Catalytic oxidation properties of 3D printed ceramics with Bouligand structures | |
Department | 固体润滑国家重点实验室(LSL) |
Xin Xu; Bo He; Yixian Wang; Yuntai Xi; Desheng Liu; Zhongying Ji; Lichun Bai; Fang Dong; Zhibin Lu; Xiaolong Wang | |
The second department | 216计算摩擦学课题组 |
2023-08-16 | |
Source Publication | Chemical Engineering Journal |
Issue | 474Pages:145504 |
Abstract | Bouligand structure composed of twist-aligned nanoffber 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 modiffcation, 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 deffned as the rotational angle of two adjacent twisted layer fflaments, 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 fflaments 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 airffow direction, thereby prolonging the contact time between the gas and the catalyst for improving the catalytic efffciency. Overall, the simple yet efffcient 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. |
Keyword | Bioinspired structural design 3D printing Bouligand structure Helicoidal catalytic ceramics VOCs catalytic oxidation |
Indexed By | SCI |
If | 15.1 |
Language | 英语 |
compositor | 第一作者单位 |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/30637 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Zhongying Ji; Xiaolong Wang |
Affiliation | 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences 2.School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University 3.Shandong Laboratory of Advanced Materials and Green Manufacturing at Yantai, Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering 4.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 5.Key Laboratory of Trafffc Safety on Track (Central South University), Ministry of Education, School of Trafffc & Transportation Engineering, Central South University |
Recommended Citation GB/T 7714 | Xin Xu,Bo He,Yixian Wang,et al. Catalytic oxidation properties of 3D printed ceramics with Bouligand structures[J]. Chemical Engineering Journal,2023(474):145504. |
APA | Xin Xu.,Bo He.,Yixian Wang.,Yuntai Xi.,Desheng Liu.,...&Xiaolong Wang.(2023).Catalytic oxidation properties of 3D printed ceramics with Bouligand structures.Chemical Engineering Journal(474),145504. |
MLA | Xin Xu,et al."Catalytic oxidation properties of 3D printed ceramics with Bouligand structures".Chemical Engineering Journal .474(2023):145504. |
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