Biessikirski Andrzej, Dworzak Michał, Kaczmarczyk Grzegorz Piotr, Machowski Grzegorz, Ziąbka Magdalena, Kaczmarczyk Agata, Jakóbczyk Joanna, Gotovac-Atlagić Suzana
Faculty of Civil Engineering and Resource Management, AGH University of Krakow, 30-059 Krakow, Poland.
Faculty of Geology, Geophysics, and Environmental Protection, AGH University of Krakow, 30-059 Krakow, Poland.
Materials (Basel). 2025 Apr 10;18(8):1730. doi: 10.3390/ma18081730.
This study presents a comprehensive assessment of the morphology and porosity of microstructured charcoal using a combination of scanning electron microscopy (SEM), computed tomography (CT), and mercury intrusion porosimetry (MIP) methods. SEM analysis revealed a parallel arrangement of tube-like structures interspersed with smaller pores, confirming the presence of fibrous formations. MIP evaluation was conducted in two research series. MIP results identified macropores as the primary contributors to mercury intrusion; however, a minor volume of mercury also intrudes to the mesopores. The total pore area was determined to range between 70.7 and 88.5 m·g, with porosity values of approximately 58.0-62.4% across different experimental series. These variations highlight the heterogeneous nature of the sample. Additionally, the uniformity of the charring process during dry wood distillation was indicated by wall thickness measurements, which ranged narrowly from 5.7 to 25 µm.
本研究结合扫描电子显微镜（SEM）、计算机断层扫描（CT）和压汞孔隙率测定法（MIP），对微结构木炭的形态和孔隙率进行了全面评估。SEM分析显示，管状结构呈平行排列，其间散布着较小的孔隙，证实了纤维状结构的存在。MIP评估在两个研究系列中进行。MIP结果表明，大孔是汞侵入的主要贡献者；然而，也有少量汞侵入到中孔。总孔面积测定范围为70.7至88.5 m·g，不同实验系列的孔隙率值约为58.0 - 62.4%。这些变化突出了样品的异质性。此外，通过壁厚测量表明了干馏过程中炭化过程的均匀性，壁厚范围狭窄，为5.7至25 µm。
