Catalytic oxidation properties of 3D printed ceramics with Bouligand structures | |
Xu X(徐昕)4,5; He B(何波)5; Wang YX(汪祎贤)3; Xi YT(席云泰)2; Liu DS(刘德胜)5; Ji ZY(姬忠莹)3,5; Bai LC(白利春)1; Dong F(董芳)2; Lu ZB(鲁志斌)5; Wang XL(王晓龙)3,4,5 | |
刊名 | Chemical Engineering Journal |
2023-10-15 | |
卷号 | 474期号:无页码:145504 |
关键词 | Bioinspired structural design 3D printing Bouligand structure Helicoidal catalytic ceramics VOCs catalytic oxidation |
DOI | 10.1016/j.cej.2023.145504 |
英文摘要 | Bouligand structure composed of twist-aligned nanofiber lamina as one typical biological skeleton is widely presented in various organism. Inspired by this, a strategy was proposed by coupling a novel method of 3D printing with surface modification, attempting to build the programmable helicoidal catalytic ceramics and then improving the catalytic performance. In this work, the biomimetic Bouligand architectures with different pitch angles (α), where the pitch angle is defined as the rotational angle of two adjacent twisted layer filaments, were built. Typically, the construction of bioinspired helicoidal catalytic ceramics with Bouligand structure can be divided into two steps, including the 3D printing of unidirectionally aligning ceramic filaments helical stacked helicoidal Al2O3 ceramics, and the surface functionalization of platinum (Pt) catalysts. To this end, we designed and fabricated several helicoidal catalytic ceramics with pitch angles (α) of 30°, 45°, 60°, and 90° for exploring the catalytic performances of toluene vapor, and the acquired corresponding toluene conversions at 200 °C were 92.51%, 92.46%, 90.67%, and 78.51%, respectively. Furthermore, as an optimal twisted helicoidal catalytic ceramic device rotated from 0° to 180° with a pitch angle of 30°, the conversion of toluene at 200 °C can reach 95.52%, and exhibited excellent catalytic activity, favorable repeatability, and superior water resistance in the process of toluene oxidation. Thus, the prepared helicoidal catalytic ceramic was employed to transform the airflow direction, thereby prolonging the contact time between the gas and the catalyst for improving the catalytic efficiency. Overall, the simple yet efficient method for achieving tailored catalytic performance by controlling the pitch angles, dimensions, as well as the structural motifs, that can provide valuable ideas and revelations for developing light-structure catalytic materials in the future. |
URL标识 | 查看原文 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.cn/handle/362003/30189] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Xu X(徐昕); Bai LC(白利春) |
作者单位 | 1.Key Laboratory of Traffic Safety on Track (Central South University), Ministry of Education, School of Traffic & Transportation Engineering, Central South University, Changsha 410075, China 2.State Key Laboratory for Oxo Synthesis and Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China 3.Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai, Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering, Yantai 264006, China 4.School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, China 5.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China |
推荐引用方式 GB/T 7714 | Xu X,He B,Wang YX,et al. Catalytic oxidation properties of 3D printed ceramics with Bouligand structures[J]. Chemical Engineering Journal,2023,474(无):145504. |
APA | Xu X.,He B.,Wang YX.,Xi YT.,Liu DS.,...&Wang XL.(2023).Catalytic oxidation properties of 3D printed ceramics with Bouligand structures.Chemical Engineering Journal,474(无),145504. |
MLA | Xu X,et al."Catalytic oxidation properties of 3D printed ceramics with Bouligand structures".Chemical Engineering Journal 474.无(2023):145504. |
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