Sustainable Lactic Acid Production from Glycerol via Hydrothermal Catalysis over Highly Dispersed Cu Nanoparticles on Bio-Tar Derived Carbon
发布时间：2025-10-16
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- 发布时间：
- 2025-10-16
- 论文名称：
- Sustainable Lactic Acid Production from Glycerol via Hydrothermal Catalysis over Highly Dispersed Cu Nanoparticles on Bio-Tar Derived Carbon
- 发表刊物：
- Journal of Environmental Chemical Engineering
- 摘要：
- Copper-based catalysts have emerged as promising candidates for the catalytic conversion of glycerol to lactic acid (LA), owing to their cost-effectiveness and high activity. However, optimizing both high conversion efficiency and selectivity in catalytic design remains a significant challenge in the catalytic design for this synthesis. In this study, we developed a highly efficient Cu-based catalyst (Cu/BC) was by optimizing copper loading on biomass tar-derived porous carbon supports. Through systematic investigation of reaction parameters and copper loading effects, the results revealed that the 20% Cu/BC catalyst achieved exceptional performance, achieving 98.97% glycerol conversion and 89.88% LA selectivity under optimized conditions (210°C, 20 h). This superior activity stems from the highly dispersed metallic copper active sites, which enhances reaction kinetics and product selectivity. Notably, excessive copper loading (>20%) induced metal aggregation, pore blockage, and diffusion limitations, thereby diminishing catalytic performance and promoted side reactions. Kinetic analysis further revealed that the 20% Cu/BC catalyst exhibited a lower activation energy (110.5 kJ·mol-1) compared to the 25% Cu/BC counterpart (125.8 kJ·mol-1) in the disappearance of LA, confirming its superior catalytic efficiency. This work not only advances rational design of non-noble metal catalysts but also provides a sustainable strategy for value-added LA production.
- 合写作者：
- Han Xu, Qi Li, Zhihao Bi, Donghai Xu, Yang Guo*
- 是否译文：
- 否
- 发表时间：
- 2025-09-13