文献类型：期刊文献

英文题名：Honeycomb-like 3D porous carbon confined polymeric solid acid for boosting biodiesel production from Jatropha curcas oil

作者：Chen, Ying Liu, Zhaopeng Zha, Wenye Dang, Lulu Yang, Qiming Gao, Yingfang Lei, Yizhu Chen, Weifeng Wan, Ya-Li

第一作者：Chen, Ying

通信作者：Lei, YZ[1];Chen, WF[1];Lei, YZ[2]

机构：[1]Liupanshui Normal Univ, Sch Chem & Mat Engn, Guizhou Prov Key Lab Coal Clean Utilizat, Liupanshui 553004, Guizhou, Peoples R China;[2]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550025, Peoples R China;[3]Dalian Univ, Coll Environm & Chem Engn, Dalian 116622, Peoples R China

第一机构：Liupanshui Normal Univ, Sch Chem & Mat Engn, Guizhou Prov Key Lab Coal Clean Utilizat, Liupanshui 553004, Guizhou, Peoples R China

通信机构：corresponding author), Liupanshui Normal Univ, Sch Chem & Mat Engn, Guizhou Prov Key Lab Coal Clean Utilizat, Liupanshui 553004, Guizhou, Peoples R China;corresponding author), Liupanshui Normal Univ, Liupanshui 553004, Peoples R China.

年份：2026

卷号：404

外文期刊名：FUEL

收录：;EI(收录号：20253018825011);WOS:【SCI-EXPANDED(收录号:WOS:001537884600005)】；

基金：The National Natural Science Foundation of China (No. 22162017) , the Natural Science Foundation of Guizhou Province (No. Qiankehe-jichu-ZK [2024] zhongdian090) , the Foundation of Guizhou Institute of Technology (No. 2024XSXM002) , the Program for High-level Innovative Talents in Guizhou Province (No. GCC [2023] 049) , Natural Science Foundation of Liupanshui (No. 52020-2023-0-2-9) , and the Foundation of Liupanshui Normal University (LPSSYLPY202323, LPSSY2023KJZDPY01) have kindly provided financial support for this research project.

语种：英文

外文关键词：Solid acid; Porous catalyst; Acidic ionic liquids; Non-edible oil; Biodiesel

摘要：Polymeric solid acids show considerable potential for facilitating the conversion of biomass macromolecules, particularly in biodiesel production. However, improving their catalytic performance through simple and effective methods remains a significant challenge. In this study, acidic ionic liquid-based amphiphilic porous polymers were successfully encapsulated into nanoporous carbon (NCP), which features a honeycomb-like threedimensional (3D) interconnected mesoporous framework, using an in-situ polymerization and successive sulfonation method. Characterization results confirmed the successful encapsulation of the polymeric solid acids within the NCP. The NCP preserved its intrinsic porous structure throughout the preparation process. This simple composite strategy confers several key advantages to the catalyst, including a 3D interconnected pore network, hierarchical porosity, a large BET surface area (218 m2 center dot g-1), a wide average pore size (13.1 nm), a high pore volume (0.82 cm3 center dot g- 1), and amphiphilic surface wettability. These structural attributes improve the mass diffusion of bulky triglyceride molecules, reduce mass transfer resistance between the methanol and oil phases, and enhance the accessibility of active sites, ultimately leading to significantly improved catalytic performance. Consequently, the optimal composite catalyst exhibited catalytic activity approximately 3 folds of that of the pure polymeric solid acids in the transesterification of Jatropha curcas oil using an identical mass amount of catalyst. With this catalyst, a biodiesel yield of 96 % was achieved. This was after 6 h at 110 degrees C, using a methanol-to-oil molar ratio of 21:1 and a catalyst loading of 3 wt%. Furthermore, the activation energy (Ea) for the transesterification process was determined to be 30.62 kJ center dot mol- 1, with a frequency factor (A) of 132.2 min- 1. The catalyst also demonstrated remarkable resistance to free fatty acids and water, maintaining high catalytic activity after five consecutive cycles. This work provides a practical strategy for enhancing the catalytic activity of polymeric solid acids and offers potential applications in the design of other organic-inorganic composite catalysts for reactions characterized by high mass transfer resistance.