@article{ART003273895},
author={Ma Jun and Zhu Shen and Wu Xueli and He Xun and Wang Weiyi and Li Juan and Yang Cheng and Liu Yanli and Tu Chuanjun},
title={Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={5},
pages={2319-2334},
doi={10.1007/s42823-025-00926-2}
TY - JOUR
AU - Ma Jun
AU - Zhu Shen
AU - Wu Xueli
AU - He Xun
AU - Wang Weiyi
AU - Li Juan
AU - Yang Cheng
AU - Liu Yanli
AU - Tu Chuanjun
TI - Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis
JO - Carbon Letters
PY - 2025
VL - 35
IS - 5
PB - Korean Carbon Society
SP - 2319
EP - 2334
SN - 1976-4251
AB - The constituents of coal tar pitch (CTP) significantly impact the wettability of calcined coke (CC) and the performance of prebaked anodes (PA) used in aluminum electrolysis. However, balancing wettability and carbon residue within CTP remains a central challenge in material applications. In addition, limited pore permeability and structural stability in these composites hinder the effective utilization of PA. Enhancing CTP fluidity is crucial for overcoming these challenges. In this work, a novel method was developed to modify CTP utilizing various coal tar fractions, enabling controlled modulation of CTP composition and wettability. Incorporating different fractions allowed for substantial control over interfacial bonding and pore structure. The chemical composition, functional groups, and elemental content of the CTP were analyzed via X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), and proton nuclear magnetic resonance (1H NMR). Subsequently, systematic comparisons of PA materials produced from different CTP formulations demonstrated improved wettability and enhanced mechanical properties. Moreover, DFT calculations were performed to compare the adsorption energies of small molecules from different coal tar fractions with coke, reflecting the interaction strength between the molecules and the solid surface. Using micro-computed tomography (μ-CT), the refined pore structure was examined, resulting in a PA composite with an optimized balance of high strength and toughness.
KW - Prebaked anode;Wettability;Coal tar pitch;Coal tar distillate fractions;Pore structure
DO - 10.1007/s42823-025-00926-2
ER -
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli and Tu Chuanjun. (2025). Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis. Carbon Letters, 35(5), 2319-2334.
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli and Tu Chuanjun. 2025, "Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis", Carbon Letters, vol.35, no.5 pp.2319-2334. Available from: doi:10.1007/s42823-025-00926-2
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli, Tu Chuanjun "Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis" Carbon Letters 35.5 pp.2319-2334 (2025) : 2319.
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli, Tu Chuanjun. Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis. 2025; 35(5), 2319-2334. Available from: doi:10.1007/s42823-025-00926-2
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli and Tu Chuanjun. "Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis" Carbon Letters 35, no.5 (2025) : 2319-2334.doi: 10.1007/s42823-025-00926-2
Ma Jun; Zhu Shen; Wu Xueli; He Xun; Wang Weiyi; Li Juan; Yang Cheng; Liu Yanli; Tu Chuanjun. Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis. Carbon Letters, 35(5), 2319-2334. doi: 10.1007/s42823-025-00926-2
Ma Jun; Zhu Shen; Wu Xueli; He Xun; Wang Weiyi; Li Juan; Yang Cheng; Liu Yanli; Tu Chuanjun. Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis. Carbon Letters. 2025; 35(5) 2319-2334. doi: 10.1007/s42823-025-00926-2
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli, Tu Chuanjun. Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis. 2025; 35(5), 2319-2334. Available from: doi:10.1007/s42823-025-00926-2
Ma Jun, Zhu Shen, Wu Xueli, He Xun, Wang Weiyi, Li Juan, Yang Cheng, Liu Yanli and Tu Chuanjun. "Chemical composition-driven wettability and pore structure modulation in coal tar pitch for enhanced prebaked anode performance in aluminum electrolysis" Carbon Letters 35, no.5 (2025) : 2319-2334.doi: 10.1007/s42823-025-00926-2
