳可在CuNP处通过氢化直接转化为甲醇。
