{"title":"Recycle of organic ligands and solvents for successive synthesis of Cu-based nanocrystals towards CO2 hydrogenation","authors":"Yue Xin, Zicheng Xie, Rui Liu, Qi Li, Zheng Wang, Dongqiang Cao, Shuhui Li, Lantian Zhang, Sunpei Hu, Hongliang Li, Rong He, Liangbing Wang, Jie Zeng","doi":"10.1039/d4ta04883k","DOIUrl":null,"url":null,"abstract":"Colloidal synthesis serves as an advanced method for the fabrication of functional Cu-based metal oxide nanocrystals (MOx NCs) towards CO2 hydrogenation owing to its capability to finely regulate NCs and its excellent reproducibility, while its practical application is severely hindered by the high cost. The expensive organic ligands of metal precursors and the large volumes of solvents are directly discarded after the fabrication process, which dominates the cost of colloidal synthesis. Herein, we modified the traditional colloidal synthetic method for the cost-efficient production of high-quality MOx NCs with the recovery of organic ligands, synthesis solvents, and purification solvents. Furthermore, the recovered solvents were all reused for 5 rounds of successive synthesis of reproducible Cu-based multimetallic oxide NCs. The obtained CuO/ZnO/ZrO2 NCs were applied to CO2 hydrogenation and displayed a high formation rate of 413.0 mgMeOH·gcat.-1·h-1 as well as a selectivity of 77.5% towards methanol over prolonged operations, which were superior to many Cu-based catalysts reported recently.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":null,"pages":null},"PeriodicalIF":10.7000,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta04883k","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Colloidal synthesis serves as an advanced method for the fabrication of functional Cu-based metal oxide nanocrystals (MOx NCs) towards CO2 hydrogenation owing to its capability to finely regulate NCs and its excellent reproducibility, while its practical application is severely hindered by the high cost. The expensive organic ligands of metal precursors and the large volumes of solvents are directly discarded after the fabrication process, which dominates the cost of colloidal synthesis. Herein, we modified the traditional colloidal synthetic method for the cost-efficient production of high-quality MOx NCs with the recovery of organic ligands, synthesis solvents, and purification solvents. Furthermore, the recovered solvents were all reused for 5 rounds of successive synthesis of reproducible Cu-based multimetallic oxide NCs. The obtained CuO/ZnO/ZrO2 NCs were applied to CO2 hydrogenation and displayed a high formation rate of 413.0 mgMeOH·gcat.-1·h-1 as well as a selectivity of 77.5% towards methanol over prolonged operations, which were superior to many Cu-based catalysts reported recently.
期刊介绍:
The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.