Mourshed Monjur, Rezaei Niya Seyed Mohammad, Shabani Bahman
Mechanical and Automotive Engineering, School of Engineering, RMIT University, Bundoora 3083, Australia.
Department of Mechanical Engineering, Rajshahi University of Engineering and Technology (RUET), Rajshahi 6204, Bangladesh.
ACS Omega. 2023 Mar 9;8(11):10525-10544. doi: 10.1021/acsomega.3c00278. eCollection 2023 Mar 21.
In this work, the novel idea of using a carbon foam to improve slurry electrode systems' electronic and ionic conductivities is introduced and experimentally investigated. Slurries with different mass loadings of 5, 10, and 15 wt % are prepared using steam-activated Norit (from peat) as an active charge carrier with 1 M HSO and distilled water for specifically analyzing the electronic conductivity. A single-pass rectangular flow channel is used in this slurry system, where the channel width is varied from 4.1 to 2.6 cm by changing the current collectors' position and slurry flowing from zero (static) to a maximum of 240 mL·min. Carbon foams with two different thicknesses of 10 and 6.5 mm and two different pore sizes of 10 pores per inch (PPI) and 5 PPI are used for this investigation. It is observed that application of the carbon foam improves slurry conductivity; with a 10 mm thick, 10 PPI carbon foam, maximum increases of 204% in electronic conductivity and 23% in ionic conductivity are observed for water-based and acid-based slurries, respectively.
在这项工作中，引入了使用碳泡沫来提高浆料电极系统的电子和离子电导率这一新颖想法，并进行了实验研究。使用蒸汽活化的诺芮特（由泥炭制成）作为活性电荷载体，与1 M的硫酸和蒸馏水一起制备质量负载分别为5 wt%、10 wt%和15 wt%的浆料，以专门分析电子电导率。在该浆料系统中使用单通道矩形流道，通过改变集流体的位置使通道宽度在4.1至2.6厘米之间变化，浆料流速从零（静态）变化到最大240毫升·分钟。使用两种不同厚度（10毫米和6.5毫米）以及两种不同孔径（每英寸10孔和每英寸5孔）的碳泡沫进行此项研究。观察到碳泡沫的应用提高了浆料的电导率；对于水基和酸基浆料，使用10毫米厚、每英寸10孔的碳泡沫时，电子电导率分别最大提高了204%，离子电导率分别最大提高了23%。
